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

Claim 6:
7. An additively manufactured dental system for use in fabricating a dental prosthesis, the additively manufactured system comprising:
(a) an additively manufactured polymeric denture base that includes:
(i) a first additively manufactured polymeric dental arch form having:
a) a buccal-facing side;
b) a lingual-facing side; and
c) a plurality of polymeric tooth sockets, wherein the plurality of polymeric tooth sockets are disposed along the first polymeric dental arch form between the buccal-facing side and lingual-facing side;

(ii) a first additively manufactured polymeric removable bracing body, wherein the first polymeric removable bracing body is joined to the polymeric denture base at two or more locations, such that the first polymeric removable bracing body includes:
a) at least one fixed juncture with the lingual-facing side of the first polymeric dental arch form, proximate to a molar tooth socket within a left posterior portion of the first polymeric dental arch form; and
b) at least one fixed juncture with the lingual-facing side of the first polymeric dental arch form, proximate to a molar tooth socket within a right posterior portion of the first polymeric dental arch form; and

(iii) a second additively manufactured polymeric removable bracing body, wherein the second polymeric removable bracing body is joined to the polymeric denture base at two or more locations, such that the second polymeric removable bracing body comprises:
a) at least one fixed juncture with the lingual-facing side of the first polymeric dental arch form, proximate to a premolar tooth socket within the left posterior portion of the first polymeric dental arch form; and
b) at least one fixed juncture with the lingual-facing side of the polymeric dental arch form, proximate to a premolar tooth socket within the right posterior portion of the first polymeric dental arch form;

(iv) wherein each polymeric fixed juncture with the lingual-facing side of the first polymeric dental arch form includes a cross-sectional area of at least about 1.5 mm2 and no more than about 20 mm2;
(v) a plurality of additively manufactured removable support structures extending from the first polymeric dental arch; the plurality of removably support structures being of a smaller cross-section than the first polymeric removable bracing body and the second polymeric removable bracing body;
(vi) wherein the first polymeric removable bracing body is not joined to the second polymeric removable bracing body;
(vii) 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;

(b) an additively manufactured maxillary polymeric denture base that includes:
(i) a second additively manufactured polymeric dental arch form having:
a) a buccal-facing side;
b) a lingual-facing side;
c) a plurality of additively manufactured polymeric tooth sockets, wherein the plurality of polymeric tooth sockets are disposed along the second polymeric dental arch form between the buccal-facing side and lingual-facing side; and

(ii) an additively manufactured palatal vault portion, wherein the palatal vault portion is integrally formed with and extended across the lingual-facing side of the second polymeric dental arch form;
(iii) at least one additively manufactured polymeric removable bracing body, wherein the at least one polymeric removable bracing body is joined to the maxillary polymeric denture base at a plurality of locations, such that the at least one polymeric removable bracing body includes:
a) at least one fixed juncture with the lingual-facing side of the palatal vault portion;
b) at least one fixed juncture with the lingual-facing side of the second polymeric dental arch form, proximate to a molar tooth socket within a left posterior portion of the second polymeric dental arch form; and
c) at least one fixed juncture with the lingual-facing side of the second polymeric dental arch form, proximate to a molar tooth socket within a right posterior portion of the second polymeric dental arch form;

(iv) wherein each polymeric fixed juncture with the lingual-facing side of the polymeric dental arch form includes a cross-sectional area of at least about 1.5 mm2 and no more than about 20 mm2;
(v) a plurality of additively manufactured removable support structures extending from the second polymeric dental arch; the plurality of removably support structures being of a smaller cross-section than the at least one polymeric removable bracing body;
(vi) wherein the additively manufactured maxillary polymeric denture base, the at least one additively manufactured polymeric removable bracing body, and the plurality of additively manufactured removable support structures are additively manufactured together and removably attached.