Purpose of study: The aim of this in vivo study is to evaluate (clinically and radiographically) the healing after apicectomy by using two different materials (MTA & amalgam).
Materials and Methods: The study included 30 cases of apicectomy divided equally into two groups: Group 1: The root apex was resected by diamond bur and the root-end cavity was prepared with ultrasonic microtips and filled with MTA. Group 2: The root apex was resected by diamond bur and the root-end cavity was prepared with ultrasonic microtips and filled with Amalgam. Cases then were observed clinically and radiographically within 3 different periods (3 months, 6 months, 9 months). We depended on the last period (9 months) to evaluate the healing
Results: The overall rate of healed cases was 83.3%. It was 86.66% in group 1 and 80% in group 2. There were statistically differences between the groups (P=0.026). The superiority of the 1st group to the 2nd group proves the Bio-mechanical features of MTA in success of the apicectomy and improvement of the healing.
Conclusion: The use of MTA as root-end filling material is useful in raising the healing rate after the apicectomy compared with amalgam