Background: The cariostatic action associated with fluoride-releasing restorative materials is mainly attributed to a sustained release of fluoride. This research aims on comparing Cention N and Zirconomer Improved in vitro fluoride release and re-release. Methods: Test materials were grouped into two categories containing 15 samples each. The cumulative fluoride release and re-release measurements was made during 1st, 7th and 15th day. The independent sample t -test and paired t -test was used to check mean differences. The level of significance was kept at p<0.05. Results: At day 1, 7 and 15 the initial fluoride release of zirconomer group was significantly higher (p<0.05) than the cention group. It was found that from day 1 to day 7 the mean initial fluoride release has significantly reduced (p<0.05) for both the groups. Similar results were also seen when comparisons were done between day 7 to day 15 (p<0.05) and day 1 to day 15 (p<0.05) for both the groups. Conclusion: Zirconomer was more efficient in initial and fluoride re-release than the Cention N restorative material. Further in vivo studies with more parameters are recommended to evaluate fluoride release and cariostatic performance of Cention N and Zirconomer in real environmental circumstances.

it is determined that under prevailing agro-climatic conditions, cowpea crop for green pods fertilized with 50% RDN through FYM + 50% RDN through neem cake + Vermiwash 10% spray at 10% flowering stage proved most efficient in enhancing yield of cowpea and found economically viable treatment. This treatment application has produced maximum green pod yield 5206.00 kg ha -1 and gave highest gross and net return 104120.00 and 81782.30` ha -1 respectively with a benefit cost ratio of 3.66.