The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2023
Filed:
Jun. 03, 2021
Dentsply Sirona Inc., York, PA (US);
DENTSPLY SIRONA INC., York, PA (US);
Abstract
A dental probe for determining the vitality of a tooth, comprising a light emitter and a light receiver, wherein the light emitter emits light from an emitter surface adapted to be positioned on a hard dental surface of a tooth, wherein the light receiver collects light incident on a receiver surface adapted to be positioned on a hard dental surface of the tooth so that the optical path of the light emitted from the light emitter passes at least through a portion of the pulp chamber of the tooth. The light receiver includes a light shielding spacer member adjacent to the optical path for establishing and maintaining a distance of at least 50 μm between the gum line and the optical path at the receiver surface. The light emitter further a light shielding spacer member adjacent to the optical path for establishing and maintaining a distance between the gum line and the optical path at the emitter surface, wherein the light shielding spacer member establishes and maintains a distance of at least 50 μm between the gum line and the optical path at the emitter surface, and in that an apical-coronal diameter of the light emitter surface and the light receiver surface is at most 1200 μm in the direction normal to the optical path.