Aim: To evaluate the protective potential of calcium sucrose phosphate and novamin containing toothpaste on enamel surface. Settings and Design: In vitro-study. Materials and Methods: This study consisted of 30 samples embedded in orthodontic resin with either buccal or lingual surface exposed. The samples were assigned to either calcium sucrose phosphate containing paste; novamine toothpaste; or control group. The groups were then subjected to cycling in a demineralizing solution and a remineralizing solution. Groups II and III received prior application of calcium sucrose phosphate paste and novamine toothpaste respectively followed by cycling in a demineralizing solution and a remineralizing solution. Following 14 days of cycling, the samples were sectioned and examined using confocal microscopy. The depths of lesions were evaluated. Statistical Analysis: Image Proplus software was used to analyze the images. The values were statistically evaluated using one – way ANOVA and Scheffe's Test. Results and Conclusion: Within the limitations of study it was concluded that enamel surfaces treated with calcium sucrose phosphate paste exhibited the least lesion depths followed by enamel surfaces treated with the novamin tooth paste and control group respectively.
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