Low intensity pulsed ultrasound
Low intensity pulsed ultrasound (LIPUS) is a medical technology, generally utilizing 1.5 MHz frequency pulses, with a pulse width of 200 μs, repeated at 1 kHz, at an intensity of 30 mW/cm2, 20 minutes/day.
Applications of LIPUS include:
- Promoting bone fracture healing.[1]
- Treating orthodontically induced root resorption.[2]
- Regrow missing teeth.
- Enhancing mandibular growth in children with hemifacial microsomia.[3]
- Promoting healing in various soft tissues such as cartilage, inter vertebral disc, etc.[4]
- Improving muscle healing after laceration injury.[5]
Researchers at the University of Alberta have used LIPUS to gently massage teeth roots and jawbones to cause growth or regrowth, and have grown new teeth in rabbits after lower jaw surgical lengthening (Distraction osteogenesis) (American Journal of Orthodontics, 2002). As of June 2006, a larger device has been licensed by the Food and Drug Administration (FDA) and Health Canada for use by orthopedic surgeons. A smaller device that fits on braces has also been developed but is still in the investigational stage and is not available to the public.
It has not yet been approved by either Canadian or American regulatory bodies and a market-ready model is currently being prepared. LIPUS is expected to be commercially available before the end of 2012.
According to Dr. Chen from the University of Alberta, LIPUS MAY also have medical/cosmetic benefits in allowing people to grow taller by stimulating bone growth.
See also
References
- ^ Raman Mundi, Stephen Petis, Roopinder Kaloty, Vijay Shetty, Mohit Bhandari (2009). "Low-intensity pulsed ultrasound: Fracture healing". Indian J Orthop 43 (2): 132–140. doi:10.4103/0019-5413.50847. PMC 2762261. PMID 19838361. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2762261.
- ^ El-Bialy T, El-Shamy I, Graber (2004). "Repair of orthodontically induced root resorption by ultrasound in humans". Am J Orthod Dentofacial Orthop 126: 186–193. PMID 15316473.
- ^ Tarek El-Bialy, Ali Hasan, Ahmad Janadas, Tarik Albaghdad (March 2010). "Nonsurgical treatment of hemifacial microsomia by therapeutic ultrasound and hybrid functional appliance". Br Med Bull 2010 (2): 29–36. doi:10.2147/OAJCT.S7060.
- ^ Anil Khanna, Richard T. C. Nelmes, Nikolaos Gougoulias, Nicola Maffulli, Jim Gray (2009). "The effects of LIPUS on soft-tissue healing: a review of literature". Br Med Bull 89 (1): 169–182. doi:10.1093/bmb/ldn040. http://bmb.oxfordjournals.org/content/89/1/169.abstract.
- ^ Yi-Sheng Chan, Kuo-Yao Hsu, Chia-Hua Kuo, Shin-Da Lee, Su-Ching Chen, Wen-Jer Chen, Steve Wen-Neng Ueng (May 2010). "Using Low-Intensity Pulsed Ultrasound to Improve Muscle Healing After Laceration Injury: An in vitro and in vivo Study". Ultrasound in Medicine and Biology 36 (5): 743–751. doi:10.1016/j.ultrasmedbio.2010.02.010. http://www.dovepress.com/nonsurgical-treatment-of-hemifacial-microsomia-by-therapeutic-ultrasou-peer-reviewed-article-OAJCT.
External links