Evaluation of Maxillary Canine Retraction Assisted With Two Different Methods of Low-Intensity Pulsed Ultrasound

The current clinical study will be done for evaluation of maxillary canine retraction assisted with application of two different methods of low-intensity pulsed ultrasound.

Inclusion Criteria:-All patients should satisfy the following criteria:An age ranges from 15-22 years.Severe crowding or protrusion requiring 1st premolar extractions followed by symmetrical canine retraction.All permanent teeth present, 3rd molars are excluded.Good oral hygiene.No systemic disease/medication that could interfere with orthodontic tooth Movement (OTM).No previous orthodontic treatment.Exclusion Criteria:1. Patient diagnosed to have an indication for non-extraction approach. 2. Poor oral hygiene or periodontally compromised patient. 5 3. Patient with craniofacial anomalies or previous history of trauma, bruxism or parafunctions. 4. Previous orthodontic treatment. 5. Any implanted assistive devices (e.g., pacemakers, cochlear implants, etc.) 6. Pregnant females.