3D PRINTED OBJECTS WITH SELECTIVE OVERCURE REGIONS

    公开(公告)号:US20200316856A1

    公开(公告)日:2020-10-08

    申请号:US16837978

    申请日:2020-04-01

    Abstract: A method of manufacturing a three-dimensional (3D) object may include fabricating a support structure and fabricating the 3D object on the support structure, wherein the support structure contacts the 3D object at a support region of the 3D object. The method further includes overcuring the 3D object at an overcure region of the 3D object, wherein the overcure region is distinct from the support region, and removing the support structure from the 3D object. After removal of the support structure, a support mark remains on the 3D printed object where the support structure had contacted the 3D object, wherein the overcure region of the 3D object projects past the support mark.

    THREE DIMENSIONAL IMAGING APPARATUS WITH COLOR SENSOR

    公开(公告)号:US20200296352A1

    公开(公告)日:2020-09-17

    申请号:US16890972

    申请日:2020-06-02

    Abstract: A system includes an intraoral scanner and a computing device operatively connected to the intraoral scanner. The intraoral scanner generates three-dimensional scan data of a tooth and further performs color measurements of the tooth. The computing device receives the three-dimensional scan data of the tooth during a first mode of operation. The computing device invokes a second mode of operation, and presents, in a graphical user interface (GUI), an image of the tooth. The computing device further presents, in the GUI, data indicating a plurality of color zones of the tooth and further indicating, for at least one color zone of the plurality of color zones, that insufficient color information has been received, wherein each color zone indicates a separate region of the tooth that is expected to have approximately uniform color.

    THERMOFORMING MULTIPLE ALIGNERS IN PARALLEL
    266.
    发明申请

    公开(公告)号:US20200290262A1

    公开(公告)日:2020-09-17

    申请号:US16817132

    申请日:2020-03-12

    Abstract: Embodiments relate to thermoforming multiple aligners simultaneously. In one embodiment, an aligner manufacturing system includes a plate, a heating section, and a thermoforming chamber. The plate is configured to secure a first mold of a first dental arch and a second mold of a second dental arch. The heating section is configured to heat a sheet of plastic to generate a heated sheet. The thermoforming chamber is configured to simultaneously thermoform the heated sheet over the first mold of the first dental arch and the second mold of the second dental arch to form a first aligner shaped to fit the first dental arch and a second aligner shaped to fit the second dental arch.

    DIGITAL DENTAL MODELING
    267.
    发明申请

    公开(公告)号:US20200275993A1

    公开(公告)日:2020-09-03

    申请号:US16877132

    申请日:2020-05-18

    Abstract: Embodiments are provided for digital dental modeling. One method embodiment includes receiving a three-dimensional data set including a first jaw and a second jaw of a three-dimensional digital dental model and receiving a two-dimensional data set corresponding to at least a portion of the first jaw and the second jaw. The method includes mapping two-dimensional data of the two-dimensional data set to the three-dimensional digital dental model by transforming a coordinate system of the two-dimensional data to a coordinate system of the three-dimensional data set. The method includes positioning the first jaw with respect to the second jaw based on the two-dimensional data mapped to the three-dimensional data set. The method includes using at least a portion of the two-dimensional data mapped to the three-dimensional data set as a target of movement of the first jaw with respect to the second jaw in the three-dimensional digital dental model.

    Apparatus and method for measuring surface topography optically

    公开(公告)号:US10743967B2

    公开(公告)日:2020-08-18

    申请号:US16287120

    申请日:2019-02-27

    Abstract: An apparatus is described for determining surface topography of a three-dimensional structure. The apparatus can include a probe and an illumination unit configured to output a plurality of light beams. In many embodiments, the apparatus includes a light focusing assembly. The light focusing assembly can receive and focus each of a plurality of light beams to a respective external focal point. The light focusing assembly can be configured to overlap the plurality of light beams within a focus changing assembly in order to move the external focal points along a direction of propagation of the light beams. The apparatus can include a detector having an array of sensing elements configured to measure a characteristic of each of a plurality of light beams returning from the illuminated spots and a processor coupled to the detector and configured to generate data representative of topography of the structure based on the measured characteristic.

    Shape engineered aligner—auto shaping

    公开(公告)号:US10736716B2

    公开(公告)日:2020-08-11

    申请号:US15660892

    申请日:2017-07-26

    Inventor: Ali Kakavand

    Abstract: The present invention relates to orthodontic positioning appliances and related methods. An appliance in accordance with the present invention has teeth receiving cavities shaped to receive and apply a resilient positioning force to the patient's teeth. At least one of the cavities of the appliance includes a portion shaped to compensate for non-elastic deformation due to use of the appliance.

    ADJUSTMENT OF TOOTH POSITION IN A VIRTUAL DENTAL MODEL

    公开(公告)号:US20200229902A1

    公开(公告)日:2020-07-23

    申请号:US16841556

    申请日:2020-04-06

    Abstract: The present disclosure provides computing device implemented methods, computing device readable media, and systems for adjustment of tooth position in a virtual dental model. Virtual dental modeling can include detecting space and/or collision between posterior teeth of an upper jaw and posterior teeth of a lower jaw in a virtual dental model that has been set in a preliminary target position. An energy function can be defined including the space and/or collision, tooth root movement, and align points. Weights can be assigned for each variable in the energy function. A position of the posterior teeth of the upper jaw and the posterior teeth of the lower jaw can be adjusted in six degrees of freedom to minimize the energy function. The detection, definition, assignment, and adjustment can be repeated until the energy function converges. The weights can be adjusted to reduce the space and/or collision.

Patent Agency Ranking