Document Type : مقاله‌های پژوهشی

Authors

• Farid Mohammadi ¹
• Shirin Zahra Farhad ²
• Masoud Feizbakhsh ³
• Shahram Amini ²

¹ Postgraduate Student, Department of Periodontics, School of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.

² Assistant Professor, Department of Periodontics, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran.

³ Assistant Professor, Department of Orthodontics, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran.

Abstract

Introduction: IL-6 and IL-8 have an important role in orthodontic tooth movement and creation of periodontal diseases. Laser therapy in orthodontics has effect on decrease pain and increase regeneration of bone, acceleration of tooth movement and decrease inflammation in periodontoal tissues. The aim of this study, determination the effect of low laser therapy on GCF level of IL-6 and IL-8 during orthodontics treatments.
Materials & Methods: In this clinical trial study, we chose 10 patients with crowding or protrusion, that they need fix orthodontic treatment with extract of two premolars in each side and then retract the anterior teeth. After complete SRP, the orthodontic treatments started. After clinical examination such as CAL, PD and BOP the teeth in one quadrant selected case groups and the other quadrant selected control groups. Low Level laser irradiation done in 0,2,7, 21 days and collection of GCF is done in 2,4,9, 23 days with paper cone in distal sulcus of canine for 30 second. Then all of the samples transferred to laboratory and then t-test ANOVA and LSD test done.
Results: The average of changes in IL-6 and IL-8 in GCF at the 21 day after laser irradiation had a significant difference but in the other days we didn’t have a significant difference.
Conclusion: Low level laser therapy at orthodontics treatment causes of decrease the inflammation and decrease the IL-6 and IL-8.
Key words: Interleukin-8, Interleukin-6, Tooth movement, Low-level laser therapy.