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CC BY-NC-ND 4.0 · Eur J Dent 2013; 07(04): 436-441
DOI: 10.4103/1305-7456.120679
Original Article
Dental Investigation Society

Comparing the shear bond strength of direct and indirect composite inlays in relation to different surface conditioning and curing techniques

Yahya Orcun Zorba
1   Department of Restorative Dentistry, Faculty of Dentistry, Erciyes University, Kayseri, Turkiye
,
Nurcan Ozakar Ilday
2   Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University, Erzurum, Turkiye
,
Yusuf Ziya Bayındır
2   Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University, Erzurum, Turkiye
,
Sezer Demirbuga
1   Department of Restorative Dentistry, Faculty of Dentistry, Erciyes University, Kayseri, Turkiye
› Author Affiliations
Further Information

Publication History

Publication Date:
26 September 2019 (online)

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ABSTRACT

Objective: The aim of this study was to test the null hypothesis that different surface conditioning (etch and rinse and self-etch) and curing techniques (light cure/dual cure) had no effect on the shear bond strength of direct and indirect composite inlays. Materials and Methods: A total of 112 extracted human molar teeth were horizontally sectioned and randomly divided into two groups according to restoration technique (direct and indirect restorations). Each group was further subdivided into seven subgroups (n = 8) according to bonding agent (etch and rinse adhesives Scotchbond multi-purpose plus, All-Bond 3, Adper Single Bond and Prime Bond NT; and self-etch adhesives Clearfil Liner Bond, Futurabond DC and G bond). Indirect composites were cemented to dentin surfaces using dual-curing luting cement. Shear bond strength of specimens was tested using a Universal Testing Machine. Two samples from each subgroup were evaluated under Scanning electron microscopy to see the failing modes. Data was analyzed using independent sample t-tests and Tukey′s tests. Results: Surface conditioning and curing of bonding agents were all found to have significant effects on shear bond strength (P < 0.05) of both direct and indirect composite inlays. With direct restoration, etch and rinse systems and dual-cured bonding agents yielded higher bond strengths than indirect restoration, self-etch systems and light-cured bonding agents. Conclusions: The results of the present study indicated that direct restoration to be a more reliable method than indirect restoration. Although etch and rinse bonding systems showed higher shear bond strength to dentin than self-etch systems, both systems can be safely used for the adhesion of direct as well as indirect restorations.

Key words:

Adhesive - bonding agent - dentin - shear bond strength
 

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