Indian Journal of Dental Research

ORIGINAL RESEARCH
Year
: 2015  |  Volume : 26  |  Issue : 2  |  Page : 131--135

Microshear bonding effectiveness of different dentin regions


Anelise F Montagner, Marcos P M Carvalho, Alexandre H Susin 
 Department of Restorative Dentistry, Federal University of Santa Maria, Santa Maria, RS, Brazil

Correspondence Address:
Prof. Alexandre H Susin
Department of Restorative Dentistry, Federal University of Santa Maria, Santa Maria, RS
Brazil

Aim: The aim of this in vitro study was to evaluate the influence of dentin surfaces with different tubule orientation on bond strength of a multimode adhesive system. Materials and Methods: Twenty human molars were selected and prepared in different ways in order to produce different dentin regions. The teeth were randomized (n = 5) according to the application modes of a multimode adhesive system (etch-and-rinse and self-etching) and to the dentin region (occlusal and proximal - 1.5 mm depth from dentinoenamel junction). Cylindrical restorations were performed on dentin with a starch tube. The samples remained immersed in distilled water for 24 h and the microshear bond strength (μSBS) test was performed. The μSBS values were expressed in MPa and analyzed with ANOVA and Tukey«SQ»s test (P < 0.05). Results: There was no significant difference in the bond strength values between the application modes of the adhesive system (P = 0.19); however, the dentin regions (P < 0.05) significantly affected the μSBS. The proximal dentin presented higher bond strength values than occlusal dentin. Conclusion: The dentin surfaces with different tubule orientation influenced the bonding effectiveness of the adhesive system tested.


How to cite this article:
Montagner AF, Carvalho MP, Susin AH. Microshear bonding effectiveness of different dentin regions.Indian J Dent Res 2015;26:131-135


How to cite this URL:
Montagner AF, Carvalho MP, Susin AH. Microshear bonding effectiveness of different dentin regions. Indian J Dent Res [serial online] 2015 [cited 2021 Dec 6 ];26:131-135
Available from: https://www.ijdr.in/article.asp?issn=0970-9290;year=2015;volume=26;issue=2;spage=131;epage=135;aulast=Montagner;type=0