Single Versus Repeated Piezocision-assisted Orthodontic Tooth Movement

Single Versus Repeated Piezocision-assisted Orthodontic Tooth Movement: a Randomized Controlled Clinical Trial

The primary aim of the study is to evaluate the effect of single and repeated piezocisions on the rate of orthodontic tooth movement. Secondary aims are to evaluate the effect of both protocols on molar anchorage loss, as well as on canine root resorption.

Inclusion Criteria:

• Malocclusion that requires at least the extraction of maxillary first premolars, such as Class I bimaxillary protrusion, and Class II division 1 cases.
• Normal shape and structure of the maxillary canines, with no history of root canal treatment

Exclusion Criteria:

• Patients who underwent previous orthodontic treatment.
• Patients currently receiving drug therapy that may affect orthodontic tooth movement, e.g. hormonal therapy and corticosteroids.