Effects of chlorhexidine and gaseous ozone on microleakage and on the bond strength of dentin bonding agents with compomer restoration on primary teeth

摘要: Abstract Background/purpose The aim of this study was to evaluate microleakage and bond strength in primary tooth dentin after disinfection with chlorhexidine solution or gaseous ozone. Materials methods Sixty first second molar teeth without caries were collected. Thirty these ground expose the surface divided into three groups ( n  = 10 for each group). After application materials, restored compomer restorations. Dentin sticks obtained from specimens used microtensile test. effect on same materials restorations then tested. class V cavities prepared facial surfaces remaining 30 sound molars which applied that compomer. thermocycled, stained basic fuchsine, sectioned evaluation, examined under a stereomicroscope. Kruskall-Wallis, Mann-Whitney U , one-way ANOVA, post hoc Tukey tests statistical analyses. Results When compared, difference between ozone group control not significant (P > 0.05); however, either other two (P   0.05). Conclusion Ozone may be an alternative antibacterial procedure because increased application. Chlorhexidine decreased bonding significantly. There no values.