23 results about "Maxillary Bones" patented technology

The utility model discloses a complete denture teaching aid. An upper jaw bone and a zygomatic arch are integrally connected, and the upper jaw bone and a lower jaw bone are oppositely arranged at intervals; the upper false tooth is detachably connected with the upper jawbone, and the lower false tooth is detachably connected with the lower jawbone; the two telescopic pieces are fixedly connected to the side portion of the zygomatic arch and the side portion of the mandible respectively, and the fixed ends of the two telescopic pieces are connected to the periphery of the outer side of the zygomatic arch and the top of the outer side of the mandible respectively. The adjusting parts are arranged among the corresponding telescopic parts, the zygomatic arch and the mandible in a suspended mode, and the adjusting parts are fixedly connected with the movable ends of the corresponding telescopic parts respectively. The upper jawbone is integrally connected with the zygomatic arch and is arranged opposite to the lower jawbone at an interval, and the upper jawbone and the lower jawbone in a real oral cavity are simulated. The upper false tooth and the lower false tooth are detachably connected to the upper jawbone and the lower jawbone respectively and are used for simulating and replacing missing teeth. The stretching length and angle of the telescopic piece are controlled through the adjusting piece, and the relative distance and position relation between the maxilla and the mandible are adjusted, so that the alignment process of the maxilla and the mandible is displayed in real time.

According to the design and manufacturing method of the orthodontic postoperative intermaxillary traction device based on the invisible orthodontic device, CT scanning is conducted on a patient, craniomaxillofacial and tooth three-dimensional data are collected, and preparation is made for obtaining three-dimensional virtual tooth data of the patient through manufacturing of an anhydrite tooth model; data of a patient are imported into cranio-maxillofacial surgical operation planning software, a cranio-jaw virtual model of the patient is established, a manufactured anhydrite tooth model is subjected to three-dimensional scanning, dentition data are obtained, a maxillary tooth bone section is moved to a target position through a simulated operation on the virtual cranio-jaw model, and the patient is subjected to cranio-maxillofacial surgical operation planning software. And then determining a target position of a mandibular tooth bone section based on a final occlusion relationship, importing dentition data of the patient into three-dimensional virtual design software, performing Boolean operation, and manufacturing a traction device by using a three-dimensional printing technology. According to the device, assistance of methods such as a dental arch splint and an intermaxillary traction nail is not needed, intermaxillary elastic traction can be carried out after an invisible orthodontic patient completes a orthodontic operation, and it is ensured that the occlusion relation after the orthodontic operation meets the requirement.

A maxilla holder includes a base plate and a connecting member. One end of the connecting member is connected with the base plate which extends along a pre-designed occlusal plane while the other end of the connecting member includes at least two supporting portions. With the supporting portions abutting against the cranium, the base plate is positioned so that the maxilla is located in a pre-planned position once it is moved onto the base plate.

The method for creating a digital 3D model of a patient's dentition according to the present invention comprises, in a computing unit, generating a digital 3D model of a plurality of dentition variations, each of which comprises a combination of a digital 3D model of the patient's upper jaw and a digital 3D model of the patient's lower jaw, the plurality of dentition variations differing from one another in the relative positioning of the upper and lower jaws, respectively: - a digital 3D model of the patient's maxilla is combined with a digital 3D model of the mandible such that the maxilla and mandible rest on top of each other at several contact points without any spatial overlap of parts of the maxilla and mandible; - The contact surfaces between the upper and lower jaws are determined, This results in an optimized denture variation being selected for the 3D model of the denture, taking into account the contact surfaces.

The invention discloses a maxillary bone reduction guide plate for orthognathic surgery secondary operation, and relates to the technical field of oral and maxillofacial surgery medical auxiliary instruments, the maxillary bone reduction guide plate comprises a left side guide plate and a right side guide plate, the left side guide plate and the right side guide plate are configured to be capable of being attached to bony structure surfaces on the two sides of a patient's maxillary bone pear-shaped hole respectively, the left guide plate and the right guide plate are each provided with at least one nail hole used for being fixed to the bone surface. The left side guide plate and the right side guide plate are attached to the bone walls of the maxillary frontal process and the maxillary alveolar process to achieve in-place and fixation, so that resetting of the maxillary osteotomy block is guided, the structure is simple, use is convenient, the accuracy and reliability of the secondary orthognathic operation are effectively improved, and pain of a patient is effectively relieved.

A method for creating a digital 3D model of a patient's dentition, according to the invention, provides that in a computing unit for a plurality of dentition variants, each comprising a combination of a digital 3D model of the upper jaw and a digital 3D model of the lower jaw of the patient, which differ from each other in the relative positioning of the upper and lower jaws, respectively:the digital 3D model of the upper jaw is combined with the digital 3D model of the patient's lower jaw in such a way that the upper and lower jaws rest on each other at a number of contact points without any spatial overlap of parts of the upper and lower jaws, andthe contact surface between the upper and lower jaw is determined, whereby an optimized denture variant is selected as a 3D model of the denture, taking into account the contact surface.

This invention discloses a teaching device for manual reduction of temporomandibular joint dislocation, comprising a base plate on which a lifting and adjusting assembly is mounted. A skull model is mounted on top of the lifting and adjusting assembly. The skull model has a temporalis muscle spring assembly between the temporal bone and coronoid process, a masseter muscle spring assembly between the zygomatic arch and the lateral surface of the lower border of the mandibular angle, a medial pterygoid muscle spring assembly between the posteromedial aspect of the maxillary tuberosity and the medial surface of the lower border of the mandibular angle, and a lateral pterygoid muscle spring assembly between the articular pterygoid fossa and the lateral pterygoid plate at the condylar neck. In this invention, the skull model can rotate on top of the lifting and adjusting assembly, allowing the device to visually display the temporomandibular joint and the mandibular elevating muscles closely related to joint dislocation, simulating the movement of muscles inside the oral cavity, thus realistically simulating the force resistance against the mandibular elevating muscles during temporomandibular joint reduction. Furthermore, the device allows for angle adjustment to accommodate students in different positions.

In CT visualization software, zones of the right and left temporomandibular joints (TMJs) are visualized sequentially. In a frontal plane, each of the condylar processes of the TMJs are delimited into sections. In a sagittal plane, separate 3D contours of the fossae and the condyles of the TMJs are created. The contours of the condyles are combined with a 3D model of the mandibular teeth, and a 3D model of the mandible with the teeth and the condylar processes is obtained. The contours of the fossae are combined with a 3D model of the maxillary teeth, and a 3D model of the maxilla with the teeth and the contours of the glenoid fossae is obtained. The 3D scene objects obtained are distributed according to side and identification code, and precise tracking of the movement of the condyles and the fossae of the TMJs during movement of the mandible is provided.

The invention discloses a maxillary osteotomy positioning and fixing suite, and relates to the technical field of oral maxillofacial surgery orthognathic surgery, the maxillary osteotomy positioning and fixing suite comprises two osteotomy guide plates, an occlusal plate and a plurality of titanium battens, one end of each osteotomy guide plate is used for being clamped with a piriform nest, the other end of each osteotomy guide plate is used for being clamped with a zygomatic alveolar ridge, and the osteotomy guide plates are provided with a plurality of first nail holes; the first nail holes correspond to reserved nail holes of the maxillary bone so that the titanium nails can penetrate through the first nail holes and enter the reserved nail holes to fix the osteotomy guide plate in an operation area, the osteotomy guide plate is provided with an osteotomy groove, and the osteotomy groove is used for osteotomy operation to complete osteotomy and dissection of the maxillary bone; the biteplate is placed between the occlusal surfaces of the upper jaw and the lower jaw so as to guide the primary restoration of the osteotomy block; a plurality of second nail holes are formed in the titanium batten, and the second nail holes correspond to the reserved nail holes so that the titanium nails can penetrate through the second nail holes and enter the reserved nail holes to complete final reduction of the maxilla and fixation of the osteotomy block. The device is simple in structure and convenient to use, effectively reduces operation time and injury, and effectively improves operation efficiency.

The application discloses a medicine injection method for killing camel head fly larvae parasitizing in the nasal cavity of a bactrian camel. A pair of non-bony structures similar to a triangle and the size of a thumb are arranged at the joint of nasal bone, maxillary bone and frontal bone. The pair of non-bony structures are at the same horizontal level with the eye socket of the bactrian camel, are located at the intersection of the inner corner of the eye and the upper edge of the eye socket, and are away from the eye socket by 4-5 cm. After a syringe is vertically inserted into 2-3 cm at the site, the needle of the syringe can reach the medial part of the concha nasalis. After the site is inserted into 2.5-3 cm in the clockwise direction and is inclined by 45 degrees, the needle can reach the lateral part of the concha nasalis. The medicine injection method can directly inject the insect killing medicine to the parasitizing position of the first instar larvae, and the purpose of killing the first instar larvae is achieved. The medicine injection method provides a new method for killing the first instar larvae in the overwintering period, and can reduce the economic loss of the camel raising industry caused by the nasal fly maggot disease.

A facemask and accessories which overcome the adverse effects and limitations of current designs by moving the maxilla and mandible in forward direction, which assists in correcting maxillary and mandibular skeletal and dentoalveolar deficiency and help expand the upper airway by advancing the mandible. This is accomplished by a design that is supported only by forehead and produces forces in front of maxilla and mandible. The extra-oral facebow design is characterized by providing two independent force adjustments, one above the forehead and the other one in front of the face by attachments to the upper and lower jaw bones and teeth. In particular, the two independent adjustments are provided by a fully adjustable forehead pad and bilateral adjustable bows on opposite sides of the facebow's extra-oral frame to provide protracting forces.

A device for measuring parameters associated with concussions due to impacts to the head of a person using a mouthpiece with a sensor that is configured to contact one or more bones of a person's face, such as the maxilla bone. The device may include a number of inflatable air pockets to aid in retaining the position of the sensor. The device may further include a sensor that contacts the exterior of a person's cranium and a communication module for transmitting the sensor readings. The device may be hinged in such a way that users may still easily talk and breathe.

1. The name of the design product: Absorbable bone plate. 2. The use of the design product: Used for the connection and fixation of the fracture of craniofacial and other non-weight-bearing parts of the body (such as maxilla, orbital bone, nasal bone, zygomatic bone, zygomatic arch) and other parts. 3. The design points of the design product: The combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view.

The present invention relates to a palatal expander equipped with a molar distalization means for expansion of the maxillary bone and distal retrusion of the maxillary molars. In particular, the present invention is configured such that molar distal retrusion is possible during a maintenance period of three to four months after expansion of the maxillary bone, the distalization means can be easily mounted on the palatal expander through assembly without silver soldering or laser welding, and same can be easily connected after adjustment according to the height differences of the molars of patients.

An implant (X) for supporting a maxillary denture (Z) on the skull bone (S), wherein the implant (X) has a receiving section (ZA) for receiving the maxillary denture (Z) and several attachment sections (B1, B2, B3, B4), wherein the attachment sections (B1, B2, B3, B4) are connected to the receiving section (ZA) and have at least one through-hole (DL) for receiving a fixing screw (BT), wherein the attachment sections (B1, B2, B3, B4) are formed by at least a first attachment section (B1), a second attachment section (B2) and a third attachment section (B3), wherein the first attachment section (B1) is configured to anchor the implant (X) to the lateral skull base (S1), and wherein the second and third attachment sections (B2, B3) are configured to anchor the implant (X) to each of the following three skull bone sections (S2, S3, S4). is: at the pterygoid process (S2),at the zygomatic bone (S3), and at the maxilla (S4).

An extraoral orthopedic device (1) for the direct protraction of the maxilla and the direct or indirect protraction of the mandible, comprising: two metallic girders, one mouth girder (4), which is coupled through traction means (5) with an intraoral mechanism (6) and one connecting girder (3), which couples the said mouth girder (4) with a skeletal support wreath (2), placed and supported on the neurocranium (9) by means of its precision to the anatomy of it and the two elastic fixation straps (7) passing around the shoulders and through the axillae (8), wherein a) said skeletal support wreath (2), individually designed using the 3D digital imprint of a person's head and a computer, comprises first means of adjustment and support (12, 13, 14, 15) in order to ensure the optimal placement of the said connecting girder (3) and first means of support (17) aiming at its fixation to the neurocranium (9) by means of the straps (7), b) the said mouth girder (4) comprises first means of adjustment (25) and support (21, 22, 24) aiming at its ergonomic placement into the said connecting girder (3), thus ensuring optimal direction of the traction means (5) individualized to each person.

The invention relates to a maxilla repositioning implant (1) for three-dimensional precise alignment of a maxilla displacing portion (5) relative to a remaining maxilla portion (3) that is fixed to the skull, wherein the maxilla repositioning implant (1) comprises a base (2), which has at least one plate (7) in which screw holes (10) are provided, wherein a portion of the material of the plate (7) defines, as a rim (11), a respective screw hole (10) that is provided for receiving a bone screw (17) in order to ensure fastening, via the bone screw (17) to be inserted into the respective screw hole (10), to the remaining maxilla portion (3) that is fixed to the skull, wherein the maxilla repositioning implant (1) also comprises a connection portion (4), which is spaced apart from the base (2) by connecting bridges (6), wherein the connection portion (4) comprises at least one plate (7) in which screw holes (10) are provided, and wherein a portion of the material of this plate (7) defines, as a rim (11), a respective screw hole (10) in order to ensure fastening, via a bone screw (17) to be inserted into the respective screw hole (10), to the maxilla displacing portion (5), wherein two connecting bridges (6) extend from the plate (7) of the connection portion (4) to the edge (11) of a screw hole (10) in the plate (7) of the base (2).

The present invention is oral device that inhibits mastication and ingestion of solid food while minimizing intrusiveness and discomfort in other oral activities. This device is ideal for individuals following an all-liquid diet without relying on willpower alone. The oral device allows a full range of motion of the jaw and the wearer keeps the ability to open and close the mouth, allowing all oral functions other than chewing and swallowing solid food. In various embodiments of the invention, the oral device comprises a set of retainers worn over teeth or retainer bars bonded to, or integrated as part of the retainers. A set of flexible mastication barriers coupled to the retainers or retainer bars and extending from mandible to the maxilla on the lingual side of the mouth inhibit the movement of solid food to the occlusal surfaces of the posterior teeth for chewing. An artificial intelligence platform is implemented to improve fabrication of the oral device and predict and eliminate undercuts in the retainers or retainer bars.

The invention relates to a maxilla repositioning implant (1) for three-dimensional precise alignment of a maxilla displacing portion (5) relative to a remaining maxilla portion (3) that is fixed to the skull, wherein the maxilla repositioning implant (1) comprises a base (2), which has at least one plate (7) in which screw holes (10) are provided, wherein a portion of the material of the plate (7) defines, as a rim (11), a respective screw hole (10) that is provided for receiving a bone screw (17) in order to ensure fastening, via the bone screw (17) to be inserted into the respective screw hole (10), to the remaining maxilla portion (3) that is fixed to the skull, wherein the maxilla repositioning implant (1) also comprises a connection portion (4), which is spaced apart from the base (2) by connecting bridges (6), wherein the connection portion (4) comprises at least one plate (7) in which screw holes (10) are provided, and wherein a portion of the material of this plate (7) defines, as a rim (11), a respective screw hole (10) in order to ensure fastening, via a bone screw (17) to be inserted into the respective screw hole (10), to the maxilla displacing portion (5), wherein two plates (7) of the base (2) are connected to each other via a retaining bracket (8, 9).

The present invention is oral device that inhibits mastication and ingestion of solid food while minimizing intrusiveness and discomfort in other oral activities. This device is ideal for individuals following an all-liquid diet without relying on willpower alone. The oral device allows a full range of motion of the jaw and the wearer keeps the ability to open and close the mouth, allowing all oral functions other than chewing and swallowing solid food. In various embodiments of the invention, the oral device comprises a set of retainers worn over teeth or retainer bars bonded to, or integrated as part of the retainers. A set of flexible mastication barriers coupled to the retainers or retainer bars and extending from mandible to the maxilla on the lingual side of the mouth inhibit the movement of solid food to the occlusal surfaces of the posterior teeth for chewing. An artificial intelligence platform is implemented to improve fabrication of the oral device and predict and eliminate undercuts in the retainers or retainer bars.

A method of changing a midfacial complex involving a palate, a maxilla, and a nasal cavity, may comprise a step of making a piezocision along the rostral edge of the nasal cavity via notches in a piezocorticotomy guide coupled to the maxilla and extending the piezocision antero-posteriorly from a distal outline of an incisive foramen to a PNS landmark of the palate located at the most distal ridge of the maxillary bones.

The present disclosure relates to a support element (1) for supporting at least a portion (2a) of a mandible (2) or a maxilla of a subject. The support element (1) comprises a body (3) and at least one tie. The body (3) extends apically to cover a cervical line of the dentition. The body (3) is defined with an inner surface (4a) and a plurality of holes (5). The inner surface (4a) is contoured in the shape of an occlusal morphology of the dentition. The plurality of holes (5) is configured to permit a flow of a cleaning fluid towards the inner surface (4a). The at least one tie is receivable within the plurality of holes (5) and tie configured to secure the support element (1) with the at least the portion (2a).

A system and method of detecting Electrophysiological events such as Interictal Epileptiform Discharge (IED) events, or other pathological and physiological electrophysiological events, in a human subject by at least one processor may include, for example: placing at least one first electroencephalogram (EEG) electrode over a zygomatic bone or a maxilla of the subject, directly below the subject's orbit in the subject's inferior direction; receiving a first EEG signal from the at least one first EEG electrode; processing the first EEG signal, to obtain one or more first EEG data elements; and inferring at least one machine-learning (ML) based model on the one or more first EEG data elements, to predict occurrence of at least one IED event in the subject.