Original Article
Effect of Intracanal Post Space Treatments on Push-Out Bond Strength of Fiber Posts to Root Dentin Hamid Kermanshah 1 , Behnam Bolhari 2 , Faraz Sedaghat 3 , Ladan Ranjbar Omrani 4
1
Associate Professor, Department of Operative Dentistry, School of Dentistry, T ehran University of Medical Sciences, T ehran, Iran Associate Professor, Department of Endodontics, School of Dentistry, T ehran University of Medical Sciences, T ehran, Iran 3 Assistant Professor, Department of Endodontics, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran 4 Assistant Professor, Head of Dental Students Research Center, Department of Operative Dentistry, School of Dentistry, T ehran University of Medical Sciences, T ehran, Iran 2
Abstract
Corresponding author: L. Ranjbar Omrani, Head of Dental Students Research Center, Operative Dentistry Department, Dental School, T ehran University of Medical Sciences, T ehran, Iran [email protected] Received: 2 September 2016 Accepted: 9 December 2016
Objectives: The main disadvantage of fiber posts is their low bond strength to root canal wall. The aim of the present study was to assess the effect of different root canal post space treatments on push-out bond strength of fiber posts to root canal dentin. Materials and Methods: After post space preparation in 40 endodontically treated human premolars, the teeth were randomly divided into four experimental groups: Group 1: control group, group 2: Endsolv R, group 3: ultrasonic cleaning, group 4: Clearfil Repair. Afterwards, the posts were bonded with Panavia F 2.0 bonding cement. The bond strength of fiber posts to root canal wall in the middle part of canal was evaluated followin g thermocycling using push-out test. Data were analyzed using one-way ANOVA and Tamhane’s multiple comparisons test. The failure mode of each group was determined under a stereomicroscope. Results: There was a significant difference in the mean push-out bond strength among the groups (P
Effect of Intracanal Post Space Treatments on Push-Out Bond Strength of Fiber Posts to Root Dentin Hamid Kermanshah 1 , Behnam Bolhari 2 , Faraz Sedaghat 3 , Ladan Ranjbar Omrani 4
1
Associate Professor, Department of Operative Dentistry, School of Dentistry, T ehran University of Medical Sciences, T ehran, Iran Associate Professor, Department of Endodontics, School of Dentistry, T ehran University of Medical Sciences, T ehran, Iran 3 Assistant Professor, Department of Endodontics, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran 4 Assistant Professor, Head of Dental Students Research Center, Department of Operative Dentistry, School of Dentistry, T ehran University of Medical Sciences, T ehran, Iran 2
Abstract
Corresponding author: L. Ranjbar Omrani, Head of Dental Students Research Center, Operative Dentistry Department, Dental School, T ehran University of Medical Sciences, T ehran, Iran [email protected] Received: 2 September 2016 Accepted: 9 December 2016
Objectives: The main disadvantage of fiber posts is their low bond strength to root canal wall. The aim of the present study was to assess the effect of different root canal post space treatments on push-out bond strength of fiber posts to root canal dentin. Materials and Methods: After post space preparation in 40 endodontically treated human premolars, the teeth were randomly divided into four experimental groups: Group 1: control group, group 2: Endsolv R, group 3: ultrasonic cleaning, group 4: Clearfil Repair. Afterwards, the posts were bonded with Panavia F 2.0 bonding cement. The bond strength of fiber posts to root canal wall in the middle part of canal was evaluated followin g thermocycling using push-out test. Data were analyzed using one-way ANOVA and Tamhane’s multiple comparisons test. The failure mode of each group was determined under a stereomicroscope. Results: There was a significant difference in the mean push-out bond strength among the groups (P
