Objective The present study aimed to evaluate the effect of MOP over a 3-month period and
to determine the influence of the number of perforations on the rate of canine retraction. In
addition, the amount of pain and discomfort caused by the MOP method was evaluated. Trial
design A single-center, split-mouth, triple-blind, randomized, controlled trial was conducted.
Methods The clinical trial was conducted from December 2018 to July 2019 in the
Orthodontic Clinic, Shiraz Dental School. Twenty-eight patients (range from16. 3 to 35.2 …

Purpose The aim of the present split-mouth randomized controlled trial was to evaluate the
effects of miniscrew-facilitated micro-osteoperforations (MOPs) on the rate of orthodontic
tooth movement during canine retraction. Methods A total of 20 young adult patients (mean
age 16.5 years) with the indication for bilateral maxillary first premolar extraction were
included in the study. The MOPs were randomly applied to either the right or left side of the
mouth with miniscrews (1.5 mm width, 8 mm length) to the extraction area, 28 days apart …