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Background: Excessive occlusal forces and occlusal trauma have been implicated as co-destructive factors for periodontitis in animal models. The objective of this study was to assess the association between occlusal trauma and periodontitis.Methods: A total of 167 cases and 205 controls were included for analysis. Occlusal trauma was the exposures of interest and was registered for cases and controls. Additional clinical co-variables were registered as well for further analysis. The association of the exposure and periodontitis was determined by the odds ratio and logistic regression analysis adjusted for confounders.Results: Amalgam restorations, pathogenic occlusion and occlusal trauma were more frequent in cases as compared to controls (P ≤ 0.05). The distribution of pathogenic occlusion and occlusal trauma was similar according to the stage and class of periodontitis. Logistic regression analysis showed a significant association for cigarette smoking, systemic conditions, amalgam restorations, pathogenic occlusion, and occlusal trauma with periodontitis (P ≤ 0.05). After adjusting for confounding variables in the model, amalgam restorations and occlusal trauma remained strongly associated with periodontitis (P ≤ 0.05).Conclusions: Occlusal trauma is strongly associated with periodontitis. Additional long-term prospective studies are necessary to further understand the impact of the occlusal condition and periodontitis. [ABSTRACT FROM AUTHOR]

Background: Periodontal disease has been associated with diabetes, but there is still controversy on the relationship between periodontal clinical parameters and glycemic control. The purpose of this study is to assess the relationship between blood glucose levels and clinical parameters of periodontal disease in individuals with diabetes. Methods: A total of 65 individuals with diabetes and 81 individuals without diabetes were included in the study. A full-mouth periodontal examination and preprandial fasting glycemia values were recorded for each individual. Glycosylated hemoglobin was only measured in patients with diabetes. A comparative analysis between groups (Mann-Whitney Utest) and a correlation analysis between glycemia and periodontal parameters were performed (Spearman test). Results: Patients without diabetes presented more teeth than individuals with diabetes (P<0.05). Patients with diabetes with periodontitis displayed loss of periodontal clinical attachment compared to patients without diabetes, but the highest value was observed in patients with periodontitis that reported a smoking habit. Furthermore, patients with diabetes with periodontitis presented higher glycemia and glycated hemoglobin values in contrast to patients with gingivitis. Patients with diabetes with hyperglycemia had a higher risk to develop periodontitis (odds ratio = 2.24; 95% confidence interval = 1.02 to 4.93). A positive correlation was observed between glycemia and clinical attachment loss (AL), whereas a negative correlation between glycemia and the number of teeth present was found (P<0.05). Conclusions: Tooth and periodontal AL were increased by hyperglycemia in individuals with diabetes. This study contributes additional evidence that diabetes could aggravate periodontal disease and affect the systemic health of individuals. [ABSTRACT FROM AUTHOR]