In vitro Interrelationship between Apical Fill and Apical Leakage Using Three Different Obturation Techniques

Area of Science:

• Endodontics
• Dental Materials Science

Background:

• Root canal therapy aims for a hermetic seal to prevent reinfection.
• Apical leakage remains a challenge, influenced by obturation techniques.

Purpose of the Study:

• To compare apical leakage and fill using Single Cone, Ultrafil 3D, and lateral condensation obturation techniques.
• To evaluate the effectiveness of different obturation methods in achieving a complete apical seal.

Main Methods:

• Sixty-six premolars were obturated using Single Cone, Ultrafil 3D, or lateral condensation with HyFlex CM and AH Plus sealer.
• Apical leakage was assessed using fluid filtration, and fill was examined spectroscopically at 2mm and 4mm from the apex.

Main Results:

• Lateral condensation showed the highest mean apical leakage.
• The Single Cone technique resulted in a greater apical fill at both 2mm and 4mm distances.

Conclusions:

• Single Cone obturation provides a more effective three-dimensional apical seal with reduced leakage.
• This technique shows promise for improved long-term outcomes in root canal treatments.