Weak evidence suggests scaling and root planing may help people with diabetes improve glycemic control Critical Summary Prepared by: Joseph Matthews DDS; Asbjorn Jokstad DDS, Ph.D; Jan Clarkson PhD, FDS RCS 

A Critical Summary of:

Efficacy of periodontal treatment on glycaemic control in diabetic patients: A meta-analysis of interventional studies

Darre L, Vergnes JN, Gourdy P, Sixou M. Diabetes & Metabolism. 2008;34(5):497-506

Published Date: 7/14/2010

This summary is published in the Journal of the American Dental Association and can be accessed at :-


  • Systematic Review Conclusion:

    Periodontal treatment may improve glycemic control in adults with poorly controlled diabetes, although the research basis for this statement is not robust.

  • Critical Summary Assessment:

    This systematic review followed a clear protocol for locating and assessing all pertinent studies. The studies were of variable quality, with only one randomized controlled trial considered to be of high quality. The review does not provide a confident basis for determining whether scaling and root planing can improve glycemic control in people with diabetes.

  • Evidence Quality Rating:


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