This study assesses the efficacy of iRoot BP Plus in conjunction with Er∶YAG laser application in live pulpotomy for young permanent teeth. Patients aged 8-10 years with anterior crown fractures were selected and randomly assigned to either a laser group or a conventional group. The former underwent depulpation with Er∶YAG laser, while the latter used a turbo handpiece. Postoperative success rates of live pulp preservation at 12 months, pulpotomy duration, hemostasis time, and intraoperative pain were compared between groups. Laser pulpotomy (20 teeth) and turbine pulpotomy (20 teeth) were each conducted on 40 healthy children. After a 12-month follow-up, the success rates for the laser and conventional groups were 85% and 80% respectively, indicating no statistically significant difference (P>0.05). However, the Er∶YAG laser group exhibited longer pulp cutting time but shorter hemostasis time than the conventional group, with both parameters being statistically significant (P<0.05). Additionally, the VAS/VPS scores of the Er∶YAG laser group were lower than those of the conventional group, implying less intraoperative pain (P<0.05). Despite similar overall efficacy between Er∶YAG laser and turbine methods for live pulpotomy in young permanent teeth, the former offered significantly reduced intraoperative hemostasis time and patient discomfort. Given its ease of use and cost-effectiveness, Er∶YAG laser represents a potentially beneficial supplementary technique for pulpotomy.