(19)
(11)EP 4 042 967 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
09.11.2022 Bulletin 2022/45

(43)Date of publication A2:
17.08.2022 Bulletin 2022/33

(21)Application number: 22154644.3

(22)Date of filing:  01.02.2022
(51)International Patent Classification (IPC): 
A61C 7/00(2006.01)
A61C 7/08(2006.01)
(52)Cooperative Patent Classification (CPC):
A61C 7/002; A61C 7/08; B29C 51/30; B29L 2031/7536
(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30)Priority: 16.02.2021 US 202117176565

(71)Applicant: Ormco Corporation
Brea, CA 92821 (US)

(72)Inventors:
  • Tsai, Evan Yifeng
    Rancho Cucamonga, 91739 (US)
  • Miranda, Karol
    Heredia City (CR)

(74)Representative: CSY Herts 
Helios Court 1 Bishop Square
Hatfield, Hertfordshire AL10 9NE
Hatfield, Hertfordshire AL10 9NE (GB)

  


(54)ORTHODONTIC APPLIANCE WITH BITE STRUCTURES AND METHODS OF MAKING SAME


(57) An orthodontic aligner includes a shell defining at least one cavity sized to receive one of a patient's teeth. The cavity includes a lingual portion, a labial portion, and an occlusal portion. A bite structure forms at least a portion of the occlusal portion and is configured to be spaced apart from an occlusal surface of the patient's tooth by a distant sufficient to interfere with full closure of the patient's jaws. The bite structure has a non-planar surface that does not conform to the patient's tooth. The non-planar surface includes at least two spaced-apart projections separated by a boundary. The spaced-apart projections are spherical-like projections or ellipsoidal-like projections. The boundary has a grid-like appearance that spans the bite structure side to side. The spaced-apart projections define a tooth-engaging plane of the bite structure. The bite structure is an integral portion of the shell.







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