| dc.description.abstract | Individuals older tan sixty years (elderly population) prsent the major prevalence of oral mucosal lesions, according to several clinic epidemiological sulveys. However, because of they lack of histologycal confirmation is important to analize the biopsies of oral mucosal lesions concerning to this age group. This restrospective study determines the distribution of oral mucosal lesions according to age, sex and biological nature, that were received between 1990 and 1998 in the Oral Pathology Reference Institute (IREPO) from the school of dentistry, University of Chile.
From 8857 examined biopsies, 1185 pertained to elderly population (13,4%) and from this group 912 (77%) corresponded to oral mucosal lesions. The major number of this lesions were found in women (60%), except for the squamous cell carcinoma, more frequently seen in men. According to the following: 55,8% reactive, 12,4% malign neoplasm, 9,4% benign neoplasms and ither seudotumoral lesions, 4,1% inmunological, 7.2 infeccious and 11,1% others.
The four most frequent histopathological diagnoses were: 26% fibrous hiperplasia, 9% squamous cell carcinoma, 7% pyogenic granuloma, 7% epitelial-conjuntive hiperplasia, and 6% epitjelial hiperplasia with and without displasia, while the most often locations were cheek (16%), tongue (14%) and flange (13%) | |
