Evaluation of Clinical Approaches to Accelerate Orthodontic Tooth Movement

Piezocision, Corticotomy and Micro-ostoeperforations to Accelerate Orthodontic Tooth Movement

This study will compare the techniques of piezocision and alveolar corticotomies in accelerating orthodontic retraction movement of canines. In a second phase, this clinical trial will evaluate the effectiveness of micro-osteoperforations in accelerating the retraction of maxillary incisors.

The first phase will consist of a split-mouth study in patients who require the extraction of the first premolars to correct malocclusion. The canine will be retracted using corticotomy and piezocision surgical techniques, as well as without any intervention, being this the control side. In addition, it will be evaluated the inflammatory biomarkers present in the gingival crevicular sulcus during the dental movement, as well as data related to pain and discomfort. The second phase will evaluate the effects of micro-osteoperforations in the retraction of maxillary incisors. The following parameters will be evaluated in the upper arch: anteroposterior incisors and first molars displacement, space closure, inclination and length of central incisors.

Inclusion Criteria:

• Patient with orthodontic need for bilateral upper first premolar extraction.
• Adequate dento-oral health
• ASA I and ASA II
• Compliance with clinic visits every 2 weeks

Exclusion Criteria:

• History of periodontal disease
• Smokers
• Altered bone metabolism (e.g., due to anti-resorptive drug, steroid or immunosuppressant use)
• Pregnancy
• Presence of cleft or any syndrome