The degree of dysplasia in AC was not statistically associated with gender, age, ethnicity, occupational exposure to sunlight, or clinical appearance. This study provides some support for the hypothesis that clinicopathologic features are not related to the degree of dysplasia in AC.

Ours findings indicate the presence of RANK, RANKL and OPG in cysts. Moreover, increased expression of OPG compared to RANKL in the lining epithelium could contribute to the differential bone resorption activity in theses lesions.

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Avaliou-se in vitro a atividade antimicrobiana, antifúngica e antiaderente da aroeira-do-sertão, malva e goiabeira sobre microrganismos do biofilme dental e candidose oral. Os extratos mostraram-se eficazes, inibindo o crescimento das bactérias do biofilme dental e fungos da candidose oral, sugerindo a utilização dessas plantas como meio alternativo na terapêutica odontológica.

Introduction and objective: The peripheral and central giant cell lesions (PGCL and CGCL) are a group of pathological entities with similar histopathological features and whose origin has not been fully elucidated. The former is reactive and the latter exhibits a nonneoplastic proliferative behavior. This article aims to review the literature on peripheral giant cell lesions (PGCL) and central giant cell lesions (CGCL) by discussing the most important aspects pertaining to each of them. Results: These lesions are found in different locations and show diverse clinical signs despite having the same histopathological features. The treatment consists in the surgical resection by different techniques depending on the type of the lesion and clinical conditions. In the case of CGCL, drug therapy may also be employed. Conclusion: Although there is no consensus in the literature, it is essential to know the etiology of these lesions as well as the exact origin of the giant cells. Due to their singular biological behavior, it is of utmost importance to establish a differential diagnosis between the two lesions and other processes that have similar clinical, radiological and histological characteristics, inasmuch as this procedure is essential to provide a suitable treatment and establish a prognosis.

Federal do Rio Grande do Norte (UFRN) e professora da disciplina de Patologia Oral da UFRN. 2. Graduandos em Odontologia pela UFRN e bolsista de iniciação científica da base de pesquisa em Patologia Oral da UFRN. 3. Mestre em Patologia Oral pela UFRN. 4. Doutor em Ciências (Microbiologia Médica) pela Universidade Federal do Rio de Janeiro (UFRJ) e professor adjunto da UFRN. 5. Doutora em Patologia Oral pela UFRN e professora da disciplina de Patologia Oral da UFRN. Programa de Pós-Graduação em Patologia Oral da UFRN.

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