Comparison of Apical Transportation with the Use of Rotary System and Reciprocating Handpiece with Precurved Hand Files: An In Vitro Study

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MOHAMMADIAN FATEMEH; Sadeghi Atefeh; DIBAJI FATEMEH; SADEGH MONA; GHONCHEH ZAHRA; KHARRAZIFARD MOHAMMAD JAVAD

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Journal: Iranian Endodontic Journal Year:2017 | Volume:12 | Issue:4 Page(s): 462-467

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Title

Comparison of Apical Transportation with the Use of Rotary System and Reciprocating Handpiece with Precurved Hand Files: An In Vitro Study

Author(s)

Keywords

Canal Transportation

RaCe Instruments

Reciprocating Handpiece

Abstract

Introduction: Success of root canal treatment depends on several factors; among which, maintaining the original canal path during mechanical preparation is extremely important. This in vitro study aimed to compare apical transportation using RaCe NiTi rotary system and precurved stainless steel (SS) hand files in a Reciprocating Handpiece. Methods and Materials: Mesiobuccal canals of 40 extracted human mandibular first and second molars with 20 to 45° curvatures and 3 to 7 mm curve radius were chosen for this study. After working length determination, the teeth were divided into two groups (n=20). Root canals were prepared with RaCe in group 1 and NSK handpiece and precurved SS hand files in group 2 up to #30 with 2% taper in both groups. Radiographs were taken of teeth before and after instrumentation from buccolingual and mesiodistal directions. The images were superimposed using Adobe Photoshop CS3 software. Degree of straightening and amount of apical transportation at 0, 0. 5, 1, 2, 3, 4 and 5 mm levels short of the working length were determined using digital subtraction radiography. The student’ s t test was used to compare the degree of straightening and Mann Whitney test was applied to compare apical transportation (millimeters) between the two groups. Results: No significant difference was noted between the two groups on buccolingual or mesiodistal views in degree of straightening and apical transportation on buccolingual view (P>0. 05). However, on mesiodistal view, NSK Reciprocating Handpiece caused greater apical transportation at 0. 0. 5 and 1 mm levels (P<0. 05). Conclusion: The RaCe system and precurved SS files in Reciprocating Handpiece were highly similar in terms of degree of straightening and apical transportation. Thus, engine-driven NSK Reciprocating Handpiece can be used as an efficient adjunct for root canal preparation.

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APA: Copy

MOHAMMADIAN, FATEMEH, Sadeghi, Atefeh, DIBAJI, FATEMEH, SADEGH, MONA, GHONCHEH, ZAHRA, & KHARRAZIFARD, MOHAMMAD JAVAD. (2017). Comparison of Apical Transportation with the Use of Rotary System and Reciprocating Handpiece with Precurved Hand Files: An In Vitro Study. IRANIAN ENDODONTIC JOURNAL (IEJ), 12(4), 462-467. SID. https://sid.ir/paper/303082/en

Vancouver: Copy

MOHAMMADIAN FATEMEH, Sadeghi Atefeh, DIBAJI FATEMEH, SADEGH MONA, GHONCHEH ZAHRA, KHARRAZIFARD MOHAMMAD JAVAD. Comparison of Apical Transportation with the Use of Rotary System and Reciprocating Handpiece with Precurved Hand Files: An In Vitro Study. IRANIAN ENDODONTIC JOURNAL (IEJ)[Internet]. 2017;12(4):462-467. Available from: https://sid.ir/paper/303082/en

IEEE: Copy

FATEMEH MOHAMMADIAN, Atefeh Sadeghi, FATEMEH DIBAJI, MONA SADEGH, ZAHRA GHONCHEH, and MOHAMMAD JAVAD KHARRAZIFARD, “Comparison of Apical Transportation with the Use of Rotary System and Reciprocating Handpiece with Precurved Hand Files: An In Vitro Study,” IRANIAN ENDODONTIC JOURNAL (IEJ), vol. 12, no. 4, pp. 462–467, 2017, [Online]. Available: https://sid.ir/paper/303082/en

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