scholarly journals Influence of cervical preflaring on apical transportation in curved root canals instrumented by reciprocating file systems

2015 ◽  
Vol 15 (1) ◽  
Author(s):  
Neisiana Barbieri ◽  
Denise Piotto Leonardi ◽  
Marina Samara Baechtold ◽  
Gisele Maria Correr ◽  
Marilisa Carneiro Leão Gabardo ◽  
...  
Keyword(s):  
File Systems ◽  
Root Canals ◽  
Apical Transportation ◽  
Curved Root Canals

Efficiency of Different Nickel-Titanium Endodontic File Systems in Cleaning and Apical Transportation of Simulated Curved Root Canals

2017 ◽  
Vol 68 (5) ◽  
pp. 957-961
Author(s):  
Andrea Csinszka Kovacs Ivacson ◽  
Mariana Pacurar ◽  
Monica Monea ◽  
Monika Kovacs ◽  
Mihai Pop ◽  
...  
Keyword(s):  
Root Canal ◽  
File Systems ◽  
Nickel Titanium ◽  
Endodontic Treatment ◽  
Root Canal Treatment ◽  
Cleaning Efficiency ◽  
Root Canals ◽  
Apical Transportation ◽  
Curved Root Canals ◽  
Reference Areas

The use of nickel-titanium instruments have become an important part of the root canal treatment, in order to facilitate the cleaning and shaping of root canals, because the incorrect utilization of the endodontic files during endodontic treatment may produce unwanted procedural errors. The aim of this study was to evaluate on simulated curved root canal models the cleaning efficiency and the apical transportation in three reference areas of the root canal files, ProTaper (Dentsply Maillefer), K3XF (Sybron Endo) and HyFlex (Coltene Endo) systems, compared to the hand K-files (DentsplyMaillefer). According to our results, rotary file systems are more efficient than the hand files, in cleaning the root canal.

scholarly journals Cone-beam Computed Tomographic Analysis of Canal Transportation and Centering Ability of Three Different Nickel-Titanium Rotary File Systems

2021 ◽  
Vol 9 (D) ◽  
pp. 30-36
Author(s):  
Balaji Sopanrao Kapse ◽  
Pradnya S. Nagmode ◽  
Jayshree Ramkrishna Vishwas ◽  
Hrishikesh B. Karpe ◽  
Harshal V. Basatwar ◽  
...  
Keyword(s):  
Root Canal ◽  
File System ◽  
File Systems ◽  
Nickel Titanium ◽  
Root Canals ◽  
Apical Transportation ◽  
Significant Difference ◽  
Canal Transportation ◽  
Curved Root Canals

AIM: The aim of the present study was to compare the canal transportation and centering ability of three rotary nickel-titanium file systems, HyFlex controlled memory, Revo-S, and Mtwo in moderately curved root canals using computed tomography (CT). MATERIALS AND METHODS: Thirty freshly extracted single-rooted teeth having curved root canals with at least 10°–20° of curvature were selected. The teeth were divided into three experimental groups of ten each. After preparation with HyFlex CM (Coltene-Whaledent, Allstetten, Switzerland), Revo-S (Micro-Mega, Besançon, France), and Mtwo (VDW, Munich, Germany) all teeth were scanned using CT to determine the root canal shape. Pre- and post-instrumentation images were obtained at three levels, 3 mm apical, 9 mm middle, and 15 mm coronal above the apical foramen were compared using CT software. Amount of transportation and centering ability were assessed. The three groups were statistically compared with analysis of variance and post-hoc Tukey’s honestly significant difference test. RESULTS: Least apical transportation and higher centering ability were seen in HyFlex CM file system in all the three sections followed by Revo-S, Mtwo file system showed maximum transportation. CONCLUSIONS: According to the present in-vitro study, we can conclude that HyFlex CM rotary file systems showed least canal transportation and highest centering ability as compared to Revo-S and Mtwo file system but there was no statistically significant difference among these file systems (p > 0.05) at coronal, middle, and apical level of root canal.

scholarly journals A micro-CT evaluation of the performance of rotary and reciprocating single-file systems in shaping ability of curved root canals

2020 ◽  
Vol 34 ◽  
Author(s):  
Manoel Damião SOUSA-NETO ◽  
Bruno Monguilhott CROZETA ◽  
Fabiane Carneiro LOPES ◽  
Jardel Francisco MAZZI-CHAVES ◽  
Rodrigo Dantas PEREIRA ◽  
...  
Keyword(s):  
File Systems ◽  
Micro Ct ◽  
Root Canals ◽  
Single File ◽  
Ct Evaluation ◽  
Shaping Ability ◽  
Curved Root Canals

scholarly journals Performance of RaCe Instrumentation System in Curved Root Canals: A Comprehensive Analysis by Three Study Methods

2013 ◽  
Vol 24 (3) ◽  
pp. 230-234 ◽  
Author(s):  
Denise Piotto Leonardi ◽  
Gilson Blitzkow Sydney ◽  
Mario Tanomaru Filho ◽  
Flares Baratto-Filho ◽  
Samantha Schaffer Pugsley Baratto ◽  
...  
Keyword(s):  
Root Canal ◽  
Histological Analysis ◽  
Wilcoxon Test ◽  
Study Methods ◽  
Root Canals ◽  
Working Length ◽  
Apical Transportation ◽  
Significant Difference ◽  
Canal Enlargement ◽  
Curved Root Canals

In this study, curved maxillary molar root canals were instrumented with RaCe rotary system to evaluate: 1. the occurrence of canal transportation using a radiographic platform; 2. the action of the instruments on the dentin walls, centering ability and canal enlargement by analysis of digital images; and the percentage of regular dentin surfaces and debris within the canal by histological analysis. Ten mesiobuccal roots of extracted human maxillary molars were embedded in acrylic resin and sectioned at the middle and apical thirds. Root canal shaping was performed using the RaCe rotary system at 250 rpm and 1 Ncm torque. Each instrument set was used five times according to a crown-down technique in the following sequence: 40/0.10, 35/0.08, 25/0.06, 25/0.04, 25/0.02 (working length - WL), 30/0.02 (WL) and 35/0.02 (WL). Each instrument was inserted until resistance was felt and then pulled back, followed by brushing movements towards all canal walls. Each specimen was assessed by three study methods: radiographic platform, digitized image assessment and histological analysis. The radiographic platform showed lack of apical transportation. No statistically significant difference (Wilcoxon test, p>0.05) was found between the middle and apical thirds regarding instrument action on dentin walls, centering ability, area of root canal enlargement, percentage of regular dentin surfaces and debris within the root canal. It may be concluded that RaCe system is a suitable method for the preparation of curved root canals, regarding the maintenance of root canal original path, action on dentin walls, canal enlargement and removal of debris from the root canal lumen.

Calcium hydroxide removal in curved root canals with apical transportation In Vitro

2014 ◽  
Vol 34 (4) ◽  
pp. 608-611 ◽  
Author(s):  
Ying Song ◽  
Jing-zhi Ma ◽  
Ru-yan Wang ◽  
Xue-dong Zhou ◽  
Ling Zou ◽  
...  
Keyword(s):  
Calcium Hydroxide ◽  
Root Canals ◽  
Apical Transportation ◽  
Calcium Hydroxide Removal ◽  
Curved Root Canals
Sign in / Sign up

Export Citation Format

Share Document