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Related Experiment Video

Updated: Feb 3, 2026

Author Spotlight: Self-Assessment Protocol for Predicting Psoriatic Arthritis in Psoriasis Patients
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Periodontitis as another comorbidity associated with psoriasis: A case-control study.

Victor Silva Mendes1, Luís Otávio Miranda Cota1, Amanda Almeida Costa1

  • 1Department of Dental Clinics, Oral Pathology, and Oral Surgery, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.

Journal of Periodontology
|November 3, 2018
PubMed
Summary

Individuals with psoriasis have a higher prevalence of periodontitis. Psoriasis severity is linked to periodontal health, but smoking, BMI, and tooth count are key risk factors for periodontitis.

Keywords:
periodontitispsoriasisrisk factors

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Area of Science:

  • Periodontology
  • Dermatology
  • Immunology
  • Public Health

Background:

  • Periodontitis is increasingly recognized for its association with systemic inflammatory diseases.
  • Understanding the link between psoriasis and periodontitis is crucial for comprehensive patient care.

Purpose of the Study:

  • To investigate the association between psoriasis and periodontitis.
  • To explore the influence of risk factors on this association.

Main Methods:

  • A case-control study involving 756 participants (397 with psoriasis, 359 controls).
  • Comprehensive periodontal examinations including plaque index, probing depth, clinical attachment level, and bleeding on probing.
  • Statistical analysis using univariate and multivariate logistic regression to identify risk variables.

Main Results:

  • Periodontitis prevalence was significantly higher in psoriasis patients (46.1%) compared to controls (33.1%).
  • Psoriasis severity correlated positively with periodontitis prevalence and severity of periodontal parameters.
  • Multivariate analysis identified tooth count, smoking, and body mass index as significant risk factors for periodontitis.

Conclusions:

  • Periodontitis is more prevalent in individuals with psoriasis.
  • Psoriasis severity is strongly associated with periodontal clinical parameters.
  • While psoriasis itself may not be an independent risk factor in multivariate models, associated lifestyle and health factors like smoking, BMI, and tooth loss significantly impact periodontitis risk.