Comparison of canal transportation in simulated curved canals prepared with ProTaper Universal and ProTaper Gold systems
Silva Emmanuel Joao Nogueira Leal, Muniz Brenda Leite, Pires Frederico, Belladonna Felipe Goncalves, Neves Aline Almeida, Souza Erick Miranda, De-Deus Gustavo,
소속 상세정보
( Silva Emmanuel Joao Nogueira Leal ) - Rio de Janeiro State University and Grande Rio University School of Dentistry Department of Endodontics
( Muniz Brenda Leite ) - Grande Rio University School of Dentistry Department of Endodontics
( Pires Frederico ) - Grande Rio University School of Dentistry Department of Endodontics
( Belladonna Felipe Goncalves ) - Grande Rio University School of Dentistry Department of Endodontics
( Neves Aline Almeida ) - Rio de Janeiro Federal University Department of Paediactric Dentistry
( Souza Erick Miranda ) - Federal University of Maranhao School of Dentistry Department of Endodontics
( De-Deus Gustavo ) - Grande Rio University School of Dentistry Department of Endodontics
KMID : 1034420160410010001
Abstract
Objectives: The purpose of this study was to assess the ability of ProTaper Gold (PTG, Dentsply Maillefer) in maintaining the original profile of root canal anatomy. For that, ProTaper Universal (PTU, Dentsply Maillefer) was used as reference techniques for comparison.
Materials and Methods: Twenty simulated curved canals manufactured in clear resin blocks were randomly assigned to 2 groups (n = 10) according to the system used for canal instrumentation: PTU and PTG groups, upto F2 files (25/0.08). Color stereomicroscopic images from each block were taken exactly at the same position before and after instrumentation. All image processing and data analysis were performed with an open source program (FIJI). Evaluation of canal transportation was obtained for two independent canal regions: straight and curved levels. Student's t test was used with a cut-off for significance set at α = 5%.
Results: Instrumentation systems significantly influenced canal transportation (p < 0.0001). A significant interaction between instrumentation system and root canal level (p < 0.0001) was found. PTU and PTG systems produced similar canal transportation at the straight part, while PTG system resulted in lower canal transportation than PTU system at the curved part. Canal transportation was higher at the curved canal portion (p < 0.0001).
Conclusions: PTG system produced overall less canal transportation in the curved portion when compared to PTU system.
키워드
Canal transportation; Root canal instrumentation; ProTaper Gold
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