Online ISSN: 2515-8260

Keywords : WaveOne


Evaluation of apical extrusion of debris during endodontic instrumentation with continuous rotation and reciprocating motion

Anupriya Middha, Sahil Middha

European Journal of Molecular & Clinical Medicine, 2022, Volume 9, Issue 6, Pages 475-478

Background: Apical debris extrusion may be clinically associated with pain and/or swelling in the presence of an intense inflammatory response. The present study was to evaluate apical extrusion of debris during endodontic instrumentation with continuous rotation and reciprocating motion.
Materials & Methods: 60 extracted single-rooted mandibular premolar human teeth which were divided into 4 groups of 15 teeth each. The canals were instrumented with the following instrument systems: ProTaper Next, 2Shape, Reciproc Blue and WaveOne Gold. Apically extruded debris during instrumentation was collected into pre-weighed Eppendorf tubes. The Eppendorf tubes were then stored in an incubator at 70°C for 5 days. The weight of the dry extruded debris was done with Eppendorf tubes.
Results: The mean debris (grams) with 2shape was 0.047, Protaper next was 0.091, Reciproc Blue was 0.054 and WaveOne gold was 0.051. The difference was significant (P<0.05). Statistically significant difference was observed between TS and PTN, PTN and RB and PTN and WOG (P < 0.05).
Conclusion: All instruments were associated with apical extrusion of debris with TS rotary file system associated minimum extrusion and PTN, resulting in maximum extrusion of debris.

Evaluation of Canal Transportation and Centering Ability of Three Single File Systems

Renu Aggarwal, Rajnish Aggarwal, Anisha Aggarwal

European Journal of Molecular & Clinical Medicine, 2022, Volume 9, Issue 3, Pages 5256-5262

Introduction: The canal transportation is defined as as removing the structure of canal
wall on the outer curve in the apical half of the canal due to the fact that the rotary files
being used failed to restore themselves to their original linear shape during canal
shaping. The success of an endodontic treatment is determined majorly by the effective
biomechanical preparation and following the original anatomy of the root canal.
Materials and Methodology: For the study purpose, eighty mesio-buccal root canals
from human permanent mandibular first molars teeth which were extracted for various
periodontal reasons, caries free and non-carious lesion free accompanied by normal
anatomical form and structure were carefully selected. At once, the root canals were
prepared, CBCT series of images were taken for all the teeth. Both mesiodistal and
buccolingual diameters were recorded at 2mm, 3mm and 4 mm from the apex in both
the diagnostic and postoperative CBCT imaging.
Results: The Reciproc (Group I) system revealed the greatest canal transportation with
least centering ability when compared to other file systems that have been studied. The
observable difference in the canal transportation in the 3 groups was reported to be
statistically significant (p<0.001), except while comparing the 4 mm distance from the
root apex, the buccolingual transportation was not statistically significant between the
Reciproc and WaveOne groups (p = 0.591). In, OneShape rotary file system has
recorded the highest centering ability, while the Reciproc displayed the lowest under
certain experimental conditions.