Avaliação do tratamento de defeitos de rebordo alveolar com regeneração ossea guiada : estudo histometrico em cães

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

The aim of the present study was to histometrically evaluate the bone regeneration obtained in surgically created ridge defects in dogs treated or not with guided bone regeneration. Nine female mongrel dogs were included. All molars in the mandible were extracted. After three months, a bone defect was surgically created bilaterally in the mandible with dimensions of approximately 12mm mesiodistally and 8mm apicocoronally and 8mm buccolingually. The defects were randomly assigned to one of two groups: non-resorbable membrane (test) and no membrane (control). Four months later, the animals were sacrificed and the specimens were routinely processed for decalcified sections. The histomorphometric analyses were used to determine the height, the width and the area of new bone and the percentage of mineralized tissue. Statistically significant difference was found for the area (215,62 + 42,44; 156,33 + 46,85mm2), the height (11,59 + 1,83; 8,64 + 1,42mm) and the percentage of mineralized tissue (74,19 + 7,74; 81,51 + 6,07%), for test and control group, respectively (p<0,05). Within the limits of the present study, it was concluded that the use of non-resorbable membrane may positively influence bone regeneration, providing a superior amount of newly formed bone and delay the maturation

ASSUNTO(S)

membranas (biologia) periodontia

ACESSO AO ARTIGO

Documentos Relacionados