| 摘要 |
An automatic Maxillary Expander, which is a bone-borne distractor for expanding the maxillary bone in adult and adolescents having transversal maxillary hypoplasia. It fixes itself to the palatal vault in a way without any need for screwing, by the asymmetrical triangular prism-shaped spikes on the anterior, posterior columns. Both being hygienic and not wasting a bulky space in the mouth, it provides a high patient comfort. The maxillary expanding process does not interrupt orthodontic treatment of patients and minimizes damage to the texture of the mouth. An automatic Maxillary Expander Transferring Apparatus enables the practitioner to place the Automatic Maxillary Expander into the palatal surface with ease and precision into the palate under local anesthesia quickly, without any surgical operation. In addition, this apparatus is composed of a very simple mechanism. It has rounded ends in order not to hurt the practitioner or patient.
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