Journal of Conservative Dentistry
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ORIGINAL RESEARCH ARTICLE
Year : 2017  |  Volume : 20  |  Issue : 2  |  Page : 120-124

Comparative evaluation of chlorhexidine, grape seed extract, riboflavin/chitosan modification on microtensile bond strength of composite resin to dentin after polymerase chain reaction thermocycling: An in vitro study


Department of Conservative Dentistry and Endodontics, Vishnu Dental College, West Godavari District, Andhra Pradesh, India

Correspondence Address:
Rani Samyukta Gajjela
Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Vishnupur, Bhimavaram, West Godavari District - 534 202, Andhra Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.212241

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Aim: The purpose of this study was to evaluate the influence of chlorhexidine (CHX), grape seed extract (GSE), riboflavin/chitosan modification on microtensile bond strength (μTBS) of composite resin to dentin after polymerase chain reaction (PCR) thermocycling. Materials and Methods: Forty extracted human molars were used and a flat surface was then prepared by removing the occlusal one-third. The teeth were randomly assigned into four groups - Group I in which self-etch adhesive (Adper Easy One) was applied and Groups II, III, IV were pretreated with 2% CHX, 6.5% GSE, and 1% riboflavin/chitosan, respectively, before the application of self-etch adhesive. Composite build-ups were constructed, and PCR thermocycling (5000 cycles) was performed. The μTBS was evaluated using the universal testing machine. Data were analyzed using one-way analysis of variance and Tukey's test. Results: The mean μTBS values for Group I (control), Group II (CHX), Group III (GSE), and Group IV (riboflavin/chitosan modification) were 30.81, 43.15, 38.79, and 35.07 MPa, respectively. Conclusion: Pretreatment with CHX and GSE leads to a significant increase in μTBS of composite resin to dentin.


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