The purpose of this study was to determine the prevalence of odontogenic cysts at the Pernambuco School of Dentistry - Universidade de Pernambuco (Brazil) and compare this prevalence with other international studies. Data for the study were obtained from reports of patients diagnosed with odontogenic cysts between 1992 and 2007. Case records of patients who fit the Histological Classification of the World Health Organization (2005) were included. The following variables were analyzed: gender, age group, anatomical location, histological type and ethnic background. Odontogenic cysts accounted for 9.94% of all lesions biopsied throughout the study period. Mean patient age was 28.9 years and 57.6% of the patients were males (P > 0.05). Radicular cyst was the most prevalent histological type (52.2%), followed by dentigerous cyst (30.7%). Regarding ethnic background, 41.8 % of the patients were of African descent, followed by Caucasians and other ethnic groups (P > 0.05). The mandible was the most prevalent site of the lesions (56%). Odontogenic cysts appear to have a distinct predilection for the male gender, the second and third decades of life (P < 0.05) and are more frequent in the mandible. The removal of odontogenic keratocysts from the new WHO classification has not altered the order of the most prevalent cysts in the maxillofacial complex.

Myiasis is a term derived from the Greek word "myia", meaning invasion of vital tissue of humans or other mammals by fly larvae. The deposited eggs develop into larvae, which penetrate deep structures causing adjacent tissue destruction. It is an uncommon clinical condition, being more frequent in underdeveloped countries and hot climate regions, and is associated with poor hygiene, suppurative oral lesions, alcoholism and senility. Its diagnosis is made basically by the presence of larvae. This paper reports a case of oral and maxillofacial myiasis involving 273 larvae in a patient with epidermoid carcinoma without physical or neurological deficiency. The patient's management was antisepsis, larval removal and general care, before death after three months.

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Esta pesquisa procurou identificar as adaptações do sistema estomatognático em indivíduos com desproporções maxilomandibulares. A revisão bibliográfica se fez por meio das bases de dados nacionais e internacionais, abordando as adaptações do sistema estomatognático em indivíduos com desproporção maxilo-mandibular submetidos a tratamento ortodôntico-cirúrgico (cirurgia ortognática) associado à intervenção fonoaudiológica. Observou-se que sujeitos com prognatismo e retrognatismo apresentam adaptações em todas as funções realizadas pelo sistema motor oral, no período pré-cirurgia ortognática. No prognatismo mandibular, a função mais adaptada é a mastigação, caracterizando-se em movimentos verticalizados com utilização do dorso da língua para amassamento do alimento e pouca utilização dos músculos mastigatórios. No retrognatismo mandibular, estudos mostram que a deglutição apresenta-se bastante adaptada, com presença de deslize mandibular anterior somado ao movimento póstero-anterior de língua e com participação da musculatura perioral. Após a cirurgia ortognática, alguns casos podem apresentar adequação das funções do sistema estomatognático, porém em outros persistem as alterações, sendo necessário o conhecimento do fonoaudiólogo sobre as adaptações pré-existentes para traçar o melhor plano de reabilitação.