144 results about "Superior Maxillary Bone" patented technology

The invention discloses a three-dimensional clinical research method of deciduous tooth anchorage on maxilla hypoplasia under the guidance of an HPC line. According to the invention, the deciduous tooth anchorage technology guided by the HPC line breaks through the limitation of the traditional tooth support type and bone support type correction, and creates a third anchorage selection mode for osteomalocclusion. By accurately positioning the central axis of the deciduous tooth crown as a supporting point, the technology not only retains the effectiveness of the traditional method on the transverse expansion of the maxilla, but also remarkably reduces the side effects of mesial inclination, vertical lifting and the like of the permanent tooth, and realizes the dual purposes of bony reconstruction and dentition stabilization. The innovativeness is that the physiological characteristics of deciduous teeth are combined with the biomechanical principle, the technical scheme is provided for the first time in China, the blank of correction of complex malocclusion in mixed dentition is filled, and a safer and more efficient treatment path is provided for clinic.

The invention provides a complete denture manufacturing method for determining a plane and jaw position relation based on digitization, and relates to the technical field of dentistry, the method comprises the following steps: using a finished product tray to prepare an initial impression, filling a plaster model, and scanning to obtain a three-dimensional data STL file of the plaster model of the upper and lower jaws; recording the occlusion relationship by using oil sludge silicone rubber, and scanning to obtain a three-dimensional data STL file of the upper and lower jaw plaster model with the occlusion record silicone rubber; obtaining a CBCT DICOM file when the patient wears and occludes the silicone rubber, and extracting a three-dimensional data STL file of the face, the maxilla and the mandible; fitting the archive to construct a virtual patient; and digitally designing a plane and a median relation jaw position, and the like. According to the method, the upper and lower jawbones are segmented by using CBCT DICOM data, the position of the lower jawbone is moved by using software, the jaw position is accurately designed, and the false tooth is manufactured on the basis of a correct plane and a correct median relationship, so that temporomandibular joint health and false tooth stability of a patient are facilitated.

Surgical device for mounting a zygomatic implant, which comprises a support structure (2), intended to be abuttingly fixed on a zygomatic or maxillary bone (O) of a patient, guide means (3), mechanically fixed to the support structure (2) and comprising at least two centering elements (30), provided with respective centering through holes (30'), aligned with each other along an insertion direction (X) and adapted to be engaged slidably by a work tool (F) in order to orient the latter in the insertion direction (X). The support structure (2) further comprises at least two abutment portions (20), distal from each other, shaped to place on the bone (O) to which they are intended to be mechanically fixed, and two or more support arms (21), which are extended projectingly from the abutment portions (20), and each of which carry mounted at least one of the centering elements (30) mentioned above.

Methods of taking a scan of a patient's oral cavity without requiring removal of a healing cap coupled within the implant in the subgingival void. The method may include providing an anatomical healing cap received within the subgingival void of a given tooth position, where the anatomical healing cap is coupled into an implant in the void. A scanning body or an impression post is inserted into an open end (e.g., the hollow core) of the anatomical healing cap, in-situ, with the anatomical healing cap positioned in the subgingival void, and the implant thereunder (or thereover for a maxillary tooth position). The scanning body or impression post is used as a reference in making the impression or scan. Because this is done without requiring removal of the healing cap, further collapse of the gingival tissue surrounding the void is prevented.

The invention relates to the technical field of orthodontics and medical image processing, in particular to an artificial intelligence-based automatic positioning method and system for a maxillary bone expansion device. The positioning method comprises the following steps: taking a cone beam computed tomography image and intraoral scanning data of a patient; segmenting a key anatomical structure based on the scanned image, wherein the key anatomical structure comprises an incisor foramen and a transverse palate slit; automatically identifying a plurality of cranio-maxillofacial mark points based on the scanned image, and establishing a maxilla three-dimensional coordinate system; based on the three-dimensional coordinate system, the intraoral scanning data and the key anatomical structure, positioning adjustment is carried out on the arch expander to determine the final positioning posture, and positioning adjustment comprises the steps that the safe distance between the arch expander and the surface of the palate mucosa is screened, and contact with the key anatomical structure is avoided; and outputting the three-dimensional parameters of the final positioning posture. According to the invention, the automatic, intelligent and safe placement of the arch expanding device is realized, so that the design efficiency is improved, the operation difficulty is reduced, and the clinical safety and the arch expanding effect are guaranteed.

The present invention relates to an orthodontic appliance (1) adapted to fit the maxilla of a patient comprising A) at least one central retractor (2) incorporating an expansion screw (4) allowing its retraction and the subsequent retraction of the maxillary arch (MA) of the patient, which central retractor (2) is integral with: A1) A first symmetrical pair of posterior retention arms (5), each retention arm (5) being coupled to a ring (3) of a first pair of rings (3) allowing the appliance (1) to be fixed to the right and left permanent molars of the maxillary arch (MA) of the patient, at least one of the rings (3) also constituting the distal element of a distalization assembly (12) comprising at least two elements, A2) At least one symmetrical pair of anterior retention arms (8) which bears against the palatal surface of teeth anterior to the right and left molars to which the first pair of rings (3) are fixed right and left;A3) A second symmetrical pair of posterior retention arms (6), each retention arm (6) being formed of two distinct segments with a first segment coupled to a ring (3) of the first pair of rings (3) and a second segment coupled to the central spreader (2), which first and second segments are associated by a joint (7).

The utility model provides a bone anchorage type maxillary distraction osteogenesis device which comprises a spiral expansion device, and a rear base plate of the spiral expansion device is fixed to the rear half section of the maxillary bone through a left anchorage nail and a right anchorage nail. The front base plate and the rear base plate are respectively connected with at least two belt rings through belt ring connecting rods, the left front belt ring and the right front belt ring connected with the front base plate are at least sleeved on the first front molars on the corresponding sides, and the left rear belt ring and the right rear belt ring connected with the rear base plate are sleeved on the first molars and / or the second molars on the corresponding sides; the two front band rings are connected through a labial arch, and a lip baffle is fixed in the middle of the labial arch; a traction hook matched with a front tractor is fixedly connected to the outer ring face of the rear belt ring. According to the utility model, the osteotomy gap between the first premolar and the second premolar can be stably and effectively stretched, so that the aim of correcting skeletal hypoplasia or repairing bone defects is fulfilled.

The invention discloses a zygomatic implant, which belongs to the technical field of dental implant, and comprises a zygomatic bone end implant, the zygomatic bone end implant is connected with a maxillary bone end implant through a connecting part, the outer side of the zygomatic bone end implant is provided with a first thread part, and the outer side of the maxillary bone end implant is provided with a second thread part. The thread diameter of the first thread part is smaller than that of the second thread part. And the connecting part is a rod body with a smooth surface. Through the sectional design of the zygomatic bone end implant, the connecting part and the maxillary bone end implant and the combination of different thread structures and smooth surfaces, the defects of the zygomatic implant in the prior art in the aspects of stability, cleaning difficulty, postoperative complications and the like are overcome, and the stability and antibacterial ability of the implant are improved.

A forceps including a gripping assembly. The gripping assembly includes an upper jaw and a lower jaw. The upper jaw includes a proximal end and a distal end. The upper jaw includes an upper tooth having an upper proximally facing canted tooth surface and an upper distally facing canted tooth surface. The lower jaw includes a proximal end and a distal end. The lower jaw includes a socket having a lower distally facing canted socket surface and a lower proximally facing socket surface. The upper jaw, the lower jaw, or both are moveable so that the gripping assembly moves between an open position and a gripping position, in the gripping position, a gap is defined between the upper distally facing canted tooth surface and the lower proximally facing socket surface.

An intraoral device system includes an intraoral device; an upper splint structured to engage with at least a portion of one or more teeth on a maxilla of a patient; a lower splint structured to engage with at least a portion of one or more teeth on a mandible of the patient; a drive system for moving the lower splint with respect to the upper splint; and an adjusting feedback system. The adjusting feedback system can comprise a memory storing machine-readable instructions; and a control system including one or more processors configured to execute the machine-readable instructions. The machine readable instructions can cause the control system to: receive sensor data from one or more sensors associated with the patient; process the sensor data to determine a respiratory event likelihood parameter of the patient; and output control instructions to the intraoral device that operate the drive system to move the lower splint with respect to the upper splint responsive to the determined respiratory event likelihood parameter.

Title: Bone biostimulation device suitable for the oral cavity Bone biostimulation device (3) suitable for the oral cavity, comprising:- an arm (4) provided with a fixing interface, in particular an opening (13), capable of cooperating with a vibration generator (2) such as an electric toothbrush handle, and- a bone biostimulation head (5) fixed to one end of the arm, the head comprising a tip (6) made of flexible material intended to be pressed against a maxillary bone structure, in particular a bone crest (22), to transmit vibrations to the maxillary bone structure to stimulate bone growth. Figure to be published with the abstract: Figure 1

1. The name of this design product: Fully adjustable front traction device. 2. Purpose of this product design: For use in the orthodontic department for in vitro auxiliary correction and traction of the maxillary bone. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The rear view is symmetrical to the main view, so the rear view is omitted.

The present application relates to a kind of nasal ala base subperiosteal implant retention method, belong to plastic surgery medical instrument technical field.The present application provides a kind of nasal ala base subperiosteal implant soft tissue suspension retention method and its implant and system.The method includes: implant is placed into maxillary bone subperiosteal interstice, and implant fixed wing is fixed with the soft tissue anchor point such as alar base ligament of alar elevating lip muscle using drug-loaded degradable suture and is suspended and fixed.Implant surface is provided with the microporous structure of guiding tissue ingrowth, and is provided with the drug depot recess of filling load immunomodulator temperature-sensitive hydrogel.Postoperative healing process, suture is released under the action of tension to accelerate proangiogenic factor and promote local vascularization, and temperature-sensitive hydrogel slow-release immunomodulator induces macrophage to repair type polarization, and cooperatively promotes the biological chimeric fixation of implant and soft tissue.The present application can realize the double stable retention of implant, reduces postoperative displacement risk.

The utility model relates to the field of oral implants, and discloses a Z-shaped subperiosteal implant, comprising a bracket, a front wing and a rear wing connected with the bracket, wherein the front wing, the rear wing and the bracket are three-dimensional structures that conform to the maxillary bone of a human body; the bracket is used to be attached to the surface of the maxillary bone, and a plurality of bases are arranged along the length direction of the bracket, and one end of the base away from the bracket penetrates into the gums for fixing the bracket; the front wing and the rear wing are respectively arranged on both sides of the bracket in the width direction, the front wing is used to be attached and fixed to the surface of the canine support of the maxilla, and the rear wing is located on the side of the greater palatine foramen close to the maxilla and is used to be attached and fixed to the palate side of the maxillary posterior teeth area and the surface of the palatine bone; the rear wing part is placed on the palate side of the maxillary posterior teeth area and the surface of the palatine bone, which can avoid performing a large flap operation on the buccal side, simplify and shorten the operation process, reduce the difficulty, make the operation simpler and safer, and can also reduce the pressure of the implant on the soft tissues on the lip and cheek sides, avoid the occurrence of soft tissue retreat, and reduce the probability of peri-implantitis.

The invention discloses a rapid suspension device for maxillary fracture, belongs to the technical field of medical emergency treatment instruments, and aims to solve the problem that a rapid, stable and portable external fixing device is lacked in maxillary fracture emergency treatment in a battlefield environment. The device comprises a head sleeve assembly, a pull rope locking mechanism, an insertion assembly and a maxilla bracket assembly, the head sleeve assembly comprises an annular head sleeve and a cross belt, the pull rope locking mechanism is installed on the two sides of the head sleeve through the adjusting assembly, the plug-in assembly is composed of a detachable plug-in buckle female head and a detachable plug-in buckle male head, and the maxilla bracket assembly comprises a left denture, a right denture and an arc-shaped connecting rod. The device adopts a magic tape, a BOA knob and a plug-in mounting structure, so that quick mounting and tension adjustment are realized, the distance between denture supports can flexibly adapt to different wounded persons, a medical metal material can be repeatedly disinfected, maxillary fracture bone blocks can be effectively supported forwards, backward falling is prevented, the smoothness of the upper respiratory tract is guaranteed, and the device is adaptive to battlefield first-aid efficient treatment requirements; the survival rate of the wounded with maxillofacial trauma can be obviously improved.

A subperiosteal jaw implant 100 comprising an annular baseplate 102 anatomically contoured for attachment over the alveolar ridge of a mandible or maxilla bone. The implant comprises one or more suppo

The invention relates to the technical field of orthodontic medical instruments, in particular to a dentition tongue side stress application traction device, an anchorage nail of the device can be arranged on the upper jaw palatal side portion of the dentition tongue side, a traction hook can be fixed relative to anterior teeth and extends from the anterior teeth to the dentition tongue side, a guide rod penetrates through a directional catheter located on the dentition tongue side, and the directional catheter is connected with the traction hook. The draw bar is fixedly connected with the draw hook; according to the application, the anchorage nail is arranged on the palatal side part of the upper jaw bone on the dentition tongue side, and the influence of loosening or falling of the anchorage nail on the treatment efficiency is reduced by utilizing the advantage of compact bone in the area; meanwhile, the guide rod penetrates through the directional catheter and is fixedly connected with the traction hook, so that the orthodontic force is strictly applied along the extension direction of the guide rod, and the risk of accidental rotation or inclination of teeth can be reduced; the traction piece is connected with the traction hook and the anchorage nail or is connected with the traction hook and the rear teeth, no additional connecting device needs to be added, the traction piece can be effectively matched with the orthodontic appliance to correct the teeth, the operation process is simplified, and the treatment cost is reduced.

The present invention relates to a guide for an autologous bone graft, in a printed model of a jaw (1) of a patient, which comprises a stop (3) formed by a perforated plate, from which support projections (4,5,6) emerge for supporting the alveolar bone of the patient's jaw or maxillary, which define through holes between the projections (4,5,6), the stop (3) having respective grooves (31) on the sides of the projections (4,5,6) to support the sheets (0). The invention may comprise brackets (2) that can be attached to the printed model, facing the grooves or a screw hole (32) for screwing to the teeth.

The invention discloses a biomechanical front traction reverse joint appliance which comprises an upper jaw front traction appliance body, and a traction indication structure with a connecting line mark is arranged between a traction structure of the upper jaw front traction appliance body and an impedance center of an upper jaw bone, so that a clinician can conveniently judge the position relation between a traction direction and the impedance center. The invention also discloses a specific manufacturing scheme of the appliance structure. The manufacturing scheme comprises the following steps: constructing a three-dimensional model of the jaw bone and the dentition of a patient based on oral cavity scanning and image examination of the patient, determining the resistance center of the maxilla bone, and constructing and displaying the structure on the appliance according to the connection line indication of the resistance center of the maxilla bone and the traction device. According to the invention, a doctor can conveniently formulate a reasonable traction direction according to different vertical bone surface types of a patient clinically, the prejudgment of the traction effect is increased, and the clinical treatment efficiency is improved.

An arch bar system for maxillomandibular fixation is disclosed. A contourable, trim-to-fit bar includes a series of elongated oval apertures oriented substantially parallel to the bar axis. The apertures guide wire, coated suture, or other ligatures at varied approach angles, limit vertical clearance to resist slippage, and cooperate with intervening structural columns to distribute loads while the bar is cinched to teeth. Low-profile depending attachment features—cleats and / or J-hooks—project below the lower edge to receive interarch wire loops, guiding elastics, or other connectors. All patient-facing edges and transitions are radiused to minimize gingival and mucosal trauma. Bars may be metal or engineered polymer and segmentable for partial-arch use. Methods include threading ligatures through successive apertures to secure each bar and joining opposing bars at the depending features. Kits include paired bars, ligatures, interarch connectors, and tools.

Orthodontic device (1) capable of causing a displacement of a mandible relative to a maxilla, comprising a lower part secured to said mandible and an upper part secured to said maxilla, connected in an articulated manner by two telescopic connecting rods (2), characterized in that the upper and lower parts each comprise a frame (3) produced digitally to at least partially surround a part of the teeth of the maxilla and the mandible, each frame (3) having a tongue (5) projecting laterally and towards the outside of the maxilla or the mandible, the tongue (5) comprising an orifice (9) comprising means for coupling an articulation element (7) of the connecting rod (2). Figure for the abstract: Fig. 6

The present invention provides a vessel harvesting device including: a jaw structure mounted on a distal end of a cylindrical body and including an upper jaw and a lower jaw that are opened and closed; and a cutter blade disposed between the upper jaw and the lower jaw and moving in a direction of the axis. The jaw structure includes clamping surfaces of the upper jaw and the lower jaw facing each other, planar electrodes formed on the clamping surfaces, respectively, and an insulating portion formed on at least one of the clamping surfaces and located distal to the planar electrode, the insulating portion being formed of an insulating material. The clamping surface of the upper jaw and the clamping surface of the lower jaw have an inclination angle (θ) that allows contact of only the insulating portion at the distal end when the jaw structure is closed.

The invention relates to the technical field of orthodontic tooth movement in animal experiments, in particular to a mouse orthodontic tooth movement model and a construction method thereof, and the mouse orthodontic tooth movement model comprises a traction assembly and an anchorage nail; the laboratory mouse is provided with a maxillary bone, second molar teeth growing on the maxillary bone and incisors growing on the maxillary bone, first molar teeth of the laboratory mouse are extracted, and an avoiding space is formed in front of the second molar teeth after the first molar teeth are extracted; the anchorage nail is connected to the maxillary bone and is positioned between the second molar and the incisors; the anchorage nail is fixed after being implanted into the maxillary bone, so that the position change of the traction assembly caused by connecting the traction assembly to the incisors can be avoided; the traction assembly is arranged between the second molar and the anchorage nail, the front end of the traction assembly is connected with the anchorage nail, the rear end of the traction assembly can penetrate through the avoiding space and is connected with the second molar, the second molar is used as an experimental moving tooth, and the movement rule of human clinical orthodontic teeth can be better simulated.

A system and method for creating a model of a patient's mandible and any teeth supported from the mandible and manipulating the mandible relative to anatomical features of the patient's maxilla. The system uses markers positioned on the mandible and on the maxilla to create a functional mandibular axis that approximates an axis through the condyles of the patient. The functional mandibular axis and geometric and anatomical information about the patient's upper and lower jaw are then used to create prostheses for the patient. The system is also used for making corrections to the prosthesis.

A method of setting a jaw gap for the end effector of a surgical instrument includes moving opposing upper and lower jaws of the end effector toward a closed position, wherein the upper jaw includes a first component part matable with a second component part at a mated interface. The method further includes placing a shim having a predetermined thickness between at least a portion of the upper and lower jaws such that the shim engages the lower jaw. The upper and lower jaws are progressively closed until the second component part of the upper jaw engages the shim to define the jaw gap between the lower jaw and the second component part of the upper jaw. The first and second component parts are then joined at the mated interface while the lower jaw and the second component part of the upper jaw are engaged with the shim.

The application provides a high-position traction extraoral arch appliance, which comprises an upper dental case, a traction mechanism and a headgear; the upper dental case is matched with upper teeth; the traction mechanism comprises an extraoral arch, a connecting piece and an adjusting mechanism; one end of the extraoral arch is installed on the upper dental case, the other end of the extraoral arch is connected with one end of the connecting piece, and the angle between the extraoral arch and the connecting piece can be adjusted through the adjusting mechanism; the headgear can be worn on the head, and the end of the connecting piece away from the extraoral arch is installed on the headgear; in the application, when the angle of the upper jaw changes, the angle between the extraoral arch and the connecting piece is adjusted through the adjusting mechanism, so as to adjust the angle of the headgear to the upper dental case, and the traction mechanism can be used to traction the upper jaw at the best angle; and the upper jaw and the upper dental case are used for correction at the same time, so that the correction effect can be greatly improved.

Surgical intermaxillary fixation device that reduces operating time, reduces the risk of the surgeon being accidentally injured by a sharp instrument, and reduces morbidity in the patient. It consists of a clamp or clip made of titanium, surgical steel or other biocompatible material, whose free ends are positioned in the interdental space. One end of the clamp is positioned in the maxillary interdental space and the other end in the mandibular interdental space, so that when it is installed it fixes or blocks the maxilla with the mandible so that the patient cannot move or open same, achieving the objective of intermaxillary fixation. This clamp or device is operated and manipulated by means of pincers to install it and remove it easily from the teeth.

The claimed solution relates to medicine, and more particularly to a medical product in the form of a gel for accelerating an orthodontic treatment and alleviating the pain thereof, as well as to a technical device for the use of said product, which makes it possible to significantly accelerate the movement of the teeth on the upper or lower jaw. Claimed is an electrode-bearing bite splint for performing procedures in the oral cavity, which consists of a shell having two conducting wires mounted in the front part thereof, said conducting wires having connectors and the open ends of said conducting wires being isolated from the alveolar mucosa by medical pads, wherein, during a procedure, the shell is filled with a gel for electrophoresis, consisting of an active chelating agent based on a solution of Trilon B, and a thickener in the form of sodium alginate.

Surgical guides (e.g., adjustable splints) that may be used for a temporal expansion and contraction of the palate during and / or after surgical operation on a palatal suture may include first and second tooth-engaging regions and an expandable palatal region including a linkage to allow controlled expansion / contraction of the palatal region. These apparatuses may be configured to allow measurement or estimation of the mobility of the palate (e.g., maxillary segments) and / or locking of the palate in a desired target width.