Comparison of shaping ability of three different rotary instruments in simulated root canals using computer image analysis: An in vitro study

2015 ◽  
Vol 2 (1) ◽  
pp. 8
Author(s):  
SUma Maheswari ◽  
JonathanEmil Sam ◽  
AArvind Kumar ◽  
Jacob Raja ◽  
RGnana Seelan ◽  
...  
Keyword(s):  
Image Analysis ◽  
Computer Image ◽  
In Vitro Study ◽  
Vitro Study ◽  
Computer Image Analysis ◽  
Root Canals ◽  
Rotary Instruments ◽  
Shaping Ability

scholarly journals A comparative evaluation of the shaping ability of four different single-file systems in severely curved mesiobuccal root canals of mandibular first molars: An in vitro study

Endodontology ◽  
2021 ◽  
Vol 33 (1) ◽  
pp. 25
Author(s):  
VivekKumar Pathak ◽  
RajnishK Singhal ◽  
Anurag Jain ◽  
Saurabh Mankeliya ◽  
Kaushal Singh ◽  
...  
Keyword(s):  
Comparative Evaluation ◽  
File Systems ◽  
In Vitro Study ◽  
Vitro Study ◽  
Root Canals ◽  
Single File ◽  
Shaping Ability

scholarly journals Shaping Ability of Superelastic and Controlled Memory Nickel-Titanium File Systems: An In Vitro Study

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Raidan A. Ba-Hattab ◽  
Dieter Pahncke
Keyword(s):  
Thermomechanical Processing ◽  
File Systems ◽  
In Vitro Study ◽  
Nickel Titanium ◽  
Vitro Study ◽  
Root Canals ◽  
Niti Instruments ◽  
Niti Wires ◽  
Shaping Ability

Improvements in the thermomechanical processing procedures of NiTi wires have led to the development of new NiTi instruments that compose mainly of martensite crystals, making the wire stable at clinical condition. This study aimed at comparing the shaping ability of two rotary nickel-titanium systems manufactured from different NiTi wires. Twenty simulated root canals each with a curvature of 35° in resin blocks were divided into two groups of 10 canals each. Canals in the first group were prepared with superelastic F360 instruments (Gebr. Brasseler, Germany) while canals in the second group were prepared using controlled memory HyFlex®CM™ instruments (Coltène Whaledent, Switzerland). Images were taken before canal preparation and after the use of each instrument. The assessment of the canal shapes was accomplished with a computer image analysis program. Data were statistically analyzed using SPSS program. Within the limitation of this in vitro study, HyFlex®CM™ instruments remained better centered in the apical third of the canals. In most canal segments, no significant differences were observed between either system in the amount of material removed. Both systems were comparable to each other in regards to their ability to enlarge root canal in the same way without procedural errors.

scholarly journals The IG- file use to Gauge the Apical Diameter in Endodontics: An In Vitro Study

2018 ◽  
Vol 12 (1) ◽  
pp. 638-646 ◽  
Author(s):  
Massimo Amato ◽  
Alfredo Iandolo ◽  
Giuseppe Pantaleo ◽  
Dina Abtellatif ◽  
Michele Simeone ◽  
...  
Keyword(s):  
Measurement Accuracy ◽  
Reference Value ◽  
In Vitro Study ◽  
Vitro Study ◽  
Root Canals ◽  
New Instrument ◽  
Clinician Experience ◽  
Incorrect Measurement ◽  
The Difference

Aim: The aim of this study was to evaluate the efficacy of the IG-file, a new instrument designed for apical diameter gauging. Materials and Methods: After shaping with F1 Universal Protaper, 60 roots were randomly divided into two groups and assigned to two operators, One Expert in Endodontics (EO) and One Unexpert (UO). In each sample, after canal curvatures have been detected, the apical diameters were measured with the IG-file and the K-NiTi. The results were compared with the reference value obtained by retrograde apical gauging. The data were statistically analyzed. Results: Among 60 samples, 10% of errors were recorded when the IG-files were used; in the K-NiTi group the incorrect measurements were 70%. In both groups (expert and unexpert) the IG-file measurements were more accurate than the K-NiTi (90 vs 33 and 90 vs 26,7). The differences were statistically significant. In curved canals, the difference between measurement rates performed with both instruments was statistically significant (85,7% IG-file vs 28,6% K-NiTi) as well as for the samples without curvatures (92,3% IG file vs 30,8% NiTi file). In root canals without curvatures overestimation errors in K-NiTi file group are more frequent than underestimation errors. This difference was statistically significant. Conclusion: A proper gauging of the apical diameter has a key role in endodontic therapy; an incorrect measurement can lead to clinical failures. This “in vitro” study highlights that IG-file improves measurement accuracy independently from clinician experience. Furthermore, in curved canals, the IG-file is more accurate than K-NiTi.

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