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Article

Effect of Low Intensity Pulsed Ultrasound (LIPUS) on Tooth Movement and Root Resorption: A Prospective Multi-Center Randomized Controlled Trial

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Division of Orthodontics, Katz Group Centre for Pharmacy and Health Research, School of Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada
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Department of Orthodontics, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt
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Division of Orthodontics, School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada
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Division of Orthodontics, Graduate Orthodontic Program, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 1C9, Canada
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Department of Preventive Dental Science (incl. Community Dentistry, Orthodontics and Pediatric Dentistry), Division of Orthodontics, Graduate Orthodontic Program, College of Dentistry, University of Manitoba, Winnipeg, MB R3E 0W3, Canada
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Division of Orthodontics, Graduate Orthodontic Program, College of Dentistry, University of Manitoba, Winnipeg, MB R3E 0W3, Canada
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Graduate Orthodontic Program, University of Toronto, Toronto, ON M5G 1G6, Canada
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Discipline Head Orthodontics, Faculty of Dentistry, University of Toronto; Division of Orthodontics, Hospital for Sick Children, University of Toronto, Toronto, ON, M5G 1G6, Canada
*
Author to whom correspondence should be addressed.
J. Clin. Med. 2020, 9(3), 804; https://doi.org/10.3390/jcm9030804
Received: 18 February 2020 / Revised: 11 March 2020 / Accepted: 12 March 2020 / Published: 16 March 2020
(This article belongs to the Special Issue Applications of Therapeutic Ultrasound in Dentistry)
The aim of this study was to evaluate the possible effect of low intensity pulsed ultrasound (LIPUS) on tooth movement and root resorption in orthodontic patients. Twenty-one patients were included in a split-mouth study design (group 1). Ten additional patients were included with no LIPUS device being used and this group was used as the negative control group (group 2). Group 1 patients were given LIPUS devices that were randomly assigned to right or left side on upper or lower arches. LIPUS was applied to the assigned side that was obtained by randomization, using transducers that produce ultrasound with a pulse frequency of 1.5 MHz, a pulse repetition rate of 1 kHz, and average output intensity of 30 mW/cm2. Cone-beam computed tomography (CBCT) images were taken before and after treatment. The extraction space dimensions were measured every four weeks and root lengths of canines were measured before and after treatment. The data were analyzed using paired t-test. The study outcome showed that the mean rate of tooth movement in LIPUS side was 0.266 ± 0.092 mm/week and on the control side was 0.232 ± 0.085 mm/week and the difference was statistically significant. LIPUS increased the rate of tooth movement by an average of 29%. For orthodontic root resorption, the LIPUS side (0.0092 ± 0.022 mm/week) showed a statistically significant decrease as compared to control side (0.0223 ± 0.022 mm/week). The LIPUS application accelerated tooth movement and minimized orthodontically induced tooth root resorption at the same time. View Full-Text
Keywords: orthodontic tooth movement; acceleration; low-intensity pulsed ultrasound; LIPUS; clinical trial orthodontic tooth movement; acceleration; low-intensity pulsed ultrasound; LIPUS; clinical trial
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MDPI and ACS Style

El-Bialy, T.; Farouk, K.; Carlyle, T.D.; Wiltshire, W.; Drummond, R.; Dumore, T.; Knowlton, K.; Tompson, B. Effect of Low Intensity Pulsed Ultrasound (LIPUS) on Tooth Movement and Root Resorption: A Prospective Multi-Center Randomized Controlled Trial. J. Clin. Med. 2020, 9, 804. https://doi.org/10.3390/jcm9030804

AMA Style

El-Bialy T, Farouk K, Carlyle TD, Wiltshire W, Drummond R, Dumore T, Knowlton K, Tompson B. Effect of Low Intensity Pulsed Ultrasound (LIPUS) on Tooth Movement and Root Resorption: A Prospective Multi-Center Randomized Controlled Trial. Journal of Clinical Medicine. 2020; 9(3):804. https://doi.org/10.3390/jcm9030804

Chicago/Turabian Style

El-Bialy, Tarek, Khaled Farouk, Terry D. Carlyle, William Wiltshire, Robert Drummond, Tim Dumore, Kevin Knowlton, and Bryan Tompson. 2020. "Effect of Low Intensity Pulsed Ultrasound (LIPUS) on Tooth Movement and Root Resorption: A Prospective Multi-Center Randomized Controlled Trial" Journal of Clinical Medicine 9, no. 3: 804. https://doi.org/10.3390/jcm9030804

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