The aim of this study was to associate minor psychiatric disorders (general health) and quality of life with temporomandibular disorders (TMD) in patients diagnosed with different TMD classifications and subclassifications with varying levels of severity. Among 150 patients reporting TMD symptoms, 43 were included in the present study. Fonseca's anamnestic index was used for initial screening while axis I of the Research Diagnostic Criteria for Temporomandibular Disorders (RDC-TMD) was used for TMD diagnosis (muscle-related, joint-related or muscle and joint-related). Minor psychiatric disorders were evaluated through the General Health Questionnaire (GHQ) and quality of life was assessed using the World Health Organization Quality Of Life-Brief Version (WHOQOL-BREF). An association was found between minor psychiatric disorders and TMD severity, except for stress. A stronger association was found with mild TMD. Considering TMD classifications and severity together, only the item "death wish" from the GHQ was related to severe muscle-related TMD (p = 0.049). For quality of life, an association was found between disc displacement with reduction and social domain (p = 0.01). Physical domains were associated with TMD classifications and severity and the association was stronger for muscle and joint-related TMD (p = 0.037) and mild TMD (p = 0.042). It was concluded that patients with TMD require multiple focuses of attention since psychological indicators of general health and quality of life are likely associated with dysfunction.
Background/Aims: This study aimed to identify the microbiota of different layers of dentinal caries by using a culture-independent molecular biology approach. Methods: DNA was extracted from samples taken from 3 distinct layers (superficial, middle and deep) of advanced occlusal caries and analyzed for the presence and relative levels of 28 oral bacterial species/phylotypes using a reverse-capture checkerboard hybridization assay. Results: The mean number of target taxa per layer was 7.7 (±3.96) in the superficial, 7 (±3.4) in the middle, and 6.3 (±3.04) in the deep layer. No statistical significance was observed for these differences (p = 0.36). Overall, the most prevalent taxa in the 3 layers were Atopobium genomospecies C1 (72.5%), Fusobacterium nucleatum (69%), Lactobacillus casei (68%), Veillonella species (55%) and Lactobacillus fermentum (52%). No differences were found in the prevalence rates of the most frequent target species in the 3 layers. The most prevalent taxa found at levels above 105 in the advanced front line of deep-dentin caries were Atopobium genomospecies C1, F. nucleatum, Streptococcus mutans, Streptococcus species and Veillonella species. Conclusion: The present results revealed that the prevalences of several established or candidate caries pathogens do not differ significantly in the different zones of dentinal caries lesions. The finding that some as-yet-uncharacterized species and novel species were found in high frequencies join other molecular studies to include them in the set of candidate caries pathogens.
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