Submitted: 25 Dec 2007
Accepted: 25 Feb 2013
ePublished: 25 Feb 2013
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J Iran Dent Assoc. 2007;19(3): 79-86.
  Abstract View: 18

Research

The effect of flowable composite and resin cement on shear bond strength of porcelain veneer to enamel

Ali Esmaili, Abolfazl Saboury*, Amir Ghassemi
*Corresponding Author: Email: A-saboury@yahoo.com

Abstract

The effect of flowable composite and resin cement on shear bond strength of porcelain veneer to enamel

Dr. A. Esmaili * - Dr. A. Saboury ** - Dr. A. Ghassemi ***

*Assistant Professor of Prosthodontics Dept., Faculty of Dentistry, Tabriz University of Medical Sciences.

**Assistant Professor of Prosthodontics Dept., Faculty of Dentistry, Shaheed Beheshti University of Medical Sciences.

***Associate Professor of Operative Dentistry Dept., Faculty of Dentistry, Shaheed Beheshti University of Medical Sciences

Abstract

Background and Aim: There are insufficient data on the shear bond strength of Porcelain Veneers to enamel by using flowable composite as a luting Cement. This study was conducted in order to compare the shear bond strength of two different systems by using bovine enamel. Materials and Methods: Thirty freshly extracted anterior mandibular intact bovine teeth were randomly divided into two groups. Feldespatic Porcelain discs were attached to the enamel by Panavia F2 resin Cement and Filtek Flow flowable composite according to the manufacture’s instruction. The bonded specimens were immersed in 37oC water for 30 days and then thermocycled at 5oC and 55oC for 500 cycles. Samples were subjected to shear bond strength test. The modes of failure were determined under stereo microscope. Group differences were statistically analyzed by using the student-t test.

Results: The mean bonding strength in Panavia F2 group was 24.26(±8.2) mega paschal (Mpa), and 17.25 (± 8.1) Mpa, in Filtek Flow group. The statistical analysis showed significant difference between the two groups (P<0.005). Mode of failure in the first group was mainly cohesive and adhesive in the second one.

Conclusion: This study revealed that the shear bond strength of dual cure Panavia F2 resin cement is considerably higher than that of light cure Filtek Flow flowable composite.

Key words: Shear bond strength - Porcelain veneer - Flowable composite - Resin cement - Bovine enamel

Corresponding Author: Prosthodontics Dept., Faculty of Dentistry, Shaheed Beheshti University of Medical Sciences.

e.mail: A-saboury@yahoo.com

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