| 摘要 |
A release system for treatment of a broken jaw comprises an upper and lower arch bar conformable to the curvature of the dental arches. The upper arch bar presents a series of interaligned loops which presents a channel for supporting a release bar extending therethrough. Upon wiring the arch bars to the respective dental arches, the lower arch bar is wired to the release bar so as to immobilize the dental arches and associated jaw. Upon imminent vomiting the user removes the release bar from its channel so as to disengage the release bar wiring from the associated upper arch bar. The loop channel supports the release bar so as to prevent kinking and bending of the release bar during wiring and wear. Various arch bars with releasable loops attached thereto are disclosed. Hanger elements for use with individual teeth are also disclosed which define courses for the release bar in lieu of the use of the loop channel on an arch bar. Caps cover the twisted ends of ligature wires to preclude oral abrasion. |
