Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Influential Factors of Masticatory Performance in Older Adults: A Cross-Sectional Study

Version 1 : Received: 31 March 2021 / Approved: 1 April 2021 / Online: 1 April 2021 (10:25:29 CEST)

A peer-reviewed article of this Preprint also exists.

Kim, H.-E. Influential Factors of Masticatory Performance in Older Adults: A Cross-Sectional Study. Int. J. Environ. Res. Public Health 2021, 18, 4286. Kim, H.-E. Influential Factors of Masticatory Performance in Older Adults: A Cross-Sectional Study. Int. J. Environ. Res. Public Health 2021, 18, 4286.

Journal reference: Int. J. Environ. Res. Public Health 2021, 18, 4286
DOI: 10.3390/ijerph18084286

Abstract

While appropriate nutrient intake is important for older adults, various oral problems cause de-creased masticatory function. This cross-sectional study aimed to identify the factors associated with decreased masticatory performance in older adults. Oral examinations were performed on 80 participants (mean age: 75.10 ± 5.64 years) to determine the number of functional tooth units (FTUs). Symptoms of periodontal and temporomandibular diseases were evaluated via a ques-tionnaire. The tone, elasticity, and dynamic stiffness of the masseter muscle were measured using the Myoton® PRO device. The mixing ability test was used to assess the masticatory performance and the mixing ability index (MAI) was calculated. The analysis of covariance test was performed to adjust for confounding factors and multiple logistic regression analysis was performed to identify the risk factors affecting MAI. A lower MAI was significantly associated with higher tone (p = 0.006) and lower elasticity (p = 0.013). The number of FTUs (adjusted odds ratio [OR] = 0.724, p = 0.029), tone (adjusted OR = 1.215, p = 0.016), and elasticity (adjusted OR = 4.789, p = 0.038) were independently associated with the MAI. Muscle function training and prosthetic treatments may help increase masticatory performance in older adults, which will improve overall health.

Keywords

chewing ability; functional tooth unit; masticatory performance; masseter muscle; mixing ability index

Subject

MEDICINE & PHARMACOLOGY, Allergology

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