The goal of this clinical trial is to compare two root canal obturation techniques for endodontic treatment in patients aged 15 to 56 years with irreversible pulpitis. The main questions it aims to answer are:
1. Does continuous wave condensation differ from the single-cone technique in obturation time?
2. Does continuous wave condensation differ from the single-cone technique in obturation quality, postoperative pain, and 6-month treatment success? Researchers will compare continuous wave condensation with single-cone obturation to see whether one technique provides better sealing quality, shorter treatment time, less postoperative pain, or higher clinical success.
Participants will:
* Receive endodontic treatment for teeth diagnosed with irreversible pulpitis.
* Undergo root canal preparation with Reciproc Blue R25.
* Have canals obturated using either continuous wave condensation or the single-cone technique.
* Be evaluated for obturation time, radiographic quality immediately after treatment, postoperative pain at 4, 24, 48, and 72 hours, and clinical-radiographic outcome at 6 months.