Sealing ability of a new carrier-based obturating material

Area of Science:

• Endodontics
• Dental Materials Science
• Biomaterials

Background:

• Root canal treatment aims to eliminate intraradicular infection and prevent reinfection.
• Effective coronal seal is crucial for long-term success of endodontic therapy.
• Gutta-percha has been the traditional root canal filling material, but newer materials are being developed.

Purpose of the Study:

• To evaluate the in vitro sealing ability of a novel obturating material, Real Seal 1 (RS1).
• To compare the sealing performance of RS1 against established systems: Thermafil and One-Step.
• To quantitatively assess microleakage in root-filled teeth using different obturation techniques.

Main Methods:

• Forty-four extracted lower premolars underwent root canal treatment using a crown-down Nickel-Titanium rotary preparation.
• Teeth were randomized into three experimental groups (N.=14) for Thermafil, One-Step, and Real Seal 1 obturation.
• Microleakage was quantitatively assessed using a fluid filtration system, with statistical analysis performed using ANOVA.

Main Results:

• Real Seal 1 (RS1) exhibited minimal leakage after 24 hours, outperforming Thermafil and One-Step systems.
• Statistical analysis revealed a significant difference in sealing ability favoring the RS1 group.
• A higher number of teeth in the RS1 group (8/14) showed zero leakage compared to Thermafil (1/14) and One-Step (1/14).

Conclusions:

• The carrier-based Resilon material (RS1) demonstrated excellent preliminary results in sealing ability at 24 hours.
• RS1 showed significantly better sealing performance than traditional carrier-based gutta-percha systems in this in vitro study.
• The findings suggest RS1 as a promising alternative for root canal obturation.