16 results about "Maxillary molar" patented technology

To provide a dental set for open bite treatment, which can easily depress molars in a short period of time without causing extrusion of front teeth when it is necessary to depress molars in open bite treatment, thereby enabling open bite treatment. [Solution] The dental set for open bite treatment has a plurality of brackets (201) attached to the patient's maxillary or mandibular teeth, an orthodontic wire (11) attached to these brackets, and an intermaxillary elastic (400). When indenting a patient's maxillary molars, the intermaxillary elastic is stretched by attaching the orthodontic wire to the bracket attached to the crown of the maxillary canine from above and stretching it, then hooking it from below to the bracket attached to the crown of the mandibular canine, and further hooking it onto a bondable tube (202) attached to the crown of the mandibular first molar. The same applies when indenting a patient's mandibular molars.

The invention relates to a maxillary molar distalization device which comprises an anchorage nail, a first fixing piece, a transverse palatal bar, a second fixing piece and an adjusting column, and the anchorage nail is used for integrally installing and fixing the device in the center of the maxillary palatal part of a patient. The first fixing piece is arranged on the anchorage nail, and the two sides of the transverse palatal bar are used for adhering teeth. The second fixing piece is arranged on the transverse palate bar, one end of the adjusting column is rotationally connected with the second fixing piece, the other end of the adjusting column is in threaded connection with the first fixing piece, and the distance between the first fixing piece and the second fixing piece is adjusted by rotating the adjusting column. Compared with the prior art, the maxillary molar distalization device provided by the invention has the advantages that the orthodontic effect can be realized only by placing the anchorage nail once, and the maxillary molar distalization device has the advantages of high operation convenience and higher orthodontic stability.

The invention discloses an orthodontic device capable of continuously converting masticatory force into anterior tooth adduction force and a using method thereof.The orthodontic device comprises an upper jaw part used for converting masticatory force in the vertical direction into horizontal tension for adduction of anterior teeth, and the upper jaw part is installed on the buccal side of an upper jaw molar area of a patient; one end of the traction accessory is mounted on the upper jaw part, and the other end of the traction accessory is connected to the anterior tooth appliance; and the lower jaw part is fixed on the cheek side of the lower jaw molar area. The masticatory force is used as sustainable output force, the masticatory pressure in the vertical direction is converted into adduction anterior tooth force in the horizontal direction, and meanwhile, molar anchorage protection can be enhanced.

A mandible displacement adjusting device includes an upper braces and a lower braces, wherein the upper braces and the lower braces have an upper teeth accommodation space and a lower teeth accommodation space, the upper teeth accommodation space and the lower teeth accommodation space are made based on the tooth shape, and fits on the upper and lower dental arches of the human body respectively, and the side walls of the upper braces and lower braces extend out a first positioning part and a second positioning part corresponding to the upper molar area and the lower molar area. When the user wear the upper braces and the lower braces, the first positioning part and the second positioning part would be driven to fit together, and maintain a movable displacement space, so that when the mandible of the human body is moved forward and fixed, it will not cause the mandible of the human body due to tightening, neither cause the discomfort at the condyle, while avoiding the back of the tongue slumping down and blocking the breathing passage.

The utility model discloses a fixed maxillary molar backward pushing device, which comprises a first belt ring, a palate surface belt ring, a second belt ring and an elastic force arm, the first belt ring, the palate surface belt ring, the second belt ring and the elastic force arm are arranged in bilateral symmetry and have the same structure, the palate surface belt ring is arranged on the adjacent surface of the first belt ring, and the palate surface belt ring is connected with the second belt ring through a connecting rod; the first bands on the left side and the right side are connected through a lower supporting rod, the palate surface bands on the left side and the right side are connected through an upper supporting rod, and the upper supporting rod and the lower supporting rod are hinged and fixed; a base support is arranged in the middle of the upper supporting rod, a connecting pipe is arranged in the middle of the lower supporting rod, and a left elastic force arm and a right elastic force arm are installed on the lower supporting rod in the connecting pipe. The device is of an integrated structure, has a common in-position path, is convenient to integrally install, is good in retention effect, and solves the problem that anchorage is slightly insufficient.

To provide an implant having a shape completely different from conventional implants, which is adapted to each implantation site. [Solution] An implant 100 used in place of a maxillary molar, which is formed by integrating three separate root equivalent portions 121, 122, 123 with one crown prosthesis portion 150 connected to the base end of the root equivalent portions, and has an abutment 170 attached. One or two vertical grooves 135 of a predetermined depth are formed on the inner surface of each root equivalent portion, extending from the tip of the root toward the base end of the root over a length that is approximately one-third of the length of each root equivalent portion, and on the surface area excluding a predetermined area on the inside of each root equivalent portion, horizontal grooves 111, 112, 131 of a predetermined depth are formed in a row at predetermined intervals from the underside of the cervical equivalent region formed on the abutment attachment side of the crown prosthesis toward the root tip of each root equivalent portion.

The utility model relates to the technical field of oral medicine, and particularly discloses a maxillary molar pushing distal appliance which comprises a U-shaped palatal bar, planting nails and an elastic traction piece, orthodontic bands used for being tightly sleeved and fixed on a first molar are fixedly connected to the two ends of the U-shaped palatal bar, the two sides of the middle of the U-shaped palatal bar are respectively wound by a circle to form traction rings, and the two sides of the middle of the U-shaped palatal bar are fixedly connected with the planting nails. The two implanting nails are implanted and fixed to the two sides of the upper jaw respectively and located between the first molar and the second molar, one end of the elastic traction piece is connected with the implanting nails, and the other end of the elastic traction piece is connected with the traction ring. The appliance for pushing the maxillary molar towards the far middle is stable in installation and not easy to fall off, and meanwhile, the position of a stress application point can be adjusted as required in the installation process, so that the traction correction effect is improved.

The invention discloses an orthodontic device for converting masticatory force into anterior tooth adduction force and a using method thereof.The orthodontic device comprises an upper jaw part used for converting masticatory force in the vertical direction into horizontal tension for adduction of anterior teeth, and the upper jaw part is installed on the cheek side of an upper jaw molar area of a patient; one end of the elastic traction accessory is mounted on the upper jaw part, and the other end of the elastic traction accessory is connected to the anterior tooth appliance; and the lower jaw part is fixed on the cheek side of the lower jaw molar area. The masticatory force is used as sustainable output force, the masticatory pressure in the vertical direction is converted into adduction anterior tooth force in the horizontal direction, and meanwhile, molar anchorage protection can be enhanced.

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.

To provide a method for manufacturing an implant having a completely different shape from conventional methods, in which the shape of the implant is adapted to each site where it is to be embedded. [Solution] This is a method for manufacturing an implant (100) used in place of a maxillary molar, which is formed by integrating three separate root equivalent portions (121, 122, 123) with one crown prosthesis portion (150) connected to the base end of the root equivalent portions, and has an abutment (170) attached. One or two vertical grooves (135) having a predetermined depth are formed on the inner surface of each root equivalent portion, extending from the tip of the root toward the base end of the root over approximately one-third of the length of each root equivalent portion, and horizontal grooves (111, 112, 131) of a predetermined depth are formed in a row at predetermined intervals on the surface area of ​​each root equivalent portion, from the underside of the cervical equivalent area formed on the abutment attachment side of the crown prosthesis toward the root tip of each root equivalent portion.

A jaw position correction device including a lateral tooth row arrangement unit, a first pressing force generating unit, a second pressing force generating unit, and a resultant force transmitting unit; (1) When worn, the lateral dental row placement section is positioned along the palate side of the maxillary dental row in the region corresponding in length to the canine tooth through the second premolar in the right and left maxillary dental row of the wearer (patient), (2) The first pressing force generating unit includes a pressing force transmitting unit and a pressing force source in the vicinity of the hard palate, and is connected to the right and left lateral tooth row arrangement units, (3) The second pressing force generating portion exists at the connection portion between the right and left lateral tooth row arrangement portion and the right and left first pressing force transmitting portion, and generates a force that tends to widen the angle formed by the connection portion toward the rear as the second pressing force, (4) The resultant force transmission part includes a bending redundant part connected to the distal end of the lateral tooth row arrangement part, and an attachment fixing part connected to the bending redundant part and having the function of fixing to the maxillary molar, (5) A jaw position correction device capable of transmitting the resultant force of the first and second pressing forces to the maxillary molars via the attachment and fixing part; It has been found that by using this method, early contact with cusp interference is generated in the maxillary molars, and as a result, the patient's jaw position is reset to a relaxed state, the facial appearance is improved, and maxillary protrusion can be alleviated.

The invention discloses a palate supporting type invisible expansion device and a manufacturing method thereof. The expansion device comprises a palate arch, and tooth sockets capable of being worn on maxillary molar teeth are integrally formed on the two sides of the palate arch; the palate arch comprises a palate part matched with the upper palate structure and a reinforcing part facing the central incisor, the two ends of the palate part are connected with the tooth socket respectively, a layer of grid structure formed by staggered distribution of a plurality of metal wires is arranged in the palate part, and the palate part is provided with at least one oval through hole distributed from front to back along the oral cavity; the upper surface of the reinforcing part is attached to the palate and abuts against the rear portion of the gingiva of the upper central incisor. According to the invention, the expansion effect, the wearing convenience and the comfort are improved.

A personalized healing abutment maker comprises a maker body, the maker body is provided with four groove groups, the shapes of the four groove groups are respectively matched with gum-penetrating contours of four tooth positions of an upper jaw molar, a lower jaw molar, a premolar and an anterior tooth, each groove group at least comprises one groove, and the bottom of each groove is provided with a through hole communicated with the bottom of the maker body. According to the utility model, a plurality of groove groups are arranged, and the proper healing abutment can be formed by pouring glue into the corresponding grooves according to the tooth position of the patient without teeth, so that the adaptation degree of the manufactured healing abutment and the tooth position of the patient without teeth is improved; the problems of unsmooth transition between the abutment and the prosthesis, easy formation of a black triangle, poor abutment stress and the like during later prosthesis making are solved, the physiological and aesthetic requirements of the dental crown are met, the operation is simple and convenient, the dental crown is in place once, a patient does not need to see a doctor for many times, and the time of the patient is saved.

An Angle's classification-based automatic recognition method, an electronic device, and a medium. The automatic recognition method comprises the following steps that are automatically executed by the electronic device: obtaining tooth image data to be recognized, wherein the tooth image data to be recognized comprises a two-dimensional photo and / or a three-dimensional dental model; and using a trained neural network model for use in Angle's classification to recognize the tooth image data to be recognized, and determining an Angle's classification result of a patient, wherein first-type tooth image data used by the trained neural network model for use in Angle's classification at least comprises a first maxillary molar and a first mandibular molar of the patient, and Angle's classification can be automatically performed on the jaw of the patient, so that the Angle's classification is more accurate and efficient, thereby further providing a more accurate and credible classification result for doctors or professionals.

This invention discloses a personalized maxillary and mandibular combined traction device for patients with skeletal Class II high-angle mandibular retrusion, belonging to the field of orthodontics. The device includes personalized maxillary / mandibular titanium plates, elastic traction components, and brackets. Two elastic traction components are included, one for intruding the maxillary molars and the other for tractioning the mandible forward. The maxillary and mandibular titanium plates are positioned at the center of jawbone resistance and are both 3D-printed integrated personalized designs. The elasticity of the traction components can be selected according to needs. This device simultaneously achieves mandibular advancement and maxillary molar intrusion, efficiently enabling early correction of skeletal Class II high-angle mandibular retrusion patients. It also avoids labial tipping of the lower anterior teeth and mesial tilting of the lower posterior teeth. The titanium plates conform to the jawbone, resulting in minimal intraoperative trauma, precise force control, and significantly improved treatment effectiveness and efficiency.

The invention discloses an orthodontic device for pushing maxillary molars backwards based on biological force conversion, which comprises two groups of orthodontic parts which are respectively arranged on two sides in an oral cavity; the orthodontic component comprises an upper jaw component used for converting a masticatory force in the vertical direction into a horizontal pull force capable of pushing an upper jaw molar to move backwards, and the upper jaw component is installed on the cheek side of an upper jaw molar area of a patient; and the lower jaw part is fixed on the cheek side of the lower jaw molar area. According to the invention, the chewing pressure in the vertical direction can be converted into the force for pushing the maxillary molars backwards in the horizontal direction.