TY - JOUR
T1 - Occlusal support predicts tooth loss in older Japanese people
AU - Mihara, Yusuke
AU - Matsuda, Ken ichi
AU - Takahashi, Toshihito
AU - Hatta, Kodai
AU - Fukutake, Motoyoshi
AU - Sato, Hitomi
AU - Gondo, Yasuyuki
AU - Masui, Yukie
AU - Kamide, Kei
AU - Sugimoto, Ken
AU - Kabayama, Mai
AU - Ishizaki, Tatsuro
AU - Arai, Yasumichi
AU - Maeda, Yoshinobu
AU - Ikebe, Kazunori
N1 - Funding Information:
Mihara Y contributed to data acquisition, analysis, and interpretation and drafted the manuscript. Matsuda K and Maeda Y contributed to study design, data acquisition and interpretation, and critical revision of the manuscript. Takahashi T, Hatta K, Fukutake M, Sato H, Sugimoto K, Kabayama M, Ishizaki T, and Arai Y contributed to data acquisition and critically revised the manuscript. Gondo Y, Masui Y and Kamide K contributed to the study conception and design, data acquisition and critical revision of the manuscript. Ikebe K contributed to the study conception and design, data interpretation, and critical revision of the manuscript and gave final approval. All authors gave final approval and agree to be accountable for all aspects of the work. This work was supported by a Grant-in-Aid for Scientific Research (JP15H05025) from the Japan Society for the Promotion of Science. The study protocol was approved by the Institutional Review Board of the Osaka University Graduate School of Dentistry. The authors received no financial support and declare no potential conflicts of interest with respect to the authorship and/or publication of this article.
Funding Information:
Mihara Y contributed to data acquisition, analysis, and interpretation and drafted the manuscript. Matsuda K and Maeda Y contributed to study design, data acquisition and interpretation, and critical revision of the manuscript. Takahashi T, Hatta K, Fukutake M, Sato H, Sugimoto K, Kabayama M, Ishizaki T, and Arai Y contributed to data acquisition and critically revised the manuscript. Gondo Y, Masui Y and Kamide K contributed to the study conception and design, data acquisition and critical revision of the manuscript. Ikebe K contributed to the study conception and design, data interpretation, and critical revision of the manuscript and gave final approval. All authors gave final approval and agree to be accountable for all aspects of the work. This work was supported by a Grant‐in‐Aid for Scientific Research (JP15H05025) from the Japan Society for the Promotion of Science. The study protocol was approved by the Institutional Review Board of the Osaka University Graduate School of Dentistry. The authors received no financial support and declare no potential conflicts of interest with respect to the authorship and/or publication of this article.
Publisher Copyright:
© 2019 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Objectives: Many older people lose their teeth. However, few studies have examined whether the number of remaining teeth or the amount of occlusal support is more important for tooth loss that occurs in older age after adjusting for systemic factors. The purpose of this study was to investigate comprehensively the factors related to tooth loss over a period of 6 years, including occlusal support in 70- and 80-year-old community-dwelling Japanese people. Methods: This cohort study included 296 participants in the 70-year-old group and 232 in the 80-year-old group. The number of teeth of all participants was recorded at baseline and after 6 years, and the participants were divided into two groups according to the number of teeth lost (0 or 4 or more). Occlusal support was classified into three groups based on posterior occlusal support. Mean probing pocket depth, tooth brushing habits, frequency of dental check-ups, education level, economic status and systemic factors (carotid atherosclerosis, hypertension, diabetes mellitus, dyslipidemia, cognitive function and smoking habits) were evaluated. Multiple logistic regression analysis was performed to investigate the relationship of tooth loss with occlusal support and systemic factors. Results: Logistic regression analysis revealed that mean probing pocket depth (odds ratio [OR] = 5.70, 95% confidence interval [CI] = 2.70-12.04, P <.01) and posterior occlusal support (reference = Eichner class A; Eichner B1-3, OR = 4.33, 95% CI = 1.54-12.17, P <.01; Eichner B4 or C, OR = 6.16, 95% CI = 1.17-32.44, P =.03) were associated significantly with the loss of four or more teeth. Conclusions: This study revealed that age itself is not a predictor of multiple tooth loss in community-dwelling older Japanese people. Deep mean probing pocket depth and a lack of posterior occlusal support were significantly associated with the loss of four or more teeth.
AB - Objectives: Many older people lose their teeth. However, few studies have examined whether the number of remaining teeth or the amount of occlusal support is more important for tooth loss that occurs in older age after adjusting for systemic factors. The purpose of this study was to investigate comprehensively the factors related to tooth loss over a period of 6 years, including occlusal support in 70- and 80-year-old community-dwelling Japanese people. Methods: This cohort study included 296 participants in the 70-year-old group and 232 in the 80-year-old group. The number of teeth of all participants was recorded at baseline and after 6 years, and the participants were divided into two groups according to the number of teeth lost (0 or 4 or more). Occlusal support was classified into three groups based on posterior occlusal support. Mean probing pocket depth, tooth brushing habits, frequency of dental check-ups, education level, economic status and systemic factors (carotid atherosclerosis, hypertension, diabetes mellitus, dyslipidemia, cognitive function and smoking habits) were evaluated. Multiple logistic regression analysis was performed to investigate the relationship of tooth loss with occlusal support and systemic factors. Results: Logistic regression analysis revealed that mean probing pocket depth (odds ratio [OR] = 5.70, 95% confidence interval [CI] = 2.70-12.04, P <.01) and posterior occlusal support (reference = Eichner class A; Eichner B1-3, OR = 4.33, 95% CI = 1.54-12.17, P <.01; Eichner B4 or C, OR = 6.16, 95% CI = 1.17-32.44, P =.03) were associated significantly with the loss of four or more teeth. Conclusions: This study revealed that age itself is not a predictor of multiple tooth loss in community-dwelling older Japanese people. Deep mean probing pocket depth and a lack of posterior occlusal support were significantly associated with the loss of four or more teeth.
KW - epidemiology
KW - geriatrics
KW - oral health
KW - prosthodontics
UR - http://www.scopus.com/inward/record.url?scp=85077166604&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85077166604&partnerID=8YFLogxK
U2 - 10.1111/cdoe.12515
DO - 10.1111/cdoe.12515
M3 - Article
C2 - 31876315
AN - SCOPUS:85077166604
VL - 48
SP - 163
EP - 170
JO - Community Dentistry and Oral Epidemiology
JF - Community Dentistry and Oral Epidemiology
SN - 0301-5661
IS - 2
ER -
