Abstract: Objective: To observe the curative effect of pulp revascularization on the immature permanent teeth with apical periodontitis. Methods: Twelve immature permanent teeth (10 patients) were involved in the study. The patients were from 8 to 12 years old, and the average age was 10.8. Every tooth had an opened apical foramina and showed a radiolucent area around the root apex. Pulp revascularization technology was used to treat the teeth. After the treatment, the patients were reviewed by clinical examination and radiograph every 1 or 2 months, and were totally followed up for 6 to 18 months. Results: The roots of 8 teeth were continually developed. The average time of development was 4.6 months. The root lengths were not different to those of symmetrical teeth. Conclusion: Pulp revascularization is effective for the treatment of immature permanent teeth with apical periodontitis.

Key words: Pulp revascularization, Immature teeth, MTA