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Comparison of the fracture resistance of the teeth prepared with ProTaper Universal, ProTaper Next, and ProTaper Gold rotary files
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Comparison of the fracture resistance of the teeth prepared with ProTaper Universal, ProTaper Next, and ProTaper Gold rotary files
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Journal Article
Comparison of the fracture resistance of the teeth prepared with ProTaper Universal, ProTaper Next, and ProTaper Gold rotary files
2022
Overview
Objectives Root canal preparation can lead to cracks on the roots by creating stresses on the root canal walls, which decreases the fracture resistance of the tooth. The present study compared the fracture resistance of the teeth prepared by the ProTaper Universal (PTU), ProTaper Next (PTN), and ProTaper Gold (PTG) rotary file systems. Materials and Methods Fifty‐six single‐canal premolar teeth were sectioned 14 mm from the root apex. The roots were standardized based on the buccolingual and mesiodistal diameter and randomly assigned to three experimental (n = 14) and one control group (n = 14). The teeth in three experimental groups were instrumented with PTU, PTN, and PTG rotary files. The roots in the control group were not instrumented. A vertical force was applied to each root in a universal testing machine until the root fractured. The data were statistically analyzed by one‐way analysis of variance. Results There was no significant difference in the fracture resistance of the teeth between the control, PTU, PTN, and PTG groups (p = .115). Conclusions Root canal preparation with ProTaper files manufactured with conventional NiTi (PTU) and heat‐treated alloys (PTN and PTG) did not affect the fracture resistance of teeth.
Publisher
John Wiley & Sons, Inc,John Wiley and Sons Inc,Wiley
