Articles
| Open Access |
https://doi.org/10.37547/ajbspi/Volume03Issue07-02
EVALUATION OF SHEAR BOND STRENGTH OF COMPOSITE TO DENTIN REWETTED WITH A DESENSITIZER: AN IN-VITRO STUDY
Abstract
This in-vitro study aimed to evaluate the shear bond strength of composite resin to dentin after rewetting with a desensitizer. The study involved 60 extracted human molars, which were randomly divided into three groups: Group A (control) without desensitizer treatment, Group B with desensitizer treatment followed by rewetting, and Group C with desensitizer treatment without rewetting. The dentin surfaces were prepared and treated according to the assigned group. Composite resin cylinders were bonded to the dentin surfaces, and shear bond strength testing was performed using a universal testing machine. The results revealed that Group B, which underwent desensitizer treatment followed by rewetting, exhibited significantly higher shear bond strength compared to Group A (control) and Group C (desensitizer treatment without rewetting). These findings suggest that rewetting dentin treated with a desensitizer enhances the shear bond strength of composite resin, potentially improving the long-term success of restorative dental procedures.
Keywords
Shear bond strength, composite resin, dentin
References
McLean DE, Meyers EJ, Guillory VL, Vandewalle KS. Enamel bond strength of new universal adhesive bonding agents. Oper Dent. 2015 Jun;40(4):410-7.
2. Crawford PJ, Whittaker DK, Owen GM. The influence of enamel prism orientation on leakage of resin‐bonded restorations. JOral Rehabil. 1987 May;14(3):283-90.
3. Swift EJ, Perdigao J, Heymann HO. Bonding to enamel and dentin: a brief history and state of the art, 1995. Quintessence Int-English Edition. 1995 Feb 1;26:95.
4. Piemjai M, Watanabe A, Iwasaki Y, Nakabayashi N. Effect of remaining demineralised dentine on dental microleakage accessed by a dye penetration: how to inhibit microleakage?. JDent. 2004 Aug 1;32(6):495-501.
5. Meyer-Lueckel H, Paris S, Mueller J, Cölfen H, Kielbassa AM. Influence of the application time on the penetration of different dental adhesives and a fissure sealant into artificial subsurface lesions in bovine enamel. Dent Mater. 2006 Jan 1;22(1):22-8.
6. Finger WJ, Balkenhol M. Rewetting strategies for bonding to dry dentin with an acetone-based adhesive. J Adhes Dent. 2000 Mar 1;2(1).
7. Al Qahtani MQ, Platt JA, Moore BK, Cochran MA. The effect on shear bond strength of rewetting dry dentin withtwo desensitizers. Oper Dent. 2003 May 1;28(3):287-96.
8. KÜlÜnk Ş, Sarac D, KÜlÜnk T, Karakaş Ö. The effects of different desensitizing agents on the shear bond strength of adhesive resin cement to dentin. J Esthet Restor Dent. 2011 Dec;23(6):380-7.
9. Vibha D, Prachi J , Lalitagauri Mandke M . Evaluation of Shear Bond Strength of Two Dentin Bonding Agents with Two Desensitizers (An In-Vitro Study) Natl J Integr Res Med 2016; 7(4): 117-124.
10. Nakabayashi N, Pashley DH. Hybridization of dental Tissues. Che.3, 1, 2. Tokyo: Quintessence publishing co Ltd; 1998.