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Year : 2014  |  Volume : 6  |  Issue : 5  |  Page : 74-79

Scanning electron microscopic study of teeth restored with fiber posts and composite resin: An in vitro study

1 Department of Conservative Dentistry, Krishnadevaraya College of Dental Sciences, Bengaluru, Karnataka, India
2 DAPMRV Dental College and Hospital, Bengaluru, Karnataka, India
3 Siddartha Dental College and Hospital, Tumkur, Karnataka, India
4 Department of Prosthodontics, M. R. Ambedkar Dental College and Hospital, Bengaluru, Karnataka, India

Correspondence Address:
Dr. Sunil Mankar
DAPMRV Dental College and Hospital, Bengaluru, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-7406.137392

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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 < 0.05) than Group 2. RDIZ morphology was easily detectable at coronal and middle areas of all specimens. Conclusion: All-Bond 2 showed denser and wider RDIZ compared with the Panavia F.

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