Patent ID: 11944511
Assignee: DENTSPLY SIRONA INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC A  B | IPC A  B

Claim 0:
1. An additively manufactured dental device for use in fabricating a polymeric dental prosthesis, the additively manufactured dental device comprising:
(a) an additively manufactured polymeric denture base having a polymeric palatal vault portion that is partially surrounded by a polymeric dental arch, the polymeric dental arch form having:
i. a buccal-facing side;
ii. a lingual-facing side; and
iii. a plurality of polymeric tooth sockets, wherein the plurality of polymeric tooth sockets are disposed along the polymeric dental arch form between the buccal-facing side and lingual-facing side; and

(b) at least one additively manufactured polymeric removable bracing body, wherein the at least one polymeric removable bracing body is joined to the polymeric denture base at a plurality of locations, such that the at least one polymeric removable bracing body includes:
i. at least one polymeric fixed juncture with the lingual-facing side of the polymeric dental arch form, proximate to an anterior tooth socket within an anterior portion of the polymeric dental arch form;
ii. at least one polymeric fixed juncture with the lingual-facing side of the polymeric dental arch form, proximate to a molar tooth socket within a left posterior portion of the polymeric dental arch form; and
iii. at least one polymeric fixed juncture with the lingual-facing side of the polymeric dental arch form, proximate to a molar tooth socket within a right posterior portion of the polymeric dental arch form;
iv. wherein each polymeric fixed juncture with the lingual-facing side of the dental arch form includes a cross-sectional area of at least about 1.5 mm2 and no more than about 20 mm2;

(c) a plurality of additively manufactured removable polymeric support structures extending from the polymeric dental arch; the plurality of removable support structures being of a smaller cross-section than the at least one polymeric removable bracing body;
wherein the additively manufactured polymeric denture base, the at least one additively manufactured polymeric removable bracing body, and the plurality of additively manufactured removable polymeric support structures are additively manufactured together and removably attached; and
wherein the additively manufactured polymeric denture base, the at least one additively manufactured polymeric removable bracing body, and the plurality of additively manufactured removable polymeric support structures each include a photopolymerized polymeric composition.