Effect of Different Cavity Disinfectants on Marginal Sealing Ability of a Seventh-generation Dentin Bonding Agent: An In Vitro Study

JOURNAL TITLE: The Journal of Contemporary Dental Practice

1. Ashishkumar K Patil
2. Nitin M Lokhande
3. Rohini Mahajan
4. Priyanka D Bawa
5. Harsha Mahajan
6. Sushilamma H Manjunath
Publishing Year
Author Affiliations
1. com.mps.common.model.Contributor@24fa513 ,
2. com.mps.common.model.Contributor@409b6d4b ,
3. com.mps.common.model.Contributor@2e4e1df2 ,
4. com.mps.common.model.Contributor@6401639f ,
5. com.mps.common.model.Contributor@1b993531 ,
6. com.mps.common.model.Contributor@f3e23c
Article keywords
Cavity disinfectants, Chlorhexidine gluconate, Iodine, microleakage, Seventh-generation dentin-bonding agent and sodium hypochlorite


solution) on microleakage in a seventh-generation dentin-bonding system. Materials and methods: Class V cavity was prepared on 50 extracted molars (n = 50). The respective experimental groups were treated with cavity disinfectants and Adper Easy One Bond. Preparations without cavity disinfectants worked as negative control and those with neither disinfectant nor dentin-bonding resin application worked as positive controls. After the cavity preparations were restored with resin composite (Filtek Z 350), the teeth were then subjected to dye leakage tests. Microleakage was assessed for both occlusal and gingival margins, using a stereomicroscope. Data were analyzed using (ANOVA; Kruskal–Wallis) test. Results: No statistically significant differences were observed among 2% chlorhexidine gluconate, 2.5% sodium hypochlorite, and 2% iodine and also no statistically significant differences were observed between occlusal and gingival margins of groups. Conclusion: (1) 2% chlorhexidine gluconate, 2.5% sodium hypochlorite, and 2% iodine produced significantly higher microleakage when used with seventh-generation dentin-bonding agent. (2) 2% chlorhexidine gluconate produced lesser microleakage in comparison with 2.5% sodium hypochlorite and 2% iodine. (3) The gingival margins exhibited greater microleakage than occlusal margins. Clinical significance: The application of cavity disinfectants on prepared tooth before the application of dentin-bonding agent could help to reduce the potential risk of residual caries and postoperative sensitivity.

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