Debris extrusion and foraminal deformation produced by reciprocating instruments made of thermally treated NiTi wires

To evaluate the amount of apically extruded debris, percentage of foraminal enlargement and apical foramen (AF) deformation that occurred during root canal preparation with different reciprocation systems: Reciproc, WaveOne (M-Wire), and ProDesign R (Shape Memory Technology Wire) at two different wo...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied oral science 2018-01, Vol.26, p.e20170215-e20170215
Main Authors: Frota, Myrna Maria Arcanjo, Bernardes, Ricardo Affonso, Vivan, Rodrigo Ricci, Vivacqua-Gomes, Nilton, Duarte, Marco Antonio Hungaro, Vasconcelos, Bruno Carvalho de
Format: Article
Language:English
Subjects:
Dental Instruments - adverse effects
Dentistry
DENTISTRY, ORAL SURGERY & MEDICINE
Endodontics
Equipment Design
Humans
Nickel
Nickel - chemistry
Original
Random Allocation
Reference Values
Reproducibility of Results
Root canal preparation
Root Canal Preparation - adverse effects
Root Canal Preparation - instrumentation
Root Canal Preparation - methods
Statistics, Nonparametric
Titanium
Titanium - chemistry
Tooth Apex - anatomy & histology
Tooth Apex - injuries
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:To evaluate the amount of apically extruded debris, percentage of foraminal enlargement and apical foramen (AF) deformation that occurred during root canal preparation with different reciprocation systems: Reciproc, WaveOne (M-Wire), and ProDesign R (Shape Memory Technology Wire) at two different working lengths (WLs): 0.0 and 1.0 mm beyond the AF. The AF of 120 root canals in 60 mesial roots of mandibular molars were photographed with stereomicroscope and randomly assigned into four groups: manual, Reciproc (REC), WaveOne (WO), and ProDesign R (PDR); subsequently, they were further subdivided according to the WL (n=15). Teeth were instrumented, coupled to a dual collecting chamber, and then another photograph of each AF was captured. Extrusion was analysed by determining the weight of extruded debris. Each AF diameter was measured in pre- and post-instrumentation images to determine deformation, which was analysed, and afterwards the final format of AFs was classified (circular/oval/deformed). We found no significant differences when analysing each system at different WLs. When considering each WL, REC and WO showed highest extrusion values (P
ISSN:1678-7757
1678-7765
1678-7765
DOI:10.1590/1678-7757-2017-0215