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Teeth01:15

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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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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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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.
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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.
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Lifestyle Factors and Health01:20

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Lifestyle factors play a critical role in maintaining overall health and preventing chronic diseases. Key elements, such as regular physical activity, a nutritious diet, and abstinence from smoking, can significantly enhance physical, mental, and emotional well-being while reducing the risk of several life-threatening conditions.
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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
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Mapping Tooth Loss at the Tooth Level: Associations with Demographic, Health, and Behavioral Factors.

K M McCormick1, G Mejia2, L Luzzi1

  • 1Australian Centre for Population Oral Health, The University of Adelaide, Adelaide, South Australia.

JDR Clinical and Translational Research
|October 22, 2025
PubMed
Summary

Specific tooth loss patterns emerged across demographics. Males lost more incisors, older adults lost more anterior teeth, and smoking/diabetes linked to anterior tooth loss, highlighting the need for targeted oral health strategies.

Keywords:
diabetes mellitusedentulousmouthperiodontitissmokingsocioeconomic factorstooth loss

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Area of Science:

  • Dental Public Health
  • Epidemiology
  • Oral Health Disparities

Background:

  • Tooth loss is a significant oral health issue with varied prevalence across populations.
  • Understanding demographic and behavioral factors influencing tooth loss is crucial for effective public health interventions.

Purpose of the Study:

  • To analyze tooth loss patterns across diverse demographic groups using National Health and Nutrition Examination Survey (NHANES) data.
  • To identify specific teeth at higher risk of loss and associated contributing factors.

Main Methods:

  • Analysis of data from 24,945 adults (≥20 years) from NHANES (2009-2018).
  • Modeling of tooth presence/absence based on age, income, education, smoking, and glycemic status.
  • Application of survey weights and imputation for robust regression analyses, excluding dental implants.

Main Results:

  • Distinct intraoral and demographic patterns of tooth loss were observed.
  • Males showed higher mandibular incisor loss; older adults (≥60) had increased loss in mandibular anterior and premolar regions.
  • Smoking and diabetes were associated with anterior tooth loss; high income/education linked to fewer first premolars, possibly due to orthodontics.

Conclusions:

  • Tooth-level analysis reveals vulnerabilities often missed in whole-mouth assessments.
  • Findings emphasize the need for site-specific prevention strategies addressing biological risks and socioeconomic inequities.
  • Promoting equitable oral health care requires tailored approaches to help individuals retain natural teeth longer.