| 摘要 |
<p>The prevention of the occlusal contacts may be occasionally necessary during fixed orthodontic treatments. This invention is a treatment accessory to instantly and temporarily raise the bite. By attaching it into the molar tubes, the occlusal contacts of the opposite teeth are instantly and temporarily, prevented. The bite raiser is constructed by using 0.8-0.9 mm, Cr-Ni, titanium or similar metals. Vestibular side consisted of two types of elements; a pair of insertion wings, serving to insert the raiser into the molar tube, and a pair of proximal wings extended from the insertion wings, serving to attach the raiser to the tube. The two arms of these pieces extend to the occlusal surface of the tooth with an angle according to the anatomical form of the molar tooth. On the occlusal surface, three occlusal stops are extended from the three sides of the occlusal part. They could be bent to the occlusal pits of the molar tooth to increase the stability and the height of the raiser. The occlusal shape is wider on the palatal side, and narrower on the vestibular side. This shape provides the settling of the reinforced palatal angles, on the palatal cusps of the molar tooth. Reinforcement is made by widening the metal surface of the palatal angles. On the palatal side, there is a 'T' shaped palatal spur, serving to attach the raiser to the palatal part of the molar band. This 'T' shaped spur could also be bent to the opposite side, in the condition of the insufficiency of raising the bite.</p> |
