An In Vitro Evaluation of Apical Microleakage of Single Cone Obturation Versus Lateral Condensation Obturation Technique | [Journal of Dow University of Health Sciences • 2010]

Author(s):

1. Khurram Parvez: . Department of Science ofDental Materials, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Dow University ofHealth Sciences,Karachi,Pakistan

2. Syed Yawar Ali Abidi: Department of Operative Dentistry, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Dow University ofHealth Sciences, Karachi,Pakistan.

3. Fazalur Rahm an Qazi: Department of Operative Dentistry, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Dow University ofHealth Sciences, Karachi, Pakistan

4. Shahbaz Ahmad: Department of Operative Dentistry, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Dow University ofHealth Sciences, Karachi, Pakistan

5. Noor-ul-Ain Jawaed: Department of Operative Dentistry, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Dow University ofHealth Sciences, Karachi, Pakistan

Abstract:

Introduction: The aim o f this in-vitro study was to use dye penetration m ethod to compare the apical m icroleakage o f m atched taper single-cone and cold lateral condensation technique in teeth prepared w ith ProTaper instruments. Materials and Methods: Eighty (80) human extracted single rooted teeth were used.The teeth were randomly divided into two experimental groups o f thirty (30) teeth each and two negative and positive control groups o f ten (10) teeth each. The groups were as follows: Group I, Teeth were obturated using single cone obturation technique; Group II, Teeth were obturated using a cold lateral condensation technique. In positive control Group; teeth were instrumented and left unobturated, whwre as in negative control Group, teeth were instrumented and five (5) teeth were obturated with single cone obturation technique and five (5) teeth with the Lateral condensation technique.The access cavities o f all teeth were obturated with Ketac M olar (3M ESPE) to ensure a coronal seal. The specimens were stored for 24 hours in 100% humidity at 37OC to allow the sealer to set. After that the surface o f all roots in experimental and positive control groups were then covered with two layers o f nail polish, except for the apical area (2mm). In the negative control group all surfaces o f the roots, including the apical area, were covered with two layers o f nail polish. Each tooth was subsequently immersed in a freshly prepared 5% aqueous methylene blue dye solution (PH 7.0) at 37OC for seven days, and stored in incubator. Following storage, the roots were cut along their long axis and evaluated under a stereomicroscope to measure the depth o f dye penetration. Results: The negative controls showed no dye penetration while, the positive controls showed completely dye penetration. M ean and standard deviation o f leakage for experimental groups were, for Single Cone Obturation, 6.42 (SD ±3.18), for Lateral Condensation Obturation, 6.44 (SD±1.8). There was no significant difference betw een the two groups (p=0.245). Conclusion: Both the single cone and the lateral condensation obturation techniques proved equally effective in achieving the apical seal.

Page(s): 58-63

DOI: DOI not available

Published: Journal: Journal of Dow University of Health Sciences, Volume: 4, Issue: 2, Year: 2010

Keywords:

Protaper endodontic files , single cone obturation

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