A study was conducted to determine the fluoride release from Giomer and Compomer, using different topical fluoride regimes and to compare the amount of fluoride release from Giomer to that of Compomer.Forty eight specimen of each Giomer and Compomer were divided into four treatment groups namely, control group, fluoridated dentifrice(500 ppm) once daily group, fluoridated dentifrice(500 ppm) twice daily group, fluoridated dentifrice(500 ppm) once daily+fluoridated mouthwash(225 ppm) group. Each specimen was suspended in demineralising solution for 6hrs and remineralising solution for 18hrs.Fluoride release was measured in both the demineralising solution and remineralising solution daily for 21 days. Total daily fluoride release for each specimen was calculated by adding the amount released in the demineralising solution to that released in remineralising solution.

A study was conducted to evaluate and compare the effect of cavity disinfectants on the fracture resistance of primary molars restored with indirect composite inlays.Thirty six non-carious primary second molars were selected and divided randomly into three groups (n=12).Control group(no disinfectant), Chlorhexidine group(disinfected with 2% chlorhexidine for 40 sec) and Sodium hypochlorite group crowns (disinfected with 2% chlorhexidine for 40 sec).The inlays were fabricated by indirect method using Ceram X nano composite on plaster die. All the groups were submitted to compression mechanic test in a Hounsfield universal testing machine at 1mm/ min cross head speed and the results calculated in Newton.From the present study it may be concluded that cavity disinfectants had detrimental effect on the fracture resistance of primary molars. Among the disinfectants employed in the present study chlorhexidine showed a better resistance to fracture than the sodium hypochlorite.