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Updated: Jul 7, 2025

A Morphometric and Cellular Analysis Method for the Murine Mandibular Condyle
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Morphometric micro-CT study of contralateral mandibular incisors.

Usame Sevgi1,2, Gaute Floer Johnsen2,3, Badra Hussain4

  • 1DF Dental Group, Istanbul, Turkey.

Clinical Oral Investigations
|December 26, 2023
PubMed
Summary

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Contralateral mandibular incisors show significant anatomical symmetry, making them reliable for root canal comparison studies. This symmetry aids in clinical decision-making for endodontic treatments.

Area of Science:

  • Dental Anatomy
  • Endodontics
  • Morphological Analysis

Background:

  • Understanding tooth morphology is crucial for endodontic procedures.
  • Assessing symmetry in contralateral teeth can optimize study designs and clinical approaches.

Purpose of the Study:

  • To quantitatively assess the anatomical similarity and symmetry of contralateral mandibular incisors.
  • To evaluate the suitability of these teeth for comparative root canal studies.

Main Methods:

  • Micro-computed tomography (micro-CT) scans were used to create 3D models of 60 pairs of mandibular incisors.
  • Morphological parameters including length, canal width, and dentinal thickness were quantitatively analyzed.
  • Statistical tests (paired t-test, Wilcoxon signed-rank test, Mann-Whitney U test) were employed to compare contralateral pairs.
Keywords:
Bilateral anatomyBilateral symmetryComparisonContralateral incisorsMicro-CTMorphological symmetryStandardization

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Main Results:

  • Contralateral mandibular incisors demonstrated significant symmetry in key morphological parameters like length and canal width.
  • No statistically significant differences were found between contralateral pairs in normalized parameters.
  • While central incisors were longer, accessory canal distribution was similar between central and lateral incisors.

Conclusions:

  • Contralateral mandibular incisors exhibit substantial anatomical similarity, validating their use in root canal comparison studies.
  • The observed symmetry supports their role as a reliable reference in endodontic research.
  • Findings emphasize the importance of considering natural dental symmetry for informed clinical decision-making.