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CC BY-NC-ND 4.0 · Eur J Dent 2007; 01(02): 091-096
DOI: 10.1055/s-0039-1698320
Original Article
Dental Investigation Society

Microtensile Bond Strength of Cad-Cam and Pressed-Ceramic Inlays to Dentin

A Nilgün Öztürk
a   Selcuk University, School of Dentistry, Department of Prosthodontics, Konya, Turkey.
,
Özgür İnan
a   Selcuk University, School of Dentistry, Department of Prosthodontics, Konya, Turkey.
,
Erkan İnan
b   Private Practice in Tafers, Switzerland.
,
Bora Öztürk
c   Selcuk University, School of Dentistry, Department of Operative Dentistry, Konya, Turkey.
› Author Affiliations
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Publication History

Publication Date:
27 September 2019 (online)

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ABSTRACT

Objectives: CAD-CAM system is popular because of high esthetic and short fabrication time. But, there is limited information available about the microtensile bonding of luting cements to CAD-CAM inlays and to dentin. The aim of this study was to examine the bond strength of CAD-CAM (Cerec 3) and pressed-ceramic (IPS Empress 2) inlays to dentin surface by microtensile testing using two luting cements.

Materials and Methods: Standardized mesio-occlusal cavities were made in forty extracted molar teeth. An occlusal reduction of 2 mm was made; the bucco-lingual width of the proximal boxes was 4 mm, the occlusal width 3 mm and the depth of the pulpal and axial walls 2 mm. The proximal boxes were extended 1 mm below the cemento-enamel junction. Teeth were randomly assigned to 2 groups to evaluate the bonding of 2 ceramic systems, Cerec 3 (Group I) and IPS Empress 2 (Group II), to dentin. Each of the 2 groups were further divided into 2 luting cement groups, Panavia F (Group A) and Variolink II (Group B). After cementation, the teeth were sectioned into two 1.2x1.2 mm wide ‘I’ shape sections. The specimens were then subjected to microtensile testing at a crosshead speed of 1 mm/min. Twoway ANOVA and Tukey HSD tests were used to evaluate the results.

Results: The mean microtensile bond strengths of Cerec 3 and IPS Empress 2 bonding to dentin with luting agents in MPa were Panavia F (13.98±3.44), Variolink II (14.19±3.12) and Panavia F (15.12±3.15), Variolink II (15.45±3.08) respectively. No significant differences were found among the 2 ceramic systems (P>.05) and 2 luting cements with regard to dentin bond strengths (P>.05).

Conlusions: There was no difference found between the dentin bond strength of the Cerec 3 and IPS Empress 2 inlays cemented with two luting cements. (Eur J Dent 2007;2:91-96)

Key words

Dentin - Bond strength - Resin cements - Inlay - CAD-CAM - IPS Empress
 

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