Effect of Different Tapered Gutta Percha Cones in Apical Microleakage of Human Root Canal Obturation

Authors

  • Bagheri, Farshad Resident in Oral and Maxillofacial Radiology, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
  • Omidi, Salma Assistant Professor, Department of Endodontics, Faculty of Dentistry, Mazandaran University of Medical Sciences, Sari, Iran
  • Rafiei, Alireza Professor, Department of Immunology, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
  • Yazdani Charati, Jamshid Associate Professor, Department of Biostatistics, Health Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran
Abstract:

Background and purpose: Gutta-percha is generally accepted as the main canal filler. Standard gutta-percha cones are available in 2-10% tapers. The purpose of this study was to compare apical microleakage of canals obturated with different tapers of gutta-percha, using the protein penetration technique. Materials and methods: In this study, 96 maxillary anterior teeth were selected and were prepared by protaper rotary files. The teeth were divided into six experimental groups (n=15) and two control groups (n=3). All groups were obturated with different tapered master cone (2-4-6%) and accessory cone (2-4%) by lateral condensation technique. Protein microleakage was measured in each sample. Data was analyzed applying Kruskal-Wallis test and Mann Whitney test. Results: Statistical analysis showed significant differences between all experimental groups (P<0.001). The least levels of microleakage were seen in the group treated with 2% master cone and 2% accessory cone, while the highest levels were found in teeth obturated with 4% master cone and 2% accessory cone. Conclusion: In this study, 2% master cone and 2% accessory cone caused least microleakage, but the 6% master cone and 4% accessory cone also showed good results.  

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Journal title

volume 29  issue 181

pages  61- 72

publication date 2020-02

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