36 results about "Premolar tooth" patented technology

The invention belongs to the technical field of stomatology, and particularly relates to an upper jaw fixing expansion appliance which comprises a spiral expansion device, a plastic base, a connecting rod, a retention device and a dental retraction traction hook. The spiral expander is positioned in the center of the appliance, and the plastic base plate is two parts which are separated from each other in the center and connected with the spiral expander and covers the hard palate part of the upper jaw. The retention device is composed of a milk molar or premolar casting continuous belt ring and a first molar independent casting belt ring. And the left and right dental retraction traction hooks are positioned in the plastic base and are used for retracting and pressing the first molar of the upper jaw of buccal inclination after the expansion of the arch. The appliance disclosed by the invention is wide in clinical application range, and is suitable for light and moderate teenager patients with lateral maxillary development insufficiency and maxillary posterior tooth buccal inclination compensation. According to the invention, a good bony expansion effect can be realized for patients in a replacement dentition stage or a permanent dentition early stage and patients in rapid maxillary expansion, and excessive buccal inclination and movement of teeth are reduced.

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 utility model relates to the technical field of tooth implantation, in particular to an artificial ceramic implant for a premolar, which comprises an implant root implanted into a gum and an abutment connected with a dental crown, the implant root part comprises a smooth column head part, a threaded part and an implant neck part which are sequentially adjacent to one another from bottom to top; wherein the bottom end of the smooth column head is hemispherical; the upper surface of the neck part of the implant neck part is quadrilateral, the lower surface of the neck part is circular, and the side wall of the neck part is arc-shaped; and the base station is arranged on the upper surface of the neck part. The structure is implanted in a knock-in mode, the implanting operation time is short, the operation difficulty is low, postoperative recovery is fast, and the problems of intraoperative bleeding and postoperative swelling can be solved.

The utility model discloses a molar mesial movement auxiliary device which comprises a main arch wire, a plurality of orthodontic brackets, an auxiliary arch wire, a ligature wire and an anchorage nail, the main arch wire penetrates through the orthodontic brackets and is fixed with the orthodontic brackets, two question mark hooks of the auxiliary arch wire are sleeved on the main arch wire, and the ligature wire is connected with the anchorage nail. The auxiliary arch wire is further provided with two small circles formed by bending, the small circle in the distal direction is rigidly connected to an anchorage nail planted on the alveolar bone through a fixing ligature wire, and the other small circle is free. According to the utility model, a stable rectangular structure can be formed, after force application, interference caused by lip and cheek movement or feeding is avoided, displacement is avoided, foreign body sensation is reduced, the bad effect of distal movement of anterior teeth and premolars can be avoided, friction force of tooth movement is not increased, and meanwhile, the structure is simple and convenient. And when the molars move forwards, the lip inclination acting force on the anterior teeth is also reduced.

The invention provides a 3D printing dental model detection method to improve the measurement accuracy of a dental model, and relates to the field of 3D printing model detection. The 3D printing dental model detection method comprises the following steps: respectively adding a first measurement positioning column and a second measurement positioning column at post-molar areas on two sides of a dental three-dimensional model by utilizing 3D printing processing software, and respectively adding a third measurement positioning column and a fourth measurement positioning column at pre-molar areas on two sides of the dental three-dimensional model, adding a fifth measurement positioning column in the anterior tooth area of the dental three-dimensional model; printing a dental model; performing measurement; and calculating the X axial precision SX, the Y axial precision SY, the front end external expansion deformation rate R < front > and the front end external expansion deformation rate R < rear > of the dental model. According to the invention, the printing precision condition of the dental model can be better monitored.

This invention relates to a mandibular premolar guiding device for reducing labial inclination of the lower anterior teeth. The device includes an upper molar band, a lower molar band, a premolar guide, a push plate, and an implant. The upper and lower molar bands are fixed to the upper and lower molars, respectively. The premolar guide is located on the buccal side of the upper molar band, and the push plate is fixed on the buccal side of the lower molar band. The front end of the premolar guide bends downward to form a pusher portion. During occlusion, the pusher portion pushes against the push plate to achieve mandibular premolar guidance. The buccal side of the lower molar band also has a buccal tube. The lower incisor has a bracket. The buccal tube and the bracket are connected by a lower archwire. The lower archwire has a lower traction hook corresponding to the lower incisor. The implant is located between the lower molar and the lower premolar. The implant and the lower traction hook are connected by a traction member. This device can simultaneously achieve mandibular premolar guidance and reduce labial inclination of the lower anterior teeth.

This invention discloses a posterior implant-supported anterior tooth intrusion aid, its force application method, and its application. The anterior tooth intrusion aid includes two implants and an intrusion arch. The two implants correspond to the spaces between the roots of the second premolar and the first molar on the left and right buccal sides, respectively. The left and right ends of the intrusion arch are rotatably connected to the left and right implants, respectively. The intrusion arch is arch-shaped, with its front end corresponding to the anterior gingival side. This posterior implant-supported anterior tooth intrusion aid uses posterior implants as anchorage to provide support force for anterior tooth intrusion. During the force application process, it has minimal additional impact on the posterior teeth, generating only a simple anterior tooth intrusion force. The intrusion effect is stable and controllable, reducing side effects. Furthermore, due to similar mechanical properties, it can be used to replace anterior anchorage screws for anterior tooth intrusion, avoiding the damage caused by additional anchorage screws.

An orthodontic appliance for partial distalization of a posterior mandibular region is disclosed. The appliance includes a mesial element having a mesial base surface configured for attachment to a premolar or canine, a protrusion for connecting to a retraction element, and an arm. The arm includes a lateral pivot at a distal end of the arm. The appliance further includes a distal element having a distal base configured for attachment to a molar and a distal cap, the lateral pivot being disposed between the distal base and the distal cap. A method of assembling the orthodontic appliance is also provided.

The present invention discloses a method for identifying feature points based on the tooth's own coordinate system, and relates to the field of dental orthodontics in a digital oral cavity. The input conditions of the method are the conversion matrix of the tooth model and the coordinate system. All teeth have an axis point and a gingival point. For different teeth, the central incisor and the lateral incisor also have an incisal angle point and an incisal ridge midpoint, the canine also has a cusp point, the premolar also has two cusps in front and behind and a nest point, and the molar also has four cusps and a nest point. The present invention can automatically identify the feature points of different teeth based on the tooth's conversion coordinate system, greatly improving the efficiency of feature point recognition and reducing errors caused by personal subjective factors.

The invention discloses an oral orthodontic device with traction and molar distalization functions, and relates to the technical field of orthodontics. The device comprises a gum and an arch expander located on the gum, wherein the arch expander is divided into a left part and a right part; the gum comprises a dental arch and a plurality of premolars and postmolars positioned on the upper side of the dental arch, and the premolars and the postmolars are divided into a left part and a right part; the arch expanding device comprises a box body, molar bands located on the premolar and the postmolar, and a push rod arranged between the two molar bands. The reel is arranged in the box body, the connecting piece located on the peripheral side of the reel can be wound or released, when the connecting piece is wound, the connecting piece gradually gets close to the reel, so that the molar band is driven to move, the function of distally moving the molar is achieved, and the movement of the molar band can transmit force through the push rod; therefore, the whole oral cavity correction device applies proper acting force to the dental arch so as to achieve the effect of forward traction.

To provide an improved crown structure which has high discharge efficiency, allows visual confirmation of the adhesive filling state, ensures the structural strength of the crown, prevents the accumulation of food residues and suppresses intraoral infection, does not require the re-removal of a sealing member after surgery, is adaptable to various tooth positions such as anterior teeth, premolars and molars, and can improve the effectiveness and safety of dental prostheses. [Solution] This invention relates to an improved crown structure in the field of dental prosthetics, and includes a crown body 1 that conforms to the shape of an abutment tooth. The crown body is formed with drain holes that penetrate from the bonding surface 3 to the outer surface 4, and the drain holes have a gradually changing diameter structure. The drain holes have a guide groove on their inner periphery, a conical flared opening on the bonding surface side, and an annular reinforcing rib on the outer surface side. The crown also includes a biodegradable sealing member.

An orthodontic appliance and assembly for distal movement of segments in the posterior jawbone region is disclosed. The orthodontic appliance comprises a mesial element having a mesial base surface configured for attachment to a premolar or canine, an arm having a pivot at the distal end of the arm, and a distal element having a distal base surface configured for attachment to a molar. The distal element or distal portion of the arm comprises a distal anchoring structure for connecting a first distal movement force element. The mesial element may have a projection defining a groove for fitting an elastic band, the groove being positioned along a rounded convex surface of the projection having a diameter of at least 3 mm. A method of treatment is also provided.

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 application relates to the field of orthodontics, in particular to a vertical molar fixing device, which comprises a fixing ring, a traction connecting rod and a traction member. The fixing ring is matched with a target premolar, the fixing ring is used for sleeving the premolar, one end of the traction connecting rod is connected with the side wall of the outer circumferential surface of the fixing ring, the other end of the traction connecting rod extends away from the fixing ring, a pulling hook is arranged at the end of the traction connecting rod away from the fixing ring, one end of the traction member is detachably connected with the pulling hook, and the other end of the traction member is connected with the target tooth; the traction member pulls the target tooth when being tensioned. The fixing ring is arranged on the premolar to fix the traction connecting rod. The traction member connected with the traction connecting rod is used for pulling the supernumerary tooth. The fixing ring has a simple structure and can be directly fixed on the tooth without the aid of additional screws, so that the installation steps and the device structure are simplified, and the experience of the patient after installation is improved.

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.

The utility model discloses an orthodontic device for pushing molars to move distally, which comprises a first molars, a first premolars and a lower tassel tongue rod, a first casting belt ring and a second casting belt ring are arranged on the lower tassel tongue rod, and the first casting belt ring is used for being fixed on the first premolars; a cheek-lingual side sliding rod is arranged at the end of the lower beard tongue rod, a transverse stabilizing component is arranged on the cheek-lingual side sliding rod, a push spring is installed on the side, close to the first premolars, of the cheek-lingual side sliding rod, the first premolars are pushed to the distal middle through the push spring and the transverse stabilizing component, and the first premolars are pushed to the distal middle through the transverse stabilizing component. A tooth gap is reserved between the first molars and the first premolars. By adopting the combination of a plurality of structures such as the buccal-lingual sliding rod, the transverse stabilizing component, the push spring, the first casting belt ring and the second casting belt ring, the molar is pushed to the distal position under the action of the transverse stabilizing component and the push spring, and the stability of the whole device in the using process is improved by the structure.

This application discloses a novel device for simultaneously expanding and depressing the mandibular anterior teeth to relieve posterior tooth occlusion, relating to the field of orthodontic technology. It includes a maxillary cast-crown spiral expander, a metal mesh split-plane guide, and traction clips. The maxillary cast-crown spiral expander comprises a cast crown and a spiral expander. The cast crown is used to secure the first premolar, second premolar, and first molar, and the spiral expander is fixedly connected to the cast crown. The metal mesh split-plane guide conforms to the anterior part of the maxillary palate and is fixedly connected to the cast crown. The traction clips are located on the buccal side of the cast crown and are cross-pulled by elastic bands with traction clips located on the lingual side of the mandibular posterior teeth. This application simultaneously expands the arch to solve the problems of maxillary width and vertical misalignment, and utilizes the maxillary cast-crown spiral expander as a reinforcing anchorage to prevent elongation and rotation of the maxillary anchorage teeth. It matches the width of the maxilla and mandible while minimizing anchorage loss, thus relieving posterior tooth occlusion.

The application discloses a double-main-groove three-section multifunctional oral cavity correction system, which comprises self-locking brackets, a first buccal tube, a second buccal tube and an arch wire system. The self-locking brackets are arranged on all incisors, canines and premolars in a tooth system, and the self-locking bracket comprises a bracket body and a bottom plate, and the bracket body and the bottom plate are connected. The application further discloses a double-main-groove three-section multifunctional oral cavity correction method. The application combines the segment arch technology, the auxiliary arch technology and the sliding method gap closing technology, and greatly reduces the friction uncontrolled, the unfavorable alignment and the loss of anchorage in other correction systems, so that the correction result is more controllable.

A device for integrally closing front teeth scattered in a gap comprises a retention and connection device which integrally wraps all teeth in a dentition and is made of an orthodontic pressed film retainer high polymer material; the traction devices are located at the adjacent gaps of the lip and buccal surfaces of the front molar areas or molar areas on the two sides and are arranged in a bilateral symmetry mode, and the upper edges of the traction devices are flush with the junctions of the crown middle 1 / 3 and the crown neck 1 / 3 of the lip and buccal sides of the teeth; the lingual vacuoles are located on the lingual sides of the teeth of the patient, the height of the inner walls of the lingual vacuoles is consistent with the sagittal height of the teeth, and the shape of the inner walls of the lingual vacuoles is completely matched with the shape of the lingual sides of the teeth; the force application device is an elastic body part and is made of one of an elastic rubber ring, a rubber chain or a rubber line; the positioning window is a horizontal groove-shaped window formed in the fixing and connecting device and penetrates through the traction devices on the left side and the right side. According to the utility model, the problems of low correction efficiency, long treatment period, discomfort of a patient in wearing and high treatment cost in the prior art are effectively solved.

The utility model discloses a removable movable appliance for relieving positive locking caused by lingual inclination of rear teeth on two sides, which relates to the technical field of orthodontics and comprises an occlusal plate and a lingual wire for connecting the occlusal plate, according to the removable movable appliance for relieving positive locking caused by lingual inclination of double-side posterior teeth, a non-anatomical biteplate is manufactured from double-side premolars to a molars area, and a cheek side traction hook and a lingual side traction hook are connected to the far-middle cheek-lingual side of the biteplate, so that on one hand, occlusion can be opened, and the situation that the correction effect is affected by occlusion locking of upper and lower teeth is avoided; on the other hand, the lingual posterior teeth can be erected through the cheek side traction hook and the lingual side traction hook, a series of problems caused by extension of the posterior teeth can be prevented, the movable orthodontic appliance avoids a tedious orthodontic mode, is movable and removable, is beneficial to oral hygiene cleaning, meanwhile avoids adverse effects of a traditional orthodontic appliance on the teeth, and is suitable for popularization and application. The correction comfort is improved, so that the device is more convenient and practical in use.

An apparatus for treating sleep apnea and other sleeping disorders, including snoring and bruxism, but also mouth cavity hygiene, and also possibly drug delivery is provided. The apparatus comprises a device configured to be installed on a user's teeth to maintain a relative position of the upper and lower jaws, and a holding material. The device comprises at least one back part, such as a first back part, a second back part and connecting portion (if two back parts are provided), the first back part having an upper side and a lower side configured to contact at least one premolar and / or molar of the upper and lower jaws, respectively, of the right side of a user's teeth when the user's teeth are in a substantially closed position, and the second back part having an upper side and a lower side configured to contact at least one premolar and / or molar of the upper and lower jaws, respectively, of the left side of the user's teeth when the user's teeth are in a substantially closed position, the connecting portion connecting the first and second back parts and configured to extend along the front teeth of the user's teeth. The holding material is included in or configured to be applied to the first and second back parts to secure contact of the teeth with the first and second back parts, respectively, by creating an adhesive effect, a vacuum effect, or a mechanical holding effect on the teeth in contact with the first and second back parts, respectively.

1. Name of the product of this design: Graphical user interface for dental treatment operations for electronic equipment. 2. Purpose of this design product: an electronic device. 3. The key design point of this design product lies in the graphical user interface content on the screen. 4. The picture or photo that best illustrates the key points of the design: main view. 5. Conventional design, other views omitted. 6.Purpose of the graphical user interface: used to display and set relevant functions when operating the dental X-ray machine for oral examination. 7. Description of the changing status of the graphical user interface: The main view is the main operation interface of this design. The left arrow on the middle left side of the main operation interface reduces the exposure time; the right arrow on the middle right side increases the exposure time; the tooth position selection is in the middle lower part, where you can choose the position of the teeth to be exposed and photographed next, from left to right they are incisors, canines, lower molars, upper molars, and premolars; the lock screen and unlock function icons are on the lower left; the battery display and charging indicator icons are on the upper left. Start the operation from the main view and click the exposure button in the lower right corner to enter the exposure preparation interface with sensor positioning function as shown in the interface change status diagram.

The utility model discloses a silica gel tooth appliance, including occlusion, labial and buccal stop and tongue stop, the whole occlusion is U shape setting, including corresponding first occlusion of anterior tooth area tooth setting, corresponding second occlusion of premolar setting and corresponding third occlusion of first molar setting, the left and right sides of first occlusion are connected second occlusion and third occlusion in proper order respectively, and first occlusion and second occlusion and third occlusion all include corresponding maxillary bearing surface of maxillary tooth and corresponding mandibular bearing surface of mandibular tooth respectively, when wearing, the maxillary bearing surface of first occlusion exerts a pressure on the tooth to be pressed down, and the mandibular bearing surface of first occlusion and mandibular anterior tooth area tooth form elongation space, the maxillary bearing surface and mandibular bearing surface of second occlusion contact with maxillary premolar and mandibular premolar respectively, and the maxillary bearing surface of third occlusion and maxillary first molar form eruption space.

The utility model discloses a palate-side micro-implant enhanced rapid expansion appliance, which relates to the technical field of orthodontic appliances, and comprises an expansion appliance, the expansion appliance is fixed on the palate through a micro-implant nail, and the middle separation part of the expansion appliance is overlapped with the middle line of a tooth; the two front tooth hoops are respectively hooped on the first front molars on the left side and the right side; the two anterior palatal bars are respectively connected between the left anterior tooth hoop and the arch expanding device and between the right anterior tooth hoop and the arch expanding device. The utility model aims to provide a novel appliance which can effectively solve the problem of dysplasia and crowding of maxillary bones, reduce adverse and side effects and improve treatment efficiency and stability.

An intra-oral appliance to power and / or communicate with a neurostimulator is provided. The intra-oral appliance can include a teeth covering configured to fit over mandibular incisor, canine and / or premolar teeth of a human being and a remote controller in the form of a housing extending posteriorly from and operably connected to the teeth covering. The housing can include a power source, a coupling coil configured to transmit power to the neurostimulator and configured to receive power from an external charger, and electrical circuitry operably connected to the coupling coil and the power source.

The application relates to the technical field of digital oral cavity, and relates to an automatic determination method of tooth feature points, which comprises a data preprocessing stage, in the XOY plane of a global coordinate system, a projection point of a target tooth mass center coordinate, a projection point of a left adjacent tooth mass center coordinate and a projection point of a right adjacent tooth mass center coordinate form a triangle, a center and a radius of a circumscribed circle of the triangle are obtained, a local coordinate system is established, feature points of the target tooth are determined, the tooth is divided into canines, incisors and molars, and the molars are divided into premolars and molars; and a protrusion point of a mesial and distal surface of the target tooth is determined. The application can be realized through a computer program, and then the feature points of each tooth can be automatically obtained after the tooth model is imported into the computer.

The application belongs to the technical field of oral medicine, and specifically relates to a maxillary fixed expansion appliance, which comprises a spiral expander, a plastic base, a connecting rod, a retaining device and a dental retraction hook. The spiral expander is located in the center of the appliance, the plastic base is divided into two parts in the center and covers the hard palate of the maxilla, the retaining device is composed of a continuous band ring casted by the lower molar or premolar and a single band ring casted by the first molar, and the dental retraction hook is located in the plastic base and used for retracting and lowering the maxillary first molar with buccal inclination after expansion. The appliance has a wide clinical application range and is suitable for patients with mild to moderate transverse maxillary hypoplasia and maxillary posterior tooth buccal inclination compensation. The appliance can achieve good skeletal expansion effect for patients in the mixed dentition period or early permanent dentition period and reduce excessive tooth buccal inclination and movement in the maxillary rapid expansion patients.

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 application discloses a kind of upper front teeth depressor and correction method, including micro-implant anchorage nail, main bow, auxiliary bow and bracket;Bracket is fixed on the tooth crown of the upper front teeth needing adjustment, main bow transversely penetrates bracket and connects several brackets located on different tooth crowns, the micro-implant anchorage nail is one in left and right respectively, and is arranged between the buccal side of left and right two sides second premolar and first molar of maxilla, the two ends of auxiliary bow are connected with micro-implant anchorage nail respectively, and form the pressure lowering force to upper front teeth;Auxiliary bow and implant nail are combined, the force of auxiliary bow directly acts on upper front teeth, and reaction force is cancelled on implant nail, without adverse effect on dentition;Without affecting posterior teeth, upper front teeth are absolutely pressed down.

The functional correction occlusal pad comprises an upper occlusal pad and a lower occlusal pad, wherein the upper occlusal pad covers a first maxillary permanent molar, a first maxillary premolar and a second maxillary premolar; the lower occlusal pad is fixed on the lower jaw tongue side of an oral cavity; the upper occlusal pad comprises an upper jaw fixing occlusal pad and an upper jaw forward movement occlusal pad, the upper jaw fixing occlusal pad is fixed at the upper jaw of the oral cavity, and the upper jaw forward movement occlusal pad is arranged in the oral cavity through adjustment and sliding of a forward movement assembly; the forward moving assembly comprises a first sleeve, an adjusting screw rod, a rotary adjuster, a second sleeve and a base plate, the first sleeve is embedded in the maxillary fixing occlusal pad and provided with a threaded hole, the base plate is embedded in the maxillary forward moving occlusal pad, the second sleeve is fixed to the maxillary forward moving occlusal pad through the base plate, one end of the adjusting screw rod is connected into the threaded hole in a threaded mode, and the other end of the adjusting screw rod is fixed to the second sleeve; the rotary adjuster coaxially sleeves the outer wall of the adjusting screw rod, and a plurality of adjusting holes are evenly distributed in the outer wall of the rotary adjuster in the circumferential direction. The occlusal pad can promote condylar process reconstruction and new bone regeneration, and can effectively improve mandibular retraction or deflection.