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Variance components of gingival thickness.

H P Müller1, E Könönen

  • 1Faculty of Dentistry, Kuwait University, Safat, Kuwait. hp.muller@hsc.edu.kw

Journal of Periodontal Research
|April 28, 2005
PubMed
Summary

Gingival thickness in young adults is primarily linked to tooth characteristics. Thinner gums are associated with a higher tendency for bleeding, indicating a connection between gum thickness and periodontal health indicators.

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Area of Science:

  • Periodontology
  • Dental Anatomy
  • Biostatistics

Background:

  • Periodontal phenotypes vary, but cluster analysis has limited external validity.
  • Understanding facial gingival thickness variance is crucial for periodontal health assessment.

Purpose of the Study:

  • To investigate variance components of facial gingival thickness in young adults with mild gingivitis.
  • To explore associations between gingival thickness and clinical periodontal parameters.

Main Methods:

  • Ultrasound was used to measure gingival thickness in 33 young adult females with mild gingivitis.
  • Periodontal probing depth, clinical attachment level, gingival bleeding index, and plaque index were recorded.
  • Multilevel variance component and random intercept models were employed.

Main Results:

  • Mean gingival thickness was 0.93 mm, with subject variation accounting for 4.2%.
  • Adjusted for tooth type, gingival thickness correlated with probing depth, bleeding index, and plaque index.
  • Tooth-level variation was significantly reduced after covariate analysis.

Conclusions:

  • Gingival thickness is predominantly associated with tooth-related variables.
  • A thinner gingiva correlates with an increased tendency for bleeding on probing.
  • Subject variability in periodontal phenotype contributes minimally to overall variance.

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