No application was made after the tooth extraction procedure in the control group.

In the Laser group, the diode laser device Doctor Smile Wiser (Wiser, Doctor Smile, Milan, Italy) (Figue 1) with a wavelength of 980 nm and a power of 0.5 W was used for LLLT. During the procedure, the patient, physician, and assistant staff wore protective glasses (Wiser, Doctor Smile, Milan, Italy). With 300 mW of energy, a 400 m tip held 1 cm away from the extraction socket was applied to the extraction socket for 60 seconds from three points determined from the vestibule, lingual/palatal, and occlusal surfaces.

Tooth extractions were performed by a single physician. Topical anesthesia (Xylo-caine, Astra, Södertalje, Switzerland) was applied to the dried mucosa in the area to be lo-calized with the help of an ear stick for 1 minute. Posterior-superior-alveolar nerve block anesthesia and palatal anesthesia were applied for the upper primary molars; Inferi-or-alveolar nerve block anesthesia and lingual anesthesia (Ultracain, Aventis Pharma, Is-tanbul, Turkey) were applied for the lower primary molars. After anesthesia control was achieved, a randomly selected tooth was extracted. Tooth extraction on the other side was performed two weeks later. During the shootings, attention was paid to the traumatic ap-proach. After the control of bleeding was achieved, data were recorded for each group.

For the evaluation of soft tissue healing in extraction sockets, intraoral photographs were taken at an angle of 60° to the occlusal surface on the 3rd and 7th days following the extraction session. Non-epithelialized surface measurements were made by two observing physicians using the ImageJ (NIH, Rockville, USA) program.

Pain assessment in both groups was performed with the Wong-Baker Pain Rating Scale (Wong-Baker FACES Pain Rating Scale PRS). Patients were asked to choose a face or number from the scale, and the selected value was the practitioner dentist on the day of the procedure; other days were recorded by the parent. This scale is graded from 0 to 10. 0 indicates no pain, and 10 marks the most severe pain. It is asked to evaluate the pain according to the facial expression.