Patent ID: 11877737
Assignee: ULTRADENT PRODUCTS, INC.
Field: nan (nan)
Classification: CPC nan | IPC A

Claim 14:
15. A cheek and lip expansion device, comprising:
a first upper side member;
a second upper side member;
an upper connecting portion disposed between the first upper side member and the second upper side member;
a first lower side member;
a second lower side member;
a lower connecting portion disposed between the first lower side member and the second lower side member;
a first posterior thickened structure disposed between the first upper side member and the first lower side member, the first posterior thickened structure having an enlarged cross-section relative to adjacent portions of the first upper side member and the first lower side member;
a second posterior thickened structure disposed between the second upper side member and the second lower side member, the second posterior thickened structure having an enlarged cross-section relative to adjacent portions of the second upper side member and the second lower side member; and
a posterior crossbar connected to a first posterior frame arched region and a second posterior frame arched region.