Objective: this study was directed to clinically and radiographically evaluate mineral trioxide aggregate (MTA) and TheraCal LC as indirect pulp capping (IPC) materials.
Patients and Methods: Twenty male patients aged 17–35 years with deep caires in class one in lower molars were randomly divided into two equal groups (n = 10). Group 1: pulp were capped using MTA. Group 2: pulp were capped using TheraCal LC. Clinical evaluation was performed at 1 week, 3, and 6 months after IPC for presence/absence of spontaneous pain, tenderness to percussion, draining sinuses and pulp response to thermal pulp vitality test. Digital periapical radiographs were taken at 1 week, 3, and 6 months after IPC to evaluate the changes in the width of periodontal ligament space and presence/absence of periapical lesion.
Results: Clinically, all cases showed criteria of successful treatment except 1case in each group. Statistical analysis revealed no statistically significant difference between both groups (P > 0.05). Radiographically, periapical lesions and the changes in the width of periodontal ligament space were not significantly different between both groups recording (P > 0.05). Conclusion: Clinically and radiographically, MTA and TheraCal LC are favorable materials for IPC.