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Journal of Dental and Oral Health

JDOH

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Research Article

Comparison of Shear Bond Strength of Composite to Composite Bond in Increment Technique (An in vitro study)

Sattar J. Abdul-Zahra Al Hmedat, Zuha Ayad Jaber

Correspondence Address :

Sattar J. Abdul-Zahra A lHmedat, B.D.S, M.Sc
Department of Conservative Dentistry
University of Kufa
Iraq
Tel: +9647801242375
Email: satarj.alhemedat@uokufa.edu.iq

Received on: April 13, 2017, Accepted on: May 04, 2017, Published on: May 10, 2017

Citation: Sattar J. Abdul-Zahra Al Hmedat, Zuha Ayad Jaber (2017). Comparison of Shear Bond Strength of Composite to Composite Bond in Increment Technique (An in vitro study)

Copyright: 2017 Sattar J. Abdul-Zahra Al Hmedat, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

  • Abstract

Abstract
Objective: Bonding composite to composite restorations in increment technique. The objective of this in vitro study was to determine the best procedure and bond to inhancing the bond between two incremente composite, by measuring shear bond strength between two new incremente  composites, surfaces were treated with a bonding agent (Bond Universal [3M ESPE]), mechanical retention by roughening surface with diamond bur and air isolation of cured composite. 
Methods:  Four groups and each group composed of 20 composite blocks The block prepared at dimension: (3, 3, 2 mm) made from 3M ESPE Nano Hybrid Z 250XT. First group: Oxygen -polymerization inhibited specimens (20 block). Second group: Inhibition formed of Oxygen - polymerization inhibited specimens (20 block) by using celluloid strip. Third group: all in one adhesive system (one bottleself etching 3M ESPE single bond universal adhesion material  which contained silane) specimens (20 block)   Four group: grinding  specimens (20 block) of composite by diamond bur. Using The VALO Cordless curing light has multi-wavelength (395 - 480nm) Light Emitting Diode (LED). 
Results: Experimental shear bond strengths Direct group 32.14 +/- 1.148 (Mpa), Bond group 30.75 +/- 1.854 (Mpa), celluloid Strip group 13.73 +/- 1.301 (Mpa) and Grinding group 19.67 +/- 1.919 (Mpa). The higher shear bond strength in direct and bond groups and non significant with lowest mean result of strip and grinding groups. was used to analyze data. One way ANOVA (F-test) was used to detect the significant differences between groups. L.S.D was used to compare mean differences between each two groups (multiple comparison). P≤0. 01 was considered to be significant at 1%. 
Conclusions: Depending on the mechanical property being tested, group treatments with all in one adhesive system (one bottleself etching 3M ESPE single bond universal adhesion material and direct group produced different results. produced more consistent results than grinding and celluloid groups.

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