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[Genetic and microbiologic tests in periodontal disease]
L Checchi1, M R Gatto, A Pattison
1Sezione di Parodontologia, Dipartimento di Scienze Odontostomatologiche, Facoltà di Medicina e Chirurgia, Alma Mater Studiorum, Università di Bologna, Bologna. luigi.checchi@unibo.it
Minerva Stomatologica
|July 22, 2004
Summary
Genetic polymorphisms in IL-1A and IL-1B are linked to periodontitis severity. This study found no significant association between the "PST" test and periodontal disease severity in patients.
Area of Science:
- Periodontology
- Genetics
- Microbiology
Context:
- Periodontitis is a severe gum disease.
- Genetic factors, specifically IL-1A and IL-1B polymorphisms, are associated with increased periodontitis severity.
- The role of specific bacterial pathogens in periodontitis requires further investigation.
Purpose:
- To investigate the relationship between IL-1A and IL-1B genetic polymorphisms and the presence of Actinobacillus actinomycetemcomitans (Aa), Prevotella intermedia (Pi), and Porphyromonas gingivalis (Pg) in periodontitis patients.
- To assess these associations before and after active periodontal therapy.
- To evaluate the correlation between a "PST" test and periodontal disease severity.
Summary:
- A study of 25 periodontitis patients examined genetic polymorphisms and bacterial presence.
- The "PST" test was positive in 32% of patients, with no significant association found with periodontal disease severity (p > 0.05).
- Good oral hygiene therapy correlated with reduced bacterial counts post-treatment (Fisher test p = 0.03).
Impact:
- This research highlights the complex interplay between genetics, bacteria, and periodontal disease.
- Findings suggest that while hygiene therapy is crucial for reducing bacterial load, the "PST" test may not be a reliable indicator of periodontal disease severity.
- Further studies are needed to elucidate the precise mechanisms linking genetic predispositions and specific bacterial pathogens in periodontitis progression.