Skip to main content

ROOT SURFACE STRAIN AND CRACKS DEVELOPMENT BY TWO RECIPROCATING NICKEL TITANIUM FILES

Research Authors
Tarek Medhat Elsewify* and H. M. Elhalaby**
Research Abstract

ABSTRACT

Aim: The aim of this study was to determine root surface strain (RSS) developed by two reciprocating NiTi files and the resultant cracks.

Materials and Methods: Thirty mesial roots of mandibular molars were used. Ten roots were prepared using AF Blue R3 Reciprocating One-File System (FBR) (Fanta; ShangHai, China) for the mesiobuccal canal and WaveOne Gold primary (WOG) (Dentsply Tulsa Dental; Tulsa, OK, USA) for the mesiolingual canal. Ten roots were prepared using WOG and ten roots using FBR. An electrical strain gauge was fixed on the root surface connected to a strain amplifier. Maximum strain and time were recorded. Roots were cut transversely to evaluate for cracks.

Results: WOG has developed RSS of (84.16±52.57) and cracks (2/10); FBR has developed RSS of (128.33±128.55) and cracks (5/10) without statistically significant difference. Preparation time of WOG was (55.28±26.24) which was statistically significantly less than FBR (109±57.3).

Conclusion: Both files have developed RSS and cracks during canal shaping.

Research Date
Research Department
Research File
Research Journal
EGYPTIAN DENTAL JOURNAL
Research Publisher
EGYPTIAN DENTAL JOURNAL
Research Rank
Local
Research Vol
66
Research Website
https://edj.journals.ekb.eg/article_120885.html
Research Year
2020
Research Pages
2689:2694