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    DENTAL DEVICE FOR RIDGE PRESERVATION AND PROMOTION OF JAW BONE REGENERATION IN AN EXTRACTION SITE
    4.
    发明申请
    DENTAL DEVICE FOR RIDGE PRESERVATION AND PROMOTION OF JAW BONE REGENERATION IN AN EXTRACTION SITE 有权

    公开(公告)号：US20220151740A1

    公开(公告)日：2022-05-19

    申请号：US17432509

    申请日：2020-02-14

    Applicant: DENTSPLY SIRONA inc. ,  SIRONA DENTAL SYSTEMS GMBH

    Inventor： Martin RUETZE ,  Naim KARAZIVAN

    IPC: A61C8/02 ,  A61C8/00 ,  A61K38/18 ,  A61K45/06

    Abstract: Dental device (1) for ridge preservation around the socket (2) of an extracted tooth and for promoting jaw bone regeneration inside the socket (2) of the extracted tooth, the dental device (1) comprising: a screw (3) which is entirely made of a biodegradable material to eliminate the need for a removal surgery, wherein the screw (3) is adapted for tight fixation within the jaw bone (4) in the socket (2) to prevent micromovements during bone-tissue regeneration, wherein the screw (2) has a length such that its top is, in the inserted state, flush with the alveolar ridge (5) around the socket (2) to promote full bone regeneration inside the socket (2), and wherein the screw (3) has a hollow (6) and pores (7), wherein the diameters of the pore (7) is substantially equal to or larger than 20 micrometers.

    DENTAL PROBE
    6.
    发明申请
    DENTAL PROBE 有权

    公开(公告)号：US20210369120A1

    公开(公告)日：2021-12-02

    申请号：US17337563

    申请日：2021-06-03

    Applicant: DENTSPLY SIRONA inc.

    Inventor： Thomas ERTL ,  Naim KARAZIVAN ,  Alexander SAVIC

    IPC: A61B5/00 ,  A61B5/026

    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.

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