Obturation of internally prepared cavities (simulating internal resorption) with three different techniques

Authors

  • Media A. Saeed Department of Conservative Dentistry, College of Dentistry, Hawler Medical University, Erbil, Iraq.
  • Raid F. Salman Department of Conservative Dentistry, College of Dentistry, Hawler Medical University, Erbil, Iraq.

DOI:

https://doi.org/10.15218/zjms.2011.016

Keywords:

Dental caries, salivary flow rate, pH, saliva, microorganisms, oral hygiene

Abstract

Background and objectives:There is controversy as to which instrumentation and/or obturation techniques to choose for the treatment of the internal resorption defects. This in vitro study compared the instrumentation and obturation quality of simulated internal resorption cavities (IRC) with 3 different techniques.

Methods:Ninety extracted human roots were used and sectioned transversely 5 mm from the apex and hemi-circular cavities were prepared in both sections. The sections were glued back together using superglue and embedded in plaster mold, thus obtaining root canals with cavities simulating internal resorption. The samples were randomly divided into 3 groups of 30 roots and instrumented by pro-taper rotary files, hybrid technique, or step-back technique, then each group subdivided into three subgroups of 10 roots and obturated with cold lateral condensation, warm vertical compaction, or injectable thermo-plasticized technique. After obturation, the samples were radio-graphed in Bucco-lingual and Mesio-distal view. After that, the plaster molds were removed, and the samples were then sectioned at the previous level and the quality of the obturation of the IRC were viewed under stereomicroscope.

Results: There was highly significant difference between pro-taper rotary files compared with hybrid and step-back techniques. The results of obturation techniques radiographically and by stereomicroscope showed that there was highly significant difference in between injectable thermo-plasticized compared with other two techniques.

Conclusion:The pro-taper rotary files and injectable thermo-plasticized technique gave the best results for treatment of simulated internal resorption cavities (IRC).

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References

Penick E. The endodontic management of root resorption. Oral Surgery, Oral Medicine, Oral Pathology 1963; 16: 344-352. Abs.

Bellizzi R., Ciao W. Endodontic management of extensive internal root resorption Report of a case. Oral Surgery, Oral Medicine, Oral Pathology 1980; 49(2): 162-165. Abs.

Skaljac-Staudt G., Katunaric M., Kardum M. Internal Resorption, Therapy and Filling. Acta Stomat Croat 2000; 34(4): 431-433.

Goldberg F., Massone E., Esmoris M., Alfie D. Comparison of different techniques for obturating experimental internal resorptive cavities. Dental Traumatology 2000; 16(3):116-121. Abs.

Wilson P., Barnes I. Treatment of internal root resorption with thermo-plasticized gutta-percha. A case report. Int. Endod. J. 1987; 20: 94-7.

Sonntag D., Delschen S., Stachniss V. Root-canal shaping with manual and rotary Ni-Ti files performed by students. Int Endod J 2003; 36: 715-723.

Glossen C., Haller R., Dove S., del Rio C. A comparison of root canal preparations using Ni-Ti hand, Ni-Ti engine-driven, and K-flex endodontic instruments. J Endod 1995; 21: 146–51.

Shabahang S. State of the art and science of endodontics. JADA 2005; 136: 41-52.

Cohen S., Burns R. Pathways of the pulp. 8th ed. Mosby. 2002.

Shetty K., Chandra S. An In-vitro Evaluation of Volumetric Dye Penetration Observed with Quick Fil, Lateral condensation, Modifiedtrifecta, Single Cone, and No Obturation Preceded by Sodium Hypochlorite and E.D.T.A. Endodontology 2006; 18:5-10.

Gutmann J. Adaptation of injected thermo-plasticized gutta-percha in the absence of smear layer. Int Endod J. 1993; 26(2):87-92.

Kqiku L., Weiglein A., Städtler P. A Comparative Study of Five Different Obturation Techniques. Acta Stomatol Croat. 2006; 40(1):3-11.

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Published

2011-08-01

How to Cite

Saeed, M. A., & Salman, R. F. (2011). Obturation of internally prepared cavities (simulating internal resorption) with three different techniques. Zanco Journal of Medical Sciences (Zanco J Med Sci), 15(2), 21–28. https://doi.org/10.15218/zjms.2011.016

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Original Articles