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Related Concept Videos

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
The inspection begins with visually examining the mouth for symmetry, color, and size.
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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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The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
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Related Experiment Video

Updated: Jan 9, 2026

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry
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13-Year Cohort Study on Inactive Occlusal Enamel Caries Lesions.

Julio Eduardo do Amaral Zenkner1, Nathália Costa de Castro2, Ângela Dalla Nora2

  • 1School of Dentistry, Federal University of Santa Maria, Santa Maria, Brazil, jezenkner@gmail.com.

Caries Research
|December 2, 2025
PubMed
Summary

Inactive dental caries lesions on permanent molars showed a higher risk of progression compared to sound surfaces over 13 years. However, most inactive lesions remained stable, indicating a low overall progression rate for these dental caries.

Keywords:
Cohort studyDental cariesDisease progressionPermanent dentition

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Area of Science:

  • Dentistry
  • Cariology
  • Epidemiology

Background:

  • Dental caries lesions on permanent molars were classified as inactive.
  • The study aimed to evaluate the long-term clinical behavior and progression risk of these inactive lesions.
  • A comparison was made with sound occlusal surfaces.

Purpose of the Study:

  • To assess the 13-year progression risk of inactive occlusal dental caries lesions in permanent molars.
  • To compare the progression of inactive caries lesions with sound occlusal surfaces.
  • To identify predictors of caries progression.

Main Methods:

  • A 13-year cohort study involving clinical assessments of occlusal surfaces in permanent molars.
  • Data collected included plaque, caries status, and eruption stage.
  • Logistic regression models with generalized estimating equations were used to analyze progression by activity and severity.

Main Results:

  • Inactive occlusal caries lesions demonstrated approximately double the risk of progression compared to sound surfaces.
  • Progression rates for inactive lesions were 18.8% (activity) and 13.4% (severity), versus 8.7% and 5.8% for sound sites.
  • Adjusted odds ratios indicated a significantly higher risk for inactive lesions (OR=2.09 for activity, OR=2.49 for severity).

Conclusions:

  • While the majority (>80%) of initially inactive occlusal caries lesions did not progress over 13 years, they presented a higher risk.
  • Inactive lesions pose a greater progression risk than sound occlusal surfaces in permanent molars.
  • These findings highlight the importance of monitoring inactive caries lesions.