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Introduction: - Long term soft liners (acrylic and silicone based) are used to prevent damage to the abused mucosa, but they have the disadvantage of becoming porous with time leading to a suitable environment for opportunistic infections. This study was aimed to examine the inhibitory effect of incorporation of antifungal drug clotrimazole into long term denture soft liners on the growth of Candida albicans in vitro and evaluate the change in the surface hardness of soft liners.Materials and Method: The present study was done for two different long term soft liners, acrylic based (Permasoft) and silicone-based (Mollosil), by addition of clotrimazole drug in their minimum inhibitory concentration. The properties –zone of inhibition and surface hardness(Shore A) were evaluated at time intervals of 1,7,14,21,35 and 42days. A total of 224 samples were prepared. The properties were analyzed and inter group and intra group data was analyzed statistically by using One way ANOVA, Tukey post hoc-test and Paired t test.Result: The results showed significant creation of zone of inhibition for samples containing clotrimazole with the zone of inhibition decreasing with time. The surface hardness of all the samples increases with time.

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Introduction: Dental implants have emerged as the treatment of choice for restoring missing teeth in situations that require functional and aesthetic replacements. The aim of the study was to assess the dimensional accuracy of (1) the resultant casts made from different impression techniques for implants, (2) implant impressions using two types of splinting material for open tray technique, auto-polymerising acrylic resin and light-cure acrylic resin and impression techniques, including non-sectioning and sectioning and rejoining with the same splinting material. Materials and Methods: The present study was conducted to compare the accuracy of direct splinted implant impression techniques. There were four impression techniques selected: (1) direct impression technique with autopolymerising acrylic resin splint, (2) direct impression technique with autopolymerising acrylic resin splint sectioned 17 min after setting and welded with the same resin, (3) direct impression technique with light-cure acrylic resin splint and (4) direct impression technique with light-cure acrylic resin splint sectioned and welded with the same resin. Results: Comparison within the four impression groups with respect to distances X and Y with a master model by Tukey’s post-hoc procedures shows a statistically significant difference only for Group 1, showing P < 0.05. Conclusion: There is a significant difference in the accuracy of the direct splinted implant impression technique with auto-polymerising acrylic resin without sectioning. Sectioning the auto-polymerising acrylic resin splint after 17 min and rejoining before impression making markedly increase the accuracy of implant impression. Splinting with light-cure acrylic resin shows a more accurate impression than the splint with auto-polymerising acrylic resin.