Quad helix: Difference between revisions
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==Overview== | ==Overview== | ||
A '''Quad Helix''' (or quadhelix) is an [[orthodontic]] appliance for the upper [[teeth]] that is cemented in the [[mouth]]. It is attached to the [[Molar (tooth)|molar]]s by 2 bands and has four active [[helix]] | A '''Quad Helix''' (or quadhelix) is an [[orthodontic]] appliance for the upper [[teeth]] that is cemented in the [[mouth]]. It is attached to the [[Molar (tooth)|molar]]s by 2 bands and has four active [[helix]] springs that widen the arch of the mouth to make room for crowded teeth, or correct a posterior cross-bite, where lower teeth are buccal (outer) than upper teeth. | ||
A variety of this appliance is inserted into attachments that are welded to the bands. In this way the orthodontist can adjust the appliance without removing the bands. | A variety of this appliance is inserted into attachments that are welded to the bands. In this way the orthodontist can adjust the appliance without removing the bands. | ||
Revision as of 20:51, 17 January 2009
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Overview
A Quad Helix (or quadhelix) is an orthodontic appliance for the upper teeth that is cemented in the mouth. It is attached to the molars by 2 bands and has four active helix springs that widen the arch of the mouth to make room for crowded teeth, or correct a posterior cross-bite, where lower teeth are buccal (outer) than upper teeth. A variety of this appliance is inserted into attachments that are welded to the bands. In this way the orthodontist can adjust the appliance without removing the bands.