Objective:

To determine prevalence of periodontal disease and related clinical and sociodemographic factors.

Material and methods:

An observational, descriptive and retrospective study was undertaken. Criteria to select patients were as follows: ≥ 35 years of age, full clinical history and periodontal chart and a minimum of ten teeth present in the mouth. Clinical periodontal and sociodemographic variables were examined; periodontal diagnosis was established according to two classification systems (AAP and CDC-AAP). χ2 was calculated in order to analyze differences among sociodemographic and clinical variables with respect to periodontitis severity. Median test was used for quantitative variables.

Results:

Periodontitis frequency was 67.2% (severe periodontitis 43.2%). Gingivitis frequency was 32.8%. In 155 cases there was concordance of two observers in cases of severe periodontitis. CDC-AAP classification established more cases of moderate periodontitis and only 47 cases in concordance with AAP system. Periodontitis patients exhibited greater bleeding upon probing, insertion loss and periodontal pockets (p < 0.001). Patients with periodontitis lost more teeth that patients with gingivitis. Periodontitis was more frequent in males than in females (p = 0.025). Patients with periodontitis exhibited lower educational levels, suffered systemic diseases, were addicted to tobacco and alcohol use and had encountered problems with their affiliation to social security services.

Conclusions:

Periodontitis frequency in studied population was high (60%), and found to be related to systemic diseases, tobacco use, affiliation to social security services and educational level. Periodontitis frequency was determined by used classification system.

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