Evaluation of Micro-osteoperforations to Accelerate Orthodontic Tooth Movement

Effects of Micro-osteoperforations on the Upper Incisors' Retraction: a Randomized Clinical Trial

This clinical trial evaluated the efficacy of micro osteoperforations in accelerating the retraction of maxillary incisors.

This single-centered randomized clinical trial evaluated the effects of micro-osteoperforations in the retraction of maxillary incisors in patients who required the extraction of the first premolars to correct malocclusion. The canine retraction was performed in a previous step. The possible effects of micro-osteoperforantions in the following parameters were evaluated in the upper arch: anteroposterior incisors and first molars displacement, space closure, inclination and length of central incisors.

Inclusion Criteria:

• both male and female subjects
• 16 or more years old
• orthodontic need of upper incisors extractions
• presence of all upper permanent teeth with exception of the third molars.

Exclusion Criteria:

• diseases and medications that were likely to affect bone biology
• pregnancy
• poor oral hygiene
• previous orthodontic treatment
• evidence of bone loss
• active periodontal disease
• smoking
• syndromes or cleft patients
• severe crowding or Class II malocclusion (Pg-Nper > 18 mm, ANB > 7º, SN-GoGn > 38º e overjet > 10 mm).