The patient's bone morphology during orthodontic treatment is an important consideration. Therefore, during orthodontic tooth movement (OTM), an imbalance between bone resorption and deposition will cause the tooth to move out of the alveolar envelope . Unfavorable consequences like gingival recession and the dehiscence of an alveolar bone plate may arise from the movement of the teeth beyond the boundary of the bone they are housing. This happened because the dense cortical bone didn't enlarge to maintain protection for the moving root. On the other hand, orthodontic force creates a complex loading pattern and biological response on the periodontal ligament (PDL). there was an increase in osteoclastic activity in a compression region within the PDL. In contrast, in the other tension region, there was an increase in osteoblastic activity and mineralization of the bone matrix.
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assessment of labial bone thickness
Timeframe: 6 months