This Cochrane review of orthodontic treatment for class II div 2 malocclusion updates the previous 2006 version. No RCTs or CCTs were identified so It is not possible to provide any evidence-based guidance to recommend or discourage any type of orthodontic treatment to correct Class II division 2 malocclusion in children.
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This well conducted and reported trial compared customised orthodontic system against traditional methods. The customised system was not associated with any significant reduction in treatment duration, and the treatment outcomes were comparable with both systems.
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31 observational studies were included in this review of breastfeeding and malocclusion . This findings suggests that it may be protective against posterior crossbite and class II malocclusion. However as teh studies are largely retrospective the findings should be interpreted with caution.
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This review comparing cone-beam computed tomography (CBCT) and conventional radiography (CR) for localising impacted canines included 8 mainly cross-sectional studies and suggests that CBCT is more accurate. However the quality of the studies is low and further research is needed.
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This updated Cochrane review comparing open v closed surgical approaches for palatally displaced canines includes 3 studies involving 146 patients with the available evidence suggesting that neither surgical technique for exposing canine teeth is superior.
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4 RCTs were included in this review of interceptive primary canine extraction. They provide some limited evidence that extractions may facilitate permanent canine eruption but the study quality is low.
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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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24 studies were included in this review of compliance with removable orthodontic appliance treatment. Objectively measured wear was considerably lower than stipulated wear time among all appliance types in the included studies.
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This review of clear aligners for orthodontic treatment only identified 4 small studies of limited quality providing little evidence to support their effectiveness.
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4o studies were included in this scoping review of orthodontic outcomes used with cleft lip and palate patients. The majority (68%) relate to morphological features of maloclussion with on 3 addressing quality of life issues and 2 health service utilisation.
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