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Magnetic activator device II (MAD II) for correction of Class II, division 1 malocclusions.
Journal article

Magnetic activator device II (MAD II) for correction of Class II, division 1 malocclusions.

  • Darendeliler MA Department of Orthodontics and Pedodontics, University of Geneva Dental School, Switzerland.
  • Joho JP
  • 1993-03-01
Published in:
  • American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics. - 1993
Activator Appliances
Child
Female
Humans
Magnetics
Male
Malocclusion, Angle Class II
Orthodontic Appliance Design
Orthodontic Appliances, Removable
Orthodontics, Corrective
Samarium
English A magnetically active, two-piece (upper and lower), functional orthopedic appliance has been developed, magnetic activator device (MAD) for the correction of Class II malocclusions. The magnetic forces are used to give freedom of mandibular movement and to allow for continuous functioning of the orofacial muscles when the appliance is worn. Samarium cobalt (Sm2Co17) magnets are incorporated on the buccal aspects of the upper and lower appliances. Magnetic forces ranging from 150 to 600 gm per side have been used on patients, and it seems that the skeletal versus dental response depends on the intensity of the magnetic force used. A force of 300 gm, when the magnets are in contact, on each side has been found to be an appropriate value in patients age 7 to 12 years. The use of this less bulky design rather than a traditional orthopedic appliance, along with the freedom of function it permits, has enabled patients to wear the appliance nearly 24 hours in most cases.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.rero.ch/global/documents/10630
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