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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...

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Using Inducible Osteoblastic Lineage-Specific Stat3 Knockout Mice to Study Alveolar Bone Remodeling During Orthodontic Tooth Movement
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Morphometric analysis of third molar root development by an experimental method using digital orthopantomographs.

Valeria Santoro1, Piercarlo Lozito, Nunzio Mastrorocco

  • 1Section of Legal Medicine, University of Bari, P.zza Giulio Cesare n.11, 70124 Bari, Italy. vasantoro@virgilio.it

Journal of Forensic Sciences
|June 11, 2008
PubMed
Summary
This summary is machine-generated.

This study introduces a morphometric analysis for third molar root development, improving upon purely morphological methods. The findings reveal age-related differences in root development, aiding in biological age estimation.

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Area of Science:

  • Dentistry
  • Anthropology
  • Forensic Science

Background:

  • Traditional morphological analysis of third molar root development has limitations.
  • A need exists for more precise methods to assess developmental stages.

Purpose of the Study:

  • To conduct a morphometric analysis of third molar root development.
  • To establish a reliable crown-root (C/R) ratio for predicting root length.
  • To overcome the limitations of exclusively morphological assessments.

Main Methods:

  • Phase 1: Verified the constant crown-root (C/R) ratio in 100 fully developed third molars.
  • Phase 2: Calculated final C/R ratios in 322 developing third molars to predict root length.
  • Statistical analysis included 90%, 95%, and 99% confidence intervals.

Main Results:

  • Significant differences in root development were observed based on age groups (16-17 vs. 18-19 years).
  • Established tolerance class widths and other statistical indicators for morphometric analysis.
  • The morphometric approach offers advantages over purely morphological studies.

Conclusions:

  • Morphometric analysis provides a more advantageous method for assessing third molar root development compared to morphological analysis alone.
  • While useful for biological age estimation, these methods offer indications rather than certainties of chronological age.