Radicular cyst is an inflammatory cyts of odontogenic origin. It is seen more frequently in permanent dentition than primary dentition. Radicular cysts can develop due to apical infection caused by caries. If this cyst is seen during the primary dentition period, it may change the position of the permanent tooth under and prevent it from erupting. As a result of the panoramic x-rays taken by two separate 7-year-old male patients who applied to our clinic due to dental caries, radicular cysts were detected at the roots of the primary molars in their right lower jaw. In the Oral and Maxillofacial Surgery department, teeth were extracted from both cases and drains were insterted. 15 days after drain insertion, in the Pedodontics department, the drains were removed and impression of teeth was taken with a silicone impression material. The drains were then reinserted. 1 week later, a removable decompression appliance was applied to the first case, and a fixed decompression appliance was cemented to the second case as requested by the patient’s parents. The first patient removed the appliance only while eating. Patient washed the drain and the cyst cavity with physiological saline. In the second case, patient was only able to flush the drain since the appliance was fixed. Both cases recovered within 3 months. Follow-ups were scheduled at 1-month intervals. Radicular cysts have different treatment options. Among the factors affecting the decision process, surgical consultation and patient cooperation play an important role.