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Tooth Anatomy

Tooth Anatomy

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.
The Crown, Neck, and Root
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 grinding food.

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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

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A comparative analysis of root dentin transparency with known age.

Anita Singhal¹, V Ramesh, Pd Balamurali

¹Department of Oral Pathology and Microbiology, H.P. Government Dental College and Hospital, Shimla - 171 001, India.

Journal of Forensic Dental Sciences

|December 31, 2010

Summary

Root dentin translucency increases with age, making it a reliable indicator for estimating a person's age. This study found a strong correlation between root translucency length and chronological age.

Keywords:

Age estimation dentin transparency gustafson’s criteria

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Published on: November 24, 2012

Area of Science:

Forensic Odontology
Anthropology
Aging Research

Background:

Accurate age estimation is crucial in forensic and anthropological contexts.
Root dentin translucency is a potential biomarker for aging.

Purpose of the Study:

To investigate the correlation between root dentin translucency dimensions and chronological age.
To evaluate the reliability of root translucency for age estimation in unknown individuals.

Main Methods:

50 single-rooted human teeth were sectioned (400 μm) and stained.
Translucent zone area and length were measured using stereomicroscopy and digital calipers.
Correlation analysis was performed between measurements and age.

Main Results:

A strong positive correlation was observed between age and root dentin translucency.
The length of the translucent zone showed a higher correlation with age than the area.
Dentin translucency increases progressively with age.

Conclusions:

Root dentin translucency is a reliable indicator of age.
Length measurements of translucency are more accurate for age estimation than area.
This method offers a valuable tool for forensic age assessment.