Comparison of root dentinal crack formation after coronal pre-flaring using different rotary instruments: An In vitro Study

Comparison of root dentinal crack formation after coronal pre-flaring using different rotary instruments: An In vitro Study

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Background and Objectives: The aim of this study was to see the incidence of cracks in root dentin after coronal flaring using various rotary instruments such as Gates Glidden (GG) drills, ProTaper Universal SX, OneFlare, and HyFlex EDM.Materials and Methods: Seventy freshly extracted premolar teeth with single canal were collected.All the teeth were randomly divided into five groups of fourteen each (n heelbo website = 14), of which one group served as the control and the rest of the four groups were instrumented with GG drills, ProTaper Universal SX, OneFlare, and HyFlex EDM, respectively.Results: The GG drills resulted in a higher rate of crack formation in root dentin (P 0.05).

Conclusion: The use of GG drills resulted in more crack formation.However, the results for the ProTaper Universal SX, OneFlare, and HyFlex EDM flaring instruments were less in opi do you sea what i sea terms of crack formation.