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It was demonstrated that plaque control was effective in improving the clinical features and painful symptoms of oral lichen planus with gingival involvement.

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The purpose of this clinical study was to investigate if periodontal disease and rheumatoid arthritis (RA) are associated. The study included 39 RA patients (test group) and 22 age-and gender-matched healthy individuals (control group). Questionnaires on general and oral health were applied and a complete periodontal exam, including visible plaque, marginal bleeding, attachment loss (AL) and number of teeth present, was also performed by a single calibrated examiner. Diabetes mellitus patients and smokers were excluded. RA patients had fewer teeth, higher prevalence of sites presenting dental plaque and a higher frequency of sites with advanced attachment loss. Although the prevalence of dental plaque was higher in the test group (Chi-square test, p = 0.0006), the percentage of sites showing gingival bleeding was not different (Fisher's exact test, p > 0.05). Based on our results, we suggest that there is an association between periodontal disease and RA.

Gardner syndrome is a rare autosomal-dominant condition characterized by the presence of intestinal polyposis, multiple osteomas, and tumors of the hard and soft tissues. This paper describes a patient of Gardner syndrome with unusual maxillofacial manifestation with presence of fibromyxomatous injury in jaw, coronoid hyperplasia, and multiple osteomas diffusely distributed in the craniomaxillofacial skeleton. Imaging examinations have identified craniofacial manifestations and the patient was referred to the gastroenterologist who confirmed the diagnosis of Gardner syndrome. The early diagnosis of this syndrome is important since intestinal polyps have high potential for malignant transformation. It is therefore essential that dentists are familiar with the maxillofacial features of this condition, since they precede the intestinal polyposis and encourage early diagnosis. In addition to classic maxillofacial signs of this syndrome, one must consider that, although it is rare, other injuries may be present such as those described in this clinical patient.

OBJECTIVE: To evaluate the discrepancy index between the clinical and histological diagnosis and the prevalence of epithelial dysplasia and carcinoma in 45 patients with potentially malignant epithelial oral lesions (PMEL).PATIENTS AND METHODS: We submitted 45 patients with PMEL to clinical examination and obtained a biopsy from each. The results of histological diagnosis were compared to the clinical diagnosis. RESULTS: Clinical diagnosis showed that the most common PMEL was leukoplakia followed by lichen planus and by actinic cheilitis associated with leukoplakia. The most common site was the buccal mucosa. Histological diagnosis revealed that 46.7% of the PMEL were lichen planus. The discrepancy index between clinical and histological diagnosis was 24.4%. The higher discrepancy index occurred among leukoplakias. The prevalence of epithelial dysplasia and carcinoma was 17.8%. CONCLUSIONS: We conclude that all PMEL should be submitted to a microscopic analysis because the discrepancy between clinical and histological diagnosis was present in a quarter of these lesionS. Otherwise, the epithelial dysplasia and carcinoma were more frequent in the leukoplakias.

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