Derek Richards

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Derek Richards is the Director of the Centre for Evidence-based Dentistry, Editor of the Evidence-based Dentistry Journal, Consultant in Dental Public Health with Forth Valley Health Board and Honorary Senior Lecturer at Dundee & Glasgow Dental Schools. He helped to establish both the Centre for Evidence-based Dentistry and the Evidence-based Dentistry Journal. He has been involved with teaching EBD and a wide range of evidence-based initiatives both nationally and internationally since 1994.

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Sinus lift with dental implants: to graft or not to graft

Dilemma

The Scottish Dental Registrars on a recent review of dental implants combined with sinus augmentation (sinus lift): what is the merit of bone grafting?

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Temporomandibular lavage for temporomandibular disorders

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This review of TMJ lavage for temporomandibular disorders only included 5 small RCTs a majority of which were at high risk of bias. While the findings suggest a benefit from lavage this should be interpreted cautiously because of the limited quality of the available evidence.

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Dental pulp testing: insufficient evidence to evaluate clinical performance

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This review of pulp sensibility and vitality tests identified 8 studies (4 Cohorts, 4 Case-controlled) . The number of studies matching the inclusion criteria did not provide a sufficient foundation to evaluate the clinical performance of pulp vitality tests.

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Oral mucositis in cancer patients: no benefit from chlorhexidine mouthwash

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This review of chlorhexidine (CHX) for prevention & treatment of oral mucositis included 12 RCTs with 9 contribution to the meta-analysis. CHX was not significantly effective in preventing mucositis or reducing its severity.

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Chlorhexidine gels and rinses reduce dry socket after third molar extraction

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This review of the effectiveness of chlorhexidine for prevention of dry socket after third molar removal includes 18 RCTs. The finding suggest a 47% (95%CI,38-55) reduction in cases following its use.

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Anxiety and pain during dental treatment

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35 studies investigating 47 clinical groups were included in this review of the association between dental anxiety and pain during dental treatment. The findings suggest a consistent impact on pain through the entire period of dental treatment.

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Resin-bonded fixed dental prostheses: 5 year survival and complication rates

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This review of survival and complication rates of resin-bonded fixed dental prosthesis included 209 studies. The findings suggest overall survival rates of 91.3 % (95%CI; 88–93.7) . The quality of the available studies suggest that this should be interpreted cautiously.

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Caries lesions in enamel – Still drill and fill?

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This review of dental clinicians thresholds for intervention in teeth with caries included 30 studies over a 31year time span. 21% (95%CI;15%-28%) of dentists/therapists would intervene invasively for lesions confined to enamel doubling in high risk patients with little changed being noted over time.

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Oral Health in people with dementia

This study is the first of its kind from an RCT perspective which clearly shows that treating major depression in older adults using interventions in primary care settings can extend life

This review of oral health in older people with dementia included 37 mainly observational studies of limited quality. The findings suggest that oral health was generally poorer in those with dementia.

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Toothbrushes: are tapered or end-rounded filaments best?

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This review of the effect of tapered or end-rounded filament toothbrushes on clinical parameters included just 5 RCTs providing inconclusive evidence to recommend one type over another.

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