Abstract

Aim: In our study, we aimed to measure the amount of released head by recording it with a thermal camera during the osteotomies made utilizing round, fissure and lindemann burs to the synthetic bone blocks to simulate the mandible ramus region which is often preferred when obtaining autogenous bone from the mouth.
Material and Methods: The burs in our study were used at rotational speeds of 10000 rpm and 15000 rpm and feed rates of 60 mm/ min and 90 mm/min, and each osteotomy was made with a CNC milling machine in order to standardize the applied force.

Results: According to the results of our study, the highest temperatures were observed in the fissure bur groups, and the round bur and lindemann bur groups gave similar results. In addition, when the feed rate is increased from 60 mm/min to 90 mm/min in all groups at constant rotational speed, the heat released increases significantly. When the groups are evaluated within themselves; the temperature values observed at 15000 rpm and 60 mm/min feed rate in the groups using round bur were found to be significantly lower than the group observed at 10000 rpm and 60 mm/min feed rates (p=0.028), in fissure bur groups, the temperature values observed at 10000 rpm and 60 mm/min feed rate were significantly lower than the values observed at 15000 rpm and 60 mm/min feed rates (p=0.028). No statistically significant difference was observed between the heat exchange averages of the 10000 rpm and 15000 rpm groups at a Lindemann bur 60 mm/min feed rate (p=0.182).

Conclusion: This study has shown that while the generated heat in the bone is thought to increase when the bur speeds are increased, the head generated according to bur designs can decrease and it is necessary to operate according to the characteristic features of the preferred bur.