Preliminary recognition of orthodontics and bony dehiscences and fenestrations

Orthodontic treatment is based on the teeth root movement in aveolar bone, the ability and scope of movement affect treatment results. Traditionally, there is no method to evaluate aveolar bone three dimensionally, and no orthodontic requirement to evaluate bony dehiscences and fenestrations. In recent years, CBCT gives opportunity to examine alveolar bone three dimensionally, more and more orthodontic researches focused on bony dehiscences and fenestrations, which cause much attention and doubtfulness. There is no exact definition of bony dehiscences and fenestrations, also no 3D diagnostic criteria were established by now. Orthodontists need to recognize bony dehiscences and fenestrations comprehensively. We should establish orthodontic diagnostic standard and, at the same time, improve our treatment accuracy to avoid periodontal impairment. Key words: Fenestration; Dehiscence; CBCT