| 摘要 |
<p>The bracket (40) has a base (1), a cap (4), an occlusal wall (6) with an occlusal ligature wing (9), a gingival wall (5) with a gingival ligature wing (8), and a slot (7) which separates the occlusual wall and the gingival wall from each other. A basis surface (11) is provided, on which an arch wire (10) is placed during an orthodontic treatment. A passage is limited by a lingual seated surface and by a labial seated surface.</p> |
