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A scanning electron microscopic study of hypercementosis.

Bethânia Camargo Pinheiro1, Tiago Novaes Pinheiro, Ana Lúcia Alvarez Capelozza

  • 1Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil. bethaniacp@hotmail.com

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PubMed
Summary
This summary is machine-generated.

This study examined teeth with hypercementosis using scanning electron microscopy (SEM). Findings reveal how cementum hyperplasia affects root morphology and apical foramina, impacting endodontic treatment difficulty.

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Area of Science:

  • Dental Morphology
  • Endodontics
  • Oral Pathology

Background:

  • Hypercementosis is a condition characterized by excessive cementum deposition.
  • Understanding its morphological impact on root apices is crucial for endodontic success.
  • Previous studies have not extensively detailed apical morphological changes associated with different hypercementosis types.

Purpose of the Study:

  • To evaluate the morphological characteristics of teeth with hypercementosis relevant to endodontic practice.
  • To analyze the relationship between hypercementosis types and apical foramen morphology.
  • To identify potential challenges in endodontic treatment due to these morphological alterations.

Main Methods:

  • Scanning electron microscopy (SEM) analysis of root apexes from 28 extracted teeth with hypercementosis.
  • Categorization of teeth by tooth group and hypercementosis type.
  • Examination of root surface contour, regularity, resorption, apical foramen presence, number, and diameter.

Main Results:

  • Club-shaped hypercementosis correlated with foramen presence and apical foramen obstruction.
  • Focal hypercementosis cases showed surface foramina, including laterally located ones.
  • Circular cementum hyperplasia was most prevalent in residual roots (2/3).
  • A high number of foramina or apical foramen obliteration was observed in the apical third.

Conclusions:

  • Morphological changes in teeth with hypercementosis, particularly apical foramen characteristics, present significant challenges for endodontic treatment.
  • SEM analysis provides detailed insights into root apex alterations in hypercementosis.
  • Understanding these features aids in predicting and managing endodontic complexities in affected teeth.