Abstract: An oral appliance as swallowing auxiliary device with coverage of maxillary teeth and a manufacturing method thereof are provided. The oral appliance comprises a retention framework and a palatal pad. The retention framework is manufactured according to the surface of maxillary dentition, and some case according to the surface of gingiva around the maxillary teeth together. The palatal pad corresponds to the swallowing and pronouncing functional position of tongue and palate. The oral appliance in the present invention is made by a first material and a second material, such as elastic and resiliently soft material, and it obtains well retention force by the material embracing the undercut between the path of insertion of the device and the surface of maxilla teeth or gingiva around the maxillary teeth.

Abstract: An oral appliance as swallow training auxiliary device with open occlusal surface includes an open fixing frame and a palate pad. The open fixing frame is first made from cast by elastic material, or other elastic material done by 3D printed technology, and the palate pad uses an unsetting soft material to make a palate pad. After placement of the open fixing frame with the palate pad template on the upper dental arch of a patient, the patient does swallowing and uses tongue to press up on and cause the palate pad template to mold the shape of the palate pad to match tongue elevation position during swallowing and palate side in the oral cavity of the patient.