[Application of cold flowable gutta-percha in root canal obturation after apexification]

Area of Science:

• Endodontics
• Dental Materials Science

Background:

• Apexification is crucial for immature permanent teeth with pulp pathology.
• Effective root canal obturation is vital for long-term treatment success.
• Gutta-percha is a standard obturation material, with various delivery techniques available.

Purpose of the Study:

• To compare the clinical efficacy of cold flowable gutta-percha versus warm gutta-percha for root canal obturation in young permanent teeth after apexification.
• To evaluate obturation quality, operation time, and patient comfort.

Main Methods:

• Ninety young permanent teeth requiring apexification were randomized into two groups: cold flowable gutta-percha and warm gutta-percha.
• Root canal tightness was assessed in apical, middle, and coronal thirds via radiography.
• Clinical and radiographic evaluations were performed at 6 and 12 months post-treatment.

Main Results:

• Cold flowable gutta-percha significantly reduced operation time (51s vs. 74s) and patient discomfort (26.67% vs. 40.00%).
• Superior three-dimensional obturation, particularly in the apical third, was observed with cold flowable gutta-percha (86.67% vs. 66.67%).
• No significant differences in middle and coronal thirds; no apical lesions occurred during follow-up.

Conclusions:

• Cold flowable gutta-percha provides effective root canal obturation after apexification in young permanent teeth.
• It demonstrates superior apical seal compared to warm gutta-percha.
• This technique shortens chair time and improves patient experience.