Objectives: The aim of this study was to compare the risk factors for caries between patients with primary Sjogren syndrome (SS) and those with non-Sjogren syndrome (NSS) salivary hypofunction and to identify the prevalence of incisal or cervical/root caries in each group.
Study Design: This was a retrospective, cross-sectional study conducted at a single center between 2012 and 2015 for assessment of patients with possible SS. Two-hundred and twenty-five (225) patients (99 SS and 126 NSS) participated in the study.
Results: Student t test and Wilcoxon's rank sum test were used to evaluate group differences in continuous variables and the χ test was used to determined differences in categorical variables. Significant univariate associations were further assessed by using multivariate ordinal regression models. Patients with SS were more likely to have a greater number of total caries (odds ratio [OR] 1.72 [1.03-2.88]; P = .04). And a focus score greater than 1/4 mm was associated with greater number of total caries (OR 2.88 [1.05, 7.93]; P = .04]. Adjusted analysis for salivary flow did not show a significant association between stimulated or unstimulated salivary flow or glandular-specific salivary flow and the total number of carious lesions.
Conclusions: Patients with salivary hypofunction secondary to SS do have a greater caries risk compared with patients with salivary hypofunction caused by other factors. In this study cohort, this finding was not associated with salivary flow rates.
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