[Analysis and comparison of pulp vitality after total and segmental LeFort I osteotomy]

A more systematic electrical testing of pulp vitality demonstrated that the recovery rate of pulp vitality was 89.5% after 12 months of total and segmental LeFort I osteotomy. Segmental LeFort I osteotomy only imposed an interference to the speed of pulp vitality recovery. In other words, the recovery rate of pulp vitality in segmental LeFort I osteotomy was comparable to that in total LeFort I osteotomy. Maxillary segmentation inflicted a minimum damage to its adjacent teeth if clinical manipulation was meticulous and skillful. Interdental osteotomy did not exert an apparent effect on the recovery of pulp vitality and the positive rate of pulp vitality in the teeth close to it was roughly similar with that of homonymous teeth on the opposite side or their adjacent teeth on the same side.