Estudo comparativo entre a fixação interna e a fixação in-termaxilar no reparo ósseo de fraturas mandibulares por meio de imagem radiográfica digital.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

Conventional radiographic evaluation of fracture healing is not a reliable method, because it depends on the examinators experience and the quality of the exam. Therefore, serial images differing in density, contrast and geometrical projection can lead to a misdiagnosis on the postoperative fracture healing. Even in good quality images, little changes in calcified tissues often cant be visualized, because of its little sensibility and because of the limited human sight. The use of more sensitive and objective methods could increase the accuracy of this evaluation. This study intended to compare, by digitalized panoramic radiography, the mandible fracture healing after two different types of treatment: open reduction with internal fixation (control group) and closed reduction with intermaxillary fixation (test group). It was taken three postoperative radiographs (within a week, a month and three months after treatment), which were digitalized (600 dpi, 8 bits) and adjusted in brightness and size in Photoshop software. Then these images were evaluated by three different methods in ImageTool software: visual analysis, measurement of gray levels and digital subtraction. The results revealed greater areas of new bone formation in the internal fixation group, in all the evaluated times. Thus, open reduction with internal fixation resulted in more rapid fracture healing than closed reduction with intermaxillary fixation.

ASSUNTO(S)

internal radiografia dentária digital fraturas mandibulares radiography subtraction technique fixação interna de fraturas odontologia dental técnica de subtração fracture fixation digital mandibular fractures jaw fixation techniques técnicas de fixação da mandíbula

ACESSO AO ARTIGO

Documentos Relacionados