start-ver=1.4 cd-journal=joma no-vol=16 cd-vols= no-issue=4 article-no= start-page=244 end-page=254 dt-received= dt-revised= dt-accepted= dt-pub-year=2024 dt-pub=202408 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A novel brief questionnaire using a face rating scale to assess dental anxiety and fear en-subtitle= kn-subtitle= en-abstract= kn-abstract=PURPOSE This study aimed to evaluate the reliability and validity of a four-item questionnaire using a face rating scale to measure dental trait anxiety (DTA), dental trait fear (DTF), dental state anxiety (DSA), and dental state fear (DSF).
MATERIALS AND METHODS Participants were consecutively selected from patients undergoing scaling (S-group; n = 47) and implant placement (I-group; n = 25). The S-group completed the questionnaire both before initial and second scaling, whereas the I-group responded on the pre-surgery day (Pre-day), the day of implant placement (Imp-day), and the day of suture removal (Post-day).
RESULTS The reliability in the S-group was evaluated using the test-retest method, showing a weighted kappa value of DTA, 0.61; DTF, 0.46; DSA, 0.67; DSF, 0.52. Criterion-related validity, assessed using the State-Trait Anxiety Inventoryfs trait anxiety and state anxiety, revealed positive correlations between trait anxiety and DTA/DTF (DTA, ƒÏ = 0.30; DTF, ƒÏ = 0.27, ƒÏ: correlation coefficient) and between state anxiety and all four items (DTA, ƒÏ = 0.41; DTF, ƒÏ = 0.32; DSA, ƒÏ = 0.25; DSF, ƒÏ = 0.25). Known-group validity was assessed using the initial data and Imp-day data from the S-group and I-group, respectively, revealing significantly higher DSA and DSF scores in the I-group than in the S-group. Responsiveness was gauged using I-group data, showing significantly lower DSA and DSF scores on post-day compared to other days.
CONCLUSION The newly developed questionnaire has acceptable reliability and validity for clinical use, suggesting its usefulness for research on dental anxiety and fear and for providing patient-specific dental care. en-copyright= kn-copyright= en-aut-name=MinoTakuya en-aut-sei=Mino en-aut-mei=Takuya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=Kimura-OnoAya en-aut-sei=Kimura-Ono en-aut-mei=Aya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=ArakawaHikaru en-aut-sei=Arakawa en-aut-mei=Hikaru kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=TokumotoKana en-aut-sei=Tokumoto en-aut-mei=Kana kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=KurosakiYoko en-aut-sei=Kurosaki en-aut-mei=Yoko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=MatsukaYoshizo en-aut-sei=Matsuka en-aut-mei=Yoshizo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=MaekawaKenji en-aut-sei=Maekawa en-aut-mei=Kenji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=KubokiTakuo en-aut-sei=Kuboki en-aut-mei=Takuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= affil-num=1 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=2 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=3 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=4 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=5 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=6 en-affil=Department of Stomatognathic Function and Occlusal Reconstruction, Graduate School of Biomedical Sciences, Tokushima University kn-affil= affil-num=7 en-affil=Department of Removable Prosthodontics and Occlusion, Osaka Dental University kn-affil= affil-num=8 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= en-keyword=Dental anxiety kn-keyword=Dental anxiety en-keyword=Anxiety disorders kn-keyword=Anxiety disorders en-keyword=Surveys kn-keyword=Surveys en-keyword=Questionnaires kn-keyword=Questionnaires en-keyword=Validation study kn-keyword=Validation study en-keyword=Phobia kn-keyword=Phobia END start-ver=1.4 cd-journal=joma no-vol=68 cd-vols= no-issue=1 article-no= start-page=139 end-page=146 dt-received= dt-revised= dt-accepted= dt-pub-year=2023 dt-pub=2023 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Tooth morphology fusion technique is more accurate than conventional technique in transferring morphology of provisional to definitive screw-retained, implant-supported crown: A preliminary intervention study en-subtitle= kn-subtitle= en-abstract= kn-abstract=Purpose: To compare the accuracy of the tooth morphology fusion (TMF) digital technique and customized impression transfer coping (conventional) technique when transferring the morphology of a provisional crown to a definitive screw-retained implant-supported crown.
Methods: Six cases of partial edentulism (one anterior and five posterior) treated with oral implant placement in our clinic for the loss of three or fewer teeth in the maxilla or mandible between April 2017 and September 2018 were included. After implant placement and re-entry surgery, provisional restorations were made and adjusted to obtain the ideal morphology. Two definitive restorations were constructed by transferring the complete morphology of the provisional restorations, including the subgingival contour, using the TMF digital and conventional techniques. Three sets of surface morphological data were obtained using a desktop scanner. The three-dimensional total discrepancy volume (TDV) between the provisional restoration (reference) and the two definitive restorations was digitally measured by overlapping the surface data of the stone cast using the Boolean operation. Each TDV ratio (%) was calculated by dividing the TDV by the volume of provisional restoration. The median TDV ratios for TMF and conventional techniques were compared using the Wilcoxon signed-rank test.
Results: The median TDV ratio between provisional and definitive restorations constructed using the TMF digital technique (8.05%) was significantly lower than that obtained using the conventional technique (13.56%, P < 0.05).
Conclusions: In this preliminary intervention study, the TMF digital technique was more accurate than the conventional technique for the transfer of morphology from provisional to definitive prosthesis. en-copyright= kn-copyright= en-aut-name=MinoTakuya en-aut-sei=Mino en-aut-mei=Takuya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=KurosakiYoko en-aut-sei=Kurosaki en-aut-mei=Yoko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=TokumotoKana en-aut-sei=Tokumoto en-aut-mei=Kana kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=IzumiKoji en-aut-sei=Izumi en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=MitsumuneHiroshi en-aut-sei=Mitsumune en-aut-mei=Hiroshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=MaekawaKenji en-aut-sei=Maekawa en-aut-mei=Kenji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=UedaAkihiro en-aut-sei=Ueda en-aut-mei=Akihiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=NakanoTomohito en-aut-sei=Nakano en-aut-mei=Tomohito kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= en-aut-name=SejimaJunichi en-aut-sei=Sejima en-aut-mei=Junichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=9 ORCID= en-aut-name=Kimura-OnoAya en-aut-sei=Kimura-Ono en-aut-mei=Aya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=10 ORCID= en-aut-name=KubokiTakuo en-aut-sei=Kuboki en-aut-mei=Takuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=11 ORCID= affil-num=1 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=2 en-affil=Department of Oral Rehabilitation and Implantology, Okayama University Hospital kn-affil= affil-num=3 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=4 en-affil=SHIKEN Corporation kn-affil= affil-num=5 en-affil=SHIKEN Corporation kn-affil= affil-num=6 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=7 en-affil=Dental Technician Laboratory, Okayama University Hospital kn-affil= affil-num=8 en-affil=Dental Technician Laboratory, Okayama University Hospital kn-affil= affil-num=9 en-affil=Dental Technician Laboratory, Okayama University Hospital kn-affil= affil-num=10 en-affil=Department of Oral Rehabilitation and Implantology, Okayama University Hospital kn-affil= affil-num=11 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= en-keyword=Computer-aided design kn-keyword=Computer-aided design en-keyword=Dental implants kn-keyword=Dental implants en-keyword=Superstructure kn-keyword=Superstructure en-keyword=Provisional restoration kn-keyword=Provisional restoration en-keyword=Digital workflow kn-keyword=Digital workflow END start-ver=1.4 cd-journal=joma no-vol=67 cd-vols= no-issue=2 article-no= start-page=189 end-page=195 dt-received= dt-revised= dt-accepted= dt-pub-year=2023 dt-pub=2023 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Prosthodontic treatment can improve the ingestible food profile in Japanese adult outpatients en-subtitle= kn-subtitle= en-abstract= kn-abstract=Purpose: To investigate the effect of prosthodontic treatment on the ingestible food profile in adult Japanese outpatients, and to identify the related risk factors that can deteriorate the profile.
Methods: The participants were 277 outpatients who visited university-based specialty clinics in Japan for prosthodontic treatment. The demographic data, number of present teeth assessed via intraoral examination, and oral health-related quality of life assessed by the total Oral Health Impact Profile (OHIP-J54) scores of all participants were recorded before treatment. Ingestible food profile score (IFS) was recorded using a validated food intake questionnaire. Eligible participants who answered the questionnaire before and after treatment were categorized into five groups based on the prosthodontic treatments they received (i.e., crowns, bridges, removable partial dentures, removable complete dentures, and removable complete and partial dentures).
Results: Multivariate analysis of covariance revealed a statistically significant main effect of prosthodontic intervention (time course: before and after treatment) on mean IFS (P=0.035, F=4.526), even after adjusting for covariates (age, number of present teeth, and treatment modality). Multiple linear regression analysis revealed that the low number of present teeth (r=0.427, P<0.001) and a high OHIP-J54 total score (r=-0.519, P<0.001) of the patients at the baseline were significantly associated with their baseline IFSs, even after adjusting for confounding variables.
Conclusions: The findings of this multicenter follow-up study indicate the importance of prosthodontic rehabilitation in improving patientsf ingestible food profiles. en-copyright= kn-copyright= en-aut-name=Kimura-OnoAya en-aut-sei=Kimura-Ono en-aut-mei=Aya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=MaekawaKenji en-aut-sei=Maekawa en-aut-mei=Kenji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=KubokiTakuo en-aut-sei=Kuboki en-aut-mei=Takuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=NawachiKumiko en-aut-sei=Nawachi en-aut-mei=Kumiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=FujisawaMasanori en-aut-sei=Fujisawa en-aut-mei=Masanori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=SatoHironobu en-aut-sei=Sato en-aut-mei=Hironobu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=AitaHideki en-aut-sei=Aita en-aut-mei=Hideki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=KoyamaShigeto en-aut-sei=Koyama en-aut-mei=Shigeto kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= en-aut-name=HideshimaMasayuki en-aut-sei=Hideshima en-aut-mei=Masayuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=9 ORCID= en-aut-name=SatoYuji en-aut-sei=Sato en-aut-mei=Yuji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=10 ORCID= en-aut-name=WakeHiroyuki en-aut-sei=Wake en-aut-mei=Hiroyuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=11 ORCID= en-aut-name=NagaoKan en-aut-sei=Nagao en-aut-mei=Kan kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=12 ORCID= en-aut-name=Kodaira-UedaYorika en-aut-sei=Kodaira-Ueda en-aut-mei=Yorika kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=13 ORCID= en-aut-name=TamakiKatsushi en-aut-sei=Tamaki en-aut-mei=Katsushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=14 ORCID= en-aut-name=SadamoriShinsuke en-aut-sei=Sadamori en-aut-mei=Shinsuke kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=15 ORCID= en-aut-name=TsugaKazuhiro en-aut-sei=Tsuga en-aut-mei=Kazuhiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=16 ORCID= en-aut-name=NishiYasuhiro en-aut-sei=Nishi en-aut-mei=Yasuhiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=17 ORCID= en-aut-name=SawaseTakashi en-aut-sei=Sawase en-aut-mei=Takashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=18 ORCID= en-aut-name=KoshinoHisashi en-aut-sei=Koshino en-aut-mei=Hisashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=19 ORCID= en-aut-name=MasumiShin-ichi en-aut-sei=Masumi en-aut-mei=Shin-ichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=20 ORCID= en-aut-name=SakuraiKaoru en-aut-sei=Sakurai en-aut-mei=Kaoru kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=21 ORCID= en-aut-name=IshibashiKanji en-aut-sei=Ishibashi en-aut-mei=Kanji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=22 ORCID= en-aut-name=OhyamaTakashi en-aut-sei=Ohyama en-aut-mei=Takashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=23 ORCID= en-aut-name=AkagawaYasumasa en-aut-sei=Akagawa en-aut-mei=Yasumasa kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=24 ORCID= en-aut-name=HiraiToshihiro en-aut-sei=Hirai en-aut-mei=Toshihiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=25 ORCID= en-aut-name=SasakiKeiichi en-aut-sei=Sasaki en-aut-mei=Keiichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=26 ORCID= en-aut-name=KoyanoKiyoshi en-aut-sei=Koyano en-aut-mei=Kiyoshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=27 ORCID= en-aut-name=YataniHirofumi en-aut-sei=Yatani en-aut-mei=Hirofumi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=28 ORCID= en-aut-name=MatsumuraHideo en-aut-sei=Matsumura en-aut-mei=Hideo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=29 ORCID= en-aut-name=IchikawaTetsuo en-aut-sei=Ichikawa en-aut-mei=Tetsuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=30 ORCID= en-aut-name=OhkawaShuji en-aut-sei=Ohkawa en-aut-mei=Shuji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=31 ORCID= en-aut-name=BabaKazuyoshi en-aut-sei=Baba en-aut-mei=Kazuyoshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=32 ORCID= affil-num=1 en-affil=Center for Innovative Clinical Medicine, Okayama University Hospital kn-affil= affil-num=2 en-affil=Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=3 en-affil=Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=4 en-affil=Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=5 en-affil=Meikai University School of Dentistry kn-affil= affil-num=6 en-affil=Fukuoka Dental College Graduate School of Dental Science kn-affil= affil-num=7 en-affil=Tohoku University Graduate School of Dentistry kn-affil= affil-num=8 en-affil=Tohoku University Graduate School of Dentistry, Japan kn-affil= affil-num=9 en-affil=Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences kn-affil= affil-num=10 en-affil=Showa University School of Dentistry kn-affil= affil-num=11 en-affil=Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences kn-affil= affil-num=12 en-affil=Tokushima University Graduate School of Biomedical Sciences kn-affil= affil-num=13 en-affil=Tokyo Dental College kn-affil= affil-num=14 en-affil=Kanagawa Dental University Graduate School kn-affil= affil-num=15 en-affil=Ministry of Health, Labour, and Welfare, Chugoku-Shikoku Regional Bureau of Health and Welfare kn-affil= affil-num=16 en-affil=Hiroshima University Graduate School of Biomedical and Health Sciences kn-affil= affil-num=17 en-affil=Kagoshima University Graduate School of Medical and Dental Sciences kn-affil= affil-num=18 en-affil=Nagasaki University Graduate School of Biomedical Sciences kn-affil= affil-num=19 en-affil=Health Sciences University of Hokkaido School of Dentistry kn-affil= affil-num=20 en-affil=Kyushu Dental University kn-affil= affil-num=21 en-affil=Tokyo Dental College kn-affil= affil-num=22 en-affil=Iwate Medical University School of Dentistry kn-affil= affil-num=23 en-affil=Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences kn-affil= affil-num=24 en-affil=Hiroshima University Graduate School of Biomedical and Health Sciences kn-affil= affil-num=25 en-affil=Health Sciences University of Hokkaido School of Dentistry kn-affil= affil-num=26 en-affil=Tohoku University Graduate School of Dentistry kn-affil= affil-num=27 en-affil=Kyushu University Faculty of Dental Science kn-affil= affil-num=28 en-affil=Osaka University Graduate School of Dentistry kn-affil= affil-num=29 en-affil=Nihon University School of Dentistry kn-affil= affil-num=30 en-affil=Tokushima University Graduate School of Biomedical Sciences kn-affil= affil-num=31 en-affil=Meikai University School of Dentistry kn-affil= affil-num=32 en-affil=Showa University School of Dentistry kn-affil= en-keyword=Dietary diversity kn-keyword=Dietary diversity en-keyword=Ingestible foods kn-keyword=Ingestible foods en-keyword=Oral-health quality of life kn-keyword=Oral-health quality of life en-keyword=Prosthodontic rehabilitation kn-keyword=Prosthodontic rehabilitation END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=12 article-no= start-page=1032 end-page=1039 dt-received= dt-revised= dt-accepted= dt-pub-year=2022 dt-pub=20221121 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Impact of number of functional teeth on independence of Japanese older adults en-subtitle= kn-subtitle= en-abstract= kn-abstract=Aim
To examine the relationship between the number of present and functional teeth at baseline and future incidence of loss of independence.

Methods
Participants were community-dwelling older individuals who participated in a comprehensive geriatric health examination conducted in Kusatsu town, Japan, between 2009 and 2015. The primary endpoint was the incidence of loss of independence among participants, defined as the first certification of long-term care insurance in Japan. The numbers of present and functional teeth at baseline were determined via an oral examination. Demographics, clinical variables (e.g., history of chronic diseases and psychosocial factors), blood nutritional markers, physical functions, and perceived masticatory function were assessed.

Results
This study included 1121 individuals, and 205 individuals suffered from loss of independence during the follow-up period. Kaplan?Meier estimates of loss of independence for participants with smaller numbers of present and functional teeth were significantly greater than for those with larger numbers of teeth. Cox proportional hazard analyses indicated that a smaller number of present teeth was not a significant risk factor after adjusting for demographic characteristics. However, the number of functional teeth was a significant risk factor after the adjustment (hazard ratio: 1.975 [1.168?3.340]). Additionally, higher hazard ratios were observed in other adjusted models, but they were not statistically significant.

Conclusions
The number of functional teeth may be more closely related to the future incidence of loss of independence than the number of present teeth. This novel finding suggests that prosthodontic rehabilitation for tooth loss possibly prevents the future incidence of this life-event. en-copyright= kn-copyright= en-aut-name=MaekawaKenji en-aut-sei=Maekawa en-aut-mei=Kenji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=IkeuchiTomoko en-aut-sei=Ikeuchi en-aut-mei=Tomoko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=ShinkaiShoji en-aut-sei=Shinkai en-aut-mei=Shoji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=HiranoHirohiko en-aut-sei=Hirano en-aut-mei=Hirohiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=RyuMasahiro en-aut-sei=Ryu en-aut-mei=Masahiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=TamakiKatsushi en-aut-sei=Tamaki en-aut-mei=Katsushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=YataniHirofumi en-aut-sei=Yatani en-aut-mei=Hirofumi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=KubokiTakuo en-aut-sei=Kuboki en-aut-mei=Takuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= en-aut-name=Kimura]OnoAya en-aut-sei=Kimura]Ono en-aut-mei=Aya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=9 ORCID= en-aut-name=KikutaniTakeshi en-aut-sei=Kikutani en-aut-mei=Takeshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=10 ORCID= en-aut-name=SuganumaTakashi en-aut-sei=Suganuma en-aut-mei=Takashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=11 ORCID= en-aut-name=AyukawaYasunori en-aut-sei=Ayukawa en-aut-mei=Yasunori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=12 ORCID= en-aut-name=GondaTomoya en-aut-sei=Gonda en-aut-mei=Tomoya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=13 ORCID= en-aut-name=OgawaToru en-aut-sei=Ogawa en-aut-mei=Toru kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=14 ORCID= en-aut-name=FujisawaMasanori en-aut-sei=Fujisawa en-aut-mei=Masanori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=15 ORCID= en-aut-name=IshigakiShoichi en-aut-sei=Ishigaki en-aut-mei=Shoichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=16 ORCID= en-aut-name=WatanabeYutaka en-aut-sei=Watanabe en-aut-mei=Yutaka kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=17 ORCID= en-aut-name=KitamuraAkihiko en-aut-sei=Kitamura en-aut-mei=Akihiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=18 ORCID= en-aut-name=TaniguchiYu en-aut-sei=Taniguchi en-aut-mei=Yu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=19 ORCID= en-aut-name=FujiwaraYoshinori en-aut-sei=Fujiwara en-aut-mei=Yoshinori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=20 ORCID= en-aut-name=EdahiroAyako en-aut-sei=Edahiro en-aut-mei=Ayako kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=21 ORCID= en-aut-name=OharaYuki en-aut-sei=Ohara en-aut-mei=Yuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=22 ORCID= en-aut-name=FuruyaJunichi en-aut-sei=Furuya en-aut-mei=Junichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=23 ORCID= en-aut-name=NakajimaJunko en-aut-sei=Nakajima en-aut-mei=Junko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=24 ORCID= en-aut-name=UmekiKento en-aut-sei=Umeki en-aut-mei=Kento kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=25 ORCID= en-aut-name=IgarashiKentaro en-aut-sei=Igarashi en-aut-mei=Kentaro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=26 ORCID= en-aut-name=HoribeYasuhiro en-aut-sei=Horibe en-aut-mei=Yasuhiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=27 ORCID= en-aut-name=KugimiyaYoshihiro en-aut-sei=Kugimiya en-aut-mei=Yoshihiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=28 ORCID= en-aut-name=KawaiYasuhiko en-aut-sei=Kawai en-aut-mei=Yasuhiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=29 ORCID= en-aut-name=MatsumuraHideo en-aut-sei=Matsumura en-aut-mei=Hideo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=30 ORCID= en-aut-name=IchikawaTetsuo en-aut-sei=Ichikawa en-aut-mei=Tetsuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=31 ORCID= en-aut-name=OhkawaShuji en-aut-sei=Ohkawa en-aut-mei=Shuji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=32 ORCID= en-aut-name=BabaKazuyoshi en-aut-sei=Baba en-aut-mei=Kazuyoshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=33 ORCID= en-aut-name=Kusatsu ISLE Study Working Group Collaborators en-aut-sei=Kusatsu ISLE Study Working Group Collaborators en-aut-mei= kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=34 ORCID= affil-num=1 en-affil=Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=2 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=3 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=4 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=5 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=6 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=7 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=8 en-affil=Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=9 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=10 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=11 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=12 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=13 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=14 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=15 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=16 en-affil=Research Planning and Promotion Committee Japan Prosthodontic Society kn-affil= affil-num=17 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=18 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=19 en-affil=National Institute for Environmental Studies kn-affil= affil-num=20 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=21 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=22 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=23 en-affil=Showa University School of Dentistry kn-affil= affil-num=24 en-affil=Tokyo Dental College kn-affil= affil-num=25 en-affil=Nihon University School of Dentistry at Matsudo kn-affil= affil-num=26 en-affil=Nihon University School of Dentistry at Matsudo kn-affil= affil-num=27 en-affil=Tokyo Dental College kn-affil= affil-num=28 en-affil=Tokyo Dental College kn-affil= affil-num=29 en-affil=Nihon University School of Dentistry at Matsudo kn-affil= affil-num=30 en-affil=Nihon University School of Dentistry kn-affil= affil-num=31 en-affil=Tokushima University Graduate School Institute of Biomedical Sciences kn-affil= affil-num=32 en-affil=Meikai University School of Dentistry kn-affil= affil-num=33 en-affil=Showa University School of Dentistry kn-affil= affil-num=34 en-affil= kn-affil= en-keyword=community-dwelling older adults kn-keyword=community-dwelling older adults en-keyword=functional teeth kn-keyword=functional teeth en-keyword=loss of independence kn-keyword=loss of independence en-keyword=oral health kn-keyword=oral health en-keyword=present teeth kn-keyword=present teeth END start-ver=1.4 cd-journal=joma no-vol=16 cd-vols= no-issue=1 article-no= start-page=380 end-page=388 dt-received= dt-revised= dt-accepted= dt-pub-year=2021 dt-pub=20210131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A comparison of colorimetric and visual methods for the assessment of masticatory performance with color-changeable chewing gum in older persons en-subtitle= kn-subtitle= en-abstract= kn-abstract=Background/purpose
Color-changeable chewing gum is used for the evaluation of masticatory performance. However, it is currently unclear whether colorimetric and visual assessment methods yield consistent results. This study aimed to clarify the consistency between colorimetric and visual methods used for the evaluation of color changes in color-changeable chewing gum.
Materials and methods
The sample comprised 644 older persons (mean age, 75.4?}?6.4 years). The chewing gum was masticated 60 times at the participant's own chewing rate and then expectorated. The color of the chewing gum was evaluated with the ƒ¢E values and a? values, measured using a colorimeter, and the 10 Color Shades (10CSh) and 5 Color Scales (5CSc), using visual evaluation. Spearman's correlation analysis was performed to examine the correlation between the results obtained by the four methods. The significance level was set at ƒ¿?=?0.05.
Results
The ĢE values, a? values, 10CSh scores, and 5CSc scores were all significantly correlated. The highest correlation coefficient (0.979) was between the ĢE values and a? values. The lowest correlation coefficient (0.847) was between the a? values and 5CSc scores. Decreased masticatory performance was observed with increased age.
Conclusion
Significant correlations were found for all four methods used in the assessment of masticatory performance with color-changeable chewing gum. While visually based assessments are valid, colorimetric methods are more sensitive to smaller changes in masticatory performance. en-copyright= kn-copyright= en-aut-name=KugimiyaYoshihiro en-aut-sei=Kugimiya en-aut-mei=Yoshihiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=WatanabeYutaka en-aut-sei=Watanabe en-aut-mei=Yutaka kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=ShirobeMaki en-aut-sei=Shirobe en-aut-mei=Maki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=MotohashiYoshiko en-aut-sei=Motohashi en-aut-mei=Yoshiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=MotokawaKeiko en-aut-sei=Motokawa en-aut-mei=Keiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=EdahiroAyako en-aut-sei=Edahiro en-aut-mei=Ayako kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=OharaYuki en-aut-sei=Ohara en-aut-mei=Yuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=RyuMasahiro en-aut-sei=Ryu en-aut-mei=Masahiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= en-aut-name=IgarashiKentaro en-aut-sei=Igarashi en-aut-mei=Kentaro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=9 ORCID= en-aut-name=HoshinoDaichi en-aut-sei=Hoshino en-aut-mei=Daichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=10 ORCID= en-aut-name=NakajimaJunko en-aut-sei=Nakajima en-aut-mei=Junko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=11 ORCID= en-aut-name=UedaTakayuki en-aut-sei=Ueda en-aut-mei=Takayuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=12 ORCID= en-aut-name=TaniguchiYu en-aut-sei=Taniguchi en-aut-mei=Yu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=13 ORCID= en-aut-name=OgawaToru en-aut-sei=Ogawa en-aut-mei=Toru kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=14 ORCID= en-aut-name=MaekawaKenji en-aut-sei=Maekawa en-aut-mei=Kenji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=15 ORCID= en-aut-name=TamakiKatsushi en-aut-sei=Tamaki en-aut-mei=Katsushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=16 ORCID= en-aut-name=KubokiTakuo en-aut-sei=Kuboki en-aut-mei=Takuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=17 ORCID= en-aut-name=KitamuraAkihiko en-aut-sei=Kitamura en-aut-mei=Akihiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=18 ORCID= en-aut-name=ShinkaiShoji en-aut-sei=Shinkai en-aut-mei=Shoji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=19 ORCID= en-aut-name=HiranoHirohiko en-aut-sei=Hirano en-aut-mei=Hirohiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=20 ORCID= affil-num=1 en-affil=Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College kn-affil= affil-num=2 en-affil=Gerodontology, Department of Oral Health Science, Faculty of Dental Medicine, Hokkaido University kn-affil= affil-num=3 en-affil=The Tokyo Metropolitan Support Center for Preventative Long-term and Frail Elderly Care kn-affil= affil-num=4 en-affil=Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=5 en-affil=Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=6 en-affil=Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=7 en-affil=Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=8 en-affil=Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College kn-affil= affil-num=9 en-affil=Removable Prosthodontics, Nihon University School of Dentistry at Matsudo kn-affil= affil-num=10 en-affil=Special Needs Dentistry, Division of Community Based Comprehensive Dentistry, School of Dentistry, Showa University kn-affil= affil-num=11 en-affil=Department of Oral Medicine and Hospital Dentistry, Tokyo Dental College kn-affil= affil-num=12 en-affil=Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College kn-affil= affil-num=13 en-affil=Center for Health and Environmental Risk Research, National Institute for Environmental Studies kn-affil= affil-num=14 en-affil=Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry kn-affil= affil-num=15 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=16 en-affil=Department of Critical Care Medicine and Dentistry, Division of Prosthodontic Dentistry for Function of TMJ and Occlusion, Graduate School of Dentistry, Kanagawa Dental University kn-affil= affil-num=17 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=18 en-affil=Research Team for Social Participation and Health Promotion, Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=19 en-affil=Social Sciences and Human Care, Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=20 en-affil=Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology kn-affil= en-keyword=Aged kn-keyword=Aged en-keyword=Chewing gum kn-keyword=Chewing gum en-keyword=Colorimetry kn-keyword=Colorimetry en-keyword=Color kn-keyword=Color en-keyword=Mastication kn-keyword=Mastication END start-ver=1.4 cd-journal=joma no-vol=20 cd-vols= no-issue=6 article-no= start-page=607 end-page=614 dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=20200614 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Number of functional teeth more strongly predicts all]cause mortality than number of present teeth in Japanese older adults en-subtitle= kn-subtitle= en-abstract= kn-abstract=Aim
Previous studies on the association between intraoral conditions and mortality in community]dwelling older individuals reported that fewer present teeth (PT) are significant risk factors for mortality. However, how the number of PT relative to the number of functional teeth (FT), including both present and rehabilitated teeth, influences mortality has not been investigated fully. This study examined the impact of the number of FT on mortality among community]dwelling Japanese older adults.
Methods
This study was a retrospective, observational and population]based follow]up study, which examined 1188 older individuals who participated in an annual geriatric health examination from 2009 to 2015. The average follow]up period was 1697.0?}?774.5?days. The primary outcome was all]cause mortality at follow]up. The numbers of PT and FT of each participant were counted during an oral examination. In addition, demographics, clinical variables, blood nutrient markers, physical functions and perceived masticatory function were measured.
Results
Kaplan?Meier analysis, followed by a log]rank test, revealed that fewer PT (P? Conclusions
Current results suggest that the number of FT more strongly predicts all]cause mortality than the number of PT among community]dwelling older adults. Further studies are necessary to consider the confounding of socioeconomic status and disability status. en-copyright= kn-copyright= en-aut-name=MaekawaKenji en-aut-sei=Maekawa en-aut-mei=Kenji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=IkeuchiTomoko en-aut-sei=Ikeuchi en-aut-mei=Tomoko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=ShinkaiShoji en-aut-sei=Shinkai en-aut-mei=Shoji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=HiranoHirohiko en-aut-sei=Hirano en-aut-mei=Hirohiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=RyuMasahiro en-aut-sei=Ryu en-aut-mei=Masahiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=TamakiKatsushi en-aut-sei=Tamaki en-aut-mei=Katsushi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=YataniHirofumi en-aut-sei=Yatani en-aut-mei=Hirofumi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=KubokiTakuo en-aut-sei=Kuboki en-aut-mei=Takuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= en-aut-name=Kusatsu ISLE Study Working Group Collaborators en-aut-sei=Kusatsu ISLE Study Working Group Collaborators en-aut-mei= kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=9 ORCID= en-aut-name=Kimura]Ono Aya en-aut-sei=Kimura]Ono en-aut-mei=Aya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=10 ORCID= en-aut-name=KikutanTakeshi en-aut-sei=Kikutan en-aut-mei=Takeshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=11 ORCID= en-aut-name=SuganumaTakashi en-aut-sei=Suganuma en-aut-mei=Takashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=12 ORCID= en-aut-name=AyukawaYasunori en-aut-sei=Ayukawa en-aut-mei=Yasunori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=13 ORCID= en-aut-name=GondaTomoya en-aut-sei=Gonda en-aut-mei=Tomoya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=14 ORCID= en-aut-name=OgawaToru en-aut-sei=Ogawa en-aut-mei=Toru kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=15 ORCID= en-aut-name=FujisawaMasanori en-aut-sei=Fujisawa en-aut-mei=Masanori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=16 ORCID= en-aut-name=Ishigaki Shoichi en-aut-sei=Ishigaki en-aut-mei=Shoichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=17 ORCID= en-aut-name=WatanabeYutaka en-aut-sei=Watanabe en-aut-mei=Yutaka kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=18 ORCID= en-aut-name=KitamuraAkihiko en-aut-sei=Kitamura en-aut-mei=Akihiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=19 ORCID= en-aut-name=Taniguchi Yu en-aut-sei=Taniguchi en-aut-mei=Yu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=20 ORCID= en-aut-name=FujiwaraYoshinori en-aut-sei=Fujiwara en-aut-mei=Yoshinori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=21 ORCID= en-aut-name=EdahiroAyako en-aut-sei=Edahiro en-aut-mei=Ayako kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=22 ORCID= en-aut-name=Ohara Yuki en-aut-sei=Ohara en-aut-mei= Yuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=23 ORCID= en-aut-name=FuruyaJunichi en-aut-sei=Furuya en-aut-mei=Junichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=24 ORCID= en-aut-name=NakajimaJunko en-aut-sei=Nakajima en-aut-mei=Junko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=25 ORCID= en-aut-name=UmekiKento en-aut-sei=Umeki en-aut-mei=Kento kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=26 ORCID= en-aut-name=IgarashiKentaro en-aut-sei=Igarashi en-aut-mei=Kentaro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=27 ORCID= en-aut-name=Horibeasuhiro en-aut-sei=Horibe en-aut-mei=asuhiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=28 ORCID= en-aut-name=KugimiyaYoshihiro en-aut-sei=Kugimiya en-aut-mei=Yoshihiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=29 ORCID= en-aut-name=KawaiYasuhiko en-aut-sei=Kawai en-aut-mei=Yasuhiko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=30 ORCID= en-aut-name=MatsumuraHideo en-aut-sei=Matsumura en-aut-mei=Hideo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=31 ORCID= en-aut-name=IchikawaTetsuo en-aut-sei=Ichikawa en-aut-mei=Tetsuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=32 ORCID= en-aut-name=Ohkawa Shuji en-aut-sei=Ohkawa en-aut-mei= Shuji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=33 ORCID= affil-num=1 en-affil=Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=2 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=3 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=4 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=5 en-affil=Research Planning and Promotion Committee kn-affil= affil-num=6 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=7 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=8 en-affil=Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=9 en-affil= kn-affil= affil-num=10 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=11 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=12 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=13 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=14 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=15 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=16 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=17 en-affil=Research Planning and Promotion Committee, Japan Prosthodontic Society kn-affil= affil-num=18 en-affil=Hokkaido University Faculty of Dental Medicine kn-affil= affil-num=19 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=20 en-affil=National Institute for Environmental Studies kn-affil= affil-num=21 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=22 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=23 en-affil=Tokyo Metropolitan Institute of Gerontology kn-affil= affil-num=24 en-affil=Tokyo Medical and Dental University kn-affil= affil-num=25 en-affil=Tokyo Dental College kn-affil= affil-num=26 en-affil=Nihon University School of Dentistry at Matsudo kn-affil= affil-num=27 en-affil=Nihon University School of Dentistry at Matsudo kn-affil= affil-num=28 en-affil=Tokyo Dental College kn-affil= affil-num=29 en-affil=Tokyo Dental College kn-affil= affil-num=30 en-affil=Nihon University School of Dentistry at Matsudo kn-affil= affil-num=31 en-affil=Nihon University School of Dentistry kn-affil= affil-num=32 en-affil=Tokushima University Graduate School, Institute of Biomedical Sciences kn-affil= affil-num=33 en-affil=Meikai University School of Dentistry kn-affil= en-keyword=functional teeth kn-keyword=functional teeth en-keyword=mortality kn-keyword=mortality en-keyword=present teeth kn-keyword=present teeth en-keyword=risk factor kn-keyword=risk factor END start-ver=1.4 cd-journal=joma no-vol=21 cd-vols= no-issue=21 article-no= start-page=7967 end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=20201027 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Distinct Osteogenic Potentials of BMP-2 and FGF-2 in Extramedullary and Medullary Microenvironments en-subtitle= kn-subtitle= en-abstract= kn-abstract=Bone morphogenetic protein-2 (BMP-2) and fibroblast growth factor-2 (FGF-2) have been regarded as the major cytokines promoting bone formation, however, several studies have reported unexpected results with failure of bone formation or bone resorption of these growth factors. In this study, BMP-2 and FGF-2 adsorbed into atellocollagen sponges were transplanted into bone defects in the bone marrow-scarce calvaria (extramedullary environment) and bone marrow-abundant femur (medullary environment) for analysis of their in vivo effects not only on osteoblasts, osteoclasts but also on bone marrow cells. The results showed that BMP-2 induced high bone formation in the bone marrow-scarce calvaria, but induced bone resorption in the bone marrow-abundant femurs. On the other hand, FGF-2 showed opposite effects compared to those of BMP-2. Analysis of cellular dynamics revealed numerous osteoblasts and osteoclasts present in the newly-formed bone induced by BMP-2 in calvaria, but none were seen in either control or FGF-2-transplanted groups. On the other hand, in the femur, numerous osteoclasts were observed in the vicinity of the BMP-2 pellet, while a great number of osteoblasts were seen near the FGF-2 pellets or in the control group. Of note, FCM analysis showed that both BMP-2 and FGF-2 administrated in the femur did not significantly affect the hematopoietic cell population, indicating a relatively safe application of the two growth factors. Together, these results indicate that BMP-2 could be suitable for application in extramedullary bone regeneration, whereas FGF-2 could be suitable for application in medullary bone regeneration. en-copyright= kn-copyright= en-aut-name=NoshoShuji en-aut-sei=Nosho en-aut-mei=Shuji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TosaIkue en-aut-sei=Tosa en-aut-mei=Ikue kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=OnoMitsuaki en-aut-sei=Ono en-aut-mei=Mitsuaki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=HaraEmilio Satoshi en-aut-sei=Hara en-aut-mei=Emilio Satoshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=IshibashiKei en-aut-sei=Ishibashi en-aut-mei=Kei kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=MikaiAkihiro en-aut-sei=Mikai en-aut-mei=Akihiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=TanakaYukie en-aut-sei=Tanaka en-aut-mei=Yukie kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=Kimura-OnoAya en-aut-sei=Kimura-Ono en-aut-mei=Aya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= en-aut-name=KomoriTaishi en-aut-sei=Komori en-aut-mei=Taishi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=9 ORCID= en-aut-name=MaekawaKenji en-aut-sei=Maekawa en-aut-mei=Kenji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=10 ORCID= en-aut-name=KubokiTakuo en-aut-sei=Kuboki en-aut-mei=Takuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=11 ORCID= en-aut-name=OohashiToshitaka en-aut-sei=Oohashi en-aut-mei=Toshitaka kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=12 ORCID= affil-num=1 en-affil=Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=2 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=3 en-affil=Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=4 en-affil=Department of Biomaterials, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=5 en-affil=Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=6 en-affil=Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=7 en-affil=Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=8 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=9 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=10 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=11 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= affil-num=12 en-affil=Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences kn-affil= en-keyword=BMP-2 kn-keyword=BMP-2 en-keyword=FGF-2 kn-keyword=FGF-2 en-keyword=bone formation kn-keyword=bone formation en-keyword=bone marrow kn-keyword=bone marrow END start-ver=1.4 cd-journal=joma no-vol=63 cd-vols= no-issue=1 article-no= start-page=125 end-page=129 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=20190131 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Digital transfer of the subgingival contour and emergence profile of the provisional restoration to the final bone-anchored fixed restoration en-subtitle= kn-subtitle= en-abstract= kn-abstract=PURPOSE:
This report was written to introduce an attempt at clinical application of our newly developed digital workflow to reproduce the morphology of the subgingival contour and the emergence profile of the provisional restoration within the final bone-anchored fixed restoration, using a bounded unilateral edentulous case.
METHODS:
This digital workflow involves superimposition of the composite images of two specific types of working casts onto the working cast for the provisional restoration namely, a split cast screwed with a titanium base and a split cast screwed with a provisional restoration and integrating these with the whole intraoral surface image, in which the provisional restoration was present. The final restoration fabricated using this technique could be installed without any clinical problems. The results of in silico analysis revealed that the cubic volume ratio of the total discrepancy between the provisional and the final restorations was only 2.4%. Further, sufficient oral hygiene was maintained and the patient was satisfied with the outcome of the treatment.
CONCLUSIONS:
This technical report suggests that our newly developed digital workflow provided clinical applicability and may enable accurate transfer of the morphology of the subgingival contour and emergence profile of the provisional to the final bone-anchored fixed restoration. en-copyright= kn-copyright= en-aut-name=KurosakiYoko en-aut-sei=Kurosaki en-aut-mei=Yoko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=MinoTakuya en-aut-sei=Mino en-aut-mei=Takuya kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=MaekawaKenji en-aut-sei=Maekawa en-aut-mei=Kenji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=IzumiKoji en-aut-sei=Izumi en-aut-mei=Koji kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=KubokiTakuo en-aut-sei=Kuboki en-aut-mei=Takuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= affil-num=1 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=2 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=3 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= affil-num=4 en-affil=SHIKEN Corporation kn-affil= affil-num=5 en-affil=Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences kn-affil= en-keyword=Digital transfer kn-keyword=Digital transfer en-keyword=Emergence profile kn-keyword=Emergence profile en-keyword=Implant fixed restoration kn-keyword=Implant fixed restoration en-keyword=In silico analysis kn-keyword=In silico analysis en-keyword=Subgingival contour kn-keyword=Subgingival contour END start-ver=1.4 cd-journal=joma no-vol= cd-vols= no-issue= article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=1998 dt-pub=19980325 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=ƒqƒg™ù‹Ø‚É‚¨‚¯‚éŒðŠ´_ŒoŒnŒŒ—¬’²ß‹@\‚ÉŠÖ‚·‚錤‹† en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=‘O쌫Ž¡ kn-aut-sei=‘Oì kn-aut-mei=Œ«Ž¡ aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=‰ªŽR‘åŠw END