| 摘要 |
An orthodontic tooth positioning appliance is provided for correcting open-bite which includes a web region engageable by the posterior teeth to prevent further eruption of those teeth and a vertical gap between the occlusal surfaces of the anterior teeth to permit further eruption of those teeth. The appliance may also include a tongue guide profile including at least one pointed protrusion on the lingual side of the lower midline portion of the appliance and a recessed area above the protrusion for receiving a tip of the tongue. |
