Journal of Conservative Dentistry
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Year : 2020  |  Volume : 23  |  Issue : 1  |  Page : 32-35

Influence of operator experience on bond strength of different adhesives to dentin

1 Department of Restorative Dentistry, Faculty of Dentistry, Baskent University, Ankara, Turkey
2 Department of Restorative Dentistry, Private Clinic, Ankara, Turkey
3 Department of Restorative Dentistry, Faculty of Dentistry, Ankara Yildirim Beyazit University, Ankara, Turkey
4 Department of Restorative Dentistry, Faculty of Dentistry, Kirikkale University, Kirikkale, Turkey

Correspondence Address:
Dr. Bercem Kalender
Smiles Dental Clinic, Alacaatlı Caddesi Mercan İşxs Merkezi, No: 15, C3 Çayyolu, Ankara
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JCD.JCD_47_19

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Aim: Application of adhesive systems on dentin is a multistep, technique-sensitive procedure. Thus, the aim was to assess the effect of operator experience on the shear bond strength of an etch-and-rinse adhesive system and a self-etch adhesive system on dentin. Materials and Methods: Forty-eight extracted human molar teeth were used in the study. They were embedded in an acrylic resin after cutting off the roots. The mesial and distal enamels of the teeth were removed to expose dentin surfaces. The samples were allocated to four groups (n = 12): Group 1: restorative dentistry specialist with 13 years of experience, Group 2: with 6 years of experience, Group 3: postgraduate operator with 2 years of experience, and Group 4: undergraduate student with 1 year of experience and familiar with adhesive with systems. Each operator applied an etch-and-rinse adhesive system (Adper Single Bond 2) to mesial surface and a self-etch adhesive system (Clearfil SE Bond) to distal surface (n = 12). Then, a composite resin (Filtek Z250) was inserted with the aid of a plastic ring (2 mm × 2 mm) and light polymerized. The specimens were stored in distilled water before shear bond strength test. A two-way ANOVA test was used for statistical analysis. Results: No statistically significant difference was found between each operator type with respect to etch-and-rinse adhesive system (P > 0.05); however, the undergraduate student performed better than 2-year experienced operator with respect to self-etch system application (P < 0.05). Conclusion: The shear bond strength of a self-etch system might vary according to the operator's experience.

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