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For full functionality of ResearchGate it is necessary to enable JavaScript. Here are the instructions how to enable JavaScript in your web browser. Tooth movement rate and anchorage lost during canine retraction: A maxillary and mandibular comparison. Feb The Angle Orthodontist. To investigate the canine retraction rate and anchorage loss during canine retraction using self-ligating SL brackets and conventional CV brackets. Differences between maxillary and mandibular rates were computed.
Twenty-five subjects requiring four first premolar extractions were enrolled in this split-mouth, randomized clinical trial. Each patient had one upper canine and one lower canine bonded randomly with SL brackets and the other canines with CV brackets but never on the same side. NiTi retraction springs were used to retract canines g force. Paired t-tests were used to compare side and jaw effects. The SL and CV brackets did not show differences related to monthly canine movement in the maxilla 0.
Rates of anchorage loss in the maxilla and in the mandible also did not show differences between the SL and CV brackets. Maxillary canines showed greater amount of tooth movement per month than mandibular canines 0. SL brackets did not show faster canine retraction compared with CV brackets nor less anchorage loss.
The maxillary canines showed a greater rate of tooth movement than the mandibular canines; however, no difference in anchorage loss between the maxillary and mandibular posterior segments during canine retraction was found.
Dental skeletal effects of the metallic splinted Herbst appliance after growth spurt: The aim of this study was to evaluate dental and skeletal changes induced by the use of Herbst appliance compared to natural growth in young adults with Class II division I malocclusion with mandibular retrusion, by means of lateral oblique radiographs.