| 摘要 |
Self-ligating bracket for orthodontics has a base, an occlusal wall extending from the base and occlusal ligature wing, a gingival wall extending from the base and gingival ligature wing, a slot, which separates the occlusal wall and the gingival wall from one another and extends continuously in the direction from mesial to distal, and a slide, which is held in a guide provided in the occlusal wall and/or in the gingival wall. The guide can be shifted in the gingival-occlusal direction, between a closed position, in which the slide bridges the slot, and an open position, in which the slot is open in labial direction. A structure holds the slide in its closed position as well as in its open position. |
| 主权项 |
1. A self-ligating bracket for orthodontics having
a basean occlusal wall extending from the base and having at least one occlusal ligature wing, a gingival wall extending from the base and having at least one gingival ligature wing, a slot, which separates the occlusal wall and the gingival wall from one another and extends continuously in the direction from mesial to distal, and a slide, which is held in a guide provided in the occlusal wall and/or in the gingival wall, and in the guide can be shifted in the gingival-occlusal direction between a closed position, in which the slide bridges the slot, and an open position, in which the slot is open in labial direction, and a structure that can hold the slide in its closed position as well as in its open position, wherein: at least one elongated recess is provided, the longitudinal direction of which runs parallel to the longitudinal direction of the slot and in which a strand is arranged horizontally, which has a lateral surface, is supported in the recess and can avoid a movement of the slide further to an elastic or elastomeric restoring ability; said at least one recess is provided in the gingival wall and/or in the occlusal wall of the bracket and has an opening facing the slide, out of which the strand protrudes to the outside with a section of the lateral surface thereof; a first stop is provided on the slide, which abuts the lateral surface of the strand in the open position of the slide; on the side of the slide that faces the strand a protrusion is provided on said slide and arranged in such a way that upon displacement of the slide into the closed position thereof, before assuming the closed position, it first of all abuts the lateral surface of the strand, before the slide can assume its closed position, inasmuch as its protrusion passes the strand; sufficient space is available on both sides of the protrusion, in order to accommodate the section of the strand protruding from the recess; a second stop is provided on the bracket and the slide abuts said stop in the closed position thereof, once the protrusion thereof has passed the strand. |
