[Effects of Nd:YAG laser on micro-tensile bond strength of single bond adhesive system for non-carious sclerotic dentin].
Zhonghua Kou Qiang Yi Xue Za Zhi
; 45(11): 684-6, 2010 Nov.
Article
em Zh
| MEDLINE
| ID: mdl-21211437
ABSTRACT
OBJECTIVE:
To investigate the effect of NdYAG laser on microtensile bond strength of single bond adhesive system for non-carious sclerotic dentin.METHODS:
Ten human molars with occlusal wearing were cut into equal halves (nearly 12 mm(2)), and randomly divided into experimental group and control group. The teeth in experimental group were processed with NdYAG laser (1 W, 10 Hz), and then applied with Scotchbond and filled with Z350 resin. In control group, the teeth were processed with single bond and filled with Z350 resin. The specimens were sectioned, and the microtensile bond strengths of each sample was tested by a universal testing machine.RESULTS:
The bond strength of the experimental group [(26.11 ± 1.62) MPa] was significantly higher than that of the control group [(22.27 ± 2.16) MPa], P < 0.05. Stero-microscope examination indicated that most of the fractures occurred in dentin-resin interface.CONCLUSIONS:
NdYAG laser can increase the microtensile bond strength of single bond adhesive system in non-carious sclerotic dentin.
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Base de dados:
MEDLINE
Assunto principal:
Bis-Fenol A-Glicidil Metacrilato
/
Cimentos Dentários
/
Lasers de Estado Sólido
Idioma:
Zh
Ano de publicação:
2010
Tipo de documento:
Article