AN EVALUATION ON SHEAR STRENGTH OF COMPOSITE RESIN BONDED TO PRIMARY TEETH DENTIN AFTER ND: YAG LASER RADIATION

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KOWSARI A.; SERAJ B.; PASDAR N.

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Journal: Journal of Dental Medicine Year:2002 | Volume:15 | Issue:1 (30) Page(s): 46-55

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Information Journal Paper

Title

AN EVALUATION ON SHEAR STRENGTH OF COMPOSITE RESIN BONDED TO PRIMARY TEETH DENTIN AFTER ND: YAG LASER RADIATION

Author(s)

KOWSARI A. | SERAJ B. | PASDAR N. | Issue Writer Certificate

Keywords

ND:YAG LASERQ2

SHEAR BOND STRENGTHQ3

DENTINQ3

BONDINGQ2

PRIMARY TEETH.Q4

Abstract

Abstract: Due to the differences in the composite and morphology of DENTIN in primary and permanent teeth, it is necessary to make improvements in BONDING techniques to promote the strength of composite resins bonded to the DENTINal surface, in PRIMARY TEETH. The use of lower radiation, to make structural and chemical changes in DENTINal surfaces has been investigated. This research was conducted to evaluate the shear strength of the composite bonded to PRIMARY TEETH.em style="font-style:inherit;color:#ff0078"> DENTIN after Nd: YAG laser radiation and acid etching for conditioning. Peripheral DENTIN of the buccal and lingual surfaces of 60 extracted posterior PRIMARY TEETH.were exposed and polished with 600 grit with Sic paper. The teeth were divided randomly in 3 groups of 20 teeth. In group 1 etching gel, primer and adhesive of scotch bond multipurpose system (SMP), in group 2 laser at 1.6 w and 80 mj/pulse, and in group 3 laser at 2 s and 700 mj/pulse were used. Moreover, in groups 2 and 3, after laser radiation, acid etching, primer and adhesive of SMP system were applied. After necessary laboratory tests, the mean SHEAR BOND STRENGTH in MPa were 20.99±5.3 (group 1), 23.82±6.31 (group 2) and 26.58±5.59 (group 3). ANOVA, scheffe, tukey statistical tests showed that the bond strengths of group 3 were statistically higher than group 1. The frequency of DENTIN cohesive failures were significantly higher in groups 2 and 3, compared to group 1 that indicates a higher bond strength in these groups. Scanning electron mirographs of laser radiated surfaces, show a porous and rough surface morphology that enhances the mechanical bond of the composite

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APA: Copy

KOWSARI, A., SERAJ, B., & PASDAR, N.. (2002). AN EVALUATION ON SHEAR STRENGTH OF COMPOSITE RESIN BONDED TO PRIMARY TEETH DENTIN AFTER ND: YAG LASER RADIATION. JOURNAL OF DENTAL MEDICINE, 15(1 (30)), 46-55. SID. https://sid.ir/paper/25736/en

Vancouver: Copy

KOWSARI A., SERAJ B., PASDAR N.. AN EVALUATION ON SHEAR STRENGTH OF COMPOSITE RESIN BONDED TO PRIMARY TEETH DENTIN AFTER ND: YAG LASER RADIATION. JOURNAL OF DENTAL MEDICINE[Internet]. 2002;15(1 (30)):46-55. Available from: https://sid.ir/paper/25736/en

IEEE: Copy

A. KOWSARI, B. SERAJ, and N. PASDAR, “AN EVALUATION ON SHEAR STRENGTH OF COMPOSITE RESIN BONDED TO PRIMARY TEETH DENTIN AFTER ND: YAG LASER RADIATION,” JOURNAL OF DENTAL MEDICINE, vol. 15, no. 1 (30), pp. 46–55, 2002, [Online]. Available: https://sid.ir/paper/25736/en

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