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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Sleep bruxism: risk factors

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This review of risk factors for sleep bruxism identified 9 studies involving a total of 12,454 patients. Strong associations were found for sleep bruxism, GERD and a gene related to serotonergic neurotransmission.

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Nonsurgical periodontal treatment: adjunctive antibiotic use in diabetics

Participants ranked the clinical instruments most highly

This review of adjunctive use of systemic antibiotics in nonsurgical periodontal treatment of diabetics identified 12 small RCTs. No additional benefit was seen with antibiotic use

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Regenerative endodontic treatment or MTA apical plug in teeth with pulp necrosis and open apices?

By Drs. Ken Hargreaves and Obadah Austah, Dept of Endodontics, University of Texas Health Science Center at San Antonio - Ken Hargreaves, CC BY 3.0 us, https://commons.wikimedia.org/w/index.php?curid=30784169

This review of regenerative endodontic treatment (RET) or mineral trioxide aggregate (MTA) apical plug (MAP)in the treatment of teeth with pulp necrosis and open apices used broad inclusion criteria. 144 studies were identified suggesting promising outcomes. However the quality of the available evidence is very low and more high quality research is needed.

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Regenerative endodontics in non-vital immature permanent teeth

By Drs. Ken Hargreaves and Obadah Austah, Dept of Endodontics, University of Texas Health Science Center at San Antonio - Ken Hargreaves, CC BY 3.0 us, https://commons.wikimedia.org/w/index.php?curid=30784169

This review of regenerative endodontics for non-vital immature permanent teeth included 14 studies. Although suggesting good outcomes overall they were of low quality with a high risk of bias. Larger high quality studies are needed.

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Sleep bruxism: validity of diagnostic tools

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This review of diagnostic tools for sleep bruxism included 8 studies the majority being at high risk of bias. Portable diagnostic devices had best validity but quality of evidence was very-low to moderate.

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Impacted canines: localisation with conventional or cone beam radiographs?

shutterstock_63657280 - Panoramic x-ray machine

This review comparing cone-beam computed tomography (CBCT) and conventional radiography (CR) for localising impacted canines included 8 mainly cross-sectional studies and suggests that CBCT is more accurate. However the quality of the studies is low and further research is needed.

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Molar incisor hypomineralisation: prevalence

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70 observational studies were included in this molar incisor hypomineralisation (MIH) prevalence. The overall prevalence of MIH was estimated to be 14.2%(95%CI; 12.6–15.8).

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Orofacial pain: pharmacological treatments

The authors sought to review available literature relating to SSRI withdrawal syndromes

This review of pharmacological management of orofacial pain included 41 studies. Evidence suggests that for TMD joint pain NSAIDs, corticosteroids and hyaluronate injections are beneficial and that clonazepam and capsaicin are effective for burning mouth syndrome.

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Motivational interviewing for periodontal disease

Motivational interviewing works on facilitating and engaging intrinsic motivation within the client in order to bring about behaviour change.

This review of motivational interviewing (MI) as an adjunct to periodontal treatment only included 5 papers reporting 4 studies. The review provides limited evidence to suggest that MI might have a positive effect but more higher quality research is needed.

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Khat chewing has an adverse effect on periodontal tissues

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12 observational studies were included in this review of the effect of khat chewing on periodontal tissues. The available evidence is of limited quality but it suggests that khat use has an adverse effect on periodontal status.

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