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In vitro evaluation of carrier based obturation technique: a CBCT study
Gianluca Gambarini1, Lucila Piasecki2, Giovanni Schianchi1
1Department of Oral and Maxillo-Facial Sciences, "Sapienza" University of Rome, Italy.
Annali Di Stomatologia
|August 4, 2016
Summary
Two carrier-based obturation (CBO) techniques, Soft-Core and Thermafil, demonstrated similar effectiveness in filling root canals three-dimensionally. Both methods showed comparable apical extrusion and void presence, indicating comparable clinical performance.
Area of Science:
- Endodontics
- Dental Materials Science
- Radiology
Background:
- Root canal therapy aims for complete three-dimensional obturation.
- Carrier-based obturation (CBO) techniques offer potential advantages in filling complex root canal systems.
- Comparing the efficacy of different CBO systems is crucial for clinical decision-making.
Purpose of the Study:
- To compare the effectiveness of Soft-Core and Thermafil carrier-based obturation techniques.
- To evaluate the ability of these techniques to reach working length and achieve three-dimensional root canal filling.
- To assess the prevalence of voids and apical extrusion using cone-beam computed tomography (CBCT).
Main Methods:
- Forty curved root canals were prepared and divided into two groups for obturation with either Soft-Core or Thermafil systems.
- Nickel-titanium instrumentation (size 25/.06 taper) was used for canal preparation.
- Cone-beam computed tomography (CBCT) was employed to analyze obturation quality, including apical extent and void detection.
Main Results:
- No statistically significant difference was observed between the Soft-Core and Thermafil groups regarding the mean distance of apical obturation.
- The incidence of overfilling was low in both groups (3 cases total).
- Both CBO techniques exhibited very low percentages of voids, with no significant difference between the groups.
Conclusions:
- Soft-Core and Thermafil carrier-based obturation techniques demonstrate comparable clinical performance in achieving three-dimensional root canal filling.
- The study found similar results for both techniques regarding working length attainment and void formation.
- Despite similar outcomes, Soft-Core obturators were often selected one size smaller than Thermafil obturators.
