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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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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 visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
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Assessment of the Mouth01:26

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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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Related Experiment Video

Updated: Feb 23, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
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Published on: August 22, 2022

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Caries Progression Rate in Primary Teeth: A Retrospective Study.

Nili Tickotsky, Roy Petel, Rabi Araki

    The Journal of Clinical Pediatric Dentistry
    |September 6, 2017
    PubMed
    Summary

    Caries progression in primary teeth is faster than previously thought, particularly in children from low socioeconomic backgrounds. This study tracked lesion development over time to understand its rapid advancement.

    Keywords:
    caries progressionprimary teethproximal caries

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    Area of Science:

    • Pediatric Dentistry
    • Dental Public Health
    • Cariology

    Background:

    • Early childhood caries (ECC) research often focuses on lesion prevalence rather than progression rates.
    • Understanding caries progression in primary teeth is crucial for effective intervention strategies.
    • Limited data exists on the behavior of proximal and occlusal carious lesions in primary teeth.

    Purpose of the Study:

    • To investigate the prevalence and behavior of proximal and occlusal carious lesions in primary teeth.
    • To determine the rate of caries progression in primary teeth among children from low socioeconomic status.
    • To compare observed caries progression rates with previously reported findings.

    Main Methods:

    • Retrospective analysis of bite-wing radiographs from 95 children (aged 5-12) with a minimum three-year follow-up.
    • Examination of 135 primary teeth and 141 tooth surfaces for caries advancement.
    • Statistical analysis including Mann-Whitney, Kruskal-Wallis, and Kaplan-Meier to evaluate caries progression rate.

    Main Results:

    • Carious lesions progressed from outer enamel to the dentino-enamel junction in approximately 0.8 years.
    • Further progression to the inner dentin took an additional 1.4 years.
    • The observed caries progression rate was found to be more rapid than previously documented.

    Conclusions:

    • Caries progression in primary teeth occurs at a faster rate than previously reported.
    • Children from lower socioeconomic backgrounds are disproportionately affected by rapid caries progression.
    • Findings highlight the urgent need for targeted preventive and therapeutic interventions in vulnerable populations.