Ninety immature teeth with necrotic pulps and periapical lesions on patients (aged 16-40y) were treated with AT using MTA (45 teeth) or CH (45 teeth) between 2015 and 2018. The patients were contacted for follow-up examination at 12 to 48 months after treatment. The treatment outcome based on clinical and radiographic criteria was assessed by calibrated examiners and dichotomized as "healed+healing" or "not healed". The age, gender, stage of root development, preoperative signs and symptoms of apical periodontitis and size of periapical lesion were recorded.
The aim of the study was to evaluate and compare the influence of various predictors on outcomes of apexification treatment (AT) using either mineral trioxide aggregate (MTA) or calcium hydroxide (CH) to treat permanent immature anterior teeth with necrotic pulps and periapical lesions in adults. Ninety immature teeth with necrotic pulps and periapical lesions on patients (aged 16-40y) were treated with AT using MTA (45 teeth) or CH (45 teeth) between 2015 and 2018. The patients were contacted for follow-up examination at 12 to 48 months after treatment. The treatment outcome based on clinical and radiographic criteria was assessed by calibrated examiners and dichotomized as "healed+healing" or "not healed". The age, gender, stage of root development, preoperative signs and symptoms of apical periodontitis and size of periapical lesion were recorded. The effect of potential clinical variables on the treatment outcome of AT was evaluated clinically and radiographically during a 12-48-month follow-up. In order to assess the cumulative successes of CH and MTA after AT, Kaplan-Meier survival analysis and log-rank test was used(p\>0.05).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
90
Apexification treatment was done with mineral trioxide aggregate
Apexification treatment was done with calcium hydroxide
The rate of the healing of the periapical lesion
Follow-up visits were performed 12 to 48 months. Changes in apical bone density was evaluated with the modified PAI radiographic healing criteria. The clinical and radiographic healing classification was as follows: Healed - the tooth was asymptomatic and the radiograph showed PAI 1 or 2 Healing - the tooth was asymptomatic and the radiograph showed PAI 3 or 4, with score improved at follow up from immediate post-treatment radiograph Not healed - the tooth was either symptomatic or the tooth was asymptomatic but the radiograph presented no decrease or an increase in the size of the pre-existing radiolucency at follow up from immediate post-treatment radiograph (PAI 3-5). The treatment outcome was assessed according to the last follow-up data. And all analyses were performed according to the last follow-up data.
Time frame: 12 to 48 months
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