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Updated: May 10, 2026

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
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Age estimation using maxillary central incisors: A radiographic study.

Nitin Agarwal1, Parul Ahuja, Abhishek Sinha

  • 1Department of Oral Medicine and Radiology, Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India.

Journal of Forensic Dental Sciences
|June 7, 2013
PubMed
Summary
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Forensic dentistry uses tooth changes to predict age. This study found that morphological parameters of maxillary central incisors accurately estimate chronological age, with root length showing the greatest variation.

Area of Science:

  • Forensic Dentistry
  • Anthropology
  • Radiology

Background:

  • Age estimation is crucial in forensic dentistry.
  • Secondary age-related changes in teeth are reliable indicators.
  • Previous studies utilized various dental parameters for age assessment.

Purpose of the Study:

  • To introduce a method for chronological age assessment.
  • To investigate the correlation between age and morphological features of maxillary central incisors.
  • To establish regression formulas for dental age calculation.

Main Methods:

  • Study included 50 subjects aged 20-70 years.
  • Intraoral periapical radiographs of maxillary central incisors were obtained.
  • Measurements included tooth, pulp, and root lengths, and root/pulp widths; regression analysis was applied.
Keywords:
Age estimationcentral incisorsforensic identificationradiographic study

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Main Results:

  • Estimated mean age did not significantly differ from actual mean age (P > 0.05).
  • Root length exhibited the largest difference between estimated and actual age (-1.035 ± 1.86 years).

Conclusions:

  • Morphological parameters of maxillary central incisors can reliably estimate chronological age.
  • The developed regression formulas provide a valid method for dental age assessment.
  • Root length is a significant variable in age estimation using this method.