Dental Science - Original Article Scanning electron microscopic study of teeth restored with fiber posts and composite resin: An in vitro study K. S. Sridhara, Sunil Mankar1, C. M. Jayshankar2, K. Vinaya3
Department of Conservative Dentistry, Krishnadevaraya College of Dental Sciences, Bengaluru, 2Siddartha Dental College and Hospital, Tumkur, 1 DAPMRV Dental College and Hospital 3Department of Prosthodontics, M. R. Ambedkar Dental College and Hospital, Bengaluru, Karnataka, India Address for correspondence: Dr. Sunil Mankar, E‑mail: drsmankar@gmail. com Received : 30-03-14 Review completed : 30-03-14 Accepted : 09-04-14
ABSTRACT
Aims and Objectives: The aim of this study is to compare and evaluate the thickness of resin dentin interface zones (RDIZ) obtained by luting carbon fiber post to intra‑radicular dentin, either with All‑Bond 2 bonding agent and C and B composite cement or Panavia F dentin‑bonding system and Panavia F resin cement. Materials and Methods: Twenty single rooted mandibular premolars of similar sizes were prepared for the carbon fiber post after biomechanical preparation and obturation. They were divided into two groups, Group 1 and 2 of 10 samples each. Carbon fiber posts used for Group 1 samples were luted using All‑Bond 2 and C and B cement. For Group 2 carbon fiber posts were luted using Panavia F dentin‑bonding system and Panavia F resin cement. All the 20 samples were sectioned longitudinally and marked at three points on the length of the tooth from the dentin‑core interface to the apex at 2 mm, 5 mm, and 8 mm to get coronal, middle, and apical areas, respectively. The formation and thickness (width) of the RDIZ at the marked areas was evaluated by scanning electron microscope using ×1000 magnification. The results were statistical analyzed. Results: Irrespective of the adhesive systems used all specimens showed a RDIZ formation. Microscopic examination of Group 1 showed significantly higher percentage of RDIZ (P
Department of Conservative Dentistry, Krishnadevaraya College of Dental Sciences, Bengaluru, 2Siddartha Dental College and Hospital, Tumkur, 1 DAPMRV Dental College and Hospital 3Department of Prosthodontics, M. R. Ambedkar Dental College and Hospital, Bengaluru, Karnataka, India Address for correspondence: Dr. Sunil Mankar, E‑mail: drsmankar@gmail. com Received : 30-03-14 Review completed : 30-03-14 Accepted : 09-04-14
ABSTRACT
Aims and Objectives: The aim of this study is to compare and evaluate the thickness of resin dentin interface zones (RDIZ) obtained by luting carbon fiber post to intra‑radicular dentin, either with All‑Bond 2 bonding agent and C and B composite cement or Panavia F dentin‑bonding system and Panavia F resin cement. Materials and Methods: Twenty single rooted mandibular premolars of similar sizes were prepared for the carbon fiber post after biomechanical preparation and obturation. They were divided into two groups, Group 1 and 2 of 10 samples each. Carbon fiber posts used for Group 1 samples were luted using All‑Bond 2 and C and B cement. For Group 2 carbon fiber posts were luted using Panavia F dentin‑bonding system and Panavia F resin cement. All the 20 samples were sectioned longitudinally and marked at three points on the length of the tooth from the dentin‑core interface to the apex at 2 mm, 5 mm, and 8 mm to get coronal, middle, and apical areas, respectively. The formation and thickness (width) of the RDIZ at the marked areas was evaluated by scanning electron microscope using ×1000 magnification. The results were statistical analyzed. Results: Irrespective of the adhesive systems used all specimens showed a RDIZ formation. Microscopic examination of Group 1 showed significantly higher percentage of RDIZ (P
