2.Using a simple semi-fixed lingual arch combined with the edgewise technology to correct 8 cases with linguoclination or buccoclination of the mandibular molars.
3.The effects of electrical stimulation to the nucleus termination nervi trigemini(NTV) on the activities of genioglossus were studied in 35 rabbitS anesthetized withurethane.
4.In the light of different position, the mesiodens were extracted respectively by the technique of labial ladder-shaped flap, palate-tongue shaped flap or incision of alveolar ridge crest.