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http://dx.doi.org/10.5395/JKACD.2008.33.3.213

Shear bond strength of dentin bonding agents cured with a plasma arc curing light  

Kwon, Young-Chul (Department of Conservative Dentistry & Dental Research Institute, School of Dentistry, Seoul National University)
Kim, Sun-Young (Department of Conservative Dentistry & Dental Research Institute, School of Dentistry, Seoul National University)
Chung, Sae-Joon (Department of Conservative Dentistry & Dental Research Institute, School of Dentistry, Seoul National University)
Han, Young-Chul (Department of Conservative Dentistry & Dental Research Institute, School of Dentistry, Seoul National University)
Lee, In-Bog (Department of Conservative Dentistry & Dental Research Institute, School of Dentistry, Seoul National University)
Son, Ho-Hyun (Department of Conservative Dentistry & Dental Research Institute, School of Dentistry, Seoul National University)
Um, Chung-Moon (Department of Conservative Dentistry & Dental Research Institute, School of Dentistry, Seoul National University)
Cho, Byeong-Hoon (Department of Conservative Dentistry & Dental Research Institute, School of Dentistry, Seoul National University)
Publication Information
Restorative Dentistry and Endodontics / v.33, no.3, 2008 , pp. 213-223 More about this Journal
Abstract
The objective of this study was to compare dentin shear bond strength (DSBS) of dentin bonding agents (DBAs) cured with a plasma arc (PAC) light curing unit (LCU) and those cured with a light emitting diode (LED) LCU. Optical properties were also analyzed for Elipar freelight 2 (3M ESPE); LED LCU, Apollo 95E (DMT Systems); PAC LCU and VIP Junior (Bisco); Halogen LCU. The DBAs used for DSBS test were Scotchbond Multipurpose (3M ESPE), Singlebond 2 (3M ESPE) and Clearfil SE Bond (Kuraray). After DSBS testing, fractured specimens were analyzed for failure modes with SEM. The total irradiance and irradiance between 450 nm and 490 nm of the LCUs were different. LED LCU showed narrow spectral distribution around its peak at 462 nm whereas PAC and Halogen LCU showed a broad spectrum. There were no significant differences in mean shear bond strength among different LCUs (P > 0.05) but were significant differences among different DBAs (P < 0.001)
Keywords
PAC; LED; Dentin bonding agent; Spectral irradiance; Energy density; Dentin shear bond strength;
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