30 results about "Alveolar cavity" patented technology

The invention discloses a hydroxy apatite / zirconia composite bio-ceramic and a preparation method thereof, and relates to the field of biological materials. The hydroxy apatite powder is taken as the basic material, nano zirconia is taken as the cladding material, and the nano zirconia is coated on the surface of the hydroxy apatite surface; wherein the average particle size of the hydroxy apatite powder is 10 to 50 [mu]m, the thickness of the nano zirconia cladding layer is 100 to 300 nm; and the hydroxy apatite powder is prepared through a precipitation reaction method or a hydrothermal method. The preparation method comprises steps of preparing hydroxy apatite powder, carrying out chemical vapor deposition reactions, and performing high temperature solid state method. The provided hydroxy apatite / zirconia composite bio-ceramic has a high mechanical strength and good biocompatibility, can be used to repair or fill tooth or alveolar cavity and repair bone damage, and can also be used as artificial bone cores to treat bone tuberculosis.

The invention discloses an oral implant device, comprising alveolar bone, a screw-in body is fixedly installed in the bottom groove of the alveolar bone cavity, and a base is arranged in the alveolar bone cavity on the upper side of the screw-in body, One end of the base away from the screw-in body is provided with a threaded groove, and the inner groove wall of the threaded groove is threadedly connected with a threaded seat. In the device, the bottom end of the implant is fixed on the screw-in body screwed into the alveolar bone through a screw that penetrates deep into the alveolar bone, and hydroxyapatite is filled in the filling cavity provided with the screw at the base of the implant. The connection port is connected with the filling cavity and the alveolar bone cavity, so as to ensure the stable installation of the implant in the alveolar cavity cavity and avoid loosening; the device flexibly clamps the clamping plate on the installation seat with the denture Between the lifting plate and the clamping plate, it can flexibly install and replace the denture without moving the lower part of the implant denture, avoid secondary injury to the patient, and improve the work efficiency of medical staff.

A method for assisted implant replacement based on deep learning, an assisted intelligent system, and a computer-readable storage medium, wherein the system is used to obtain tooth information by segmenting 2-dimensional images of teeth to assist in the selection of implants, and by predicting the implant area Cavity data at the alveolar bone to assist the design of the preoperative implant plan, including: a panoramic image generation unit, which is used to convert the 3D oral data CBCT of the tooth image file to be processed into 2D image data in a panoramic format; The tooth segmentation unit is used to input the image data into the preset image classification model for segmentation to obtain the segmented image data of the tooth; and the alveolar bone information prediction unit is used to perform feature extraction on the segmented image data using the preset feature extraction model, To determine the cavity data related to the alveolar bone. In this way, it can assist the physician to judge the patient's tooth condition to select the appropriate implant, and assist the design of the preoperative implant plan by predicting the data of the alveolar bone cavity.

The invention relates to an adjustable fixed gingival separator for dental implanting surgery. The adjustable fixed gingival separator comprises a tooth covering structure, a separating structure and a regulating structure, wherein the front end of the tooth covering structure is connected with the separating structure; the rear end of the tooth covering structure is connected with the regulating structure; the tooth covering structure and the separating structure are in crossed connection; the tooth covering structure is in a left and right two-sheet structure form, is basically anastomotic with the tooth shape and is a straight sheet-shaped structure; the separating structure is of a left and right two-sheet structure, is basically anastomotic with the alveolar cavity shape and is a vertical sheet-shaped structure; a left tooth covering structure sheet is connected with a right separating structure sheet; a right tooth covering structure sheet is connected with a left separating structure sheet; the rear ends of the left and right tooth covering structure sheets are connected; a connecting section is arranged between the corresponding tooth covering structure sheet and the separating structure sheet; the connecting section is arranged in a structure which does not influence the regulation of the tooth covering structure and the separating structure; the regulating structure is arranged on the left and right tooth covering structure sheets; the rear end structure of the regulating structure is longer. The gingival separator has the advantages that gingivae can be effectively separated out; the operation is simple and convenient.

The invention discloses a self-shrinking preformed crown retention joint strip which comprises a functional joint strip, the functional joint strip comprises a force application section and at least two sections of pasting strips, the force application section is used for being attached to the surface of a preformed crown, the at least two sections of pasting strips are arranged at the two ends of the force application section respectively, at least one section of pasting strip is connected with the force application section through a shrinking strip, and the other section of pasting strip is connected with the shrinking strip. The functional joint strip integrally forms an integral structure, the at least two sections of the joint strips are respectively used for being adhered to chewing mucous membranes on the surfaces of alveolar cavities on the lip side and the tongue side of the preformed crown, and the contraction strip is made of a shape memory material. When the retention joint strip is used, after the force application section is attached to the preformed crown, the remaining parts on the two sides are aligned with the lip face and the lingual face of the preformed crown, and force is applied downwards from the two faces to complete attachment of the functional joint strip. The force application section can apply pressure to the preformed crown through contraction of the contraction strip, and the joint strip is convenient to use, simple in operation process, low in requirement for skills of physicians and wide in applicability.

The invention belongs to the technical field of biological medicines, and discloses application of intervening BOK in preparation of a medicine for treating COVID-19. In order to search a new immunotherapy scheme for comprehensive treatment of COVID-19, the lung tissue of patients with COVID-19 is researched, and a research result prove that the expression quantity of BOK in the lung tissue cells of the patients with COVID-19 is increased, and BOK gene knockout has an effect on inhibiting new coronal virus membrane protein from inducing apoptosis of human lung cells and vascular endothelial cells; and the effect of inducing lung tissue apoptosis by the new crown virus membrane protein can be inhibited by injecting lentivirus into the trachea of a mouse to express shRNA aiming at BOK, and the knock-down of BOK indicates that BOK is expected to be applied to the comprehensive treatment of COVID-19. The BOK is made into a medicine for treating COVID-19 so as to relieve lung injury and alveolar cavity fluid infiltration of patients with COVID-19, and the medicine is suitable for protecting lung tissues and organs in the development process of COVID-19.