Subject(s)
Cephalometry , Xeroradiography , Humans , Orthodontics , Radiation Dosage , Radiography, Dental , Xeroradiography/methodsSubject(s)
Orthodontics/standards , Quality Control , Humans , Medical Audit , State Dentistry/standards , United KingdomABSTRACT
A useful modification of the Barrer appliance is described to enable final positioning and retention following treatment in both upper and lower arches.
Subject(s)
Orthodontic Appliances, Removable , Equipment Design , Humans , Tooth Movement Techniques/instrumentationABSTRACT
An aesthetic solution is offered to the problem of space maintenance following the re-opening of space for an upper central incisor.
Subject(s)
Esthetics, Dental , Incisor , Space Maintenance, Orthodontic , Tooth, Artificial , Acrylic Resins , Humans , MaxillaABSTRACT
The first part of this paper is a literature review of magnets and their uses in orthodontics. The biological safety of magnets is considered and a report is given of experiments carried out on rat osteosarcoma cell line UMR-106. The second part of the paper describes a case where neodynium-iron-boron magnets were used to assist eruption of an unerupted, vertically impacted upper right canine. Previously, space was available for this tooth, but it failed to show signs of eruption. Following surgical attachment of a magnet, and the use of a second magnet attached to an upper removable appliance, rapid eruption occurred producing a favourable position for bonding.