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Related Concept Videos

Teeth01:15

Teeth

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The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
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Assessment of the Mouth01:26

Assessment of the Mouth

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A thorough mouth assessment, including inspection and palpation of the lips, gums, tongue, tonsils, uvula, and pharynx, is crucial in detecting potential health issues. Diseases ranging from oral cancer to systemic conditions like diabetes could be identified early through careful oral examination. This article provides a detailed guide on conducting a comprehensive mouth assessment.
Mouth Inspection
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Tooth Anatomy01:21

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The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
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Related Experiment Video

Updated: Jan 9, 2026

Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer
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Modified Relative Handgrip Strength and Tooth Loss: A Nationwide Study.

Yoon-Jin Kim1, Ji-Eun Kim1, Choong-Ho Choi1,2

  • 1Department of Preventive and Public Health Dentistry, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.

Journal of Oral Rehabilitation
|December 10, 2025
PubMed
Summary
This summary is machine-generated.

Handgrip strength (HGS), adjusted for waist circumference (WC), is strongly linked to reduced tooth loss. This finding highlights the potential of WC-adjusted HGS as an indicator for oral health risk assessment.

Keywords:
Korea National Health and nutrition examination survey (KNHANES)handgrip strength (HGS)oral healthtooth losswaist circumference (WC)waist‐to‐height ratio (WHtR)weight‐adjusted waist index (WWI)

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Area of Science:

  • Public Health
  • Gerontology
  • Oral Health Epidemiology

Background:

  • Handgrip strength (HGS) is a key indicator of overall muscular fitness and health.
  • Previous research has explored links between absolute or BMI-adjusted HGS and systemic conditions.
  • The association between modified relative HGS indices and tooth loss remains unexamined.

Purpose of the Study:

  • To investigate the association between tooth loss and various modified relative HGS indices.
  • To utilize nationally representative data for a comprehensive analysis.
  • To explore novel anthropometric adjustments for HGS in relation to oral health.

Main Methods:

  • Analysis of data from the Korean National Health and Nutrition Examination Survey (2014-2023, n=52,206).
  • Calculation of relative HGS by adjusting dominant HGS with various body indices.
  • Classification of oral status (functional ≥20 teeth vs. reduced <20 teeth) and statistical analysis (chi-square, t-test, IRR, ROC).

Main Results:

  • Waist circumference (WC)-based relative HGS demonstrated the strongest inverse association with tooth loss (IRR=0.505).
  • Relative HGS indicators adjusted for central adiposity measures (WC, WHtR, WWI) showed the highest diagnostic accuracy for predicting tooth loss (AUC ≈ 0.63).
  • All HGS indicators showed significant differences based on the functional dentition criterion (p<0.001).

Conclusions:

  • WC-adjusted relative HGS is a significant inverse predictor of tooth loss.
  • This metric shows potential for early identification of individuals at high risk for tooth loss.
  • Findings support integrating HGS measures into multidisciplinary oral health strategies.