The patients were recruited at the Endodontic clinic, Faculty of Dentistry, Mahidol University, Thailand. Each treatment was provided following the standard protocol. The calcium silicate based material (Bio-MA or ProRoot MTA) was randomly selected and used in the treatment. The patients were periodically recalled at 6 to 12 months. The outcome of the three treatments based on the clinical and radiographic criteria was assessed by the calibrated examiners and interpreted as ''healed/healing" or ''disease.''
How understandable was the trial content above?
Hard to understand
Easy to understand
