Impacted canine causes many problems for patients, such as damage to the adjacent teeth roots, effects on gingival tissues, aesthetic problems, difficulty, and prolonged orthodontic treatment duration. Therefore, solutions to accelerate the movement of impacted canines with the help of surgical procedures to reduce treatment time will be investigated, such as intra-operative alveolar perforations and piezocision. We also aimed to evaluate periodontal changes associated with such accelerating procedures compared with the conventional traction method.

Patients with palatally impacted maxillary canines will be treated using fixed appliances assisted by some surgical procedures. The effects of this treatment approach on the periodontal status will be assessed using periodontal measurements.

There are two groups :

1. conventional treatment group
2. minimally-invasive corticotomy-assisted treatment group Patients will be allocated to the two groups randomly. Data will be collected using periodontal variables.

Inclusion Criteria:

1. Age of patients: 18-28 years.
2. Palatal or Mid-alveolar impacted canine.
3. There is no previous orthodontic treatment.
4. Healthy periodontal tissues and good oral health (i.e., the Plaque Index is less or equal to 1 according to Loe and Silness(1963).
5. The patient does not take any drug that may interfere with the tooth movement (Cortisone, NSAIDs …).
6. Mild or no crowding on the upper jaw.
7. No history of previous trauma to the maxillofacial region or surgical interventions.

Exclusion Criteria:

1. Any systemic diseases that would affect tooth movement
2. Antidepressant prevents oral surgery
3. Any congenital syndromes or cleft lip and palate cases
4. Bad oral health
5. Previous orthodontic treatment