# Evaluation of long-term stability and relapse rates in open apex teeth following surgical de-rotation and splinting

## TL;DR

This study examines how stable open apex teeth remain after surgical de-rotation and splinting, finding that while initial results are good, relapse rates increase over two years.

## Contribution

The study provides new data on long-term relapse rates following surgical de-rotation and splinting in open apex teeth.

## Key findings

- 93.3% of patients showed satisfactory alignment and periodontal health at 6 months.
- Relapse rates increased significantly over time, with 26.7% experiencing relapse by 24 months.
- Periodontal health did not differ significantly between stable and relapsed cases.

## Abstract

The management of open apex teeth requiring surgical intervention poses a significant challenge in dental practice, particularly
concerning the long-term stability and potential relapse following treatment. Surgical de-rotation and splinting are common procedures
used to correct misalignment in such teeth. This study aims to evaluate the long-term stability and relapse rates in open apex teeth
following surgical de-rotation and splinting over a two-year follow-up period. A prospective cohort study was conducted involving 30
patients aged 10-15 years with open apex teeth requiring surgical de-rotation. Each patient underwent surgical de-rotation followed by
splinting for a period of six weeks. The patients were monitored at 6 months, 12 months, and 24 months post-treatment. Clinical
parameters such as tooth alignment, periodontal health and any signs of relapse were assessed using radiographic and clinical
examination techniques. Data were analyzed using descriptive statistics and the chi-square test to evaluate relapse rates. Out of the 30
patients treated, 28 (93.3%) showed satisfactory alignment and periodontal health at the 6-month follow-up. At 12 months, 26 patients
(86.7%) maintained stability, while 4 (13.3%) exhibited minor relapse. By the 24-month follow-up, 22 patients (73.3%) demonstrated
long-term stability, while 8 patients (26.7%) experienced relapse. The chi-square test indicated a statistically significant increase in
relapse rates over time (p < 0.05). No significant differences were observed in periodontal health between stable and relapsed cases.
Surgical de-rotation and splinting of open apex teeth demonstrate a high initial success rate, but relapse rates increase significantly
over time. Continuous monitoring and potential adjunctive therapies may be necessary to maintain long-term stability. These findings
highlight the importance of patient-specific treatment planning and long-term follow-up in managing open apex teeth.