Preparation and physicochemical analysis of Co3O4/SnO2/TiO2 hybrid ternary systems with enhanced photocatalytic activity under solar light irradiation

Various combinations of TiO2 and SnO2 in binary composites of SnO2/TiO2 and (2-10 wt. %) Co3O4 on SnO2/TiO2 of ternary composite Co3O4/SnO2/TiO2 with were prepared. All the photocatalysts shows anatase crystalline phase and some of appropriate peaks of SnO2 and Co3O4 peaks also present in binary and ternary systems, which is confirmed by X-Ray diffraction analysis. UV-Vis DRS indicated that all ternary composite Co3O4/SnO2/TiO2 showed strong response in visible region and pure materials shows representative band positions. The molecular structure of M-O linkages (Ti-O, Co-O and Sn-O) is studied by FTIR analyses. Other physicochemical techniques such as SEM and PL also confirm the surface property and electronic excitation state. Ternary composite Co3O4/SnO2/TiO2 demonstrates the highest decomposition for simultaneous degradation of reactive orange 30 (RO 30) under solar light.</jats:p

Malocclusion in Children with and without Cleft Palate - A case - Control Study

There is a principle agreement that malocclusion is a major health concern as it is the third most common oral disease, next only to dental caries and periodontal disease. As it is a major challenge for even normally abled children to handle these problems, questions arise as to the difference in the extent or severity of manifestation of malocclusion in the oral cavity of patients with cleft palate. The study aims to determine the prevalence of malocclusion in children with and without cleft palate. A sample size of 18 case sheets was reviewed for malocclusion in children with cleft only. The data was obtained from record management software of a private dental institute. Data was analysed using SPSS software, and Mann-Whitney was done. The results were recorded. Children with cleft palate showed higher incidence of malocclusion when compared to children without cleft palate. Within the limitations of the present study, children with cleft palate (case) showed a higher incidence of malocclusion than the control group.</jats:p