Corrección de plano oclusal mediante implantes oseointegrados / Correcting the occlusal plane through osseointegrated implants

Se presenta en el siguiente artículo un caso donde la migración dentaria ha generado como resultado un plano oclusal descendido. Una vez que se ha decidido resolver el caso mediante terapia con implantes, se describen las maniobras que se habrán de realizarpreviamente en el tejido óseo de modo de acondicionarlo, teniendo en cuenta que de éstas dependerá el éxito del tratamiento. La ubicación tridimensional del implante utilizando el proyecto rehabilitador como base, será fundamental para restablecer lafuncionalidad y la estética, con un plano en correcta ubicación.

This paper shows a case in which tooth migration has resulted in a lowered occlusal plane. Upon deciding to solve the case using implant therapy, the techniques to be used for the preparation the bone tissue are described, taking into consideration that the success of the treatment will depend on said techniques. The three-dimensional location of the implant in the rehabilitated tissue, will be basic for the reestablishment of functionality and aesthetics, with a plane that is properly located.

Clinico-radiographic examination of odontogenic myxoma with displacement of unerupted upper third molar: review of the literature / Examen clínico-radiográfico de un mixoma odontogénico con desplazamiento de un tercer molar no erupcionado: revisión de la literatura

Odotogenic myxoma is a benign tumor which presents in 3 percent to 6 percent of all odontogenic tumors. According to the WHO classification, multiple radiolucent areas of varying size, separated by straight or curved bony septa with poorly defined borders are the radiologic characteristics of the condition. We report the case of maxillary odontogenic myxoma in a 21 year old man. The radiological feature of the current case was interesting, due to the size of the lesion and severe displacement of the upper third molar.

El mixoma odontogénico es un tumor benigno que se presenta en el 3 por ciento a 6 por ciento de todos los tumores odontogénicos. De acuerdo a la clasificación de la OMS, las características radiológicas de esta patología presentan múltiples áreas radiolúcidas de tamaño variable, separadas por tabiques óseos rectos o curvos, con márgenes mal definidos. Presentamos un caso de mixoma odontogénico maxilar en un hombre de 21 años. La característica radiológica es interesante, debido al tamaño de la lesión y al desplazamiento severo del tercer molar superior.

Tratamiento quirúrgico de caninos mandibulares bilaterales transmigrados / Surgical treatment of bilateral mandibular transmigrated canine

La migración de caninos inferiores es un fenómeno poco común. Su incidencia es menor que incluidos maxilares y son frecuentemente encontrados en jóvenes. Solamente caninos, segundos premolares y terceros molares incluidos migran a lugares ectópicos en su desarrollo y dientes incluidos ectópicos son, en la mayoría de los casos, asintomáticos. La etiología es compleja y poco descrita en la literatura. Un canino es considerado un diente migrado cuando, horizontalmente, más de la mitad del diente atraviesa la línea mediana. Este artículo reporta un caso clínico, con tratamiento quirúrgico de exodoncia de caninos bilaterales incluidos, horizontalmente en la región de la sínfisis. Se observó que la exodoncia es la conducta operatoria más frecuente, presentando en este caso buenos resultados.

Migration of canine mandibles is a very uncommon phenomenon. Their incidence is less frequent than maxillary canines and present frequently in young people. Only canines, second bicuspid and third molars can migrate to ectopic areas in their development and ectopic embedded teeth are, for the most part asymptomatic. The etiology is complex and with poor information. A canine is considered a migrating tooth when it penetrates horizontally the middle line of the mandible. This paper reports a case with surgical treatment of dental extraction, including horizontal bilateral canines in the symphysis region. It was observed that dental extraction is a more frequent treatment and presented with good results in this case.

Dente em cavidade nasal de etiologia não traumática: apresentação rara / Tooth in nasal cavity of non-traumatic etiology: uncommon affection

Introdução: A presença de dente supranumerário ou ectópico não é fato incomum, sendo estimado ocorrer em 1% da população geral. Contudo, um dente em cavidade nasal constitui-se em evento raro, independente da etiologia. Objetivo: Relatar um caso de dente em fossa nasal cuja etiologia não foi traumática nem iatrogênica. Relato de Caso: Paciente jovem apresentou imagem radiopaca em fossa nasal quando em propedêutica odontológica. Durante investigação otorrinolaringológica, verificou-se tratar-se se dente, a despeito da inexistência de qualquer trauma. Foi realizado tratamento cirúrgico sem intercorrências. Comentários Finais: A presença de dente em fossa nasal, apesar de infrequente, deve receber atenção especial. O triângulo perigoso da face é local potencial de complicações, portanto, a abordagem deve ser cirúrgica, mesmo que o paciente esteja assintomático.

Introduction: The presence of ectopic supernumerary tooth is not an uncommon fact, and the estimate is that 1% of the population is affected. However, a tooth in nasal cavity is a rare event, independently of the etiology. Objective: To report a case of a tooth in nasal cavity whose etiology is neither traumatic and nor iatrogenic. Case report: The young patient presented with a radiopaque image in nasal cavity during dental propedeutics. Upon otorhinolaryngological exams, a tooth was identified, in spite of no existence of any trauma. Surgical treatment was carried out without complications. Final Comments: The presence of tooth in nasal cavity, in spite of being uncommon, must be given special attention. The dangerous triangle of the face is a potential place of complications, therefore, the approach must be surgical even in asymptomatic patients.

Transmigration of mandibular second premolar in a patient with cleft lip and palate: case report

Disturbances involving abnormalities in tooth eruption are named ectopia. Transmigration is the name assigned to ectopia in the presence of teeth in areas distant from the alveolar process. Initial angulation of the tooth bud of the second premolar and premature loss of permanent mandibular 1st molars can influence the distal migration of the second premolar. Some studies have observed that ectopic teeth can be found in a variety of places around the oral cavity and also in other areas of the human body. There are records of teeth in the maxillary sinus, mandibular condyle, coronoid process, mandibular angle, orbit, palate, mentum and also the skin. The prevalence of tooth abnormalities is higher in children with cleft lip and palate compared to children without clefts. This paper presents a case report of migration of the mandibular left second premolar in a patient attending the Hospital for Rehabilitation of Craniofacial Anomalies of the University of São Paulo (HRAC/USP), Brazil. Migration of the mandibular left 2nd premolar was confirmed by 8 panoramic and 1 periapical radiographs obtained during patient's treatment between 1978 and 2002, which were available in the files of the Department of Dental Radiology of HRAC/USP. It can be assumed that distal migration of the mandibular left 2nd premolar is not associated with presence of cleft lip and palate; observation of these two events in a same patient is rare, since no similar reported cases were found in the literature.