Gum disease treatment does not improve HbA1c

As well-controlled diabetes is associated with less severe chronic periodontitis, researchers randomised 500 people with type 2 diabetes to scaling, root planning and chlorhexidine oral rinse at baseline, with supportive therapy at three and six months.

HbA1c levels did not change significantly between baseline and three and six months in both the control and treatment groups.

However, periodontal measures of probing depth, clinical attachment loss, bleeding on probing all improved in the treatment group.