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Incidence of Dentinal Crack after Root Canal Preparation by ProTaper Universal, Neolix and SafeSider Systems.
- Source :
- Iranian Endodontic Journal; Fall2017, Vol. 12 Issue 4, p432-438, 7p
- Publication Year :
- 2017
-
Abstract
- Introduction: This study aimed to compare the incidence of dentinal crack formation by instrumentation with ProTaper Universal system (rotary, multi-file system), SafeSider (reciprocation movement, multi-file system) and Neolix (rotary, single-file system). Methods and Materials: In this in vitro study, 60 freshly extracted mandibular first molars were randomly divided into three experimental groups (n=15) and a control group containing unprepared teeth (n=15). Instrumentation in different groups was accomplished using either ProTaper, Neolix or SafeSider systems up to 25/0.08. The teeth were then sectioned at 3, 6 and 9 mm from the apex, and observed under a stereomicroscope for presence of dentinal cracks. Data were analyzed with Chi square test, Fisher’s exact test and Bonferroni correction. Results: Micro cracks were seen in all experimental groups (13.3% in ProTaper, 26.7% in SafeSider and 40% in Neolix). There was a significant difference between Neolix and the control groups in microcrack formation (P=0.042). Micro cracks mainly occurred in the coronal section (9 mm). No microcrack occurred in the control group. Conclusion: Neolix rotary single-file system caused more dentinal cracks compared to the unprepared roots. All the instrumentation systems increased the number of micro cracks compared to unprepared teeth. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17357497
- Volume :
- 12
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Iranian Endodontic Journal
- Publication Type :
- Academic Journal
- Accession number :
- 125614603
- Full Text :
- https://doi.org/10.22037/iej.v12i4.17597