TY - JOUR ID - 226935 TI - Assessment of Rate of Orthodontic Tooth Movement with Different Modalities of Ligations JO - Al-Azhar Dental Journal for Girls JA - ADJG LA - en SN - 2537-0308 AU - Nasef, Aya E. AU - Ibrahim, Samir A. AU - El Kabbany, Sara M. AD - Demonstrator at orthodontic department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt. AD - Professor of Orthodontics, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt. AD - Lecturer at Orthodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt. Y1 - 2022 PY - 2022 VL - 9 IS - 2 SP - 349 EP - 354 KW - Orthodontics KW - canine retraction KW - self- ligation DO - 10.21608/adjg.2022.76226.1385 N2 - Purpose: This study was carried out to assess the effect of different types of ligatures on the rate of canine retraction. Materials and Methods: 14 participants requiring extraction of upper first premolars, were randomly assigned into 2 groups;  group 1 had passive self-ligating bracket on the upper right canine, figure of 8 module ligature on the upper left canine and group 2  also had  self-ligating bracket on the upper right canine, and slide-low friction elastic module on the left side. Canines retraction were done under 150 gm of force using a 9 mm nickel-titanium closed-coil spring .Alginate impression was taken at the onset of canine retraction(T0), and every month (T1T4). Study casts were fabricated and then scanned with a 3D scanner. Results: The statistical analysis showed no statistically significant difference in the rate of canine retraction between the 2 groups, and between the control and intervention sides within each group. Conclusion: The difference in rate of upper canine retraction between self- ligation brackets, figure of 8 elastic module and slide –low friction ligature was not statistically significant. UR - https://adjg.journals.ekb.eg/article_226935.html L1 - https://adjg.journals.ekb.eg/article_226935_f497149cc3f6df57aa056bc0a28a4504.pdf ER -