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  • Title: Dose-response relationship between periodontal inflamed surface area and HbA1c in type 2 diabetics.
    Author: Nesse W, Linde A, Abbas F, Spijkervet FK, Dijkstra PU, de Brabander EC, Gerstenbluth I, Vissink A.
    Journal: J Clin Periodontol; 2009 Apr; 36(4):295-300. PubMed ID: 19426175.
    Abstract:
    BACKGROUND: A dose-response relationship between the amount of inflamed periodontal tissue and HbA1c level, might be indicative for a causal association between periodontitis and type 2 diabetes. AIM: To assess a dose-response relationship between the periodontal inflamed surface area (PISA), as a measure of the amount of inflamed periodontal tissue, and HbA1c levels in type 2 diabetics. MATERIAL AND METHODS: Forty consecutive dentate type 2 diabetics attending their general practitioner for regular check-up, underwent full-mouth probing pocket depth and bleeding on probing assessment. From these data PISA was calculated. HbA1c levels were retrieved from patients' medical files. The dose-response relationship between PISA and HbA1c levels was assessed using multiple linear regression analyses, controlling for factors that might influence PISA or HbA1c levels. RESULTS: The higher the PISA of type 2 diabetics was, the higher their HbA1c levels were. On a group level, an increase of PISA with 333 mm(2) was associated with a 1.0 percentage point increase of HbA1c, independent of the influence of other factors. CONCLUSION: On a group level, there is a dose-response relationship between PISA and HbA1c in type 2 diabetics. This might be an indication of a causal relationship between type 2 diabetes and periodontitis.
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