Natural Tooth Count and Sleep Quality in Older Adults: The Mediating Effect of Temporomandibular Joint Pain.

ABSTRACT:

Purpose

The study aimed to explore the relationship between tooth count and sleep quality and duration in the elderly, investigating the potential mediating role of temporomandibular joint (TMJ) pain in this relationship.

Methods

Using data from the China Health and Longevity Longitudinal Survey (CLHLS), a cohort analysis was conducted on 5941 older Chinese adults. Multivariate linear regression and mediation analysis were applied to assess the associations, adjusting for sociodemographic factors, health behaviours, and comorbidities.

Results

The participants had a mean natural tooth count of 10.1 (SD = 10.4), a mean sleep quality score of 2.38 (SD = 0.93; lower scores indicate better quality), and a TMJ pain prevalence of 6.93%. Linear regression showed that more nat

SUBMITTER: Pi J 

PROVIDER: S-EPMC12395048 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature