Green synthesis method for nanoparticle synthesis offers many advantages over physical and chemical methods as it does not involve any hazardous chemicals and also it is a one-pot, and economically cheap process. In this regard, the present research describes the green synthesis of Zinc oxide nanoparticles (ZnO-NPs) using Punica granatum leaf extract. The various properties such as morphological, structural, and optical properties of green zinc oxide nanoparticles were characterized by Transmission Electron Microscopy (TEM), Fourier Transform Infrared Spectroscopy, UV-Visible spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray Spectroscopy and X-Ray diffraction (XRD). The XRD pattern revealed the crystalline nature of ZnO-NPs and the average diameter of particles is 20 nm.TEM and FESEM analysis show the spherical shape of ZnO-NPs with size ranging from 10 to 30 nm. The synthesized ZnO-NPs shows the commendable potential towards the photocatalytic degradation of Coomassie brilliant blue R-250 dye under direct sunlight irradiations. Thus, this work provides a positive step in the area of a green photocatalyst to alleviate the noxious dyes from water.

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Aim: The present study was conducted to access the prevalence of deleterious oral habits among school going children as these practices have a great impact on the dental hard and soft tissues. Methodology:This study was conducted among children aged between 7 to 13 years. The sample was selected from urban and rural schools. A closed-ended questionnaire was used in the survey for collecting the information like age, gender, area of residence and presence of deleterious oral habits. These questions were asked to parents for the habits like bruxism, tongue thrusting, digital sucking, mouth breathing, nail biting and lip biting. Chi-square test compared the frequency of oral habits in relation to age, sex and area. Statistical tests were used at a significance level of p<0.05. Results:It was noticed that bruxism (14.4%) was most common habit followed by mouth breathing (12.6%), digital sucking (9.2%), nail biting (8.3%), lip biting (8.1%) and tongue thrusting (7.2%). Bruxism (4.7%) and tongue thrusting (3.4%) had the highest occurrence in (9 to 11 years) group. Digital sucking (3.6%) and mouth breathing (6.3%) was mostly observed among younger age group (7 to 9 years). However nail biting (4.3%) and lip biting (4.7%) was commonly noticed in older sample. Conclusion:The study observed that bruxism was most frequent habit among children. There was also a variation in the occurrence of oral habits in relation to age.