ABSTRACT
INTRODUCTION: Oral health is an integral part of general health. Dental problems can be avoided if identified at an early stage. There is no data on oral health status of school going children in Karnataka state's Shimoga city. AIM: To evaluate oral health status of school going children among 5-15-year-old in Shimoga city. MATERIALS AND METHODS: A cross-sectional study was conducted among 1458 government and private school children aged 5-6, 9-10 and 14-15 years. Dental caries (DMFT and deft Index), oral hygiene status (OHI-S Index) and dental fluorosis (Dean's Fluorosis Index) according to WHO diagnostic criteria (1997) were assessed. Data was evaluated using ANOVA and t-test by SPSS (IBM statistical software version 21.0.) at a level of 5% significance. RESULTS: The deft among 5-6-year-old children was 3.36±3.511, deft and DMFT among 9-10-year-old was 2.55±2.497 and 0.45±0.996 respectively and DMFT among 14-15-year-old was 1.34±1.832. The caries prevalence among 5-6-year-old was 68.8%, 9-10-year-old was 77.2% and 14-15-year-old was 48.9% and overall prevalence of dental caries was 65.3% which was statistically significant. Among 9-10-year-old oral hygiene was good in 85.4%, fair in 13.5% and poor in 1% of school children and among 14-15-year-old oral hygiene was good in 77.4%, fair in 22.2% and poor in 0.4%. Overall 81.7% of children had good oral hygiene. The prevalence of dental fluorosis was 14.5%. CONCLUSION: The children from government school were found to be less caries free than the private school children, but the difference was not significant. Oral hygiene status is found to be good among both the private and government school children. So the dental awareness is required among children of government school.
ABSTRACT
Traumatized anterior teeth need quick, aesthetic and functional repair. Along with aesthetics, the physical properties of restorative material should also be considered for long-lasting restoration. Fibre reinforcement has been tried as a newer technique to improve the physical properties of composite materials. Hence, this study was carried out to evaluate the fracture resistance of microhybrid composite, nano composite and fibre-reinforced composite used for restoration of incisal edge of fractured maxillary central incisors. Extracted permanent maxillary central incisors were randomly divided into four groups of 10 samples each: control group with intact teeth (Group A), microhybrid composite (Esthet X; Dentsply/Caulk, Milford, DE, USA) (group B), nano composite (Ceram X; Dentsply/Caulk) (group C) and microhybrid composite reinforced with polyethylene fibre - flowable composite unit [(Ribbond THM; Ribbond Inc., Seattle, WA, USA; Esthet X flow; Dentsply/Caulk)] (group D). The fracture resistance was measured under universal testing machine at a speed of 1mmmin(-1) with the loading tip of 2mm diameter. The samples were further evaluated for mode of fracture under stereomicroscope at 3.5× magnification. The data were analysed using one-way anova and Tukey's test for fracture resistance. Group A and group D exhibited significantly higher fracture resistance than group B and group C. No significant difference was found between group B and group C as well as between group A and group D. Fisher's exact test for the mode of fracture revealed no statistical significance. It was concluded that fibre reinforcement of composite could be an alternative technique for restoration of fractured anterior teeth for better aesthetics and longevity of the restoration.
