MDPIActa Medica Okayama2227-90321362025Effects of Trehalose on Halitosis: A Randomized Cross-Over Clinical Trial619ENHisatakaMiyaiDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityTakaakiTomofujiDepartment of Community Oral Health, School of Dentistry, Asahi UniversityHirofumiMizunoDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityManabuMoritaDepartment of Oral Health Sciences, Faculty of Health Care Sciences, Takarazuka University of Medical and Health CareMomokoNakaharaDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalKotaKataokaDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalIchiroSumitaDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalYurikaUchidaDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalNaokiToyamaDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityAyaYokoiDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityReikoYamanaka-KohnoDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalNorikoTakeuchiDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalTakayukiMaruyamaDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityDaisukeEkuniDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityBackground/Objectives: Halitosis is a condition characterized by an unpleasant malodor. Intra-oral halitosis is caused by volatile sulfur compounds (VSCs) and can be associated with oral dryness. Trehalose is one of the materials used to relieve oral dryness. The aim of the present study was to investigate the effect of trehalose on halitosis. Methods: This prospective, double-blinded, placebo-controlled, cross-over study enrolled volunteers from Okayama University Hospital. The participants were randomly divided into two groups, with one group receiving trehalose (a 10% trehalose solution) and the other receiving a placebo (distilled water) in a 1:1 allocation. The primary study outcome was the subjective organoleptic test. The secondary outcomes were the concentrations of the VSCs, which were measured using a portable gas chromatography device, and the oral moisture status, which was measured using an oral moisture meter. The planned sample size was 10 participants based on the previous study. Results: The final intention-to-treat analysis was performed using the data from 9 participants. After applying 10% trehalose as an oral spray, the organoleptic score decreased in a time-dependent manner. However, no significant differences were seen between the trehalose and placebo groups. In terms of secondary outcomes, the oral moisture levels increased immediately after the trehalose spray application, and significant differences in the amount of change from the baseline were seen between the trehalose and placebo groups (p = 0.047). No significant differences were seen in any of the other variables (p > 0.05). Conclusions: We could not identify any positive effects on halitosis from a one-time 10% trehalose application as an oral spray in this prospective, double-blinded, placebo-controlled, cross-over study. However, the trehalose application immediately improved the oral moisture levels and was useful for treating oral dryness.No potential conflict of interest relevant to this article was reported.MDPIActa Medica Okayama2072-664316242024Association Between Change in Prognostic Nutritional Index During Neoadjuvant Therapy and Dental Occlusal Support in Patients with Esophageal Cancer Under Neoadjuvant Therapy: A Retrospective Longitudinal Pilot Study4383ENReikoYamanaka-KohnoDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalYasuhiroShirakawaDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesMamiInoue-MinakuchiDepartment of Oral Rehabilitation and Regenerative Medicine, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityAyaYokoiDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityKazuhiroNomaDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesShunsukeTanabeDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesNaoakiMaedaDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesToshiyoshiFujiwaraDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesManabuMoritaDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityDaisukeEkuniDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityBackground: A high prognostic nutritional index (PNI) is associated with good prognosis in patients with esophageal cancer. However, nutritional status often decreases during neoadjuvant therapy. Functional tooth units (FTUs) provide an index for the status of posterior occlusal support. We have previously reported that low PNI is related to low FTUs. Objectives: The purpose of this study was to retrospectively examine whether the status of occlusal support relates to changes in PNI during neoadjuvant therapy in patients with esophageal cancer. Methods: This study included 34 patients who underwent neoadjuvant therapy before esophagectomy (32 men, 2 women; age, 36-82 years) in 2012 at Okayama University Hospital. Patients were divided into the good occlusal support group (FTUs >= 11, n = 18) or poor occlusal support group (FTUs < 11, n = 16), and changes in PNI during neoadjuvant therapy were investigated. Results: PNI decreased significantly after neoadjuvant therapy, particularly in the good occlusal support group, and became more dispersed after neoadjuvant therapy. Decreases in PNI after neoadjuvant therapy showed a significant positive correlation with good occlusal support by multiple regression analysis (p = 0.03). The proportions of patients provided with nutritional intervention (p = 0.02) or early dental intervention (p = 0.04) were lower in the good occlusal support group than in the poor occlusal support group. Conclusions: Even in patients with esophageal cancer with good occlusal support experienced significant declines in PNI during neoadjuvant therapy, potentially due to delayed nutritional and dental interventions. Early multidisciplinary interventions are thus recommended for all patients, regardless of preoperative dental or nutritional status.No potential conflict of interest relevant to this article was reported.Springer Science and Business Media LLCActa Medica Okayama0941-435532122024Relationship among cancer treatment, quality of life, and oral function in head and neck cancer survivors: A cross-sectional study809ENAyaYokoiDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityTakayukiMaruyamaDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityReikoYamanakaDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalNorikoTakeuchiDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalManabuMoritaDepartment of Oral Health Sciences, Takarazuka University of Medical and Health CareDaisukeEkuniDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityPurpose Treatment for head and neck cancer (HNC), such as surgery and chemoradiotherapy, can reduce oral function and affect quality of life (QoL). However, whether HNC treatment affects QoL via the decline of oral function remains unclear. This study aimed to investigate the relationship among cancer treatment, QoL, and actual oral function in HNC survivors.<br>
Methods A total of 100 HNC survivors who had completed definitive treatment for HNC at least 6 months prior to enrollment were enrolled in this cross-sectional study. QoL was evaluated using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 summary score. Oral diadochokinesis (ODK), tongue pressure, moisture level on the mucosal surface, and mouth opening were measured. Information on age, sex, tumor site, tumor stage, history of HNC treatment, height, body weight, and lifestyle were collected from medical records. Structural equation modeling (SEM) was conducted to analyze the indirect/direct associations among HNC treatment, QoL, and oral function.<br>
Results In total, 100 HNC survivors (58 males and 42 females; age range, 30–81 years, median, 67 years) were analyzed. Overall, 63 patients (63.0%) were diagnosed as oral cancer, 66 (66.0%) developed advanced cancer (stage 3/4), and 58 (58.0%) underwent reconstruction surgery in 100 HNC survivors. The SEM results supported the hypothesized structural model (root mean square error of approximation = 0.044, comparative fit index = 0.990, Tucker-Lewis index = 0.986). Surgery with neck dissection and reconstruction for advanced cancer had indirect effects on lower QoL via ODK and mouth opening.<br>
Conclusion HNC treatment is indirectly associated with QoL via oral function in HNC survivors.No potential conflict of interest relevant to this article was reported.Nature PortfolioActa Medica Okayama2045-23221412024Perioperative gum-chewing training prevents a decrease in tongue pressure after esophagectomy in thoracic esophageal cancer patients: a nonrandomized trial23886ENReikoYamanaka-KohnoDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalYasuhiroShirakawaDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical ScienceAyaYokoiDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityNaoakiMaedaDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical ScienceShunsukeTanabeDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical ScienceKazuhiroNomaDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical ScienceKazuyoshiShimizuDepartment of Anesthesiology and Resuscitology, Okayama University HospitalToshiharuMituhashiCenter for Innovative Clinical Medicine, Okayama University HospitalYoshihideNakamuraDepartment of Oral and Maxillofacial Radiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical ScienceSoutoNanbaDental Clinic, Kurashiki Medical Check-Up CenterYurikaUchidaDepartment of Preventive Dentistry, Division of Dentistry, Okayama University HospitalTakayukiMaruyamaDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityManabuMoritaDepartment of Oral Health Sciences, Takarazuka University of Medical and Health CareDaisukeEkuniDepartment of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama UniversityTongue pressure (TP) decreases significantly after esophagectomy in esophageal cancer patients (ECPs). Meanwhile, 2 weeks of gum-chewing training (GCT) significantly increased TP in healthy university students. We examined whether perioperative GCT would decrease the proportion of patients exhibiting a decline in TP at 2 weeks postoperatively, and prevent postoperative complications, in thoracic ECPs (TECPs). This was a single-center interventional study, and nonrandomized study with a historical control group (HCG). TECPs who underwent first-stage radical esophagectomy were recruited. Thirty-two patients of 40 in the gum-chewing group (GCG) were completed perioperative GCT in 3 times daily. Propensity score matching was performed with covariates related to TP including preoperative age, sex, body mass index, and the repetitive saliva swallowing test result, and yielded a matched cohort of 25 case pairs. Eleven GCG patients [44.0%] exhibited significantly lower TP at 2 weeks postoperatively than before esophagectomy was significantly fewer than that of 19 patients [76.0%] in the HCG. The median number of fever days (> 38 degrees C) in the 2 weeks after esophagectomy in the GCG was significantly fewer than those in the HCG. Perioperative GCT may prevent postoperative TP decline and postoperative dysphagia-related complications after esophagectomy.No potential conflict of interest relevant to this article was reported.Springer Science and Business Media LLCActa Medica Okayama2047-05251312024Sensitivity and specificity of the question “do you have any concerns regarding your mouth related to undergoing surgery?” for predicting perioperative oral health problems in patients with primary esophageal and lung cancer: a retrospective observational study36ENAikoYoshitomiDivision of Hospital Dentistry, Okayama University HospitalYoshihikoSogaDivision of Hospital Dentistry, Okayama University HospitalReikoYamanaka-KohnoDivision of Hospital Dentistry, Okayama University HospitalHiroshiMorimatsuPerioperative Management Center, Okayama University HospitalBackground Perioperative oral management contributes to the prevention of dental/systemic complications. However, a professional dental checkup before surgery is generally not performed and relies on the patient’s answer to a simple question by medical professionals other than dentists: “Do you have any concerns regarding your mouth related to undergoing surgery?” Here, we evaluated the sensitivity and specificity of this question for predicting perioperative oral health problems in patients with primary esophageal and primary lung cancer.<br>
Methods We performed an oral cavity check in all patients before scheduled surgery for primary esophageal and lung cancer. A total of 183 patients were enrolled (M, 112; F, 71; 24–88 years, median, 69 years), consisting of 61 with primary esophageal cancer (M, 46; F, 15; 24–85 years, median, 69 years) and 122 with primary lung cancer (M, 66; F; 56; 33–88 years, median, 69 years). All subjects provided a response to this question, and an oral cavity check was performed by dentists. The sensitivity and specificity of this question for detecting oral health problems were evaluated retrospectively.<br>
Results Overall sensitivity and specificity for detecting oral health problems were 0.263 and 0.898, respectively. There were no significant differences by sex or disease (primary esophageal or lung cancer).<br>
Conclusion This simple question has low sensitivity but high specificity for detecting oral health problems. Although challenging to detect surgical patients with oral health problems by simply asking questions, the results indicated that patients with oral complaints are more likely to have problems during surgery.No potential conflict of interest relevant to this article was reported.SpringerActa Medica Okayama1612-90591812020Association of dental occlusal support with the Prognostic Nutritional Index in patients with esophageal cancer who underwent esophagectomy4955ENReikoYamanaka-KohnoDivision of Hospital Dentistry, Central Clinical Department, Okayama University HospitalYasuhiroShirakawaDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesMamiInoue-MinakuchiDepartment of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesAyaYokoiDepartment of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesMisatoMuroDivision of Hospital Dentistry, Central Clinical Department, Okayama University HospitalHirotakaKosakiDivision of Hospital Dentistry, Central Clinical Department, Okayama University HospitalShunsukeTanabeDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesToshiyoshiFujiwaraDepartment of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesManabuMoritaDepartment of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesBackground</br>
The Prognostic Nutritional Index is useful for predicting surgical risk and overall survival based on preoperative immunological and nutritional status in patients undergoing digestive organ cancer surgery. The purpose of this study was to examine the association between the Prognostic Nutritional Index and dental status in patients with esophageal cancer who underwent esophagectomy.</br>
Methods</br>
This retrospective case–control study included 73 patients who underwent resection of esophageal cancer (69 males, 4 females; age 36–83). General and dental status were evaluated. The Prognostic Nutritional Index was calculated based on the serum albumin concentration and the total lymphocyte count, and subjects were divided into two groups based on index scores: a higher group, characterized by scores ≥ 45 (n = 54); and a lower group, characterized by scores < 45 (n = 19). Univariate analysis and multiple logistic regression analyses were used to compare between groups.</br>
Results</br>
Total protein, C-reactive protein, the number of sound and total decayed, missing and filled teeth, and the rate of patients with poor dental occlusal support showed significant differences between the lower and higher Prognostic Nutritional Index groups (p < 0.05). Stepwise logistic regression analysis by backward selection approach showed that low total protein, few sound teeth, and poor status of dental occlusal support were significantly associated with the lower Prognostic Nutritional Index (p = 0.007, 0.042, and 0.009, respectively).</br>
Conclusion</br>
Dental status, especially dental occlusal support and the number of sound teeth, showed a positive relationship with the Prognostic Nutritional Index in esophageal cancer patients who underwent esophagectomy.No potential conflict of interest relevant to this article was reported.Springer SingaporeActa Medica Okayama161290591632019Change in tongue pressure and the related factors after esophagectomy: a short-term, longitudinal study.300308ENAyaYokoiDepartment of Preventive DentistryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesDaisukeEkuniDepartment of Preventive DentistryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesReikoYamanakaDivision of Hospital Dentistry, Central Clinical DepartmentOkayama University HospitalHironobuHataDepartment of Dentistry and Oral SurgeryNational Hospital Organization Hokkaido Cancer CenterYasuhiroShirakawaDepartment of Gastroenterological SurgeryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesManabuMoritaDepartment of Preventive DentistryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesBACKGROUND:</br>
Dysphagia is a prominent symptom after esophagectomy and may cause aspiration pneumonia. Swallowing evaluation after esophagectomy can predict and help control the incidence of postoperative pneumonia. The aim of this study was to clarify whether the change in tongue pressure was associated with any related factor and postoperative dysphagia/pneumonia in patients with esophageal cancer after esophagectomy.</br>
METHODS:</br>
Fifty-nine inpatients (41 males and 18 females; 33-77 years old) who underwent esophagectomy participated in this study. Measurement of tongue pressure and the repetitive saliva swallowing test (RSST) was performed before esophagectomy (baseline) and at 2 weeks postoperatively. The general data were collected from patients' medical records, including sex, age, type of cancer, cancer stage, location of cancer, operative approach, history of previous chemotherapy, surgical duration, amount of bleeding during surgery, incidences of postoperative complications, intubation period, period between surgery and initiation of oral alimentation, and intensive care unit (ICU) stay, blood chemical analysis, and lifestyle.</br>
RESULTS:</br>
Tongue pressure decreased significantly after esophagectomy (p = 0.011). The decrease of tongue pressure was significantly associated with length of ICU stay and preoperative tongue pressure on multiple regression analysis (p < 0.05). The decrease of tongue pressure in the RSST < 3 or postoperative pneumonia (+) group was significantly greater than in the RSST ≥ 3 (p = 0.003) or pneumonia (-) group (p = 0.021).</br>
CONCLUSIONS:</br>
The decrease in tongue pressure was significantly associated with the length of ICU stay, preoperative tongue pressure, and the incidence of dysphagia and pneumonia among inpatient after esophagectomy.No potential conflict of interest relevant to this article was reported.Okayama University Medical SchoolActa Medica Okayama0386-300X7312019Efficacy of Oral Care Provided by Interprofessional Collaboration for a Patient with Esophageal Cancer Associated with Post-polio Syndrome during Neoadjuvant Chemotherapy7176ENKeikoTakahashi-ArimasaDental Hygienist Team, Division of Medical Technology, Okayama University HospitalReikoKohno-YamanakaDivision of Hospital Dentistry, Central Clinical Department, Okayama University HospitalYoshihikoSogaDivision of Hospital Dentistry, Central Clinical Department, Okayama University HospitalRumiMiuraDental Hygienist Team, Division of Medical Technology, Okayama University HospitalManabuMoritaDepartment of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesCase Report10.18926/AMO/56461 Preoperative oral care is helpful to prevent postoperative complications in patients who are undergoing esophagectomy. Here, we report the case of an 81-year-old Japanese man with an upper limb disability caused by post-polio syndrome who was receiving neoadjuvant chemotherapy for esophageal cancer. He had poor oral health status and developed oral complications as a side effect of chemotherapy. He could not brush his teeth by himself. However, infection control by oral care provided by an interprofessional collaboration successfully improved his oral hygiene, and his follow-up involved no severe complications. Interprofessional collaboration is useful especially for patients with upper limb disability.No potential conflict of interest relevant to this article was reported.日本歯科医学教育学会Acta Medica Okayama091451332822012歯科医師臨床研修におけるチーム医療研修プログラム : 研修歯科医の関心および理解に与えた効果の検討7684ENReikoYamanakaHospital Dentistry, Okayama University HospitalYoshihikoSogaHospital Dentistry, Okayama University HospitalAikoYoshitomiHospital Dentistry, Okayama University HospitalHajimeShiraiHospital Dentistry, Okayama University HospitalKojiSuzukiHospital Dentistry, Okayama University HospitalTakayukiKonoHospital Dentistry, Okayama University HospitalYasuhiroToriiHospital Dentistry, Okayama University HospitalManabuMoritaHospital Dentistry, Okayama University Hospital 質が高く、安心・安全な医療を実現していくために、チーム医療の促進は重要な課題であり、チーム医療を担う医療人の育成が必要とされている。岡山大学病院歯科医師臨床研修では、平成23年度から周術期管理センターを研修の場とする「チーム医療研修プログラム」を開始した。本報告では、研修歯科医のプログラムに対する関心とチーム医療に関する理解に与えた効果をアンケート調査によって検討することを目的とした。対象は平成23年度本学病院研修歯科医44名とし、医師、看護師、薬剤師、理学療法士、管理栄養士など多職種によって行われる周術期管理チーム医療を体験させた。受講前には本プログラムに対する期待度を、受講後には満足度、有意義度について質問し、研修歯科医のプログラムに対する関心度を評価した。また、プログラム受講前後に周術期チーム医療に関する用語や職種について質問し、チーム医療に関する理解度を評価した。90.9%の研修歯科医がプログラムに対して期待し、受講後は88.6%が満足だった、84.1%が有意義だったと回答した。さらに、周術期管理に関する用語について主観的理解度が向上し、チーム医療にかかわる職種についての理解が深まった。歯科医師臨床研修におけるチーム医療教育の方法として、周術期管理チーム医療の現場に実際に関与させるプログラムは、研修歯科医の関心が高く、研修歯科医の周術期管理チーム医療に対する理解を深めることが示唆された。No potential conflict of interest relevant to this article was reported.The Japanese Society of Internal MedicineActa Medica Okayama0918-291854142015Detection of Identical Isolates of Enterococcus faecalis from the Blood and Oral Mucosa in a Patient with Infective Endocarditis18091814ENAkemiOkuiYoshihikoSogaSusumuKokeguchiMotokoNoseReikoYamanakaNobuchikaKusanoManabuMoritaThe detection of infective endocarditis (IE) of oral origin has been previously discussed. However, there are few reports confirming this infection using molecular biological techniques. We herein describe the case of a 67-year-old man who developed IE. Blood culture samples and strains obtained from the gingival and buccal mucosa showed 100% identity to Enterococcus faecalis JCM 5803 on sequencing of 16S rRNA gene fragments. A random amplification of polymorphic DNA (RAPD) analysis showed the same pattern for these samples, thus confirming the identity of E. faecalis isolates in the blood and oral mucosa. Our observations provide novel information regarding the level of identity between IE pathogens and oral bacteria.No potential conflict of interest relevant to this article was reported.Okayama University Medical SchoolActa Medica Okayama0386-300X6862014Management of Lacerated and Swollen Tongue after Convulsive Seizure with a Mouth Protector: Interprofessional Collaboration Including Dentists in Intensive Care375378ENReikoYamanakaYoshihikoSogaYoshieMoriyaAkemiOkuiTetsuoTakeuchiKenjiSatoHiroshiMorimatsuManabuMoritaCase Report10.18926/AMO/53027We encountered a 74-year-old male patient with tongue laceration after convulsive seizures under intensive care. The tongue showed severe swelling, and the right ventral surface had been lacerated by his isolated and pointed right lower canine. Our university hospital has established a perioperative management center, and is promoting interprofessional collaboration, including dentists, in perioperative management. Dentists collaborating in the perioperative management center took dental impressions, with the support of anesthesiologists who opened the patientʼs jaw under propofol sedation, to produce a mouth protector. By raising the patientʼs bite, the completed mouth protector prevented the isolated tooth from contacting the tongue and protected the lacerated wound. Use of the mouth protector prevented the lacerated tongue from coming into contact with the pointed tooth, and the tongue healed gradually. These findings underscore that interprofessional collaboration including dentists can improve the quality of medical care.No potential conflict of interest relevant to this article was reported.岡山歯学会Acta Medica Okayama0913-39413222013岡山大学病院歯科系診療科等が医科系診療科等から受けた院内紹介とそれに対する初動対応 ―平成22年度と23年度を対象とした実態調査―5763ENReikoYamanakaEmikoUdakaAikoYoshitomiErikoMatsumotoYoshihikoSogaManabuMoritaNo potential conflict of interest relevant to this article was reported.岡山歯学会Acta Medica Okayama0913-39412812009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3742ENReikoYamanakaYoshihikoSogaKumikoNawachiYoshinobuYanagiNaokiKodamaTakashiNakataRumiMiuraMisaoHagawaTetsuoTakeuchiMiekoYamaneManabuMoritaShogoTakashibaJun-ichiAsamiShogoMinagiMasahiroYoshiyamaTsutomuShimonoTakuoKubokiAkiraSasakiKiyoshiMoritaNo potential conflict of interest relevant to this article was reported.岡山歯学会Acta Medica Okayama0913-39413122012岡山大学病院歯科系診療科等が医科系診療科等から受けた院内紹介とそれに対する初動対応 ― 平成22年度を対象とした実態調査―6771ENYoshihikoSogaEmikoKurashigeReikoYamanakaAikoYoshitomiManabuMoritaNo potential conflict of interest relevant to this article was reported.Acta Medica Okayama1340-79881932012気管挿管における口腔内偶発症防止対策の必要性431432ENNo potential conflict of interest relevant to this article was reported.Acta Medica Okayama2004機械的刺激によるラット歯肉の接合上皮基底細胞と線維芽細胞の細胞周期の変化ENReikoYamanakaNo potential conflict of interest relevant to this article was reported.