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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Teething: signs and symptoms

Baby, bathwater, nuff said...

This review of the local or systemic signs and symptoms during the eruption of the primary teeth included 16 observational studies only 5 of which were at low risk of bias. The overall prevalence of signs and symptoms associated with primary tooth eruption in children between 0 and 36 months was 70.5% (95%CI; 54.1-84.6).

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Inferior Alveolar Nerve Block: improving anaesthetic success in patients with irreversible pulpitis

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This network meta-analysis of oral premedication to improve anaesthetic success of inferior alveolar nerve block in patients with irreversible pulpitis suggest that that oral premedication with dexamethasone, NSAIDs and Tramadol increases the success rate.

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First permanent molars: consequences of early loss

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This review of the the effects and sequela of early extraction of first permanent molars included 11 observational studies providing limited quality evidence of the consequences of early extraction. High quality prospective studies are needed.

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Dentures: techniques and materials for final impressions

shutterstock_28911784 False teeth

9 RCTs were included in this Cochrane review of different final-impression techniques and materials for complete and removable partial dentures. The available evidence for the relative benefits of different denture fabrication techniques and final-impression materials is limited and is of low or very low quality.

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Oral health literacy, oral health behaviours and outcomes

literacy

This review of the association of oral health literacy with oral health behaviours and dental treatment related outcomes included 25 studies the majority being cross-sectional in nature. The available evidence is limited and further high quality studies are needed.

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Chlorhexidine-fluoride mouthwash efficacy

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This review of the efficacy of a chlorhexidine mouthwash containing sodium fluoride compared to a chlorhexidine mouthwash alone includes 10 small short term studies that suggests the findings are similar for both preparations.

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Pacifier sucking: Limited evidence of impact on orofacial structures

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This review of the effects of pacifier sucking on orofacial structures identified 17 studies highlighting a lack of high quality evidence. While some effects are suggested these should be viewed cautiously given the quality of the evidence.

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Orthodontic treatment for class II division I malocclusion

iStock_000002259334XSmall braces on teeth

27 RCTs were identified for this Cochrane review update early v late orthodontic treatment for class II div 1 malocclusion. The main advantage of early treatment was a reduction of incisal trauma.

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Candida albicans: higher prevalence in children with early childhood caries

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This review of a possible association between oral Candida albicans and early childhood caries (ECC) included 15 cross-sectional studies.The prevalence of C. albicans in children with ECC was found to be significantly higher than in caries-free children.

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