APPLICATOR TIP FOR ROOT CANAL SEALER
    2.
    发明公开

    公开(公告)号:US20240293199A1

    公开(公告)日:2024-09-05

    申请号:US18177565

    申请日:2023-03-02

    IPC分类号: A61C5/50

    CPC分类号: A61C5/50

    摘要: The applicator tip for root canal sealer is used to coat walls of a root canal with root canal sealer prior to filling the root canal with a filler material. The applicator tip is formed from a hollow shell having a connection portion and an application portion. The connection portion is adapted for connection to a supply of root canal sealer, such as a source of pressurized adhesive cement or the like. The application portion has a proximal end and a distal end, a diameter of the application portion continuously decreasing from the proximal end to the distal end. A plurality of recesses are defined in an outer surface of the application portion of the hollow shell, and a plurality of radially spaced frustoconical openings extend through the application portion of the hollow shell, such that each of the openings is centrally located within a corresponding one of the recesses.

    Self-inflating tooth dam
    4.
    发明授权

    公开(公告)号:US11931221B2

    公开(公告)日:2024-03-19

    申请号:US17352816

    申请日:2021-06-21

    申请人: Mark Thoreson

    发明人: Mark Thoreson

    IPC分类号: A61C5/82 A61C5/50

    CPC分类号: A61C5/82 A61C5/50

    摘要: A disposable, self-inflatable, matrix (tooth dam) used to form a temporary, removeable side wall for the placement of a tooth filling material. It has an array of three concavities (distal, central and proximal) formed in a polymer wrap that has a planar substrate sheet affixed across the front face of the wrap. The distal air chamber has a volume that equals or exceeds the combined volume of the central and proximal air chambers. Directly below the distal concavity on the inner face of the planar substrate is an adhesive region. When the distal air chamber is depressed, the air within inflates the other air chambers and it is retained in its compressed state by the adhesive region. The remaining air chambers press against one tooth and exert enough force to elastically secure the planar panel around the adjacent tooth. It prevents the tooth filling material from leaving the prepared tooth and entering the space between.

    ROOT CANAL INSTRUMENT WITH A VARIABLE PITCH

    公开(公告)号:US20220323178A1

    公开(公告)日:2022-10-13

    申请号:US17717185

    申请日:2022-04-11

    IPC分类号: A61C5/42 A61C5/50

    摘要: The invention relates to a root canal instrument (10) having a blade comprising a plurality of helical cutting edges (20), the blade being conical in shape and extending from a tip (11) towards a mandrel (12) of the instrument, the helical edges (20) having a pitch increasing along a longitudinal axis of the instrument from the tip (11) towards the mandrel (12).
    According to the invention, it comprises a ratio between the pitch at the mandrel (12) and the pitch of the end of the tip (11), of between 2 and 4.

    Root canal treatment apparatus
    9.
    发明授权

    公开(公告)号:US11439486B2

    公开(公告)日:2022-09-13

    申请号:US16690492

    申请日:2019-11-21

    IPC分类号: A61C17/02 A61C5/50 A61C17/20

    摘要: The present invention relates to a root canal treatment apparatus for cleaning a root canal, a root canal treatment apparatus for charging a root canal, or a root canal treatment apparatus for cleaning and charging a root canal. The root canal treatment apparatus for cleaning a root canal according to the present invention comprises: a storage container for storing a cleaning liquid or a filler supplied from the outside; an ultrasonic oscillator for applying ultrasonic waves to the cleaning liquid or the filler stored in the storage container; an injection port for injecting, around the root canal, the cleaning liquid or the filler to which the ultrasonic waves have been applied in the storage container; and a nozzle having a suction port for sucking the cleaning liquid or bubbles in the root canal or the bubble.

    FLEXIBLE ELECTRODE MADE OF A METAL BASE MATERIAL

    公开(公告)号:US20220226085A1

    公开(公告)日:2022-07-21

    申请号:US17607062

    申请日:2020-04-06

    申请人: BD-4 GMBH

    摘要: The invention relates to a flexible electrode (8) made of a metal base material (10) with a coating (18) made of polycrystalline doped electrically conductive diamond and an intermediate layer (20) between the base material (10) and the coating (18), wherein the base material (10) is in the form of a needle or wire, wherein at least one circumferential, circular or spiral groove (12) is formed in the base material (10) about a longitudinal axis (17) of the base material (10).