Journal of Conservative Dentistry
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Year : 2013  |  Volume : 16  |  Issue : 4  |  Page : 367-370

Long-term bonding effectiveness of simplified etch-and-rinse adhesives to dentin after different surface pre-treatments

1 Department of Conservative Dentistry, Kothiwal Dental College, Moradabad, Uttar Pradesh, India
2 Department of Pediatric Dentistry, Kothiwal Dental College, Moradabad, Uttar Pradesh, India

Correspondence Address:
Rajni Nagpal
Department of Conservative Dentistry, Kothiwal Dental College, Moradabad-244001, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-0707.114352

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Objective: To evaluate the effect of 2% chlorhexidine (CHX) and 30% proanthocyanidin (PA) application on the immediate and long-term bond strength of simplified etch-and-rinse adhesives to dentin. Materials and Methods: One hundred twenty extracted human molar teeth were ground to expose the flat dentin surface. The teeth were equally divided into six groups according to the adhesives used, either Tetric N Bond or Solobond M and pretreatments given either none, CHX, or PA. Composite cylinder was bonded to each specimen using the respective adhesive technique. Half the samples from each group (n = 10) were then tested immediately. The remaining samples were tested after 6 month storage in distilled water. Results: The mean bond strength of samples was not significantly different upon immediate testing being in the range of 8.4(±0.7) MPa. The bond strength fell dramatically in the control specimens after 6 month storage to around 4.7(±0.33) MPa, while the bond strength was maintained in the samples treated with both CHX and PA. Conclusion: Thirty percent PA was comparable to 2% CHX with respect to preservation of the resin dentin bond over 6 months.

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