[Incidence of dentofacial deformities in the Specialty Hospital of the Instituto Mexicano del Seguro Social]. / Incidencia de deformidades dentofaciales en un Hospital de Especialidades.

OBJECTIVE: To report the incidence and classification of dentofacial deformities from the Maxillofacial Department at the Specialty Hospital at the 21st Century National Medical Center of the Mexican Institute of Social Security in Mexico City. A descriptive, retrospective and transversal study was carried out. MATERIAL AND METHODS: Clinical files from 120 patients were reviewed from May 1997 to May 1998 with the purpose of classifying and determining the types of maxillofacial deformities and also to report whether these deformities were corrected by orthognatic surgery. RESULTS: One hundred twenty clinical files were reviewed and dentofacial deformities were found in 47 (39%). All patients were treated with orthognatic surgery. Surgical treatment was often combined (orthodontia and surgery). CONCLUSIONS: Regardless of the type of dentofacial deformities, an individualized treatment protocol must be designed for each patient. It is important to list the priorities and needs of the patients in order to find appropriate solutions, in regard to their importance.

[Surgical correction of oroantral fistulas with integration of mandibular bone]. / Corrección quirúrgica de fístulas oroantrales con injerto óseo mandibular.

OBJECTIVE: The goal of this study was to formulate a proposal for an alternative surgical technique for treating >3 mm oroantral fistulas by integration of mandibular bone, in an attempt to decrease complications due to its invasive nature. MATERIAL AND METHODS: An observational, descriptive and longitudinal cohort study was carried out in the Maxillofacial Oral Surgery Department in the Specialty Hospital of the 21st Century National Medical Center of the Mexican Institute of Social Security in Mexico City. Sample patients with a diagnosis of oroantral fistula from January 1984 to December 1999 were selected. Surgical correction under general anesthesia was performed with the integration of mandibular osseous graft. Patients were followed postoperatively for 4 years. RESULTS: Of the 22 patients, 13 were male and 9 female, and all were between 25 and 45 years old (average: 35.5 years). They were treated by application of osseous external mandible graft. In most cases, the graft was covered with a sliding mucoperiosteal flap, two were covered with a racquet-type flap and one only one procedure was Von Lagenbeck type because the nasal floor was involved. None of the patients refused the graft. All patients were followed postoperatively, both clinically and radiologically, for 4 years. DISCUSSION: Oroantral communication control is difficult because of mouth fluids, mixed bacterium and a humid environment that promotes development of infection. Therefore, the solution is complicated. As a consequence, it is thought that a simple technique such as the use of mandible graft, which offers advantages over others that are performed such as the application of calotte, rib, iliac crest, and perone grafts, but also implies double surgery in distant anatomic areas with particular complications in each one and a longer surgical time. CONCLUSIONS: Whatever the etiology of the oroantral communication, the fistulas must be treated immediately after diagnosis. Treatment protocol must be established according to the size and location and presence or absence of infectious process. Successful treatment is achieved by this process.

Manifestaciones bucales en pacientes con sida. Estudio de 72 casos / Oral manifestations of acquired immunodeficiency syndrome. A 72 cases study

Se informan los resultados obtenidos en un grupo de 72 pacientes con síndrome de inmunodeficiencia adquirida (sida), a quienes se les realizaron biopsias, citologías exfoliativas y estudios radiográficos según el caso. Los objetivos de este estudio fueron conocer las manifestaciones bucales en pacientes con sida atendidos en el Hospital de Especialidades del Centro Médico Nacional Siglo XXI, su frecuencia según el estadio de la enfermedad y su incidencia en cuanto a edad y sexo, analizando las similitudes o diferencias con lo señalado en otros países. Los resultados obtenidos indican alta frecuencia (97 por ciento) de manifestaciones bucales en los pacientes con sida

Quistes mandibulares bilaterales: informe de un caso / Bilateral cyst of the mandible. Report of a clinical case

No es frecuente la presencia de quistes odontogénicos múltiples sin encontrarse asociados a algún tipo de síndrome. En este artículo se presenta el caso clínico de un varón de 20 años de edad y se hace una revisión bibliográfica sobre los conceptos actuales del tema

Granuloma central de celulas gigantes: informe de un caso / Central granuloma of giant cells. Report of a case

El granuloma central de células gigantes es una neoplasia benigna con una rara frecuencia de presentación, localizada en ambos maxilares, con mayor frecuencia en la mandíbula. El propósito de este artículo es documentar un caso clínico de una mujer de 32 años, revisar los conceptos actuales del tema y su manejo quirúrgico