65 results about "Superior Maxillary Bone" patented technology

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 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.

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.

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 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.

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.

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.

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 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.

Surgical instrument for maxillary reduction

The application discloses a detachable maxillary skeletal expander and a design method thereof. The maxillary skeletal expander comprises a pair of mirror image arranged and connected expander units. Each expander unit comprises an expander body, a band for fixing to a patient's tooth crown, and a connecting rod detachably connected to the expander body and the band. The expander body of each expander unit is connected and used for fixing to the patient's upper palate by a micro-implant. The detachable assembly of the application adopts a "fixing part-sleeve-screw" structure. In the maintenance stage after the completion of the expander treatment, the band can be easily detached by rotating out the screw, the operation process is greatly simplified, the chair-side time is significantly shortened, the clinical work efficiency is improved, the grinding operation is avoided, the vibration and noise interference is eliminated, the risk of soft tissue injury is reduced, and the comfort and safety of the patient in the treatment process are effectively improved.

Disclosed herein is a method for acquiring a dental object of a patient with an object volume, in particular at least a part of a skull, an upper jaw and / or a lower jaw. To do so, a plurality of segment volume ranges are defined in the object volume, where the segment volume ranges overlap at most partially and directions of the segment volume ranges are not parallel to one another. The image data of the segment volume ranges is recorded by an MRI machine within a measuring volume of the MRI machine. A two-dimensional composite image is generated from the image data of the individual segment volume ranges by projecting the image data onto a target plane. The target plane is disposed parallel to a defined midsagittal plane of the skull or corresponds to the midsagittal plane, where a first segment volume range at least partially includes the midsagittal plane of the skull.

The application discloses a model demonstration teaching aid with an adjusting function for orthodontic and orthognathic head bones, which comprises a skull, the front surface of the skull is hingedly connected with a maxilla, the top end of the maxilla is abutted with a first demonstration mechanism, the bottom end of the maxilla is slidably connected with an upper dental alveolar bone, the inside of the skull is fixedly installed with a connecting mechanism, and the connecting mechanism comprises two left and right symmetrical mandibular branches. The demonstration teaching aid can dynamically demonstrate the process of orthodontic and orthognathic treatment, intuitively present the three-dimensional space changes of the jaw bones and the dentition, help students establish a three-dimensional anatomical cognition, deepen the understanding of the treatment mechanism, support flexible combination of different deformity states through modular design, adapt to various clinical case teaching needs, meanwhile, the demonstration teaching aid can customize the treatment scheme according to the individual conditions of patients, convert the abstract operation process into a concrete dynamic display, significantly improve the efficiency and accuracy of the doctor-patient communication, reduce the understanding deviation of the patients, and enhance the treatment compliance.

An implant (X) for supporting an upper-jaw dental prosthesis (Z) on the cranial bone (S), wherein the implant (X) has a receiving portion (ZA) for receiving the upper-jaw dental prosthesis (Z), and also a plurality of fastening portions (B1, B2, B3, B4), wherein the fastening portions (B1, B2, B3, B4) are connected to the receiving portion (ZA) and have at least one through-hole (DL) for receiving a fastening screw (BT), wherein the fastening portions (B1, B2, B3, B4) are formed at least by a first fastening portion (B1), a second fastening portion (B2) and a third fastening portion (B3), wherein the first fastening portion (B1) is designed to anchor the implant (X) on the lateral cranial base (S1), and wherein the second and third fastening portions (B2, B3) are designed to anchor the implant (X) on one of the following three cranial bone portions (S2, S3, S4): the pterygoid process (S2), the zygomatic bone (S3), and the maxilla (S4).

The unilateral alveolar split newborn maxilla orthopedic device comprises a palate plate and a retention stabilizing accessory, buccal side stretching accessories are connected to the outer portions of the left side edge and the right side edge of the palate plate, the material of the buccal side stretching accessories is softer than that of the palate plate, and the buccal side stretching accessories and the palate plate are of an integrated structure; the cheek side stretching accessory upwards protrudes out of the outer parts of the left and right side edges of the palate plate. The cheek side distraction accessory can generate an outward distraction effect on gingival tissues at the maxillary vestibular sulcus part, promote formation of new bones at the cheek side of maxillary alveolar bones, realize accurate quantitative controllable movement of alveolar bone sections, particularly effectively increase the transverse width, improve the comfort of the distraction effect due to the design of the edge buffer soft lining, and improve the safety of the distraction of the maxillary alveolar bones. The treatment effect is improved.

The utility model provides an appliance for correcting Angler class III malocclusion. Comprising an upper jaw casting type expansion device, a lower jaw casting type lip shield and an elastic connecting piece, and the upper jaw casting type expansion device comprises a spiral expander, a front palatal bar, a rear palatal bar, a palatal side connecting rod, an anterior tooth separated palatal arch, a cheek side traction hook, an upper jaw first premolar casting belt ring and an upper jaw first molar casting belt ring; a cheek tube is arranged on the upper jaw first molar casting belt ring; the lower jaw casting type lip shield comprises a labial arch, a lingual arch and a lower jaw first molar casting belt ring, and a lip shield traction hook is arranged at the front part of the labial arch; the elastic rubber ring is used for traction between the cheek tube and the lip shield traction hook of the appliance, and is matched with the rapid expansion and contraction of the maxillary to achieve the effect of correcting III-type malocclusion, so that a patient can wear the appliance all day long, the development of the maxillary bone is promoted, the correction period is accelerated, and the appliance does not need to depend on a mask tractor outside the mouth.

The present invention relates to an active pre-surgical orthopedic device for the treatment of neonates with cleft lip and / or palate. The Ávalos Active Obturator Plate (AOP) comprises an acrylic body segmented into anterior and posterior portions, functionally joined by cuts directed toward the incisive foramen and activated by modified Coffin springs that generate constant orthopedic forces to approximate the maxillary segments. The device also incorporates one or more extraoral stems with a groove for the placement of traction elastics, which complement the maxillary movement produced by the internal springs. Furthermore, it integrates anatomical nasal conformers designed to exert three-dimensional shaping on the vertex, columella, and alar cartilages, improving nasal symmetry prior to primary surgery.The POAA provides continuous activation, three-dimensional maxillary-nasal control, progressive reduction of the alveolar cleft, and rigid nasal shaping, without requiring extraoral adhesives or surgical fixation. The device can be manufactured using traditional acrylic casting or digital CAD / CAM techniques and 3D printing, meeting the requirements of novelty, inventive step, and industrial application.

The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a kind of extraoral anterior traction during dentition period. Including cap body and rigid brim, still including jaw bag, the jaw bag two sides are movably connected with rigid brim by telescopic elastic band, the jaw bag two sides are also connected or bypass patient neck interconnect by elastic band with the rear end of cap body. The middle of cap body is also connected with maxilla traction belt, and multiple fixed columns are distributed on the maxilla traction belt. The two ends of oral appliance are connected with the fixed column on maxilla traction belt by rubber band. The lower end of maxilla traction belt can also be connected with the elastic band, so that the whole equipment structure is more compact. The utility model not only helps children patients to reduce the frequency and degree of mouth opening, but also produces a forward and upward traction on the mandible, changes the growth direction of the mandible growing backward and downward due to mouth opening, and tends to be normal.

1. Name of the product in this design: One-piece ceramic implant. 2. Purpose of this design: To provide support and fixation for the restoration of missing teeth by surgically implanting it into the maxilla or mandible, for the restoration of damaged teeth, and to replace missing teeth. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model provides a mandibular push molar distalization device suitable for bony class III malocclusion, which comprises a tail end guide rail, a front end guide rail, a push rod and a sleeve type push spring, the tail end guide rail is fixed on the last tooth needing to be moved, the front end guide rail is fixed on canine teeth or first premolar teeth at the turning position of a dentition dental arch, and the push rod is fixed on the sleeve type push spring. A push rod is arranged between the tail end guide rail and the front end guide rail in a penetrating mode, a traction hook is arranged at the end, penetrating through the front end guide rail, of the push rod, a tail end blocking ball is arranged at the other end, penetrating through the tail end guide rail, of the push rod, a sleeve type push spring is movably connected between the tail end guide rail and the front end guide rail in a sleeved mode, and a free buckle for blocking and limiting the sleeve type push spring is arranged on the push rod. The traction hook is connected with a jaw anchorage component such as an anchorage nail through a rubber band. The mandibular molars can be pushed to the distal direction, the mandibular molars can be pushed to the distal direction, meanwhile, the mandibular molars can assist in promoting the development of the maxilla and inhibiting the development of the mandible for other clinical bony III-type malocclusion orthotic devices, the structure is scientific and reasonable, the mandibular molars are simple and practical, the mechanical analysis is simple and clear, the use comfort of a patient is high, and the orthotic effect is good.

A dental implant identification system is provided that aids a dental professional in identifying the type of dental implant that has been surgically placed into maxillary or mandibular bone of a patient who requires restorative dental procedures. Additionally, a dental implant identification system is provided that aids a dental professional in identifying the forensic remains of victims due to various factors and circumstances.

The invention discloses an intraoral impression preparation device for maxillary defect patients and an application method thereof, and relates to the technical field of oral medical treatment, the intraoral impression preparation device comprises a remaining natural tooth region tray and a maxillary defect region tray; a positioning bulge is arranged on the polished surface of the remaining natural tooth area tray; a semi-cylindrical extension device is arranged on the polished surface of the jaw defect area tray, and a positioning groove matched with the positioning bulge is formed in the tissue surface of the extension device, so that the jaw defect area tray can be detachably spliced with the remaining natural tooth area tray through the matching of the positioning bulge and the positioning groove; a cylindrical groove matrix is arranged on the tissue surface of the jaw defect area tray according to the form of a defect cavity; cylindrical bulges matched with the cylindrical groove matrix are arranged on the polished surface of the at least one splicing module; according to the method, efficient and accurate registration of multiple data is realized based on the positioning marks, manual intervention errors are avoided, and the overall modeling efficiency and reliability are improved.

A non-crestal dental implant system includes at least one dental implant having a proximal end and a distal end; the implant configured to be inserted by way of a non-crestal approach into a mandible or maxilla from a specific zone originating in either the buccal side or lingual side of a mandible or either the buccal side or palatal side of a maxilla towards a termination point in a specific zone in a mandible or maxilla via an omnidirectional pathway which does not go through or contact the crest of the ridge, thereby utilizing otherwise non-usable bone to secure at least one dental implant; and at least one retentive element having a proximal end for attaching to the dental implant and a distal end configured for the attachment of a dental prosthesis. The system includes a dental implant placement tool for placing a non-crestal dental implant

The utility model discloses a kind of zygomatic implants, belong to dental implant technical field, including zygomatic end implant, the zygomatic end implant is connected with maxillary end implant by connecting portion, zygomatic end implant outside is equipped with first threaded portion, maxillary end implant outside is equipped with second threaded portion. The first threaded portion thread diameter is less than second threaded portion thread diameter. The connecting portion is the rod body with smooth surface. By the segmented design of zygomatic end implant, connecting portion and maxillary end implant, the combination of different thread structures and smooth surface, overcome the deficiencies of zygomatic implant in stability, cleaning difficulty and postoperative complications etc. in prior art, improve the stability and antibacterial ability of implant.

The invention discloses a digital jaw position relation determination method based on a Gothic arch, relates to the technical field of oral implant repair, and aims to solve the problem of how to accurately position the jaw position relation of a final dentition patient. The method comprises the following steps: firstly, determining a central relation position of a patient by adopting a Gothic arch tracing method to obtain a horizontal jaw position relation and an arrow vertex position; then, respectively acquiring facial three-dimensional images of the patient wearing a Gothic arch and a resting jaw to establish a three-dimensional coordinate system with facial information of the patient, and constructing a maxillary and mandibular digital model according to the maxillary and mandibular information and matching the model into the three-dimensional coordinate system; finally, the cycloid is used for driving the mandible model to rotate around the hinge shaft relative to the maxilla model so as to simulate mandible physiological movement to obtain a vertical jaw position relation, and therefore accurate positioning of the jaw position relation of the final dentition patient is completed. According to the method, mandibular movement is digitally simulated, personal errors are reduced, and the determined jaw position relation is more accurate.

An exemplary maxillary incision guide for a maxilla having a palatial region within a palatial perimeter may comprise a retainer for retaining the guide to the maxilla at a point outside the palatial perimeter, a base suspended from the retainer by a plurality of posts extending from the retainer across the palatial perimeter. An exemplary base of an exemplary maxillary incision guide may be configured to be in contact with a portion of the palatial region and provide access to the same through a plurality of slots formed through the thickness of the base.