Assessment of Mechanical Root Canal Preparation with Centric Reciprocating or Eccentric Rotary Kinematics: A Micro–computed Tomographic Study
| Autor: | Priscilla Oliveira Fonseca Fernandes, Basilio Rodrigues Vieira, Giulio Gavini, Mario Luis Zuolo, Elaine Faga Iglecias, Laila Gonzales Freire |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Orthodontics Molar Root canal Significant difference X-Ray Microtomography 030206 dentistry Kinematics Biomechanical Phenomena Computed tomographic 03 medical and health sciences Reciprocating motion 030104 developmental biology 0302 clinical medicine medicine.anatomical_structure Belgium medicine Dentin Foramen Humans Dental Pulp Cavity General Dentistry Root Canal Preparation Geology |
| Zdroj: | Journal of Endodontics. 46:1309-1316 |
| ISSN: | 0099-2399 |
| DOI: | 10.1016/j.joen.2020.06.005 |
| Popis: | The aim of this study was to compare, using micro-computed tomographic imaging, the preparation of mesial canals of mandibular molars with the Reciproc (VDW GmbH, Munich, Germany) and XP-endo Shaper (FKG, La Chaux-de-Fonds, Switzerland) systems, evaluating changes in dentin and canal volume, the percentage of untouched walls, the volume of accumulated hard tissue debris, and root canal deviation in the apical third.Twenty-four mandibular molars with 2 mesial root canals and a single foramen were anatomically paired and divided into 2 experimental groups (n = 12) according to the system used. The specimens were scanned before and after preparation with the SkyScan 1176 microtomographic scanner (Bruker-microCT, Kontich, Belgium) at a resolution of 17.42 μm. The resulting data were statistically compared at a significance level of 5% using the Student t test and the Mann-Whitney test.A significant difference was observed in the untouched surface area for the total canal and the cervical and middle thirds, with the lowest untouched surface area in the XP-endo Shaper group (P.05). The volume of accumulated hard tissue debris was significantly higher in the Reciproc group in the total canal as well as in the middle and apical thirds. There was no significant difference between the groups regarding the volume of dentin removed or the increase in canal volume and surface area (P.05).The XP-endo Shaper touched more walls and left less accumulated hard tissue debris in the root canal system than the Reciproc group. Although the XP-endo Shaper showed superior results, neither system was able to fully prepare the root canal. |
| Databáze: | OpenAIRE |
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