SciELO - Scientific Electronic Library Online

vol.11 issue1Influence of the Twin Block propulsor appliance in the mandibular growth: systematic review of literatureEvaluation of the neoformed osseous densitry after mandibular osteogenic distraction author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Dental Press de Ortodontia e Ortopedia Facial

On-line version ISSN 1980-5500


SOBRINHO, Sisenando Itabaiana et al. A mechanical alternative with employment of magnetic force for the tooth desimpactation. Rev. Dent. Press Ortodon. Ortop. Facial [online]. 2006, vol.11, n.1, pp.28-36. ISSN 1980-5500.

AIM: the present work evaluated a new mechanical alternative to guide the eruption to the oclusal plan of a impacted bicuspid tooth using attractive cobalt-samarium magnets. METHODS: the treatment was accomplished in a 11 years old Class I young patient, with a impacted right inferior second premolar. The magnetic system consisted of magnets bonded to the vestibular surface of the impacted tooth and a rigid magnetic pole incrusted in a band and loop container. Previously to the installation of the magnetic system, the magnets were characterized through fluorescence analysis, X rays diffraction and magnetization level. The force/distance relationship used was quantified, the magnets were measured and the buccal magnetic geometry established. RESULTS: the time used in the desimpactation was of 40 days and were necessary two magnetic activations to approach the magnets in this interval. The magnetic option in this clinical case was quite effective so much in relation to the time of treatment as in regard to the comfort proportionated to the patient. The magnets generated a continuous and autonomous force field, not being necessary to use metallic threads as orientation guides in the eruption and nor elastic. CONCLUSION: this therapeutic possibility will frequently be useful in such deeper desimpactation as the canine teeth ectopics, seen in the daily activity.

Keywords : Magnetic force; Orthodontics; Tooth desimpactation.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License