COMPARATIVE EVALUATION OF THREE DIFFERENT COMPOSITE PLACEMENT TECHNIQUE USING DIFFERENT MODES OF CURING LIGHT ON PRIMARY TEETH: AN IN-VITRO STUDY

Background: For the past several years, different techniques and materials have been examined to reduce microleakage in class V restorations. Thus both the quantity and quality of polymerization can be improved with proper selection of light curing modes and clinical placement techniques Aim: The aim of the present study was to evaluate and compare which is one of the best placement technique and mode of curing to reduce microleakage. Material and method: Class V cavities were prepared in 135 teeth. Teeth were divided into 3 groups of 45 each using three different placement technique with two different composite. Each group was further subdivided into 15 teeth cured by different curing modes. Results: The ‘p’ value of the mean scores of all the groups when cured with high intensity mode is 0.004 (≤0.05) indicating that the results are statistically significant. But the ‘p’ value of the mean scores of all the groups when cured with pulse delay and ramped mode is 0.603 and 2.167(≥0.05) indicating that the results are not statistically significant.  The ‘p’ value of the mean scores of group I and group II when cured with different mode is 0.065 and 0.085(≥0.05) indicating that the results are not statistically significant. But the ‘p’ value of the mean scores of the group III when cured with different mode is 0.001(≤0.05) indicating that the results are statistically significant. Conclusion: Split increment horizontal technique showed least microleakage despite of curing modes. Although curing modes did not show statistically significant results but high intensity showed least microleakage. Keywords: composite, G.V Black Classification, polymerization shrinkage, curing modes

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