Özet:

The aim of this study is to study the effects of two different rotating curve systems on the original root channel curve by comparing with three different root channel curve measurement techniques. Method and Requirements: Thirty pieces of the drawn undercheck are equally divided into two groups to be formed by Mtwo or ProTaper, the meshiobucal channels of the first and second large small teeth. The teeth were taken pre-operative radiographs after being buried in a transparent acrylic resin. Both curves of the rotating curve system are used according to the manufacturer's company's instructions. The angle and linear values of the start and post-processing channels are calculated through radiographs using the AutoCAD R12 program. FUNDATIONS: In both groups, the post-extension channel entrance angles (CAA) and the Scheider angles (SA) have significantly decreased (p≤ 0.005). The post-extension AC length (the distance between the point with the channel entrance and the long edge of the channel) only increased significantly in the ProTaper group (p=0.005). NOTHING AND RESULT: The absence of changes in the AC length in the Mtwo group indicates that it retains the original curve of the channel. To measure the changes in the canal curves after the root channel formation, the CAA and SA angles, as well as the AC length after the processing, should be measured.

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