Details of the Researcher

PHOTO

Takamasa Komiyama
Section
Graduate School of Dentistry
Job title
Assistant Professor
Degree

  • 博士（歯学）（東北大学）

Research History 4

  • 2023/04 - Present
    King's College London　Visiting Lecturer

  • 2019/04 - Present
    Tohoku University Graduate School of Dentistry　Aging and Geriatric Dentistry　Assistant professor

  • 2021/08 - 2021/09
    The Nippon Dental University

  • 2017/04 - 2019/03
    Tohoku University Hospital　Prosthetic Dentistry and Oral Rehabilitation Science　Assistant professor

Professional Memberships 4

  • 日本摂食・嚥下リハビリテーション学会

  • JAPAN EPIDEMIOLOGICAL ASSOCIATION

  • JAPANESE SOCIETY OF GERODONTOLOGY

  • JAPAN PROSTHODONTIC SOCIETY

Research Interests 3

  • Epidemiology

  • Prosthodontics

  • Geriatric Dentistry

Research Areas 3

  • Life sciences / Healthcare management, medical sociology /

  • Life sciences / Community dentistry /

  • Life sciences / Prosthodontics /

Awards 7

  1. 公益社団法人日本補綴歯科学会 第 132回学術大会 課題口演賞

    2023/05　20 歯未満高齢者の死亡発生に対する口腔の形態と機能回復の効果：17 年間のコホート研究

  2. 日本補綴歯科学会第130回学術大会 デンツプライシロナ賞；優秀ポスター賞

    2021/06　日本補綴歯科学会　地域高齢者における口腔保健指標と転倒による骨折発生との関連

  3. 東北大学歯学会研究奨励賞

    2019/06　東北大学歯学会

  4. 日本老年学会総会合同ポスター賞

    2019/06　日本老年学会

  5. 公益社団法人日本補綴歯科学会 第 128 回学術大会 優秀ポスター賞(デンツプライ賞)

    2019/05　地域高齢者の低栄養が咬合力低下と死亡発生の関連を媒介する効果 ： 鶴ケ谷プロジェクト

  6. 平成30年度公益社団法人日本補綴歯科学会奨励論文賞

    2019/05　日本補綴歯科学会

  7. 第123回学術大会課題口演賞

    2014/05　日本補綴歯科学会

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Papers 31

  1. Effects of dental prostheses and occlusal force on adverse health outcomes in community-dwelling older adults lacking functional dentition: The Longitudinal Study of the Tsurugaya Project. International-journal Peer-reviewed

    Daizo Seki, Takamasa Komiyama, Takashi Ohi, Yoshitada Miyoshi, Mana Kogure, Naoki Nakaya, Atsushi Hozawa, Yoshinori Hattori

    The journal of nutrition, health & aging　29　(6)　100534-100534　2025/03/22

    DOI： 10.1016/j.jnha.2025.100534 　

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    OBJECTIVE: In this study, we aimed to examine the longitudinal association between combination of remaining natural teeth (RNT) and functional teeth (FT) or occlusal force (OF), with functional disability and mortality among community-dwelling Japanese adults aged ≥70 years with less than 20 remaining teeth. METHODS: The participants included 916 community-dwelling Japanese adults aged 70 years or older in 2003. Exposures were defined as a combination of RNT and either FT or OF. Outcomes included the incidence of functional disability, determined by the first certification under Japan's long-term care insurance system based on physical and cognitive status, and mortality. The participants were followed up until June 2020. Covariates included age; sex; education; comorbidity; smoking; drinking; physical and cognitive status; and depressive symptoms. Cox proportional hazard models were applied to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for functional disability and death. RESULTS: We observed a higher incidence of death among participants with <20 RNT and fewer FT (<28) than those with functional dentition (HR: 1.62; 95% CI: 1.19-2.21). The HR for death increased as the oral health category based on RNT and FT worsened (p for trend = 0.003). We observed a higher incidence of functional disability (HR: 1.25; 95% CI: 1.02-1.53) and death (HR: 1.30; 95% CI: 1.01-1.68) among those participants with <20 RNT and reduced OF (<200 N) than those with ≥20 RNT. The HR for functional disability (p for trend = 0.029) and death (p for trend = 0.042) increased as the category based on RNT and OF worsened. CONCLUSION: This prospective cohort study demonstrated that a combination of <20 RNT and fewer FT was associated with a higher mortality, whereas a combination of <20 RNT and reduced OF was associated with higher incidence of functional disability and death. Dental prostheses and maintaining OF might play an important role in preserving functionality and promoting survival among older adults with less than 20 remaining teeth.

  2. Bidirectional longitudinal associations between subjective oral health and subjective well-being. International-journal Peer-reviewed

    Taro Kusama, Takamasa Komiyama, Kenji Takeuchi, Wael Sabbah, Ken Osaka, Jennifer E Gallagher

    Archives of gerontology and geriatrics　131　105740-105740　2024/12/31

    DOI： 10.1016/j.archger.2024.105740 　

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    OBJECTIVE: This study investigated the bidirectional longitudinal association between subjective oral health (SOH) and subjective well-being (SWB) over time. METHODS: This cohort study was based on a four-wave surveys conducted by the English Longitudinal Study of Aging. SOH was measured by oral impacts on daily performance (OIDP), self-rated oral health (SROH), and SWB was measured by the Center for Epidemiologic Studies-Depression (CES-D) scale, Control, Autonomy, Self-Realization, and Pleasure (CASP-19), and satisfaction with life scale (SWLS). To evaluate the bidirectional associations between SOH and SWB, separate models were created using SOH and SWB as the outcome and exposure, respectively. Additionally, the synchronous and lagged effects of exposure on outcomes were checked by employing exposures measured at different time points. A generalized estimating equation model was fitted, including the exposure variables, outcome variables in the previous wave, and baseline covariates. RESULTS: Among 4,510 participants (mean age=61.7 years [1SD=7.9], men=43.1 %), 8.1 %, 18.2 %, 14.3 %, 30.5 %, and 25.0 % had poor SOH and SWB as measured by OIDP, SROH, CES-D, CASP-19, and SWLS at baseline, respectively. The results of the regression models with all combinations of SOH and SWB measures showed that poor conditions of SOH or SWB were significantly associated with poor conditions of the other measures (all p < 0.05). In almost all combinations of SOH and SWB measures, the synchronous effect was stronger than the lagged effect. CONCLUSION: SOH and SWB are closely linked, and comprehensive care that considers oral health could contribute to well-being later in life.

  3. Number of teeth and functional disability in community-dwelling older adults. International-journal Peer-reviewed

    Takamasa Komiyama, Takashi Ohi, Yoshitada Miyoshi, Mana Kogure, Naoki Nakaya, Atsushi Hozawa, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    Gerodontology　2024/07/10

    DOI： 10.1111/ger.12775 　

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    INTRODUCTION: This study determined whether tooth loss was associated with the development of functional disability and estimated the population attributable fraction (PAF) of functional disability due to tooth loss, along with risk factors for functional disability such as physical function and cognitive impairment. METHODS: The participants were 838 community-dwelling older adults aged ≥70 years living in the Tsurugaya district in Japan in 2003. The exposure variable was the number of remaining teeth (counted by trained dentists). Other variables were age, sex, depressive symptoms, cognitive impairment, educational attainment, physical function and social support. The Cox proportional hazards model was applied to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) of the incidence of functional disability for each risk factor, such as tooth loss. The functional disability PAF due to tooth loss was estimated, and risk factors for functional disability were identified. RESULTS: In total, 619 (73.9%) participants developed functional disability during follow-up. A multivariable model showed that those with <20 teeth (HR, 1.28; 95% CI, 1.08-1.53) were more likely to develop functional disability than those with 20 teeth or more. PAF estimation for functional disability was shown to have decreasing values in the following order: age, female sex, tooth loss and reduced physical function. CONCLUSIONS: Tooth loss was associated with the development of functional disability in community-dwelling older Japanese adults. While retaining teeth may be a potential strategy for avoiding functional disability, clinical studies on the effect of dental treatment on preventing functional disability are warranted.

  4. Relationship Between Tooth Loss and Progression of Frailty: Findings from the English Longitudinal Study of Aging Peer-reviewed

    Takamasa Komiyama, Jennifer E. Gallagher, Yoshinori Hattori

    Archives of Gerontology and Geriatrics　105572-105572　2024/07

    Publisher: Elsevier BV

    DOI： 10.1016/j.archger.2024.105572 　

    ISSN： 0167-4943

  5. Association between oral health and nutritional status among older patients requiring long-term care who received home-visit dental care. Peer-reviewed

    Yutaka Fukuyama, Takamasa Komiyama, Takashi Ohi, Yoshinori Hattori

    Journal of oral science　66　(2)　130-133　2024/04/16

    DOI： 10.2334/josnusd.23-0344 　

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    PURPOSE: This study examined the association between oral health and nutritional status among older patients receiving home-visit dental care. METHODS: This study enrolled 110 older patients (age ≥65 years) requiring long-term care who received home-visit dental care. The oral health indicators evaluated included number of teeth, occlusal support, number of functional teeth, tongue pressure, tongue coating index (TCI), and rinsing ability. Nutritional indicators included skeletal muscle mass index (SMI) and the mini-nutritional assessment short-form (MNA-SF). A multivariate modified Poisson regression analysis (adjusted for age, sex, medical history, care level, and housing type) was used to calculate prevalence ratios and 95% confidence intervals (CIs). RESULTS: The prevalence ratio for low SMI was not significantly higher for patients with ≥20 teeth than for those with 1-19 or no teeth. Number of teeth was not significantly associated with MNA-SF score. A high TCI score (2.15, 95% CI: 1.07-4.32) and poor rinsing ability (2.32, 95% CI: 1.25-4.30) were significantly associated with low SMI. High TCI scores were associated with low scores in MNA-SF categories (1.25, 95% CI: 1.01-1.55). CONCLUSION: TCI and rinsing ability, rather than number of teeth, were associated with nutritional status in older patients requiring long-term care.

  6. Associations of Dental Health With the Progression of Hippocampal Atrophy in Community-Dwelling Individuals: The Ohasama Study

    Satoshi Yamaguchi, Takahisa Murakami, Michihiro Satoh, Takamasa Komiyama, Takashi Ohi, Yoshitada Miyoshi, Kosei Endo, Takako Hiratsuka, Azusa Hara, Yukako Tatsumi, Tomoko Totsune, Kei Asayama, Masahiro Kikuya, Kyoko Nomura, Atsushi Hozawa, Hirohito Metoki, Yutaka Imai, Makoto Watanabe, Takayoshi Ohkubo, Yoshinori Hattori

    Neurology　10.1212/WNL.0000000000207579-10.1212/WNL.0000000000207579　2023/07/05

    Publisher: Ovid Technologies (Wolters Kluwer Health)

    DOI： 10.1212/wnl.0000000000207579 　

    ISSN： 0028-3878

    eISSN： 1526-632X

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    Background and Objectives Although tooth loss and periodontitis have been considered risk factors for Alzheimer's disease, recent longitudinal researches have not found a significant association with hippocampal atrophy. Therefore, this study aimed to clarify a longitudinal association between the number of teeth present (NTP) and hippocampal atrophy dependent on the severity of periodontitis in a late middle-aged and older adult population. Methods This study included community-dwelling individuals aged ≥55 years who had no cognitive decline and had undergone brain magnetic resonance imaging (MRI) and oral and systemic data collection twice at 4-year intervals. Hippocampal volumes were obtained from MRIs by automated region-of-interest analysis. The mean periodontal probing depth (mean PD) was used as a measure of periodontitis. Multiple regression analysis was performed with the annual symmetric percentage change (SPC) of the hippocampal volume as the dependent variable and including an interaction term between NTP and mean PD as the independent variable. The interaction details were examined using the Johnson–Neyman technique and simple slope analysis. The three-way interaction of NTP, mean PD, and time on hippocampal volume was analyzed using a linear mixed-effects model, and the interaction of NTP and time was examined in subgroups divided by the median mean PD. In all models, dropout bias was adjusted by inverse probability weighting. Results The data of 172 participants were analyzed. The qualitative interaction between NTP and mean PD was significant for the annual SPC in the left hippocampus. The regression coefficient of the NTP on annual SPC in the left hippocampus was significantly positive (B=0.038,P=.026) at the low-level mean PD (mean-1SD) and significantly negative (B=-0.054,P=.001) at the high-level mean PD (mean+1SD). Similar results were obtained in the linear mixed-effects model; the interaction of NTP and time was significant in the higher mean PD group. Discussion In a late middle-aged and older cohort, fewer teeth were associated with a faster rate of left hippocampal atrophy in patients with mild periodontitis, whereas having more teeth was associated with a faster rate of atrophy in those with severe periodontitis. The importance of keeping teeth healthy is suggested.

  7. 現在歯数と歯周炎の交互作用が海馬形態と認知機能に与える影響 大迫研究における縦断MRI解析

    山口 哲史, 村上 任尚, 小宮山 貴将, 大井 孝, 三好 慶忠, 山田 唱, 関 大蔵, 大久保 孝義, 服部 佳功

    日本老年歯科医学会総会・学術大会プログラム・抄録集　34回　[GP4-3]　2023/06

    Publisher: (一社)日本老年歯科医学会

  8. 東北大学病院嚥下治療センターにおける嚥下障害と口腔機能低下の関連性の検討

    白石 成, 互野 亮, 小宮山 貴将, 泉田 一賢, 西條 佳奈, 小川 徹, 小山 重人, 佐々木 啓一

    日本補綴歯科学会誌　15　(特別号)　292-292　2023/05

    Publisher: (公社)日本補綴歯科学会

    ISSN： 1883-4426

    eISSN： 1883-6860

  9. Relationship between maximum occlusal force and gastrointestinal cancer in community-dwelling older Japanese adults International-journal Peer-reviewed

    Takamasa Komiyama, Takashi Ohi, Wakana Ito, Yoshitada Miyoshi, Takako Hiratsuka, Sanae Matsuyama, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    Scientific Reports　12　(1)　440-440　2022/12

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41598-021-04158-y 　

    eISSN： 2045-2322

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    <title>Abstract</title>Globally, the cancer burden is expected to increase as populations are ageing. Therefore, cancer prevention among older age groups is important. This prospective cohort study examined the relationship between the number of remaining teeth, maximum occlusal force, and incidence of gastrointestinal cancer in community-dwelling older Japanese individuals using data from the Tsurugaya project; 847 participants were included. The exposure variables were the number of remaining teeth and the maximum occlusal force, with the outcome being the incidence of gastrointestinal cancer. Covariates were age, sex, medical history, smoking, alcohol consumption, educational attainment, and physical function. The Cox proportional hazard model was used to examine the relationship between the number of remaining teeth, maximum occlusal force, and incidence of gastrointestinal cancer. With a median follow-up of 7.6 years, 63 participants were confirmed to have gastrointestinal cancer. The risk of gastrointestinal cancer was significantly higher in those with an occlusal force lower than the median (hazard ratio, 2.80; 95% confidence interval, 1.54–5.10). No significant risk difference was found according to the number of remaining teeth. Low maximum occlusal force was associated with the incidence of gastrointestinal cancer in community-dwelling older Japanese adults.

  10. 舌がん患者の外科的治療術前・後における舌圧と口腔機能との関連

    互野 亮, 小山 重人, 白石 成, 泉田 一賢, 小宮山 貴将, 佐藤 奈央子, 小川 徹, 佐々木 啓一

    日本補綴歯科学会誌　14　(特別号)　284-284　2022/07

    Publisher: (公社)日本補綴歯科学会

    ISSN： 1883-4426

    eISSN： 1883-6860

  11. 舌がん患者の外科的治療術前・後における舌圧と口腔機能との関連

    互野 亮, 小山 重人, 白石 成, 泉田 一賢, 小宮山 貴将, 佐藤 奈央子, 小川 徹, 佐々木 啓一

    日本補綴歯科学会誌　14　(特別号)　284-284　2022/07

    Publisher: (公社)日本補綴歯科学会

    ISSN： 1883-4426

    eISSN： 1883-6860

  12. 現在歯数と歯周炎の交互作用が脳形態変化に与える影響 大迫研究における縦断MRI解析

    山口 哲史, 小宮山 貴将, 大井 孝, 村上 任尚, 佐藤 倫広, 沼崎 貴子, 三好 慶忠, 遠藤 耕生, 山田 唱, 目時 弘仁, 大久保 孝義, 服部 佳功

    日本補綴歯科学会誌　14　(特別号)　256-256　2022/07

    Publisher: (公社)日本補綴歯科学会

    ISSN： 1883-4426

    eISSN： 1883-6860

  13. Regular dental visits, periodontitis, tooth loss, and atherosclerosis: The Ohasama study International-journal Peer-reviewed

    Sho Yamada, Takamasa Komiyama, Takashi Ohi, Takahisa Murakami, Yoshitada Miyoshi, Kosei Endo, Takako Hiratsuka, Azusa Hara, Michihiro Satoh, Yukako Tatsumi, Ryusuke Inoue, Kei Asayama, Masahiro Kikuya, Atsushi Hozawa, Hirohito Metoki, Yutaka Imai, Takayoshi Ohkubo, Yoshinori Hattori

    Journal of Periodontal Research　57　(3)　615-622　2022/06

    Publisher: Wiley

    DOI： 10.1111/jre.12990 　

    ISSN： 0022-3484

    eISSN： 1600-0765

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    OBJECTIVE: We aimed to explore the association between regular dental visits and atherosclerosis and between periodontitis, number of remaining teeth, and atherosclerosis among community dwellers in Japan. BACKGROUND: Few studies have examined the association between regular dental visits, periodontitis, tooth loss, and atherosclerosis in community dwellers in Japan. METHODS: The participants of this cross-sectional study included community dwellers aged ≥55 years and residing in Ohasama. Exposure variables were regular dental visits; periodontitis, defined as radiographic alveolar bone loss (BL); the Centers for Disease Control/American Academy of Periodontology (CDC/AAP) classification; and number of remaining teeth. The primary outcome was atherosclerosis, defined as maximum carotid intima-media thickness ≥1.1 mm or confirmation of atheromatous plaque. RESULTS: Of 602 participants, 117 had atherosclerosis. In the multivariate model, compared to those with regular dental visits, the odds ratio (OR) (95% confidence intervals [CIs]) of atherosclerosis among those with the absence of regular dental visits was 2.16 (1.03-4.49). Regarding BL-max, compared with those in the first quartile, ORs (95% CIs) of those in the second, third, and fourth quartiles were 1.15 (0.65-2.30), 0.65 (0.32-1.35), and 1.57 (0.81-3.01), respectively. Regarding CDC/AAP classification, compared to those with no or mild periodontitis, ORs (95% CIs) for those with moderate and severe periodontitis were 2.48 (0.61-10.1) and 4.26 (1.01-17.5), respectively. Regarding the number of remaining teeth, compared to those with ≥20 teeth, ORs (95%CIs) for those with 10-19 and 1-9 teeth were 1.77 (1.004-3.12) and 0.96 (0.52-1.80), respectively. CONCLUSION: The absence of regular dental visits and presence of periodontitis are associated with atherosclerosis among community dwellers in Japan.

  14. Oral health‐related quality of life is associated with the prevalence and development of depressive symptoms in older Japanese individuals: The Ohasama Study International-journal Peer-reviewed

    Takashi Ohi, Takahisa Murakami, Takamasa Komiyama, Yoshitada Miyoshi, Kosei Endo, Takako Hiratsuka, Michihiro Satoh, Kei Asayama, Ryusuke Inoue, Masahiro Kikuya, Hirohito Metoki, Atsushi Hozawa, Yutaka Imai, Makoto Watanabe, Takayoshi Ohkubo, Yoshinori Hattori

    Gerodontology　39　(2)　204-212　2022/06

    Publisher: Wiley

    DOI： 10.1111/ger.12557 　

    ISSN： 0734-0664

    eISSN： 1741-2358

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    OBJECTIVE: This prospective study investigated the cross-sectional association between impaired oral health-related quality of life (OHRQoL) and the prevalence of depressive symptoms, and the longitudinal association between impaired OHRQoL and development of depressive symptoms among older adults. BACKGROUND: Previous studies have shown a relationship between poor oral health and depression among older adults; however, findings are inconsistent. MATERIALS AND METHODS: Participants were 669 community-dwelling older Japanese individuals aged≥55 years (mean: 67.8 ± 7.2 years). Data of 296 participants were used for longitudinal analyses. OHRQoL was evaluated using the Oral Impacts on Daily Performances scale. Impaired OHRQoL was defined as the presence of at least one impact on the scale. Depressive symptoms were assessed using the Japanese version of the Zung self-rating depression scale with a cut-off score of 40. RESULTS: The cross-sectional logistic regression model demonstrated that impaired OHRQoL was significantly associated with depressive symptoms (odds ratio [OR], 5.17; 95% confidence interval [CI], 2.99-8.95) independent of age, sex, body mass index, hypertension, cerebrovascular/cardiovascular disease, smoking, drinking alcohol, education, cognitive function, objective oral health (dentition status) and oral health behaviour (dental visit within 1 year). Similarly, impaired OHRQoL predicted the development of depressive symptoms within 4 years in a fully adjusted longitudinal model (OR, 6.00; 95% CI, 1.38-26.09). CONCLUSION: Impaired OHRQoL was identified as a potential comorbidity of depressive symptoms and a predictor for depressive disorder later in life. OHRQoL may be a useful clinical outcome for elder patients with regard to their mental and oral health.

  15. 地域一般住民における歯科定期受診とアテローム性動脈硬化との関連 大迫研究

    山田 唱, 小宮山 貴将, 大井 孝, 村上 任尚, 平塚 貴子, 三好 慶忠, 遠藤 耕生, 大久保 孝義, 服部 佳功

    日本老年歯科医学会総会・学術大会プログラム・抄録集　32回　O3-6　2021/06

    Publisher: (一社)日本老年歯科医学会

  16. Relationship Between Oral Health and Fractures in Community-Dwelling Older Japanese Adults Peer-reviewed

    Ito, W., Komiyama, T., Ohi, T., Hiratsuka, T., Matsuyama, S., Sone, T., Tsuji, I., Watanabe, M., Hattori, Y.

    Journal of the American Medical Directors Association　22　(6)　1184-1189.e1　2021/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.jamda.2021.01.058 　

    ISSN： 1538-9375 1525-8610

  17. Verification of the criteria for reduced occlusal force to diagnose oral hypofunction in older Japanese people: A prospective cohort study on incident functional disability International-journal Peer-reviewed

    Takamasa Komiyama, Takashi Ohi, Yoshitada Miyoshi, Yasutake Tomata, Shu Zhang, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    Journal of Oral Rehabilitation　47　(8)　989-997　2020/08/01

    DOI： 10.1111/joor.13021 　

    ISSN： 0305-182X

    eISSN： 1365-2842

  18. Cognitive impairment and depressive symptoms lead to biases in self-evaluated masticatory performance among community-dwelling older Japanese adults: the Tsurugaya Project International-journal Peer-reviewed

    Takamasa Komiyama, Takashi Ohi, Takako Hiratsuka, Yoshitada Miyoshi, Yasutake Tomata, Shu Zhang, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    Journal of Dentistry　99　103403-103403　2020/08

    DOI： 10.1016/j.jdent.2020.103403 　

    ISSN： 0300-5712

  19. The association between bilateral maximum occlusal force and all-cause mortality among community-dwelling older adults: The Tsurugaya project Peer-reviewed

    Takashi Ohi, Takamasa Komiyama, Yoshitada Miyoshi, Takahisa Murakami, Akito Tsuboi, Yasutake Tomata, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    Journal of Prosthodontic Research　64　(3)　289-295　2020/07

    DOI： 10.1016/j.jpor.2019.08.005 　

    ISSN： 1883-1958

  20. Contribution of systemic inflammation and nutritional status to the relationship between tooth loss and mortality in a community-dwelling older Japanese population: a mediation analysis of data from the Tsurugaya project International-journal Peer-reviewed

    Takako Hiratsuka, Takamasa Komiyama, Takashi Ohi, Fumiya Tanji, Yasutake Tomata, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    Clinical Oral Investigations　24　(6)　2071-2077　2020/06/01

    DOI： 10.1007/s00784-019-03072-y 　

    ISSN： 1432-6981

    eISSN： 1436-3771

  21. 重度歯周病罹患歯の保有数と血圧との関連 大迫研究

    村上 任尚, 佐藤 倫広, 小宮山 貴将, 大井 孝, 遠藤 耕生, 平塚 貴子, 浅山 敬, 菊谷 昌浩, 井上 隆輔, 坪田 恵, 目時 弘仁, 寳澤 篤, 今井 潤, 服部 佳功, 大久保 孝義

    日本衛生学雑誌　75　(Suppl.)　S161-S161　2020/03

    Publisher: (一社)日本衛生学会

    ISSN： 0021-5082

    eISSN： 1882-6482

  22. The association between number of remaining teeth and maintenance of successful aging in Japanese older people: A 9-year longitudinal study Peer-reviewed

    Fumiya Tanji, Takamasa Komiyama, Takashi Ohi, Yoshinori Hattori, Makoto Watanabe, Yukai Lu, Ichiro Tsuji

    Tohoku Journal of Experimental Medicine　252　(3)　245-252　2020

    DOI： 10.1620/tjem.252.245 　

    ISSN： 0040-8727

    eISSN： 1349-3329

  23. Dental status is associated with incident functional disability in community-dwelling older Japanese: A prospective cohort study using propensity score matching Peer-reviewed

    Takamasa Komiyama, Takashi Ohi, Yasutake Tomata, Fumiya Tanji, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    Journal of Epidemiology　30　(2)　84-90　2020

    DOI： 10.2188/jea.JE20180203 　

    ISSN： 0917-5040

    eISSN： 1349-9092

  24. Relationship between status of dentition and incident functional disability in an elderly Japanese population: prospective cohort study of the Tsurugaya project Peer-reviewed

    Takamasa Komiyama, Takashi Ohi, Yoshitada Miyoshi, Takahisa Murakami, Akito Tsuboi, Yasutake Tomata, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    Journal of Prosthodontic Research　62　(4)　443-448　2018/10

    DOI： 10.1016/j.jpor.2018.04.003 　

    ISSN： 1883-1958

  25. Association between tooth loss and cognitive impairment in community-dwelling older Japanese adults: A 4-year prospective cohort study from the Ohasama study International-journal Peer-reviewed

    Sho Saito, Takashi Ohi, Takahisa Murakami, Takamasa Komiyama, Yoshitada Miyoshi, Kosei Endo, Michihiro Satoh, Kei Asayama, Ryusuke Inoue, Masahiro Kikuya, Hirohito Metoki, Yutaka Imai, Takayoshi Ohkubo, Yoshinori Hattori

    BMC Oral Health　18　(1)　142-142　2018/08/20

    DOI： 10.1186/s12903-018-0602-7 　

    eISSN： 1472-6831

  26. Maximum Occlusal force and incident functional disability in older adults: The Tsurugaya project Peer-reviewed

    T. Ohi, T. Komiyama, Y. Miyoshi, T. Murakami, A. Tsuboi, Y. Tomata, I. Tsuji, M. Watanabe, Y. Hattori

    JDR Clinical and Translational Research　3　(2)　195-202　2018/04

    DOI： 10.1177/2380084418761329 　

    ISSN： 2380-0844

    eISSN： 2380-0852

  27. Association Between Tooth Loss, Receipt of Dental Care, and Functional Disability in an Elderly Japanese Population: The Tsurugaya Project International-journal Peer-reviewed

    Takamasa Komiyama, Takashi Ohi, Yoshitada Miyoshi, Takahisa Murakami, Akito Tsuboi, Yasutake Tomata, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    Journal of the American Geriatrics Society　64　(12)　2495-2502　2016/12/01

    DOI： 10.1111/jgs.14390 　

    ISSN： 0002-8614

    eISSN： 1532-5415

  28. 地域一般住民における歯周病の進行と動脈硬化との関連 大迫研究

    小島 千洋, 村上 任尚, 大井 孝, 三好 慶忠, 小宮山 貴将, 佐藤 倫広, 大久保 孝義, 今井 潤, 服部 佳功

    老年歯科医学　30　(2)　135-136　2015/09

    Publisher: (一社)日本老年歯科医学会

    ISSN： 0914-3866

    eISSN： 1884-7323

  29. 地域一般住民における歯周病と形態的・機能的動脈硬化との関連 大迫研究

    小島 千洋, 村上 任尚, 大井 孝, 三好 慶忠, 小宮山 貴将, 佐藤 倫広, 大久保 孝義, 今井 潤, 服部 佳功

    老年歯科医学　29　(2)　119-120　2014/09

    Publisher: (一社)日本老年歯科医学会

    ISSN： 0914-3866

    eISSN： 1884-7323

  30. 地域高齢者におけるかかりつけ歯科医の有無と要介護認定に関するコホート研究 鶴ヶ谷プロジェクト Peer-reviewed

    小宮山, 貴将, 大井, 孝, 三好, 慶忠, 坪井, 明人, 服部, 佳功, 遠又, 靖丈, 柿崎, 真沙子, 辻, 一郎, 渡邉 誠

    老年歯科医学　28　(4)　337-344　2014/03

    Publisher:

    DOI： 10.11259/jsg.28.337 　

    ISSN： 0914-3866

    eISSN： 1884-7323

  31. Relationship between Regular Dentist and Long-Term Care Insurance Certification in Community-Dwelling Elderly Population：A Cohort Study of the Tsurugaya Project Peer-reviewed

    Takamasa Komiyama

    Japanese Society of Gerodontology　2014

    DOI： 10.11259/jsg.28.337 　

Show all ︎Show first 5

Misc. 17

  1. 大迫コホートにおける高血圧有病と歯周病罹患歯数との関連

    村上 任尚, 佐藤 倫広, 浅山 敬, 菊谷 昌浩, 小宮山 貴将, 遠藤 耕生, 大井 孝, 平塚 貴子, 目時 弘仁, 今井 潤, 服部 佳功, 大久保 孝義

    東北公衆衛生学会誌　(67)　26-26　2018/07

    Publisher: 東北公衆衛生学会

    ISSN： 0915-549X

  2. 大迫コホートにおける高血圧有病と歯周病罹患歯数との関連

    村上 任尚, 佐藤 倫広, 浅山 敬, 菊谷 昌浩, 小宮山 貴将, 遠藤 耕生, 大井 孝, 平塚 貴子, 目時 弘仁, 今井 潤, 服部 佳功, 大久保 孝義

    東北公衆衛生学会誌　(67)　26-26　2018/07

    Publisher: 東北公衆衛生学会

    ISSN： 0915-549X

  3. 地域高齢者における認知機能低下の有無と主観的咀嚼能力の過大申告との関連

    小宮山 貴将, 大井 孝, 平塚 貴子, 坪井 明人, 遠又 靖丈, 丹治 史也, 辻 一郎, 渡邉 誠, 服部 佳功

    日本補綴歯科学会誌　10　(特別号)　167-167　2018/06

    Publisher: (公社)日本補綴歯科学会

    ISSN： 1883-4426

    eISSN： 1883-6860

  4. 残存歯数とサクセスフル・エイジング維持との関連:鶴ヶ谷プロジェクト

    丹治史也, 遠又靖丈, ZHANG Shu, 小宮山貴将, 大井孝, 服部佳功, 渡邉誠, 辻一郎

    日本疫学会学術総会講演集(Web)　28th　80 (WEB ONLY)　2018/02/01

  5. 地域高齢者における認知機能低下の有無と主観的咀嚼能力の過大申告との関連

    小宮山貴将, 大井孝, 大井孝, 平塚貴子, 坪井明人, 遠又靖丈, 丹治史也, 辻一郎, 渡邉誠, 服部佳功

    日本補綴歯科学会誌(Web)　10　167 (WEB ONLY)　2018

    DOI： 10.2186/ajps.10.167 　

    ISSN： 1883-6860

  6. 新たな視点・問題点 認知症高齢者の口腔ケアと訪問歯科診療

    田中恭恵, 小宮山貴将, 服部佳功

    日本臨床　76　310-315　2018/01

  7. 地域高齢者における最大咬合力と要介護認定に関するコホート研究

    大井孝, 大井孝, 小宮山貴将, 三好慶忠, 村上任尚, 遠又靖丈, 辻一郎, 服部佳功

    老年歯科医学　30　(2)　108-109　2015/09/30

    Publisher: (一社)日本老年歯科医学会

    ISSN： 0914-3866

  8. 地域高齢者における最大咬合力と要介護認定に関するコホート研究

    大井 孝, 小宮山 貴将, 三好 慶忠, 村上 任尚, 遠又 靖丈, 辻 一郎, 服部 佳功

    日本老年歯科医学会総会・学術大会プログラム・抄録集　26回　114-114　2015/05

    Publisher: (一社)日本老年歯科医学会

  9. 地域一般住民における歯周病の進行と動脈硬化との関連 大迫研究

    小島 千洋, 村上 任尚, 大井 孝, 三好 慶忠, 小宮山 貴将, 佐藤 倫広, 大久保 孝義, 今井 潤, 服部 佳功

    日本老年歯科医学会総会・学術大会プログラム・抄録集　26回　139-139　2015/05

    Publisher: (一社)日本老年歯科医学会

  10. 地域一般住民における歯周病の進行と動脈硬化との関連 大迫研究

    小島 千洋, 村上 任尚, 大井 孝, 三好 慶忠, 小宮山 貴将, 佐藤 倫広, 大久保 孝義, 今井 潤, 服部 佳功

    日本老年歯科医学会総会・学術大会プログラム・抄録集　26回　139-139　2015/05

    Publisher: (一社)日本老年歯科医学会

  11. 地域一般住民における歯周病と形態的・機能的動脈硬化との関連 大迫研究

    小島 千洋, 村上 任尚, 大井 孝, 三好 慶忠, 小宮山 貴将, 佐藤 倫広, 大久保 孝義, 今井 潤, 服部 佳功

    日本老年歯科医学会総会・学術大会プログラム・抄録集　25回　121-121　2014/06

    Publisher: (一社)日本老年歯科医学会

  12. 地域高齢者における咬合三角分類と要介護発生に関するコホート研究

    小宮山貴将, 大井孝, 三好慶忠, 村上任尚, 遠又靖丈, 柿崎真沙子, 服部佳功, 坪井明人, 辻一郎, 渡邉誠

    日本補綴歯科学会学術大会プログラム・抄録集　123rd　109　2014/04/01

    ISSN： 1883-4426

  13. 地域高齢者における歯の保有,かかりつけ歯科医の有無と要介護発生との関連―鶴ケ谷プロジェクト―

    小宮山貴将, 大井孝, 三好慶忠, 坪井明人, 服部佳功, 遠又靖丈, 柿崎真沙子, 辻一郎, 渡邉誠

    J Epidemiol　24　(Supplement 1)　62　2014/01/23

    ISSN： 0917-5040

  14. 地域高齢者におけるかかりつけ歯科医の不在と要介護認定に関するコホート研究―鶴ケ谷プロジェクト―

    小宮山貴将, 大井孝, 三好慶忠, 坪井明人, 服部佳功, 辻一郎, 渡邉誠

    老年歯科医学　28　(2)　96　2013/09/30

    ISSN： 0914-3866

  15. 地域高齢者における、かかりつけ歯科医の不在と要介護認定に関するコホート研究 鶴ヶ谷プロジェクト

    小宮山 貴将, 大井 孝, 三好 慶忠, 坪井 明人, 服部 佳功, 辻 一郎, 渡邉 誠

    日本老年歯科医学会総会・学術大会プログラム・抄録集　24回　97-97　2013/06

    Publisher: (一社)日本老年歯科医学会

  16. 地域高齢者における口腔関連QOLと栄養状態との関連の年齢階層による相違

    大井孝, 三好慶忠, 村上任尚, 小宮山貴将, 服部佳功, 坪井明人, 今井潤, 渡邉誠

    老年歯科医学　27　(2)　186-187　2012/09/30

    Publisher: (一社)日本老年歯科医学会

    ISSN： 0914-3866

  17. 地域高齢者における口腔関連QOLと栄養状態との関連の年齢階層による相違

    大井 孝, 三好 慶忠, 村上 任尚, 小宮山 貴将, 服部 佳功, 坪井 明人, 今井 潤, 渡邉 誠

    日本老年歯科医学会総会・学術大会プログラム・抄録集　23回　124-124　2012/06

    Publisher: (一社)日本老年歯科医学会

Show all ︎Show first 5

Presentations 41

  1. Comparison of undergraduate education in geriatric dentistry between the UK, Europe, and Japan

    Takamasa Komiyama, Rakhee Patel, Ellie Heidari, Richard Foxton, Jennifer E. Gallagher

    28th EADPH Conference　2024/10/04

  2. Relationship Between Oral Health and Progression of Frailty

    Takamasa Komiyama, Jennifer E. Gallagher, Yoshinori Hattori

    CED/NOF-IADR 2024 ORAL HEALTH RESEARCH CONGRESS　2024/09/12

  3. 急性期高齢者肺炎患者の転帰と歯科介入に関する後ろ向き調査

    大井 孝, 菊地 真友, 服部 佳功, 山口 哲史, 田中 恭恵, 猪狩 洋平, 小宮山 貴将, 伊藤 佳彦, 小林 誠一, 矢内 勝

    日本老年歯科医学会第35回学術大会　2024/06/29

  4. 20歯未満の地域高齢者における咬合力および機能歯数の介護予防に対する効果：鶴ケ谷プロジェクト

    関 大蔵, 小宮山 貴将, 大井 孝, 三好 慶忠, 服部 佳功

    日本老年歯科医学会第35回学術大会　2024/06/29

  5. 現在歯数と歯周炎の交互作用が海馬形態と認知機能に与える影響―大迫研究における縦断 MRI 解析―

    山口哲史, 村上任尚, 小宮山貴将, 大井 孝, 三好慶忠, 山田 唱, 関 大蔵, 大久保孝義, 服部佳功

    第33回日本老年学会総会　2023/06/16

  6. 東北大学病院嚥下治療センターにおける嚥下障害と口腔機能低下の関連性の検討

    白石 成, 互野 亮, 小宮山貴将, 泉田一賢, 西條佳奈, 小川 徹, 小山重人, 佐々木啓一

    日本補綴歯科学会 第132回学術大会

  7. 20 歯未満高齢者の死亡発生に対する口腔の形態と機能回復の効果：17 年間のコホート研究

    関 大蔵, 小宮山貴将, 大井 孝, 三好慶忠, 渡邉 誠, 服部佳功

    公益社団法人日本補綴歯科学会 第132回学術大会　2023/05/20

  8. 要介護高齢者における口腔と栄養との関連 を歯科訪問診療の現場より探る

    福山 完, 小宮山貴将, 服部佳功

    第75回東北地区歯科医学会　2022/11/13

  9. 舌がん患者の外科的治療術前・後における舌圧と口腔機能との関連

    互野 亮, 小山重人, 白石 成, 泉田一賢, 小宮山貴将, 佐藤奈央子, 小川 徹, 佐々木啓一

    日本補綴歯科学会 第131回学術大会　2022/07/17

  10. 現在歯数と歯周炎の交互作用が脳形態変化に与える影響 大迫研究における縦断 MRI 解析

    山口哲史, 小宮山貴将, 大井 孝, 村上任尚, 佐藤倫広, 沼崎貴子, 三好慶忠, 遠藤耕生, 山田 唱, 目時弘仁, 大久保孝義, 服部佳功

    日本補綴歯科学会 第131回学術大会　2022/07/17

  11. 在宅療養者の口腔状態はキーパーソンの介護負担感に関連するのか： 混合研究法を用いた検討

    岸 さやか, 小宮山 貴将, 岡橋 美奈子, 阿部 吏芳, 板橋 志保, 遠藤 千恵, 成田 憲司, 小菅 玲, 服部 佳功

    日本老年歯科学会第33回学術大会　2022/06/11

  12. 歯科訪問診療患者における低栄養と関連する口腔保健指標の検討

    福山 完, 小宮山 貴将, 服部 佳功

    日本老年歯科学会第33回学術大会　2022/06/11

  13. Achieving healthy aging through oral health management: an epidemiological study

    Takamasa Komiyama, Yoshinori Hattori

    International Oral Health Symposium 2022　2022/06/08

  14. 地域高齢者における最大咬合力と消化器がんとの関連：鶴ケ谷プロジェクト

    小宮山貴将, 大井 孝, 伊藤和花菜, 三好慶忠, 平塚貴子, 松山紗奈江, 辻 一郎, 渡邉 誠, 服部佳功

    第32回日本疫学会学術総会　2022/01/27

  15. 地域高齢者における口腔保健指標と転倒による骨折発生との関連

    伊藤和花菜, 小宮山貴将, 大井孝, 平塚貴子, 渡邉誠, 服部佳功

    日本補綴歯科学会第130回学術大会　2021/06/19

  16. 地域一般住民における歯科定期受診とアテローム性動脈硬化との関連 - 大迫研究 -

    山田 唱, 小宮山貴将, 大井 孝, 村上任尚, 平塚貴子, 三好慶忠, 遠藤耕生, 大久保孝義, 服部佳功

    日本老年歯科学会第32回学術大会　2021/06/13

  17. 地域高齢者における現在歯数および最大咬合力と要介護認定との関連

    伊藤 和花菜, 小宮山 貴将, 大井 孝, 平塚 貴子, 山田 唱, 服部 佳功

    日本老年歯科医学会第31回学術大会　2020/11/07

  18. Geriatric dentistry contributes not only oral health but systemic health: From the results of our prospective cohort study in Japan. Invited

    Takamasa Komiyama

    Tohoku – Taiwan- YangMing Dental Symposium　2019/12/13

  19. 重度歯周病罹患歯の保有数と血圧との関連－大迫研究－

    村上任尚, 佐藤倫広, 小宮山貴将, 大井孝, 遠藤耕生, 平塚貴子, 浅山敬, 菊谷昌浩, 井上隆輔, 坪田恵, 目時弘仁, 寶澤篤, 今井潤, 服部佳功, 大久保孝義.

    第31回血圧管理研究会　2019/11/30

  20. 地域在住有歯顎高齢者の低咬合力と要介護発生リスク－残存歯数の層別化に基づく検討－

    山田唱, 小宮山貴将, 大井孝, 平塚貴子, 服部佳功

    第63回日本顎口腔機能学会　2019/10/26

  21. Deviation of subjective and objective masticatory ability in older adults International-presentation

    Takamasa Komiyama, Takashi Ohi, Takako Hiratsuka, Yasutake Tomata, Shu Zhang, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    The 97th General Session of the IADR　2019/06

  22. 超高齢社会における高齢者歯科の在り方を考える Invited

    小宮山 貴将

    第75回東北大学歯学会　2019/06

  23. 20歯未満の地域高齢者における介護予防と関連する口腔保健指標の検討

    小宮山 貴将, 大井 孝, 三好 慶忠, 平塚 貴子, 渡邉 誠, 服部 佳功

    日本老年歯科医学会第30回学術大会　2019/06

  24. 地域高齢者の低栄養が咬合力低下と死亡発生の関連を媒 介する効果：鶴ケ谷プロジェクト

    平塚貴子, 小宮山貴将, 大井 孝, 渡邉 誠, 服部佳功

    日本補綴歯科学会第128回学術大会　2019/05

  25. 口腔機能検査の基準値を考える Invited

    小宮山 貴将

    日本補綴歯科学会第128回学術大会 イブニングセッション　2019/05

  26. Nutrition contributes to the relationship between tooth loss and mortality International-presentation

    Takako Hiratsuka, Takamasa Komiyama, Takashi Ohi, Akito Tsuboi, Fumiya Tanji, Yasutake Tomata, Ichiro Tsuji, Makoto Watanabe, Yoshinori Hattori

    2018/07

  27. 地域高齢者における認知機能低下の有無と主観的咀嚼能力の過大申告との関連

    小宮山貴将, 大井孝, 平塚貴子, 坪井明人, 遠又靖丈, 丹治史也, 辻一郎, 渡邉誠, 服部佳功

    日本補綴歯科学会第127回学術大会　2018/06/16

  28. 地域高齢者の最大咬合力と死亡リスクに関する長期コホート研究：鶴ヶ谷プロジェクト

    大井 孝, 小宮山貴将, 坪井明人, 遠又靖丈, 辻 一郎, 服部佳功

    日本老年歯科医学会第29回学術大会　2018/06

  29. Association of Tooth Loss with Incident Functional Disability in an Elderly Japanese Population: A Propensity Score-Matched Cohort Study International-presentation

    KOMIYAMA Takamasa

    8th ICFSR　2018/03

  30. 残存歯数とサクセスフル・エイジング維持との関連:鶴ヶ谷プロジェクト

    丹治史也, 遠又靖丈, ZHANG Shu, 小宮山貴将, 大井孝, 服部佳功, 渡邉誠, 辻一郎

    第28回日本疫学会学術総会　2018/02

  31. 歯数と家庭血圧日間変動との関連 －大迫研究－

    平塚貴子, 村上任尚, 佐藤倫広, 小宮山貴将, 齋藤翔, 大井孝, 遠藤耕生, 浅山敬, 菊谷昌浩, 井上隆輔, 坪田恵, 村上慶子, 目時弘仁, 今井潤, 服部佳功, 大久保孝義

    第29回血圧管理研究会　2017/10

  32. 地域高齢者における現在歯数と死亡リスクに関する13年間の前向きコホート研究：鶴ケ谷プロジェクト

    平塚貴子, 小宮山貴将, 大井孝, 坪井明人, 遠又靖丈, 辻一郎, 渡邉誠, 服部佳功

    平成29年度日本補綴歯科学会東北・北海道支部学術大会　2017/10

  33. 地域一般住民における歯周病の進行と動脈硬化との関連：大迫研究．

    小宮山 貴将, 小島千洋, 村上任尚, 大井 孝, 三好慶忠, 小宮山貴将, 佐藤倫広, 大久保孝義, 今井 潤, 服部佳功

    日本老年歯科医学会第26回学術大会　2015/06

  34. 地域高齢者における最大咬合力と要介護認定に関するコホート研究

    大井 孝, 小宮山貴将, 村上任尚, 遠又靖丈, 辻 一郎, 服部佳功

    日本老年歯科医学会第26回学術大会　2015/06

  35. Tooth Loss, Dental Utilization and Incident functional disability International-presentation

    93thGeneral Session and Exhibition of the IADR　2015/03

  36. 地域一般住民における歯周病と形態的・機能的動脈硬化との関連：大迫研究

    小島千洋, 村上任尚, 大井 孝, 三好慶忠, 小宮山貴将, 佐藤倫広, 大久保孝義, 今井 潤, 服部佳功

    日本老年歯科医学会第25回学術大会　2014/06

  37. 地域高齢者における咬合三角分類と要介護発生に関するコホート研究

    小宮山貴将, 大井孝, 三好慶忠, 村上任尚, 遠又靖丈, 柿崎真沙子, 服部佳功, 坪井明人, 辻一郎, 渡邉誠

    日本補綴歯科学会第123回学術大会　2014/06

  38. 地域高齢者における歯の保有，かかりつけ歯科医の有無と要介護発生との関連－鶴ヶ谷プロジェクト－

    小宮山貴将, 大井 孝, 三好慶忠, 坪井明人, 服部佳功, 遠又靖丈, 柿崎真沙子, 辻 一郎, 渡邉 誠

    第24回日本疫学会学術総会　2014/02

  39. 地域高齢者における、かかりつけ歯科医の不在と要介護認定に関するコホート研究―鶴ヶ谷プロジェクト―

    小宮山貴将, 大井 孝, 三好慶忠, 村上任尚, 坪井明人, 今井 潤, 渡邉 誠, 服部佳功

    日本老年歯科医学会第24回学術大会　2013/06

  40. 地域高齢者における口腔関連QOLと栄養状態との関連の年齢階層による相違

    大井 孝, 三好慶忠, 村上任尚, 小宮山貴将, 服部佳功, 坪井明人, 今井 潤, 渡邉 誠

    日本老年歯科医学会第23回学術大会　2012/06

  41. Supporting General Health of Older People Through Oral Health Management: From an Aspect of Inclusion Invited

    Takamasa Komiyama

    21st Yonsei Dental International Symposium　2022/12/16

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Research Projects 7

  1. Predictability of removable prosthodontic treatment for older patients with dementia: a clinical epidemiological study

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2022/04/01 - 2026/03/31

  2. Elucidation of the bidirectional association of oral function with the development and recovery of frailty

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2022/04/01 - 2026/03/31

  3. Development of preventing frailty targeting to oral and nutritional status

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2023/04 - 2026/03

  4. 認知機能低下を早期に察知する口腔保健指標の同定及びその展開可能性の検討

    小宮山 貴将

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 若手研究

    Category: 若手研究

    Institution: 東北大学

    2019/04/01 - 2022/03/31

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    認知症有病率の上昇を抑えることは本邦のみならず、世界的な課題である。口腔保健指標が認知症発症や認知機能低下と関連することは様々な研究から示されており、認知症予防の中で歯科に期待される役割も大きい。一方、些細な認知機能低下を把握することは、認知症の重症化予防に寄与すると考えられるが、そのためには高齢期のみならず高齢期以前を対象としたコホートが必要である。本邦を代表する循環器コホートである大迫研究は、まさにこれらの年代をターゲットとしたものであり、派生的に今後の認知症対策に貢献しうる。これら対象集団の特性を活かして、網羅的に口腔保健指標を採取することで、歯科的および他分野と連携しながら、認知症対策に有効な提言が可能となるようなエビデンスを構築することを目指す。 しかしながら、COVID-19流行のため、計6回の開催が予定された2021年度の歯科検診についても、感染流行のため全て中止となり、サンプルサイズの蓄積を行うことができなかった。 歯科検診は、現在歯数などの口腔内診査に加えて、口腔関連QOLや口腔清掃状態、義歯の使用などに関する聞き取り調査、口腔湿潤度検査、舌苔に付着した細菌数、グミを用いた咀嚼能力検査、舌圧計を用いた舌圧測定、デンタルプレスケールを用いた咬合圧検査を予定し、準備を整えていた。引き続きサンプルサイズの拡充に努めると共に、既存のデータベースを用いた解析作業についても並行して実施している。

  5. A cohort study of relationship between oral health and frailty

    Komiyama Takamasa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Research Activity start-up

    Category: Grant-in-Aid for Research Activity start-up

    Institution: Tohoku University

    2017/08/25 - 2019/03/31

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    I examined the relationship between oral health and frailty targeting community-dwelling adults who living Ohasama town, Iwate prefecture. As a results, the participants with less than 20 teeth was associated with underweight than participants with more than 20 teeth (p < 0.05). The maximum occlusal force and decrease in chewing efficiency was not significant, but tended to related to underweight. There was a significant association between the less than 20 teeth and cognitive impairment (p <0.05). The present study suggested that oral health is associated with indicator of frailty, and suggested the significance for maintenance and improvement of oral function to prevent frailty.

  6. A cohort study of the association of occlusion and mastication with mental health in elderly population.

    OHI TAKASHI, KOMIYAMA Takamasa, SAITO Sho

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2015/04/01 - 2018/03/31

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    We investigated the association between tooth loss and the development of cognitive impairment in older adults aged 65 years or older living in the town of Ohasama, Iwate Prefecture, Japan. As the results, the participants with 0-9 teeth were more likely to develop cognitive impairment than those with 10 teeth or more were (odds ratio: 3.3; 95% confidence interval: 1.07-10.2). Further, we also investigated the association between the oral health-related quality of life (OHRQoL) and the development of depressive symptoms in Ohasama residents aged 55 years or older. Compared to the participants without restricted OHRQoL, the adjusted odds ratio for development of depressive symptoms was significantly higher in those with restricted OHRQoL (odds ratio: 5.15; 95% confidence interval: 3.00-8.95). These findings suggested the possibility that maintenance of oral health contributed to healthy mental condition in elderly people.

  7. 地域高齢者における 口腔状態 と転倒関連骨折発生との関連

    Offer Organization: 公益財団法人 富徳会

    System: 2020年度研究者助成（予防歯科学部門）

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