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Comment & Response |

Hemoglobin A1c Levels Among Patients With Diabetes Receiving Nonsurgical Periodontal Treatment

Jean-Noel Vergnes, DDS, PhD1
[+] Author Affiliations
1Dental Faculty, Toulouse University Hospital, Toulouse, France
JAMA. 2014;311(18):1920-1921. doi:10.1001/jama.2014.2225.
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To the Editor The study by Engebretson and colleagues1 adds knowledge about the effect of periodontal treatment on glycemic control in patients with type 2 diabetes and moderate to advanced chronic periodontitis. The authors of this multicenter randomized study (the Diabetes and Periodontal Therapy Trial [DPTT]) concluded that nonsurgical periodontal therapy did not improve HbA1c values. Despite its high internal validity, this trial raises some important interpretation issues, particularly regarding the interventions that were compared.

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May 14, 2014
Steven P. Engebretson, DMD, MS, MS; Leslie G. Hyman, PhD; Bryan S. Michalowicz, DDS, MS
1Department of Periodontology and Implant Dentistry, New York University College of Dentistry, New York, New York
2Department of Preventive Medicine, Stony Brook University School of Medicine, Stony Brook, New York
3Department of Developmental and Surgical Sciences, University of Minnesota, Minneapolis
JAMA. 2014;311(18):1921-1922. doi:10.1001/jama.2014.2231.
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