start-ver=1.4 cd-journal=joma no-vol=14 cd-vols= no-issue=1 article-no= start-page=20756 end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2024 dt-pub=20240905 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Basic characteristics of tongue pressure and electromyography generated by articulation of a syllable using the posterior part of the tongue en-subtitle= kn-subtitle= en-abstract= kn-abstract=The basic function of the tongue in pronouncing diadochokinesis and other syllables is not fully understood. This study investigates the influence of sound pressure levels and syllables on tongue pressure and muscle activity in 19 healthy adults (mean age: 28.2 years; range: 22-33 years). Tongue pressure and activity of the posterior tongue were measured using electromyography (EMG) when the velar stops /ka/, /ko/, /ga/, and /go/ were pronounced at 70, 60, 50, and 40 dB. Spearman's rank correlation revealed a significant, yet weak, positive association between tongue pressure and EMG activity (rho = 0.14, p < 0.05). Mixed-effects model analysis showed that tongue pressure and EMG activity significantly increased at 70 dB compared to other sound pressure levels. While syllables did not significantly affect tongue pressure, the syllable /ko/ significantly increased EMG activity (coefficient = 0.048, p = 0.013). Although no significant differences in tongue pressure were observed for the velar stops /ka/, /ko/, /ga/, and /go/, it is suggested that articulation is achieved by altering the activity of both extrinsic and intrinsic tongue muscles. These findings highlight the importance of considering both tongue pressure and muscle activity when examining the physiological factors contributing to sound pressure levels during speech. en-copyright= kn-copyright= en-aut-name=MandaYousuke en-aut-sei=Manda en-aut-mei=Yousuke kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=KodamaNaoki en-aut-sei=Kodama en-aut-mei=Naoki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=MoriKeitaro en-aut-sei=Mori en-aut-mei=Keitaro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=AdachiReimi en-aut-sei=Adachi en-aut-mei=Reimi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=MatsugishiMakoto en-aut-sei=Matsugishi en-aut-mei=Makoto kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=MinagiShogo en-aut-sei=Minagi en-aut-mei=Shogo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= affil-num=1 en-affil=Department of Occlusal and Oral Functional Rehabilitation, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University kn-affil= affil-num=2 en-affil=Department of Occlusal and Oral Functional Rehabilitation, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University kn-affil= affil-num=3 en-affil=Department of Occlusal and Oral Functional Rehabilitation, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University kn-affil= affil-num=4 en-affil=Department of Occlusal and Oral Functional Rehabilitation, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University kn-affil= affil-num=5 en-affil=Department of Occlusal and Oral Functional Rehabilitation, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University kn-affil= affil-num=6 en-affil=Department of Occlusal and Oral Functional Rehabilitation, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University kn-affil= END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=7 article-no= start-page=e060040 end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2022 dt-pub=20220714 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Efficacy of soft palatal augmentation prosthesis for oral functional rehabilitation in patients with dysarthria and dysphagia: a protocol for a randomised controlled trial en-subtitle= kn-subtitle= en-abstract= kn-abstract=Introduction Palatal augmentation prosthesis (PAP) is used in patients with articulation and swallowing disorders caused by postoperative loss of tongue tissue due to tongue cancer, cerebrovascular disease sequelae and age-related hypofunction. We have previously reported a newly designed soft PAP fabricated using an thermoplastic material that is particularly appropriate for early intervention. However, the effect of soft PAP on oral function improvement remains to be elucidated. The aim of this study is to investigate whether soft PAP can improve dysarthria and dysphagia occurring as cerebrovascular disease sequelae. Methods and analysis This prospective, randomised, controlled trial will compare the immediate and training effects of rehabilitation using soft PAP with those of rehabilitation without using it. Primary outcomes are the single-word intelligibility test score and pharyngeal transit time (PTT). Secondary outcomes are tongue function (evaluated based on maximum tongue pressure, repetitions of tongue pressure and endurance of tongue pressure), articulation function (evaluated based on speech intelligibility, oral diadochokinesis, Voice-Related Quality of Life (V-RQOL)) and swallowing function (evaluated using Eating Assessment Tool-10). The study results will help determine the efficacy of Soft PAP in improving functional outcomes of word intelligibility and PTT. We hypothesised that early rehabilitation using Soft PAP would more effectively improve articulation and swallowing function compared with conventional rehabilitation without using soft PAP. Ethics and dissemination Ethical approval was obtained from the Okayama University Certified Review Board. The study findings will be published in an open access, peer-reviewed journal and presented at relevant conferences and research meetings. en-copyright= kn-copyright= en-aut-name=YokoyamaTomonori en-aut-sei=Yokoyama en-aut-mei=Tomonori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=MukaiTakao en-aut-sei=Mukai en-aut-mei=Takao kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=KodamaNaoki en-aut-sei=Kodama en-aut-mei=Naoki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=TakaoKana en-aut-sei=Takao en-aut-mei=Kana kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=HiraokaTakashi en-aut-sei=Hiraoka en-aut-mei=Takashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=AraiNobuyuki en-aut-sei=Arai en-aut-mei=Nobuyuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=YanoJitsuro en-aut-sei=Yano en-aut-mei=Jitsuro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=NagatsukaHiroaki en-aut-sei=Nagatsuka en-aut-mei=Hiroaki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= en-aut-name=MandaYousuke en-aut-sei=Manda en-aut-mei=Yousuke kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=9 ORCID= en-aut-name=HanayamaKozo en-aut-sei=Hanayama en-aut-mei=Kozo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=10 ORCID= en-aut-name=MinagiShogo en-aut-sei=Minagi en-aut-mei=Shogo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=11 ORCID= affil-num=1 en-affil=Department of Occlusal & Oral Functional Rehabilitation, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences kn-affil= affil-num=2 en-affil=Division of Oral Surgery, Kawasaki Medical School Hospital kn-affil= affil-num=3 en-affil=Department of Occlusal & Oral Functional Rehabilitation, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences kn-affil= affil-num=4 en-affil=Division of Oral Surgery, Kawasaki Medical School Hospital kn-affil= affil-num=5 en-affil=Department of Rehabilitation Medicine, Kawasaki Medical School kn-affil= affil-num=6 en-affil=Department of Rehabilitation Medicine, Kawasaki Medical School kn-affil= affil-num=7 en-affil=Department of Speech-Language Pathology and Audiology, Faculty of Rehabilitation, Kawasaki University of Medical Welfare kn-affil= affil-num=8 en-affil=Department of Occlusal & Oral Functional Rehabilitation, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences kn-affil= affil-num=9 en-affil=Department of Occlusal & Oral Functional Rehabilitation, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences kn-affil= affil-num=10 en-affil=Department of Rehabilitation Medicine, Kawasaki Medical School kn-affil= affil-num=11 en-affil=Department of Occlusal & Oral Functional Rehabilitation, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences kn-affil= en-keyword=oral medicine kn-keyword=oral medicine en-keyword=rehabilitation medicine kn-keyword=rehabilitation medicine en-keyword=geriatric medicine kn-keyword=geriatric medicine END start-ver=1.4 cd-journal=joma no-vol=133 cd-vols= no-issue=3 article-no= start-page=181 end-page=183 dt-received= dt-revised= dt-accepted= dt-pub-year=2021 dt-pub=20211201 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=AI in dentistry and clues for starting AI research kn-title=歯学領域におけるAIとAI研究開始時の障壁 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=KodamaNaoki en-aut-sei=Kodama en-aut-mei=Naoki kn-aut-name=兒玉直紀 kn-aut-sei=兒玉 kn-aut-mei=直紀 aut-affil-num=1 ORCID= en-aut-name=SugimotoHikaru en-aut-sei=Sugimoto en-aut-mei=Hikaru kn-aut-name=杉本皓 kn-aut-sei=杉本 kn-aut-mei=皓 aut-affil-num=2 ORCID= en-aut-name=MinagiShogo en-aut-sei=Minagi en-aut-mei=Shogo kn-aut-name=皆木省吾 kn-aut-sei=皆木 kn-aut-mei=省吾 aut-affil-num=3 ORCID= affil-num=1 en-affil=Department of Prosthodontics, Division of Dentistry, Okayama University Hospital kn-affil=岡山大学病院　歯科（補綴歯科部門） affil-num=2 en-affil=Department of Occlusal and Oral Functional Rehabilitation, Okayama University Graduate School of Medicine， Dentistry and Pharmaceutical Sciences kn-affil=岡山大学学術研究院医歯薬学域　咬合・有床義歯補綴学 affil-num=3 en-affil=Department of Occlusal and Oral Functional Rehabilitation, Okayama University Graduate School of Medicine， Dentistry and Pharmaceutical Sciences kn-affil=岡山大学学術研究院医歯薬学域　咬合・有床義歯補綴学 en-keyword=人工知能 kn-keyword=人工知能 en-keyword=歯科 kn-keyword=歯科 en-keyword=咀嚼 kn-keyword=咀嚼 END start-ver=1.4 cd-journal=joma no-vol=28 cd-vols= no-issue=1 article-no= start-page=37 end-page=42 dt-received= dt-revised= dt-accepted= dt-pub-year=2009 dt-pub=200906 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Achievements and Next Themes of Dental Section of Perioperative Management Center in Okayama University Hospital at 5 Months after Establishment kn-title=岡山大学病院周術期管理センター(歯科部門)設立後5ヵ月間の活動内容および今後の展開 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=YamanakaReiko en-aut-sei=Yamanaka en-aut-mei=Reiko kn-aut-name=山中玲子 kn-aut-sei=山中 kn-aut-mei=玲子 aut-affil-num=1 ORCID= en-aut-name=SogaYoshihiko en-aut-sei=Soga en-aut-mei=Yoshihiko kn-aut-name=曽我賢彦 kn-aut-sei=曽我 kn-aut-mei=賢彦 aut-affil-num=2 ORCID= en-aut-name=NawachiKumiko en-aut-sei=Nawachi en-aut-mei=Kumiko kn-aut-name=縄稚久美子 kn-aut-sei=縄稚 kn-aut-mei=久美子 aut-affil-num=3 ORCID= en-aut-name=YanagiYoshinobu en-aut-sei=Yanagi en-aut-mei=Yoshinobu kn-aut-name=柳文修 kn-aut-sei=柳 kn-aut-mei=文修 aut-affil-num=4 ORCID= en-aut-name=KodamaNaoki en-aut-sei=Kodama en-aut-mei=Naoki kn-aut-name=兒玉直紀 kn-aut-sei=兒玉 kn-aut-mei=直紀 aut-affil-num=5 ORCID= en-aut-name=NakataTakashi en-aut-sei=Nakata en-aut-mei=Takashi kn-aut-name=中田貴 kn-aut-sei=中田 kn-aut-mei=貴 aut-affil-num=6 ORCID= en-aut-name=MiuraRumi en-aut-sei=Miura en-aut-mei=Rumi kn-aut-name=三浦留美 kn-aut-sei=三浦 kn-aut-mei=留美 aut-affil-num=7 ORCID= en-aut-name=HagawaMisao en-aut-sei=Hagawa en-aut-mei=Misao kn-aut-name=羽川操 kn-aut-sei=羽川 kn-aut-mei=操 aut-affil-num=8 ORCID= en-aut-name=TakeuchiTetsuo en-aut-sei=Takeuchi en-aut-mei=Tetsuo kn-aut-name=竹内哲男 kn-aut-sei=竹内 kn-aut-mei=哲男 aut-affil-num=9 ORCID= en-aut-name=YamaneMieko en-aut-sei=Yamane en-aut-mei=Mieko kn-aut-name=山根美榮子 kn-aut-sei=山根 kn-aut-mei=美榮子 aut-affil-num=10 ORCID= en-aut-name=MoritaManabu en-aut-sei=Morita en-aut-mei=Manabu kn-aut-name=森田学 kn-aut-sei=森田 kn-aut-mei=学 aut-affil-num=11 ORCID= en-aut-name=TakashibaShogo en-aut-sei=Takashiba en-aut-mei=Shogo kn-aut-name=高柴正悟 kn-aut-sei=高柴 kn-aut-mei=正悟 aut-affil-num=12 ORCID= en-aut-name=AsamiJun-ichi en-aut-sei=Asami en-aut-mei=Jun-ichi kn-aut-name=浅海淳一 kn-aut-sei=浅海 kn-aut-mei=淳一 aut-affil-num=13 ORCID= en-aut-name=MinagiShogo en-aut-sei=Minagi en-aut-mei=Shogo kn-aut-name=皆木省吾 kn-aut-sei=皆木 kn-aut-mei=省吾 aut-affil-num=14 ORCID= en-aut-name=YoshiyamaMasahiro en-aut-sei=Yoshiyama en-aut-mei=Masahiro kn-aut-name=吉山昌宏 kn-aut-sei=吉山 kn-aut-mei=昌宏 aut-affil-num=15 ORCID= en-aut-name=ShimonoTsutomu en-aut-sei=Shimono en-aut-mei=Tsutomu kn-aut-name=下野勉 kn-aut-sei=下野 kn-aut-mei=勉 aut-affil-num=16 ORCID= en-aut-name=KubokiTakuo en-aut-sei=Kuboki en-aut-mei=Takuo kn-aut-name=窪木拓男 kn-aut-sei=窪木 kn-aut-mei=拓男 aut-affil-num=17 ORCID= en-aut-name=SasakiAkira en-aut-sei=Sasaki en-aut-mei=Akira kn-aut-name=佐々木朗 kn-aut-sei=佐々木 kn-aut-mei=朗 aut-affil-num=18 ORCID= en-aut-name=MoritaKiyoshi en-aut-sei=Morita en-aut-mei=Kiyoshi kn-aut-name=森田潔 kn-aut-sei=森田 kn-aut-mei=潔 aut-affil-num=19 ORCID= affil-num=1 en-affil= kn-affil=岡山大学病院周術期管理センター(歯科部門) affil-num=2 en-affil= kn-affil=岡山大学病院周術期管理センター(歯科部門) affil-num=3 en-affil= kn-affil=岡山大学病院周術期管理センター(歯科部門) affil-num=4 en-affil= kn-affil=岡山大学病院周術期管理センター(歯科部門) affil-num=5 en-affil= kn-affil=岡山大学病院周術期管理センター(歯科部門) affil-num=6 en-affil= kn-affil=岡山大学病院周術期管理センター(歯科部門) affil-num=7 en-affil= kn-affil=岡山大学病院周術期管理センター(歯科部門) affil-num=8 en-affil= kn-affil=岡山大学病院医療技術部歯科衛生士室 affil-num=9 en-affil= kn-affil=岡山大学病院医療技術部歯科技工室 affil-num=10 en-affil= kn-affil=岡山大学病院周術期管理センター(歯科部門) affil-num=11 en-affil= kn-affil=岡山大学大学院医歯薬学総合研究科予防歯科学分野 affil-num=12 en-affil= kn-affil=岡山大学大学院医歯薬学総合研究科歯周病態学分野 affil-num=13 en-affil= kn-affil=岡山大学大学院医歯薬学総合研究科歯科放射線学分野 affil-num=14 en-affil= kn-affil=岡山大学大学院医歯薬学総合研究科咬合・有床義歯補綴学分野 affil-num=15 en-affil= kn-affil=岡山大学大学院医歯薬学総合研究科歯科保存修復学分野 affil-num=16 en-affil= kn-affil=岡山大学病院医療技術部歯科衛生士室 affil-num=17 en-affil= kn-affil=岡山大学大学院医歯薬学総合研究科インプラント再生補綴学分野 affil-num=18 en-affil= kn-affil=岡山大学病院副病院長 affil-num=19 en-affil= kn-affil=岡山大学病院病院長 END start-ver=1.4 cd-journal=joma no-vol=203 cd-vols= no-issue=1 article-no= start-page=157 end-page=162 dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=20120115 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Mechanomyographic activity in the human lateral pterygoid muscle during mandibular movement en-subtitle= kn-subtitle= en-abstract= kn-abstract=The activity of the lateral pterygoid muscle has been regarded to be related to the pathological condition of the temporomandibular joint (TMJ) in the craniomandibular disorders. Because the lateral pterygoid muscle is a deep muscle, a needle electrode is necessary for EMG recordings. The purpose of this study was to establish a non-invasive method for the evaluation of muscle activity of the lateral pterygoid muscle using mechanomyogram (MMG). In three male subjects, surface electromyogram (EMG) in the left masseter muscle, left anterior and posterior belly of the temporal muscle, left anterior belly of the digastric muscle and needle EMG of the inferior head of the lateral pterygoid were recorded during mandibular movement tasks simultaneously with the MMG derived from a condenser microphone in the external ear canal. There were significant positive correlations between the needle EMG signal of the lateral pterygoid muscle and the MMG signal for the tasks of static jaw opened position of 30 mm of interincisal distance (p = 0.000, R(2)=0.725), static jaw opened position of 40 mm of interincisal distance (p = 0.000, R(2) = 0.753), 5 mm protruded mandibular position (p = 0.000, R(2) = 0.653), the most protruded mandibular position (p = 0.000, R(2) = 0803). On the contrary, for the task of maximal clenching, there was no significant correlation between the EMG signal of the lateral pterygoid muscle and the MMG signal. These results suggest that the activity of the lateral pterygoid muscle could be evaluated by the MMG signals recorded in the external ear canal, unless jaw closing major muscles show active contraction. en-copyright= kn-copyright= en-aut-name=KawakamiShigehisa en-aut-sei=Kawakami en-aut-mei=Shigehisa kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=KodamaNaoki en-aut-sei=Kodama en-aut-mei=Naoki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=MaedaNaoto en-aut-sei=Maeda en-aut-mei=Naoto kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=SakamotoShunichi en-aut-sei=Sakamoto en-aut-mei=Shunichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=OkiKazuhiro en-aut-sei=Oki en-aut-mei=Kazuhiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=YanagiYoshinobu en-aut-sei=Yanagi en-aut-mei=Yoshinobu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=AsaumiJun-Ichi en-aut-sei=Asaumi en-aut-mei=Jun-Ichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=MaedaTeruta en-aut-sei=Maeda en-aut-mei=Teruta kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= en-aut-name=MinagiShogo en-aut-sei=Minagi en-aut-mei=Shogo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=Okayama Univ, Dept Occlusal & Oral Funct Rehabil affil-num=2 en-affil= kn-affil=Okayama Univ, Dept Occlusal & Oral Funct Rehabil affil-num=3 en-affil= kn-affil=Okayama Univ, Dept Occlusal & Oral Funct Rehabil affil-num=4 en-affil= kn-affil=Okayama Univ, Dept Occlusal & Oral Funct Rehabil affil-num=5 en-affil= kn-affil=Okayama Univ, Dept Occlusal & Oral Funct Rehabil affil-num=6 en-affil= kn-affil=Okayama Univ, Dept Oral & Maxillofacial Radiol affil-num=7 en-affil= kn-affil=Okayama Univ, Dept Oral & Maxillofacial Radiol affil-num=8 en-affil= kn-affil=Osaka Dent Univ, Dept Postgrad Clin Training affil-num=9 en-affil= kn-affil=Osaka Dent Univ, Dept Postgrad Clin Training en-keyword=Mechanomyogram kn-keyword=Mechanomyogram en-keyword=Electromyogram kn-keyword=Electromyogram en-keyword=Lateral pterygoid muscle kn-keyword=Lateral pterygoid muscle en-keyword=Jaw movement kn-keyword=Jaw movement 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=2008 dt-pub=20080325 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=ラット脳スライス標本における最後野ニューロンのプリン受容体を介する興奮性の修飾 kn-title=Purinergic modulation of area postrema neuronal excitability in rat brain slices. en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=KodamaNaoki en-aut-sei=Kodama en-aut-mei=Naoki kn-aut-name=兒玉直紀 kn-aut-sei=兒玉 kn-aut-mei=直紀 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 END