All the three groups showed a statistically significant amount of remineralization. However, because of the added benefit of fluoride (NaF 0.2%), CPP-ACPF (Tooth Mousse-Plus) showed marginally more amount of remineralization than CPP-ACP (Tooth Mousse).

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Timolium possesses comparatively low stiffness, better strength and behaves as an intermediate between stainless steel and TMA and hence can be tried for almost all clinical situations. Low springback and high formability of titanium-niobium archwire allows creation of finishing bends and thus it can be used as finishing archwire.

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Ultra fine grained copper is produced by equal channel angular processing (ECAP) routes.Multiple passing through the ECAP die reveals high grain refinement in first few passes.Transmission electron microscopies in to the samples reveal a grain refinement of 150 μm to 500 nm sized grains after 4 passes. Mechanical properties measuerement shows that the severe plastic deformation has improved the structural strength to 410 MPa. Structure property study confirms the Hall petch strengthening mechanism operational during the deformation process. The effect of initial microstructral inhomogeniety is investigated and it is found to have marginal influence in the grain refinement of the multiple pass ECAP. Process modeling study using finite element models reveal the developed shear strain and stress fields during the deformtion process.

Abstract:The study was conducted to evaluate the effect of natural antioxidants in the development of caries in the enamel of deciduous teeth. The herbal formulation contains antioxidant potential herbs which were formulated as tooth paste. 24 deciduous teeth were selected for the study and divided in to 2 groups. Acid-resistant varnish was applied on the teeth, leaving only one area of 5 mm x 1 mm of dental enamel exposed. Group I served as control applied with tooth paste base, and group II was served as test applied with herbal formulation paste. The tested products were applied on the teeth according to the manufacturer"s recommendations and the teeth were stored in a moist environment for 24 hours. Each group of teeth was then subjected to a pH cycling model for 14 days, after which the teeth were cut through the center for an analysis of the depth of the carious lesion by polarized light microscopy. Comparisons were made between the control and herbal formulation paste group. There was significant (P<0.001) decrease in the lesion with the herbal formulation loaded tooth paste applied group compared to control group. The anti-caries activity may be due to its, antioxidant activity of herbs present in the herbal formulation.

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