Gingival retraction methods and their impact on gingival health?

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This review looked at the impact of gingival retraction on periodontal health. Only 10 small studies were available so which no method seems significantly superior the quality of the available evidence is limited.

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Silver Diamine Fluoride can arrest caries in children

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This review of silver diamine fluoride (SDF) to arrest caries included 19 studies and suggest that 38% SDF can arrest 81% ( 68-89%) of active caries. . However none of the available studies was at low risk of bias so the findings should be interpreted cautiously.

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Mandibular implant overdentures: effect on nutritional status may be limited

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This review considered the effect of mandibular implant overdentures on the nutrition and nutritional status of older adults. Six small studies were included, overdentures were not seen to have an effect on BMI, albumin or vitamin B12 six months
 after treatment.

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Tooth whitening: Tray-delivered gels showed a slightly better whitening efficacy

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This review of tooth whitening included 13 randomised studies and suggests that tray-delivered carbamide peroxide gel provided better whitening efficacy than HP-based products. However the available evidence is very heterogeneous and short term.

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Do analgesics before dental treatment reduce post treatment pain in children?

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This Cochrane review found 5 RCTs of pre-op analgesics prior to dental treatment for children under local anaesthetic. The evidence as insufficient to determine a benefit but there may be a benefit prior to orthodontic band placement. Further high quality studies are needed.

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Third molar removal: antibiotics reduced risk of dry socket

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This review of antibiotic prophylaxis for the removal of third molars included 22 RCTs and suggest that antibiotic use lowered the infection risk by 60%. The number pf patients needed to treat to prevent one infection was 14 (95%CI;11-19).

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Anterior open bite might be corrected with crib therapy

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This review of the use of habit-interception appliances to improve anterior open bite (AOB) included 11 controlled studies only 2 of which were randomised. The limited available evidence suggests that crib therapy could be considered as an effective treatment for the correction of AOB in growing patients.

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Periodontal disease and glycaemic control in diabetics

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This review of the impact of periodontal treatment in diabetics in this latest in a long list of publications on this topic . This review only includes 7 trials and supports the effectiveness of periodontal therapy in glycemic control in type 2 diabetic patients and periodontitis. Other more detailed reviews are available.

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Dental Implants: survival rate in irradiated patients

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40 studies were identified for this review of dental implants in irradiated patients. While survival rates were good, they were lower than in non-irradiated areas. As the majority of the included studies were retrospective the findings should be viewed cautiously.

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Oral leukoplakia: very limited evidence for treatments

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The aim of this Cochrane review was to assess the effectiveness, safety and acceptability of treatments for oral leukoplakia in preventing oral cancer.

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