No abstract

This study indicated a high prevalence of caries and related risk factors such as low mother's educational level and inappropriate oral health behavior among kindergarten children in Vietnam.

Background: To assess the prevalence of the symptoms and signs of temporomandibular disorders (TMDs) and determine the prevalence of TMDs among elderly Vietnamese aged 65-74 years old. Methods: A cross-sectional study was conducted among 258 participants aged 65-74 years old (128 females and 130 males) using two strategies for TMD diagnosis: a clinical examination of the temporomandibular joint and its associated structures using the Diagnostic Criteria for Temporomandibular Disorders Axis I; and a set of 14 questions regarding TMD symptoms to obtain anamnestic data. Results: The prevalence of TMD symptoms was: headache 49.6%; temporomandibular joint noise 28.0%; orofacial pain 25.2%; jaw locking 3.1%; 62.5% of participants had at least one TMD symptom. Headaches were more prevalent in females than males (p=0.009) and rural than urban residents (p<0.001). The most frequent signs were temporomandibular joint crepitus (50.4%), clicking (48.1%) and mouth-opening deviation (37.6%). Temporomandibular joint crepitus and mouthopening deviation were more frequent among rural than urban (p=0.024 and p<0.001, respectively). TMD was found in 56.6% of the total sample. Of the TMD sufferers, 37.6% were diagnosed with disc displacement, 34.9% with degenerative joint disease, 3.5% with myalgia and 1.2% with arthralgia. Conclusions: More than half of elderly Vietnamese have at least one TMD symptom. TMD sounds were the most common clinical sign of TMD. There were no differences between the genders or place of residence and TMD diagnosis. Disc displacement and degenerative joint disease were most prevalent among elderly Vietnamese.

Objectives: This study aimed (1) to determine the prevalence of anxiety, depression, and TMJ osseous changes in elderly Vietnamese according to sex and residence, and (2) to investigate the association of temporomandibular joint (TMJ) osseous changes with anxiety, depression, and limitation of mandibular function. Methods: Elderly people living in Danang, Vietnam were recruited. Participants were screened for anxiety and depression using the self-reported 7-item Generalized Anxiety Disorder Scale (GAD-7) and 9-item Patient Health Questionnaire (PHQ-9), respectively. Participants then self-rated the limitation of their mandibular function using the 20-item Jaw Functional Limitation Scale (JFLS-20) questionnaire. TMJ osseous changes (erosion, flattening, osteophytes, and sclerosis) were evaluated using digital orthopantomography. Results: Of 179 participants aged 65 to 74 years, 17.9% and 35.8% had anxiety and depression symptoms, respectively. Compared with urban residents, rural residents had higher prevalence of anxiety (23.3% vs 12.4%, p = 0.009) and depression (46.62% vs 24.7%, p = 0.019). The prevalence of TMJ osseous changes was 58.1%. The most common TMJ osseous change was flattening (41.3%), followed by erosion (34.6%), sclerosis (16.2%), and osteophytes (7.8%). Participants with or without TMJ osseous changes were comparable in terms of GAD-7 score, PHQ-9 score, and JFLS-20 score and sub-scores. Conclusions: Anxiety and depression and TMJ osseous changes were prevalent in elderly Vietnamese. Rural residents had higher prevalence of anxiety and depression than urban residents. TMJ osseous changes were not associated with anxiety, depression, or limitation of mandibular function.

The alteration of craniofacial structures was significantly associated with TMD signs among elderly Vietnamese. The higher number of lost occlusal support zones, the more significant the changes to craniofacial structures.