dc.creator | FERREIRA, Leila S. | |
dc.creator | FERREIRA, Lisiane Soares | |
dc.creator | FRANCCI, Carlos | |
dc.creator | NAVARRO, Ricardo Scarparo | |
dc.creator | CALHEIROS, Fernanda Calabro | |
dc.creator | EDUARDO, Carlos de Paula | |
dc.date.accessioned | 2012-10-20T00:16:03Z | |
dc.date.accessioned | 2018-07-04T15:23:04Z | |
dc.date.available | 2012-10-20T00:16:03Z | |
dc.date.available | 2018-07-04T15:23:04Z | |
dc.date.created | 2012-10-20T00:16:03Z | |
dc.date.issued | 2009 | |
dc.identifier | JOURNAL OF ADHESIVE DENTISTRY, v.11, n.2, p.117-125, 2009 | |
dc.identifier | 1461-5185 | |
dc.identifier | http://producao.usp.br/handle/BDPI/25622 | |
dc.identifier | http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000265951900006&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1622288 | |
dc.description.abstract | Purpose: The aim of this in vitro study was to evaluate the microtensile bond strength (mu TBS) and hybrid layer morphology of different adhesive systems, either followed by treatment with Nd:YAG laser irradiation or not. Previous studies have shown the effects of Nd:YAG laser irradiation on the dentin surface at restoration margins, but there are few reports about the significance of the irradiation on the hybrid layer. Materials and Methods: The flattened coronal and root dentin samples of 24 bovine teeth were randomly divided into 8 groups, according to the adhesive system used - Scotchbond Multi Purpose (SBMP) or Clearfil SE Bond (CSEB) - and were either irradiated with Nd:YAG or not, with different parameters: 0.8 W/10 Hz, 0.8 W/20 Hz, 1.2 W/10 Hz, 1.2 W/20 Hz. The left sides of specimens were the control groups, and right sides were irradiated. A composite crown was built over bonded surfaces and stored in water (24 h at 37 degrees C). Specimens were sectioned vertically into slabs that were subjected to mu TBS testing and observed by SEM. Results: Control groups (27.81 +/- 1.38) showed statistically higher values than lased groups (21.37 +/- 0.99), and CSEB control group values (31.26 +/- 15.71) were statistically higher than those of SBMP (24.3 +/- 10.66). There were no significant differences between CSEB (20.34 +/- 10.01) and SBMP (22.43 +/- 9.82) lased groups. Among parameters tested, 0.8 W/10 Hz showed the highest value (25.54 +/- 11.74). Nd:YAG laser irradiation caused dentin to melt under the adhesive layer of both adhesive systems tested. Conclusion: With the parameters used in this study, Nd:YAG laser irradiation of the hybrid layer promoted morphological changes in dentin and negatively influenced the bond strength of both adhesive systems. | |
dc.language | eng | |
dc.publisher | QUINTESSENCE PUBLISHING CO INC | |
dc.relation | Journal of Adhesive Dentistry | |
dc.rights | Copyright QUINTESSENCE PUBLISHING CO INC | |
dc.rights | restrictedAccess | |
dc.subject | adhesion | |
dc.subject | dentin | |
dc.subject | microtensile bond strength | |
dc.subject | Nd:YAG laser | |
dc.subject | scanning electron microscopy | |
dc.title | Effects of Nd:YAG Laser Irradiation on the Hybrid Layer of Different Adhesive Systems | |
dc.type | Artículos de revistas | |