Abstract

Backgroud: Third molar extraction surgery is a popular dental procedure and has many postoperative complications such as pain, swelling, trismus. In order to reduce side effects of postoperative drugs, we conducted this study to evaluate the effectiveness of Diode Laser therapy when using anti-inflammatory drugs or not after impacted third molar extraction.

Objectives: To study the effect of Diode Laser therapy with different total energy levels when using anti-inflammatory drug or not after lower third molar extraction surgery.

Subjects and methods: 45 patients, who underwent impacted lower third molar extraction surgery at Dental Clinic, Hue University of Medicine and Pharmacy, were divided randomly into 3 groups. In group 1, each patient was applied 810nm Laser Diode with total energy 66J, power density 27.5 J/cm2 and prescribed anti-inflammatory drug after surgery. In group 2, each patient was applied 660nm Laser Diode with total energy 12 J, power density 3 J/cm2 and prescribed anti-inflammatory drug after surgery. In group 3, the same procedures were set up at surgical site but patients were not prescribed anti-inflammatory drug. Patients were evaluated pain intensity every days in first 7 days and swelling, trismus at day 1, 2, and 7 postoperatively.

Results: The differences in VAS scores among 3 groups in the first 7 days after surgery were not significant (p>0.05). The differences in swelling and trismus among 3 groups at day 1, day 2 and day 7 after surgery were not significant (p>0.05).

Conclusion: There were no significant differences in postoperative pain intensity, swelling and trismus between Diode Laser treatment groups when using anti-inflammatory drug alpha-chymotrypsin.