Factors associated with age-related changes in oral diadochokinesis and masticatory function in healthy old adults

Abstract Background This cross–sectional study aimed to identify factors associated with age-related changes in masticatory performance (MP) and oral diadochokinesis (ODK) and to provide normal values in healthy old adults for the diagnosis of oral frailty. Methods A total of 385 participants were d...

Full description

Bibliographic Details
Main Authors: Se-Yeon Min, Nan-Sim Pang, Yu-Ri Kim, Sol-Ah Jeong, Bock-Young Jung
Format: Article
Language:English
Published: BMC 2024-04-01
Series:BMC Oral Health
Subjects:
Online Access:https://doi.org/10.1186/s12903-024-04214-9
_version_ 1827276909359136768
author Se-Yeon Min
Nan-Sim Pang
Yu-Ri Kim
Sol-Ah Jeong
Bock-Young Jung
author_facet Se-Yeon Min
Nan-Sim Pang
Yu-Ri Kim
Sol-Ah Jeong
Bock-Young Jung
author_sort Se-Yeon Min
collection DOAJ
description Abstract Background This cross–sectional study aimed to identify factors associated with age-related changes in masticatory performance (MP) and oral diadochokinesis (ODK) and to provide normal values in healthy old adults for the diagnosis of oral frailty. Methods A total of 385 participants were divided into three age groups (Gr1-3): 20–64 years, 65–74 years, and ≥ 75 years. To investigate tongue-lip motor function, ODK was assessed as the number of repetitions of the monosyllables /pa/ta/ka/. Four questionnaires were used to assess subjective masticatory ability, cognitive ability, and psychological status. MP, bite force, and occlusal area were tested to assess dynamic objective masticatory function, and the number of remaining teeth and functional tooth pairs were determined to assess static objective masticatory function. Handgrip strength (HG), oral dryness, and tongue pressure (TP) were assessed to identify influencing factors. Intergroup differences were evaluated by ANOVA and the Kruskal‒Wallis test, and correlations between ODK and orofacial factors were evaluated. Results This study revealed significant age-related declines in TP, HG, and ODK, especially after 65 years of age. Factors affecting MP were posterior teeth, the Eichner index, bite force, occluding area, the Korean Mini-Mental State Examination (KMMSE) score, and ODK. Each ODK syllable was associated with different factors, but common factors associated with ODK were MP, HG, and PHQ-9 score. For the syllables /pa/ta/, the Eichner Index, TP, and oral dryness were also associated. For the syllable /ka/ in Gr3, MP, TP, HG, oral dryness, and the KMMSE score were associated. Conclusions These results could provide practical guidelines for oral rehabilitation in old adults and contribute to improving the understanding of age-related changes in oral function and the multidimensional nature of masticatory dynamics.
first_indexed 2024-04-24T07:10:54Z
format Article
id doaj.art-81c0e94afdfb4d28a23c0acd38ee323f
institution Directory Open Access Journal
issn 1472-6831
language English
last_indexed 2024-04-24T07:10:54Z
publishDate 2024-04-01
publisher BMC
record_format Article
series BMC Oral Health
spelling doaj.art-81c0e94afdfb4d28a23c0acd38ee323f2024-04-21T11:32:30ZengBMCBMC Oral Health1472-68312024-04-0124111210.1186/s12903-024-04214-9Factors associated with age-related changes in oral diadochokinesis and masticatory function in healthy old adultsSe-Yeon Min0Nan-Sim Pang1Yu-Ri Kim2Sol-Ah Jeong3Bock-Young Jung4Department of Dentistry, Graduate School, Yonsei UniversityDepartment of Advanced General Dentistry College of Dentistry, Yonsei UniversityDepartment of Advanced General Dentistry College of Dentistry, Yonsei UniversityDepartment of Advanced General Dentistry College of Dentistry, Yonsei UniversityDepartment of Advanced General Dentistry College of Dentistry, Yonsei UniversityAbstract Background This cross–sectional study aimed to identify factors associated with age-related changes in masticatory performance (MP) and oral diadochokinesis (ODK) and to provide normal values in healthy old adults for the diagnosis of oral frailty. Methods A total of 385 participants were divided into three age groups (Gr1-3): 20–64 years, 65–74 years, and ≥ 75 years. To investigate tongue-lip motor function, ODK was assessed as the number of repetitions of the monosyllables /pa/ta/ka/. Four questionnaires were used to assess subjective masticatory ability, cognitive ability, and psychological status. MP, bite force, and occlusal area were tested to assess dynamic objective masticatory function, and the number of remaining teeth and functional tooth pairs were determined to assess static objective masticatory function. Handgrip strength (HG), oral dryness, and tongue pressure (TP) were assessed to identify influencing factors. Intergroup differences were evaluated by ANOVA and the Kruskal‒Wallis test, and correlations between ODK and orofacial factors were evaluated. Results This study revealed significant age-related declines in TP, HG, and ODK, especially after 65 years of age. Factors affecting MP were posterior teeth, the Eichner index, bite force, occluding area, the Korean Mini-Mental State Examination (KMMSE) score, and ODK. Each ODK syllable was associated with different factors, but common factors associated with ODK were MP, HG, and PHQ-9 score. For the syllables /pa/ta/, the Eichner Index, TP, and oral dryness were also associated. For the syllable /ka/ in Gr3, MP, TP, HG, oral dryness, and the KMMSE score were associated. Conclusions These results could provide practical guidelines for oral rehabilitation in old adults and contribute to improving the understanding of age-related changes in oral function and the multidimensional nature of masticatory dynamics.https://doi.org/10.1186/s12903-024-04214-9Masticatory performanceTongue-lip motor functionSwallowing functionOral frailty
spellingShingle Se-Yeon Min
Nan-Sim Pang
Yu-Ri Kim
Sol-Ah Jeong
Bock-Young Jung
Factors associated with age-related changes in oral diadochokinesis and masticatory function in healthy old adults
BMC Oral Health
Masticatory performance
Tongue-lip motor function
Swallowing function
Oral frailty
title Factors associated with age-related changes in oral diadochokinesis and masticatory function in healthy old adults
title_full Factors associated with age-related changes in oral diadochokinesis and masticatory function in healthy old adults
title_fullStr Factors associated with age-related changes in oral diadochokinesis and masticatory function in healthy old adults
title_full_unstemmed Factors associated with age-related changes in oral diadochokinesis and masticatory function in healthy old adults
title_short Factors associated with age-related changes in oral diadochokinesis and masticatory function in healthy old adults
title_sort factors associated with age related changes in oral diadochokinesis and masticatory function in healthy old adults
topic Masticatory performance
Tongue-lip motor function
Swallowing function
Oral frailty
url https://doi.org/10.1186/s12903-024-04214-9
work_keys_str_mv AT seyeonmin factorsassociatedwithagerelatedchangesinoraldiadochokinesisandmasticatoryfunctioninhealthyoldadults
AT nansimpang factorsassociatedwithagerelatedchangesinoraldiadochokinesisandmasticatoryfunctioninhealthyoldadults
AT yurikim factorsassociatedwithagerelatedchangesinoraldiadochokinesisandmasticatoryfunctioninhealthyoldadults
AT solahjeong factorsassociatedwithagerelatedchangesinoraldiadochokinesisandmasticatoryfunctioninhealthyoldadults
AT bockyoungjung factorsassociatedwithagerelatedchangesinoraldiadochokinesisandmasticatoryfunctioninhealthyoldadults