The invention relates to the technical field of appliances, in particular to a 3D printing-based liquid
silica gel additive manufacturing customized early appliance, which comprises an upper
occlusion sleeve and a lower
occlusion sleeve, the upper part of the upper
occlusion sleeve is provided with an
upper tooth socket for the
insertion of maxillary teeth, the upper part of the upper occlusion sleeve is provided with lip-
cheek screens on the outer side, and the lower part of the upper occlusion sleeve is provided with a
lower tooth socket for the
insertion of the maxillary teeth. The lip-
cheek screen can move in the circumferential direction of the upper occlusal sleeve, a tongue abutting part is arranged on the upper portion of the upper occlusal sleeve and located on the inner side of the upper occlusal sleeve, the lower portion of the lower occlusal sleeve is provided with a
lower tooth groove allowing lower jaw teeth to be inserted therein, and the upper occlusal sleeve and the lower occlusal sleeve are detachably connected through a connector clip. According to the orthodontic appliance, models of
maxillary dentition and
mandibular dentition of a patient are formed, and liquid
silica gel additive manufacturing is adopted by using a 3D printer, so that customization of the orthodontic appliance according to teeth of the patient is realized, the orthodontic appliance is easier to wear and better in orthodontic effect, meanwhile, through 3D printing, the manufacturing period of the orthodontic appliance is shortened, and the manufacturing difficulty is reduced.