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Related Experiment Videos

Morphological changes in diseased cementum layers: a scanning electron microscopy study.

E Bilgin1, C A Gürgan, M Nejat Arpak

  • 1Ankara University, Faculty of Dentistry, Department of Periodontology, Ankara, Turkey.

Calcified Tissue International
|March 3, 2004
PubMed
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Periodontal disease significantly thins root cementum and alters collagen fibers. This study used scanning electron microscopy (SEM) to reveal these critical morphological changes in diseased versus healthy cementum.

Area of Science:

  • Periodontology
  • Dental Morphology
  • Biomaterials Science

Background:

  • Periodontal disease causes significant destruction of tooth-supporting structures.
  • Root cementum plays a crucial role in periodontal health and regeneration.
  • Morphological changes in cementum are key indicators of disease progression.

Purpose of the Study:

  • To compare morphological changes in root cementum layers between healthy and periodontally diseased teeth.
  • To evaluate the thickness and collagen fiber morphology of cementum using scanning electron microscopy (SEM).

Main Methods:

  • Ninety-two periodontally compromised teeth were analyzed.
  • Probing depth (PD) and clinical attachment loss (CAL) were recorded.
  • Root specimens underwent SEM analysis to assess cementum thickness and collagen fiber structure.

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Main Results:

  • A significant decrease in cementum thickness was observed on diseased root surfaces compared to healthy surfaces (P < 0.001).
  • Healthy cementum exhibited denser, more conspicuous collagen fibers and interfibrillar matrix than diseased cementum.
  • Individual variations in cemental fiber density and visibility were noted.

Conclusions:

  • Periodontal disease leads to a significant reduction in root cementum thickness.
  • Alterations in collagen fiber morphology are characteristic of cementum affected by periodontal disease.
  • SEM provides valuable insights into the microstructural changes of cementum in periodontal disease.