Piezosurgery has been tremendously used in oral and maxillofacial surgery, but there has been no report systematically introducing an osteotomy method using piezosurgery in complicated mandibular third molar removal. This study aimed to evaluate a new technique for surgical removal of impacted mandibular third molars, using bone splitting technique with ultrasonic (surgical piezo).
A total of 40 patients, their ages range between 18–40 years, who had asymptomatic impacted mandibular third molars, were selected for this study and randomized into two groups. Group A consisted of 20 patients who underwent surgical extraction with rotary instruments and Group B consisted of 20 patients who underwent surgical extraction done with bone splitting technique with ultrasonic (surgical piezo). The post-operative pain, swelling, and trismus were assessed over a 7 days follow-up period.
The mean post-operative pain on day 0 was 6.06 ± (0.69) in Group A and 4.06 ± (0.69) in Group B, Then on day 3, it was 4.20 ± (0.7) in Group A and 2.50 ± (0.69) in Group B, and on day 5 it was 3.0 ± (0.73) in Group A and 0.50 ± (0.6) in Group B. On the 3rd post-operative day, the mean post-operative swelling was 3.51 ± (0.3) cm in Group A and the mean post-operative swelling was 2.3600 ± (0.28910) cm in Group B. On the 5th post-operative day, the mean post-operative swelling was 2.4 ± (0.31) in Group A and 1.6650 ± (0.21095) in Group B. The difference between both groups was significant for all parameters.
Although extraction of impacted lower third molar using bone splitting technique with ultrasonic (surgical piezo) takes more time and is more expensive, the advantages gained in terms of tissue preservation, and decreased pain and swelling make it a superior technique compared with using rotary instruments.
International Journal of Applied Dental Sciences.
2020.
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