This review of the efficiency of the vibrating devices in accelerating orthodontic tooth movement identified 6 RCTs the majority being short term and at high risk of bias. The RCTs suggested no difference with the use of vibrational devices.
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10 trials were included in this review of the effectiveness of Hawley retainer following orthodontic treatment providing low quality evidence that performance was similar to other retainers.
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15 studies involving 1722 patients were included in this Cochrane review update on orthodontic retention. However, there was insufficient high quality evidence to make recommendations on retention procedures.
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