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A new insight into masticatory function and its determinants: a latent class analysis.

Awat Feizi1, Ammar Hassanzadeh Keshteli2, Saber Khazaei3

  • 1Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.

Community Dentistry and Oral Epidemiology
|August 21, 2015
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Summary

Poor masticatory function is prevalent in Iranian adults, affecting over 11%. Key factors linked to reduced chewing ability include older age, male gender, low physical activity, and smoking.

Keywords:
adultsepidemiologyoral healthtooth loss

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Area of Science:

  • Oral health
  • Epidemiology
  • Public health

Background:

  • Masticatory function is crucial for overall health.
  • Limited data exists on masticatory function in Iran.
  • No prior studies utilized latent class analysis (LCA) for this population.

Purpose of the Study:

  • To investigate masticatory function prevalence in Iranian adults.
  • To identify determinants of masticatory function using LCA.
  • To analyze masticatory function patterns across gender and age groups.

Main Methods:

  • Cross-sectional study of 8691 adults.
  • Validated questionnaire used to assess masticatory function.
  • Latent class analysis (LCA) and latent class regression (LCR) applied.

Main Results:

  • 11.24% had poor and 24.87% had moderate masticatory function.
  • Males were significantly more likely to have poor masticatory function (14.33%) than females (2.35%).
  • Higher age, male gender, low physical activity, and smoking were associated with poor masticatory function.

Conclusions:

  • A high prevalence of poor masticatory function exists among Iranian adults.
  • Aging, male sex, reduced physical activity, and smoking are significant risk factors.
  • Findings highlight the need for targeted interventions to improve oral health.