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Comparison of the post cementation efficacy using different cements and methods  

Cho, Ok-In (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
Lee, Sang-Jin (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
Park, Jeong-Kil (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
Hur, Bock (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
Kim, Hyeon-Cheol (Department of Conservative Dentistry, School of Dentistry, Pusan National University)
Publication Information
The Journal of the Korean dental association / v.48, no.9, 2010 , pp. 680-687 More about this Journal
Abstract
The purpose of this study was to compare post cementation efficacy according to the different adhesive systems and cement delivery methods. A total of 40 extracted human single-rooted premolar teeth were randomly divided in four groups according to the two luting agents of Unicem applicap (3M ESPE, St. Paul, MN, USA) or Variolink II (Ivoclar Vivadent, Liechtenstein) and cement delivery methods of direct cement application or lentulo spiral application. After restoration using glass?fiber posts, the samples were embedded in acrylic resin. Three sections of 2 mm thickness were prepared from each specimen, and the post in each section was subjected to a push-out test. The data were analysed statistically at significant level of 95%. The Unicem had significantly higher push-out bond strength than Variolink and the lentulo spiral application made higher bond strength (p<0.05). Adhesive failure between cement and dentin was predominant in all groups. The Unicem of self-etch system and cement delivery using lentulo spiral showed clinically acceptable and comparable bonding strength for the fiber post.
Keywords
bonding agent; fibre post; luting cement; push-out bond strength;
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