公开(公告)号：US20250127401A1

公开(公告)日：2025-04-24

申请号：US18493174

申请日：2023-10-24

Applicant: DENTSPLY SIRONA Inc.

Inventor： Frederike FRANKE ,  Bjoern VOSS ,  Thomas ERTL ,  Michael TEWES ,  Andreas UNGER

IPC: A61B5/00 ,  A61B1/24

Abstract: Light is projected from a light source in a first direction towards a tooth. The light source generates at least infrared light in the wavelength range of 950 nm to 2500 nm. A colloidal quantum dot (CQD) sensor records one or more surface light distribution images produced at the surface of the tooth by the projected light and the one or more surface light distribution images are used to compute a defect condition of the tooth.

公开(公告)号：US20250127400A1

公开(公告)日：2025-04-24

申请号：US18493135

申请日：2023-10-24

Applicant: DENTSPLY SIRONA Inc.

Inventor： Thomas ERTL ,  Bjoern VOSS ,  Frederike FRANKE

IPC: A61B5/00 ,  G06T5/00 ,  G06T5/50 ,  G06T7/00 ,  G06T7/73

Abstract: Techniques and apparatuses for detecting defects on at least one tooth in the dentin or tooth enamel area that include providing an intra-oral camera that includes a confined light injector; projecting a spatially confined light in a first direction via the confined light injector at an illumination point of the at least one tooth; recording, by an image sensor, one or more surface light distribution images received via captured light that is backscattered from the tooth; and computing, by a tooth defect detection module, a defect condition of the at least one tooth by classifying the one or more surface light distribution images based on computation of light distribution differences in the one or more surface light distribution images caused by defective tooth material.