Asthana G, Khambhala R, Govil S, Dhanak N, Kanodia S, Parmar A. Effect of chemical cross-linkers on surface topography and microtensile bond strength of sound dentin: An
in vitro study.
J Conserv Dent 2021;
24:288-292. [PMID:
35035156 PMCID:
PMC8717847 DOI:
10.4103/jcd.jcd_607_20]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/19/2021] [Accepted: 07/04/2021] [Indexed: 11/11/2022] Open
Abstract
AIM AND OBJECTIVES
The aim of the study was to investigate the effect of two different collagen cross-linking agents proanthocyanidin (Grape seed extract [GSE] and 1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide) on the surface topography of etched dentin and microtensile bond strength (μTBS) of resin dentin bond.
MATERIALS AND METHODS
Fifty-two sound human 3rd molars were collected, and their occlusal surfaces were ground flat to expose dentin. Dentin surfaces were etched using phosphoric acid and then teeth were randomly divided into four groups, according to the dentin treatment: Group 1: wet bonding technique, Group 2: dry bonding technique, Group 3: 6.5% proanthocyanidin, and Group 4: 0.1M carbodiimide. Scanning electron microscope analysis was done for twenty specimens (n = 5 per group) at ×10,000 and ×30,000 magnification. Remaining 32 specimens were restored with TETRIC N-Bond adhesive systems and resin composite. After 24 h, teeth were sectioned to produce a cross-sectional surface area of 1.0 mm2 and tested for μTBS.
STATISTICAL ANALYSIS
Data were statistically analyzed using ANOVA and post hoc least significant difference test (P < 0.05).
CONCLUSION
When acid-etched dentin is treated by 6.5% proanthocyanidin (GSE) and 0.1M carbodiimide, followed by application of adhesives, it results in increased μTBS due to cross-linking of collagen fibrils.
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