EFFECT OF SALIVARY CONTAMINATION ON SHEAR BOND STRENGTH OF SELF-ETCH AND TOTAL-ETCH SYSTEMS TO DENTIN OF PRIMARY MOLARS

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MEHRAN M.; TAVASOLI S.; JOUZI A.

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Journal: DANESHVAR MEDICINE Year:2007 | Volume:14 | Issue:69 Page(s): 45-52

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Title

EFFECT OF SALIVARY CONTAMINATION ON SHEAR BOND STRENGTH OF SELF-ETCH AND TOTAL-ETCH SYSTEMS TO DENTIN OF PRIMARY MOLARS

Author(s)

MEHRAN M. | TAVASOLI S. | JOUZI A. | Issue Writer Certificate

Keywords

TOTAL ETCHQ3

SELF ETCHQ3

SALIVAQ3

BOND STRENGTHQ3

PRIMARY DENTINQ3

Abstract

Background: One of the clinical problems during preparing composite restoration is SALIVAry contamination in different stages of filling procedure. By introduction of modern adhesive systems and faster, simplified application techniques, the risk of SALIVAry contamination and the technique sensitivity is reduced. The purpose of this study was to evaluate the effect of SALIVAry contamination on shear BOND STRENGTH of self-etch and total-etch systems to dentin of primary molars.Materials & Methods: A random sample of 70 extracted primary molars was selected. After preparing dentin flatted surface (in bucc. or ling.), the composite which was located in cylindrical rubber molds was bonded to dentin under different conditions. In four first groups TOTAL ETCH bonding system (excite, Ivoclar-Vivadent) was used. T1: etching (15s), rinsing, blot drying and bonding. T2: contaminated with SALIVA after etching, re-etched and bonded. T3: contaminated after curing, rinsed, dried. T4: contaminated after curing, rinsed, blot dried, re-etched and bonded. In three latter groups, SELF ETCH bonding system (Adhe SE, Ivoclar-Vivadent) was used. S1: using Adhe SE (2 layers etch & prim and 1 layer bonding) and curing. S2: contaminated after curing, rinsed, dried, re-self etched. S3: contaminated after curing, rinsed, dried. The shear BOND STRENGTH on an Instron universal testing machine was measured in megapsacals at a strain rate of 0.5 mm/min .Group means and standard deviations were calculated and the data were analyzed using one – way ANOVA , followed by Tukey test (E=0.05).Results: The results showed statistical significant differences among groups (p=o/ooo1). The highest BOND STRENGTH was found in S1 group (39.5 Mpa) while the lowest was in T3 group (14.33 Mpa).Conclusions: Self-etch system had significantly greater shear BOND STRENGTH than total-etch system both in SALIVA contaminated and uncontaminated dentin of primary dentition. In the SELF ETCH system, rinsing was enough, only if SALIVA contamination occurred after curing of adhesive without the need to repeat bonding procedure.

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APA: Copy

MEHRAN, M., TAVASOLI, S., & JOUZI, A.. (2007). EFFECT OF SALIVARY CONTAMINATION ON SHEAR BOND STRENGTH OF SELF-ETCH AND TOTAL-ETCH SYSTEMS TO DENTIN OF PRIMARY MOLARS. DANESHVAR MEDICINE, 14(69), 45-52. SID. https://sid.ir/paper/30968/en

Vancouver: Copy

MEHRAN M., TAVASOLI S., JOUZI A.. EFFECT OF SALIVARY CONTAMINATION ON SHEAR BOND STRENGTH OF SELF-ETCH AND TOTAL-ETCH SYSTEMS TO DENTIN OF PRIMARY MOLARS. DANESHVAR MEDICINE[Internet]. 2007;14(69):45-52. Available from: https://sid.ir/paper/30968/en

IEEE: Copy

M. MEHRAN, S. TAVASOLI, and A. JOUZI, “EFFECT OF SALIVARY CONTAMINATION ON SHEAR BOND STRENGTH OF SELF-ETCH AND TOTAL-ETCH SYSTEMS TO DENTIN OF PRIMARY MOLARS,” DANESHVAR MEDICINE, vol. 14, no. 69, pp. 45–52, 2007, [Online]. Available: https://sid.ir/paper/30968/en

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