(19)

(11)

EP 4 581 595 A2

(12)

(88) Date of publication A3: 04.04.2024 (43) Date of publication: 09.07.2025 Bulletin 2025/28 (21) Application number: 23777404.7 (22) Date of filing: 30.08.2023

(51) International Patent Classification (IPC):  G06T 19/20(2011.01) A61C 1/00(2006.01) G06T 19/00(2011.01) (52) Cooperative Patent Classification (CPC): G06T 17/00; G06T 19/20; G06T 2219/2004; G06T 2210/41; G06T 19/006; A61C 7/08; A61C 9/0053; A61C 7/002; G06T 7/579; G06T 2207/30036; G06T 2207/30196 (86) International application number: PCT/US2023/031561 (87) International publication number: WO 2024/049918 (07.03.2024 Gazette 2024/10)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 30.08.2022 US 202263373921 P 29.08.2023 US 202318239712 (71) Applicant: Align Technology, Inc. San Jose, CA 95134 (US)	(72) Inventors: CHANG, Michael 8047 Zürich (CH) HUBER, Niko Benjamin 6300 Zug (CH) MEYER, Eric Paul 8032 Zürich (CH) TANSKANEN, Petri 8952 Schlieren (CH) SAURER, Olivier 8057 Zürich (CH) (74) Representative: Hancox, Jonathan Christopher et al Venner Shipley LLP Windsor House 6-10 Mount Ephraim Road Tunbridge Wells, Kent TN1 1EE Tunbridge Wells, Kent TN1 1EE (GB)