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Factors associated with masticatory performance in community-dwelling older adults A cross-sectional study

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Title: Factors associated with masticatory performance in community-dwelling older adults A cross-sectional study
Authors: Kugimiya, Yoshihiro Browse this author
Watanabe, Yutaka Browse this author →KAKEN DB
Igarashi, Kentaro Browse this author
Hoshino, Daichi Browse this author
Motokawa, Keiko Browse this author
Edahiro, Ayako Browse this author
Ueda, Takayuki Browse this author
Takano, Tomofumi Browse this author
Sakurai, Kaoru Browse this author
Taniguchi, Yu Browse this author
Kitamura, Akihiko Browse this author
Nasu, Ikuo Browse this author
Shinkai, Shoji Browse this author
Hirano, Hirohiko Browse this author
Keywords: Mastication
mixing ability
occlusal force
oral health
shearing ability
tongue pressure
Issue Date: Feb-2020
Publisher: American dental association
Journal Title: Journal of the American dental association
Volume: 151
Issue: 2
Start Page: 118
End Page: 126
Publisher DOI: 10.1016/j.adaj.2019.10.003
PMID: 32000935
Abstract: Background. Decreased masticatory performance leads to deterioration of overall health among older adults. However, maintaining and improving masticatory performance in ways other than maintenance of natural teeth and appropriate prosthodontic treatment remains unclear. If the factors related to the mixing and shearing abilities for masticatory performance are clarified, it may be possible to maintain and improve the masticatory performance of older adults. We aimed to clarify the association among mixing ability, shearing ability, and masticatory performance-related factors. Methods. Of the 707 community-dwelling older adults in Kusatsu Town, Japan, 344 who had been treated for any dental defects were enrolled in this study. Masticatory performance was evaluated on the basis of mixing ability and shearing ability. The number of natural teeth and artificial teeth, occlusal force, tongue pressure, and oral diadochokinesis /ta/ were measured as masticatory performance-related factors. Their relationship with mixing ability, shearing ability, and masticatory performance-related factors was examined by means of Spearman rank correlation coefficient and path analysis. Results. Among masticatory performance-related factors, the number of natural teeth, occlusal force, and tongue pressure were directly associated with both mixing ability and shearing ability. Moreover, mixing ability was also directly associated with shearing ability. Conclusions. Tongue pressure, which can be improved by means of training, is a masticatory performance-related factor associated with both mixing and shearing abilities.
Rights: © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 渡邊 裕

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