Patent ID: 11890157
Assignee: LIGHTFORCE ORTHODONTICS, INC.
Field: Medical technology (Instruments)
Classification: CPC A  B  C  G  Y | IPC A  B  G

Claim 14:
15. A ceramic clear aligner attachment manufactured by additive manufacturing, configured to be delivered by an indirect bonding method to a patient's tooth, the ceramic clear aligner attachment comprising:
a base for attachment to the patient's tooth, wherein the base comprises four edges around a surface of the base, comprising:
a first edge and a second edge opposite the first edge;
a third edge and a fourth edge opposite the third edge; and
wherein the surface of the base comprises a first side and a second side, wherein:
the first side includes the third edge and a first portion of the first edge adjacent the third edge and a first portion of the second edge adjacent the third edge; and
the second side comprises the fourth edge and a second portion of the first edge adjacent the fourth edge and a second portion of the second edge adjacent the fourth edge;

a first retaining edge at the first side of the base, wherein:
the first retaining edge comprises a first surface that extends upwards from the first portion of the first edge of the base to a first top of the first surface;
a first back surface of the first retaining edge extends from the first top of the first surface downwards towards the first portion of the second edge of the base; and
the first surface comprises a first angle relative to the base; and

a second retaining edge at the second side of the base, wherein:
the second retaining edge comprises a second surface that extends from the second portion of the second edge of the base to a second top of the second surface;
a second back surface of the second retaining edge extends from the second top of the second surface downwards towards the second portion of the first edge of the base;
the second surface comprises a second angle relative to the base, such that the first and second retaining edges can be subject to different forces by a clear aligner.