Journal of Conservative Dentistry
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Year : 2013  |  Volume : 16  |  Issue : 2  |  Page : 135-138

Effect of collagen cross-linkers on the shear bond strength of a self-etch adhesive system to deep dentin

Department of Conservative Dentistry and Endodontics, SRM Dental College, Bharathi Salai, Ramapuram, Chennai, Tamil Nadu, India

Correspondence Address:
Sampath Vidhya
Department of Conservative dentistry and Endodontics, SRM Dental College, Bharathi Salai, Ramapuram, Chennai - 600 089, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-0707.108194

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Objectives: To evaluate the shear bond strength of composite resin to deep dentin, bonded using a self-etch adhesive, after treatment with two collagen cross-linkers at varying time intervals. Materials and Methods: Thirty extracted human incisors were sectioned longitudinally into equal mesial and distal halves ( n = 60). The proximal deep dentin was exposed and the specimens were divided based on the surface treatment of dentin prior to bonding as follows: Group I ( n = 12, control): No prior dentin surface treatment; group II ( n = 24): Dentin surface pretreated with 10% sodium ascorbate; and group III ( n = 24): Dentin surface pretreated with 6.5% proanthocyanidin. Groups II and III were further divided into two subgroups based on the pre-treatment time of five and 10 min. Shear bond strength of the specimens was tested using universal testing machine and the data were statistically analyzed. Results: Significantly higher shear bond strength to deep dentin was observed in teeth treated with 10% sodium ascorbate and 6.5% proanthocyanidin compared to control group. No significant difference was observed between 5 min and 10 min pre-treatment times. Conclusion: Dentin surface pre-treatment with both 10% sodium ascorbate and 6.5% proanthocyanidin resulted in significant improvement in bond strength of self-etch adhesive to deep dentin.

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