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:: Volume 23, Issue 4 (Winter 2006) ::
J Dent Sch GYEAR__, 23(4): 647-655 Back to browse issues page
An in vitro comparison study of shear bond strength of 4 dentin bondings in 2 different dentinal depths
Mehran Motamedi Corresponding Author: Dr. *, Ali Asghar Alavi Dr., Fateme Razmjoo Dr.
Assistant Prof., , mmotamedi@sums.ac.ir
Abstract:   (11183 Views)

Background & Aim: To determine the bond strength of four adhesive systems to either superficial or deep dentin.

Methods & Materials: Eighty – eight extracted human impacted third molars had their crowns transversally sectioned either next to the occlusal DEJ or 1 mm above of the CEJ, to expose flat, superficial or deep dentin surface. The surfaces were bonded with: 1) Clearfil SE Bond (CSEB), 2) Single Bond (SB), 3) Scotch Bond MP (SBMP) and 4) Prompt L-POP (PLP) according to manufacturer’s instruction. Composite build-ups were constructed incrementally with Z100. After storage in 25oC water, teeth were thermocycled. Then instron machine was used to measure the shear bond strength of each specimen with cross head speed of 1 mm/min. One way ANOVA and Tukey test were used to analyze the data.

Results: Bond strength of SB, SBMP & SCEB performed equally when were bonded to superficial dentin lowest value was obtained with PLP. On deep dentin, the bond strength of CSEB was significantly higher to superficial than to deep dentin. The rest of the adhesives showed almost similar bond strengths to both dentinal depths.

Conclusion: CSEB & SBMP showed higher bond strength on both deep and superficial dentin. So, in regards to the results of this study, using these bondings in deep dentin areas is recommended.

J Dent Sch 2006 23(4): 19

Keywords: Shear bond strength, Deep dentin, Superficial dentin.
Full-Text [PDF 201 kb]   (777 Downloads)    
Type of Study: Original Article | Subject: Special
Received: 2006/09/6
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Motamedi M, Alavi A A, Razmjoo F. An in vitro comparison study of shear bond strength of 4 dentin bondings in 2 different dentinal depths. J Dent Sch. 2006; 23 (4) :647-655
URL: http://jds.sbmu.ac.ir/article-1-41-en.html
Volume 23, Issue 4 (Winter 2006) Back to browse issues page
مجله دانشکده دندانپزشکی دانشگاه علوم پزشکی شهید بهشتی Shahid Beheshti University Dental Journal
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