]>
IRCT201607049569N3 IRCT 2016-08-02 Vice Chancellor for Research of Tabriz University of Medical Sciences Effect of miniscrew design on survival rate and pain in orthodontic patients A comparison of the effect of taper and cylindrical miniscrew designs on clinical success rate and pain in orthodontic patients 2016-04-03 anticipated 212 Complete https://irct.ir/trial/10148 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. 3 Orthodontic Anchorage Procedures. Intervention 1: Control group: 106 cylindrical miniscrews manufactured by General Implant Company, with a diameter of 1.6mm and a length of 11mm will be inserted on both sides of maxilla between second premolar and first molar in 53 patients. During insertion of miniscrew, insertion torque will be measured by torque measurement device. miniscrews will be loaded immediately. Intervention 2: Intervention group: 106 taper miniscrews manufactured by General Implant Company, with a diameter of 1.6mm and a length of 11mm will be inserted on both sides of maxilla between second premolar and first molar in 53 patients. During insertion of miniscrew, insertion torque will be measured by torque measurement device. miniscrews will be loaded immediately.
public Amir Mohammadi
Department of Orthodontics, Tabriz Dental Faculty, Tabriz University of Medical Sciences, Golgasht Street
Tabriz Iran (Islamic Republic of) +98 41 3329 4312 amirortho@gmail.com Department of Orthodontics of Dental Faculty of Tabriz University of Medical Sciences scientific Amir Mohammadi
Department of Orthodontics, Tabriz Dental Faculty, Tabriz University of Medical Sciences, Golgasht Street
Tabriz Iran (Islamic Republic of) 5166614713 +98 41 3329 4312 amirortho@gmail.com Department of Orthodontics of Dental Faculty of Tabriz University of Medical Sciences Iran (Islamic Republic of) Inclusion criteria: A treatment plan to insert miniscrews on both sides of maxilla between the second premolar and the first molar for retraction of anterior teeth. Exclusion criteria: Any disease compromising bone quality like osteoporosis, osteomalasia, and osteopetrosis. 10 years 40 years Both Z45.8 Adjustment and management of other implanted devices Treatment - Other Treatment - Other Control group: 106 cylindrical miniscrews manufactured by General Implant Company, with a diameter of 1.6mm and a length of 11mm will be inserted on both sides of maxilla between second premolar and first molar in 53 patients. During insertion of miniscrew, insertion torque will be measured by torque measurement device. miniscrews will be loaded immediately. Intervention group: 106 taper miniscrews manufactured by General Implant Company, with a diameter of 1.6mm and a length of 11mm will be inserted on both sides of maxilla between second premolar and first molar in 53 patients. During insertion of miniscrew, insertion torque will be measured by torque measurement device. miniscrews will be loaded immediately. Mobility in miniscrews. Timepoint: every 4 weeks after miniscrew placement. Method of measurement: By placing a calibrated probe on the miniscrew and lateral movement, if mobility is greater than 0.5 millimeter, the miniscrew is designated mobile. Pain. Timepoint: immediately after miniscrew placement and 6hours, 24hours, 48hours, and a week after. Method of measurement: registeration of the amount of pain from 0 (minimum pain) to 10 (maximum pain) according to Visual Analogue Scale in special times. Amount of insertion torque of the miniscrews. Timepoint: during insertion of miniscrews. Method of measurement: Torque measurement device (Orthonia, JEIL Company). Vice Chancellor for Research of Tabriz University of Medical Sciences Approved 2016-07-26 Ethics Committee of Tabriz University of Medical Sciences Ethics Committee of Tabriz University of Medical Sciences, Vice Chancellor for Research of Tabriz University of Medical Sciences,Tabriz University of Medical Sciences, Golgasht Street Tabriz Iran (Islamic Republic of)