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J Clin Periodontol. 1993 Jul;20(6):431-5.

Long-term control of diabetes mellitus and periodontitis.

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1
Department of Periodontology, University of Oulu, Finland.

Abstract

The purpose of this study was to evaluate the association between long-term control of diabetes mellitus (DM) and periodontitis. A total of 75 diabetics (Type I or II) aged 20-70 years with long-term records of their diabetic control were selected for the study. The following periodontal variables were recorded in a randomized half-mouth examination: plaque, calculus (+/-), probing depth (pd) and attachment loss (al). The mean of glycosylated hemoglobin measurements (HbAlc) over the past 2-5 years was used to indicate the long-term control of DM. The study participants were divided into well-, moderately- and poorly-controlled diabetics. An increase in the prevalence, severity and extent of periodontitis with poorer control of diabetes was observed. The extent of calculus also increased with poorer control. In a multiple regression analysis, calculus and long-term control of diabetes were significant variables when pd > or = 4 mm was used as the dependent variable. Age was a significant predictor for al > or = 3 mm but not for pd > or = 4 mm. Sex, duration and type of DM were not significant variables in the regression models. Less than 2% of sites with no calculus demonstrated pd > or = 4 mm. When calculus was present, the frequency of pd > or = 4 mm increased from 6% in the well-controlled diabetics to 16% in the poorly-controlled ones. We conclude that periodontitis in diabetics is associated with long-term metabolic control and presence of calculus.(ABSTRACT TRUNCATED AT 250 WORDS).

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