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A comparison of techniques for obturating oval-shaped root canals
Toshiko Ozawa1, Nessrin Taha, Harold H Messer
1Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan. ozawa-t@tsurumi-u.ac.jp
Dental Materials Journal
|August 11, 2009
Summary
This study found that Thermafil obturation resulted in less sealer cement in oval-shaped root canals compared to single cone or lateral condensation techniques. Single cone and lateral condensation showed comparable effectiveness in filling these canals.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Effective obturation of oval-shaped root canals is crucial for endodontic treatment success.
- Traditional obturation techniques may struggle to achieve complete fill in complex canal anatomies.
Purpose of the Study:
- To compare the effectiveness of three different obturation techniques in oval-shaped root canals.
- To evaluate the percentage of canal space filled by sealer cement and gutta-percha for each technique.
Main Methods:
- 42 extracted teeth with oval canals were prepared using ProTaper or Profile systems.
- Obturation was performed using single cone, Thermafil (thermoplastic), or lateral condensation techniques.
- Image analysis software quantified sealer cement and gutta-percha in coronal, middle, and apical thirds.
Main Results:
- The Thermafil group showed significantly less sealer cement in the middle and coronal thirds compared to single cone and lateral condensation.
- No significant differences in sealer cement presence were found between single cone and lateral condensation techniques.
- All techniques aimed to fill the prepared canal space with gutta-percha and sealer.
Conclusions:
- Thermafil technique may result in less sealer cement within oval canals compared to single cone and lateral condensation.
- Single cone and lateral condensation techniques demonstrate comparable effectiveness in obturating oval canals.
- Further research may explore long-term outcomes and specific clinical indications for each technique.
