Digital imaging for caries: direct digital sensors or photostimulable phosphor plates?

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This review compared direct digital sensors and indirect photostimulable phosphor plates for the detection of caries. Six studies were included in the review with 4 contributing to the meta-analysis. There was no significant difference between the two systems and they displayed good specificity and limited sensitivity.

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Composite restorations: no difference in longevity with direct or indirect placement

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This review of the clinical performance of direct and indirect resin composite restorations in permanent teeth included 9 small RCTs . The findings suggest no difference in clinical longevity but the evidence is limited.

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All-ceramic crowns: failure rates higher in posterior teeth

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This review of the failure rates of all-ceramic crowns included 14 (9 prospective, 5 retrospective) studies. Using a broad definition of failure there was little difference between rates in anterior and posterior crowns.

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Oral health advice for people with serious mental illness: lack of evidence about effectiveness

The research found that mindfulness helped more with the negative symptoms of schizophrenia

This Cochrane review update of oral health advice for patients with serious mental illness only included 3 RCTs. The identified studies were of low to moderate quality providing limited evidence to support decision making about the effectiveness of oral health advice for people with serious mental illness.

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Alveolar ridge preservation techniques: evidence limited

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This review of alveolar ridge preservation techniques addressed two questions. They main one of benefit over unassisted healing only included 9 small studies of short duration providing limited evidence to support its use.

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Fibre posts: failure rates and restoration type

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This review of complication in teeth restored with fibre posts only included 4 small studies providing little evidence to inform clinical practice

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Tooth extraction: factors affecting anxiety and fear

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This review of factors affecting fear and anxiety in adult patients undergoing tooth extraction included 16 studies and identified a number of factors associated with anxiety although there are concerns over the quality of the available studies.

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Composite restorations: direct or indirect placement?

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Only 3 RCTs could be identified for this review of the long-term performance of direct versus indirect composite inlays/ onlays in posterior teeth. the limited quality of the studies provide insufficient evidence to recommend direct over indirect techniques.

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Endocrown restorations – little evidence to support this approach

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This review of endocrown restorations identified 8 studies only 3 of which were clinical. These 3 clinical studies were very small and two of them were retrospective providing very low quality evidence to support their effectiveness.

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Third molars: insufficient evidence for removal of impacted asymptomatic disease-free teeth

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This update of an earlier Cochrane review comparing retention or extraction of of asymptomatic disease-free impacted third molars only identified 2 studies of low to very low quality evidence providing insufficient evidence to inform practice.

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