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Related Concept Videos

Teeth01:15

Teeth

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 and...
Tooth Anatomy01:21

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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Optimized Bone Sampling Protocols for the Retrieval of Ancient DNA from Archaeological Remains
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Age estimation in Indians from extracted unsectioned teeth.

Ashith B Acharya1, Kiran K Kumar

  • 1Department of Forensic Odontology, SDM College of Dental Sciences and Hospital, Sattur, Dharwad 580009, Karnataka, India. ashith.acharya@sdmcds.edu

Forensic Science International
|July 19, 2011
PubMed
Summary
This summary is machine-generated.

Estimating age from extracted Indian teeth using dental attrition and periodontal ligament (PDL) attachment level showed low accuracy. These non-destructive forensic methods are not yet reliable for routine court use due to high error rates.

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Area of Science:

  • Forensic Anthropology
  • Dental Age Estimation

Background:

  • Teeth are crucial for determining age-at-death in forensic investigations.
  • Non-destructive methods are preferred for preserving dental evidence for court.
  • No prior data exists on age estimation from extracted teeth specifically in the Indian population.

Purpose of the Study:

  • To evaluate the accuracy of four dental parameters for age estimation from extracted teeth in Indians.
  • To assess the reliability of dental attrition, periodontal ligament (PDL) attachment level, root dentin translucency, and root color.

Main Methods:

  • Examined 106 extracted teeth from individuals aged 20-78 years.
  • Utilized visual grading and measurement techniques for four dental parameters.
  • Performed linear and stepwise regression analyses to correlate dental changes with age.

Main Results:

  • Low correlations (r/R = 0.05-0.46) and high standard errors (± 13.1-4.6 years) were observed.
  • Periodontal ligament (PDL) attachment level showed the strongest correlation (r = 0.45).
  • Root dentin translucency exhibited the lowest correlation (r = 0.05-0.09), likely due to difficulties in assessing unsectioned teeth.

Conclusions:

  • Age estimation from extracted Indian teeth using the studied parameters has limited accuracy.
  • While PDL attachment level and attrition showed some correlation, high error rates preclude routine forensic application.
  • Further research may explore clinical estimation without extraction, but current methods are not reliable.