Effectiveness of different obturation techniques in surpassing the ledge formed in simulated curved canals
Braz. j. oral sci
; 12(2): 138-142, Apr.-June 2013. ilus
Article
in English
| LILACS, BBO - Dentistry
| ID: lil-694433
Responsible library:
BR218.1
ABSTRACT
Aim:
To compare the effectiveness of different obturation techniques in surpassing the ledgeformed in simulated curved root canals.Methods:
Eighty acrylic-resin blocks with curved canalswere instrumented with Gates-Glidden drills to simulate a ledge formation. Then, a K-File #10 wasused for trying to surpass the deviation, and the blocks that permitted surpassing were rejected.The remaining blocks were divided into 4 groups according to the obturation technique lateralcondensation, Taggers Hybrid technique, Thermafil and System B. The blocks had their imagesdigitalized using a scanner before and after the obturation procedures. The images were analyzedwith Image Tool 3.0 software. Statistical analysis was performed by one-way ANOVA at a significantlevel of 5%.Results:
The System B resulted in the highest obturated area (p<0.001). Therewere no significant differences between the Taggers Hybrid technique and Thermafil systemregarding the effectiveness in surpassing ledge (p>0.05). The lateral condensation resulted in theworst ability in filling the ledge space (p<0.001).Conclusions:
Within the limitations of this study,it was possible to conclude that techniques using heat condensation or gutta-perchathermoplastification were more effective in surpassing the ledge formed in curved canals than thelateral condensation.
Full text:
Available
Collection:
International databases
Database:
BBO - Dentistry
/
LILACS
Main subject:
Root Canal Filling Materials
/
Root Canal Obturation
/
Root Canal Therapy
/
Endodontics
Language:
English
Journal:
Braz. j. oral sci
Journal subject:
Dentistry
Year:
2013
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Federal University of Paraná/BR
/
Pontifical Catholic University of Paraná/BR
/
University of Campinas/BR