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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14 studies, 7 of which were RCTs were included in this review of min-screw implants to prevent anchorage loss during orthodontic treatment. The findings suggest a small but clinically important reducing in anchorage with mini-screw use. However more high quality studies and information on adverse effects is needed.
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The Scottish Dental Registrars on a recent systematic review of the effects of self-ligating brackets and conventional brackets on the periodontal status of adolescents undergoing orthodontic treatment.
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This review of the early treatment of class III malocclusion identified 15 studies (9 RCTs, 6 CCTs) providing moderate quality evidence that early treatment with a facemask results in positive improvement for both skeletal and dental effects in the short term.
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This review of the effect of orthodontic extractions on the angulation of third molars included only 14 retrospective studies. This provides very low quality evidence of any effect
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14 trials were included in this Cochrane review of non-pharmacological interventions for orthodontic pain. The findings were inconclusive although there is some evidence that low-level laser therapy may help.
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