Pain and Discomfort in Two Acceleration Methods of Canine Retraction

54 patients who need extraction-based treatment of the maxillary first premolars with subsequent retraction of the maxillary canines will be divided randomly into three groups in this trial. The prolonged duration of the treatment period can cause many side effects such as white spots, caries, periodontal diseases, and pain and discomfort. So many efforts have been made to reduce the treatment time. Many procedures have been introduced to accelerate orthodontic tooth movement, which can category as surgical or non-surgical. Piezocision is a minimally invasive surgical method for accelerating orthodontic tooth movement and shortening treatment time. Low-level laser therapy (LLLT) is one of the physical acceleration methods that have contributed to decreasing treatment time. There are three groups: The first group (control group): the canine retraction in this group will be performed in conventional method. The second group (Experimental group): the canine retraction in this group will be performed in association with piezocision. The third group (Experimental group): the canine retraction in this group will be performed in association with low-level laser therapy.