Micro-osteoperforations on the Rate of Canine Retraction

Effect of Micro-osteoperforations on the Rate of Canine Retraction; A Split-mouth Randomized Controlled Clinical Trial

the study aimed to clinically evaluate the effect of micro-osteoperforations on the rate of tooth movement, as evaluated by its effect on the rate of canine retraction.

Ten adult patients requiring maxillary first premolars' extraction were enrolled in this split-mouth randomized controlled clinical trial.

Micro-osteoperforations were randomly assigned to one side of the maxillary arch at the canine-premolar region, and the contralateral side served as the control.

Mini-screws were used for anchorage reinforcement, and canine retraction was performed using nickel-titanium closed coil springs, delivering a force of 150 grams per side.

The primary outcome was the measurement of canine retraction rate throughout the study period from digital dental models obtained every 3 weeks.

The secondary outcome was the detection of possible canine tipping during retraction.

Inclusion Criteria:

• healthy systemic condition with no chronic diseases
• no previous orthodontic treatment
• adequate oral hygiene
• have a healthy periodontium
• signed an informed consent

Exclusion Criteria:

• have a chronic disease
• previous orthodontic treatment
• poor oral hygiene or periodontal conidition