The utility model relates to the technical field of oral
medical treatment for children, in particular to a CBCT (
cone beam computed tomography) guided 3D (three-dimensional) printing personalized distal guide plate gap
retainer, which comprises an
abutment fixing sleeve and a distal guide plate vertical plate, a mounting mechanism is arranged between the
abutment fixing sleeve and the distal guide plate vertical plate, and anti-licking mechanisms are arranged on the inner sides of the
abutment fixing sleeve and the distal guide plate vertical plate. The abutment fixing sleeve and the distal guide plate vertical plate are formed by 3D personalized printing under the guidance of CBCT (
cone beam computed tomography), the abutment fixing sleeve can be accurately matched with the anatomical form of an abutment, the distal guide plate is ensured to be perfectly attached to the mesial adjacent surface of an ungerminated first permanent
molar of a child, and the abutment fixing sleeve is sleeved on the abutment, so that the abutment fixing sleeve can be used for fixing the first permanent
molar of the child. Then, a rotating rod is screwed to drive a driving
bevel gear and a driven
bevel gear to rotate in a meshed mode, a lead screw rotates to push a hollow
pipe to move outwards, a vertical plate of a distal guide plate is pushed to move to the mesial adjacent face where a first permanent
molar is not germinated for installation, and the gap length of a gap
retainer can be finely adjusted along with child development.