9 results about "Crestal bone" patented technology

The utility model discloses an absorbable net-shaped device for fixing bone grafting materials, and relates to the technical field of medical oral cavity, the absorbable net-shaped device comprises a woven net and bone nails, the woven net is made of absorbable biological materials, tightening ropes are arranged at four corners of the woven net, and each tightening rope is correspondingly wound on one bone nail. The bone nail is rotationally nailed into the dentale, the woven net is tightened to fix the bone grafting material, meanwhile, the woven net is an absorbable biological material and does not need to be taken out through a special operation in the later period, and the pain of a patient and the medical burden are greatly relieved.

The present application relates to a kind of whole guide plate for bone graft sandwich bone grafting simultaneous implantation and manufacturing method, including the implantation guide plate of bone graft and implant, bone graft positioning finishing plate, tooth positioning device of bone area, osteotomy guide plate, tooth bone model of edentulous area, tooth bone model of bone area, the top of the implantation guide plate of bone graft and implant is connected with the bottom of bone graft positioning finishing plate, can be set with the several positioning points corresponding to bone area position in bone area by the guide drill needle hole on bone graft positioning finishing plate, can accurately transplant the bone graft taken to bone area;The osteotomy guide plate can be connected with tooth positioning device of bone area, also can be fixed in bone area according to the several positioning points;The present application can realize accurate, minimally invasive, safe to obtain intraoral autologous bone graft, can provide bone graft acquisition, finishing, implantation and implantation whole process guidance for surgeon, reduce the difficulty of operation, assist surgeon to complete the whole operation more accurately, efficiently, safely.

The utility model provides a maxillary alveolar bone segment traction device, which is characterized in that two opposite sides on an alveolar fracture are respectively a first side and a second side, and a dental bone corresponding to the first side is provided with an operation osteotomy line which is arranged at an interval with the first side; the maxillary alveolar bone segment traction device forms an osteotomy portion between the surgical osteotomy line and the first side by osteotomy along the surgical osteotomy line, the maxillary alveolar bone segment traction device includes two positioning cast crowns and a movable cast crown. According to the maxillary alveolar bone segment traction device, the positioning cast crowns are arranged on the molars on the two sides respectively, stable supporting is provided for the outer traction assembly and the inner traction assembly through the positioning cast crowns, and further, the outer traction assembly and the inner traction assembly can be matched with the elastic piece to provide arc-shaped guiding matched with a dental arch curve for the movable cast crowns; in addition, by arranging the traction assemblies on the inner side and the outer side of the dental arch, a good traction effect can be achieved.

The invention provides a dental implant osseointegration prediction method and system based on dynamic data, and the method comprises the steps: carrying out the feature extraction of preoperative risk assessment data through a time sequence analysis method according to an initial data set, and obtaining a preoperative osseointegration risk feature set; according to the synostosis state change trend, clinical decision support information is generated by adopting a rule-based reasoning method, and the treatment priority of the current stage is determined; if the treatment priority is higher than a preset threshold value, extracting prediction information related to the priority from the dynamic data set through a real-time information matching algorithm to support decision making of doctors; through a real-time matching result of prediction information, a decision tree algorithm is adopted to update supply rule design, and optimized clinical decision support information is obtained; and according to the optimized clinical decision support information, continuously updating postoperative healing monitoring data by adopting a feedback circulation mechanism to obtain a latest osseointegration quality evaluation result.

The utility model discloses an optical positioning accessory for assisting an edentulous jaw implantation operation, which relates to the technical field of medical instruments and comprises an edentulous jaw titanium nail, a bottom plate, a connecting rod, a titanium nut and an optical positioner, according to the utility model, through the matching of the edentulous titanium nail and the titanium nut, the bottom plate is fixed on a dentale, and then the bottom plate is connected with the optical positioner by using the connecting rod, so that the tracking host can be used for surgical navigation, the problem of optical positioning in the current edentulous implant surgery is solved, and the success rate and the safety of the surgery are improved; the adjusting adapter is used as a medium and is detachably connected with the connecting rod and the optical positioner, quick disassembly and assembly are realized, and in addition, the L-shaped connecting rod is matched with the U-shaped bottom plate, so that the optical positioning accessory can be prevented from being in contact with the lips of a patient.

The utility model discloses an artificial tooth implantation nail which comprises a tooth implantation nail main body, the tooth implantation nail main body comprises a main tooth nail, a connecting seat is integrally arranged at the top end of the main tooth nail, an internal threaded hole is formed in the connecting seat, and a tooth crown fixing body is arranged on the upper surface of the connecting seat; by designing an anti-falling reinforcing mechanism, after a main tooth nail is implanted and installed, when a threaded column rotates to enter an inner threaded hole, a limiting push rod is pushed by the threaded column to move in a pushing groove, and when the limiting push rod moves downwards, a trapezoidal push plate is driven to make contact with the surface of an inclined face push plate through a rolling body in an extruding mode to extrude and move the inclined face push plate; the inclined surface push plate drives the extrusion reinforcing bulge to be extruded and clamped in a clamping hole formed in the inner side of the dental bone implanting hole, so that the main dental nail is conveniently reinforced and fixed after being mounted, the main dental nail is more stably mounted and used, and the reinforced fixity of the dental nail main body in implanting mounting is improved.

This invention discloses a chitosan / nanohydroxyapatite guided bone regeneration membrane with a porous composite structure and its preparation method. Using chitosan as the organic matrix, calcium salts and phosphates are uniformly mineralized and crystallized on the surface of the chitosan polymer chains in situ via freeze-drying to form nanohydroxyapatite. This is combined with mechanical extrusion to prepare the chitosan / nanohydroxyapatite guided bone regeneration membrane with a porous composite structure. Leveraging the abundant functional groups (amino groups) of chitosan, the nanohydroxyapatite is oriented and uniformly dispersed in situ, thereby enhancing bone mineralization capacity through nanomechanical enhancement. The dense layer of this membrane effectively prevents rapidly growing tissue cells from entering the root (bone) defect area, while the loose, porous layer guides the recruitment of periodontal ligament (or bone) cells and provides them with growth space, ensuring optimal tissue regeneration. This invention utilizes widely available and affordable raw materials, employs a simple and environmentally friendly process, and produces a product that is easily convertible, making it promising for clinical application in bone and tooth defect repair.

This utility model relates to a dental implant bone thickness measurement probe, comprising a rod and a metal sheet. One end of the rod is formed as a connecting end, and the metal sheet is connected to the connecting end. The rod is used to insert into a cavity in the alveolar bone, and the metal sheet is configured to be flexible to conform to at least one side of the alveolar bone surface where the cavity is located, in order to measure the distance between the cavity and the bone surface. This utility model has a simple structure, which simplifies the operation of measuring bone thickness, improves measurement efficiency, and enables repeatable and rapid measurements.

Fixation system for dental bone regeneration, comprehensive: a) an alloplastic bone implant (2) designed to cover an alveolar ridge area, and b) at least one PEEK screw (3) for fixing this bone implant, characterized in that the PEEK screw (3) consists at least partially of polyetheretherketone and serves to fix the alloplastic bone implant (2) in such a way that it keeps the pressure of the soft tissue (1) away from the underlying area.