360 results about "Anterior tooth" patented technology

The invention relates to the technical field of oral medical instruments, and particularly provides a customized joint jaw position appliance and a manufacturing method thereof.The customized joint jaw position appliance comprises an appliance body, the appliance body comprises an upper jaw tooth occlusion sleeve and a lower jaw tooth occlusion sleeve, and a first occlusal surface of the upper jaw tooth occlusion sleeve is effectively occluded with a second occlusal surface of the lower jaw tooth occlusion sleeve; the guide inclined surface is arranged on the inner side of the anterior tooth area of the appliance body; the upper jaw blocking body and the lower jaw blocking body are respectively arranged on an occlusal surface, a cheek side surface or a lingual side surface of a premolar region on two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve; the upper jaw blocking table and the lower jaw blocking table are respectively arranged on the occlusal surface, the cheek side surface or the tongue side surface of the molar areas on the two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve, and are integrally connected with the appliance body to form a first occlusal surface and a second occlusal surface. According to the customized joint jaw position appliance, the disc-condylar relationship can be more accurately recovered according to the displacement condition of the joint disc of a patient through double-jaw coordination and multi-region blocking design, the treatment period is shortened, and the prognosis stability is improved by matching with a chewing function.

According to the novel mandibular protraction appliance and the digitization-based manufacturing method thereof, a vestibular shield is arranged on the lip side of the lower anterior teeth of the mandibular protraction appliance, and the appliance can effectively seal the oral cavity and improve the dry mouth symptom possibly occurring when a traditional mandibular protraction appliance is worn; the common mouth breathing problem of patients with obstructive sleep apnea hypopnea syndrome (OSAHS) is solved, and the limitation of lip inclination of lower anterior teeth caused by a traditional mandibular advancement appliance is reduced more remarkably.

The invention relates to an occlusion guide plate designing and manufacturing method based on dentition mechanical analysis, which comprises the following steps: S1, acquiring oral cavity image data of a patient, and constructing a three-dimensional digital model comprising a dental crown, a tooth root and an alveolar bone structure; s2, calculating an overall mechanical reference point of a tooth root structure of an anterior maxillary tooth area; s3, acquiring an incisal edge midpoint of each incisal tooth and a cusp point of each canine tooth in the maxillary anterior tooth area, solving a geometric center, and connecting the geometric center with an overall mechanical reference point to form a dentition direction vector; s4, calculating the displacement relationship between the target dentition arrangement and the initial dentition arrangement in the lip-tongue direction; s5, calculating an included angle between the occlusal force direction of the maxillary anterior tooth area and the dentition direction vector; s6, determining key morphological parameters of the occlusion guide plate according to the calculation result of the included angle in S5; and S7, manufacturing the occlusion guide plate. Compared with the prior art, the method has the advantages of precise mechanical adaptation, quantitative treatment prediction, personalized design and the like.

The muscle activator comprises an upper jaw part and a lower jaw part, the upper jaw part and the lower jaw part are connected through a connecting part, and the upper jaw part, the lower jaw part and the connecting part are integrally manufactured; the upper jaw part at least wraps upper jaw anterior teeth, and the lower jaw part at least wraps lower anterior teeth. The invention further discloses a manufacturing method of the muscle agonist, and particularly discloses a 3D printing method. The retention effect is better, direct control over movement of the upper anterior teeth is increased, and limitation to the position of the lower jaw is higher; and the manufacturing process of the muscle agonist is greatly simplified, the muscle agonist manufactured through direct 3D printing can be directly and integrally formed after design, and compared with an existing manual manufacturing method, the manufacturing method has the advantage that the manufacturing process is greatly simplified.

The invention discloses a digital stable jaw pad designing and manufacturing method, and relates to the technical field of oral rehabilitation and digital medical technology.The digital stable jaw pad manufacturing method comprises the following steps that a, three-dimensional point cloud data of oral dentition and mucosa of a patient is obtained through a three-dimensional scanner; b) determining a stable jaw position coordinate model by using an optical motion capture system; c) designing a jaw pad three-dimensional entity model with an anterior tooth area, a posterior tooth area and an edge structure based on the three-dimensional point cloud data and the stable jaw coordinate model; and d) manufacturing the jaw pad through 3D printing equipment, wherein the 3D printing equipment is formed by adopting a polyether-ether-ketone material. By integrating digital acquisition, design and manufacturing technologies, the pain point of a traditional method is solved, and personalized, high-precision and rapid manufacturing of the stable jaw pad is realized.

The invention provides a digital complete denture manufacturing method which comprises the following steps: designing a personalized tooth test tray with exposed anterior teeth on the basis of surface scanning and an impression, then wearing the personalized tooth test tray to manufacture a closed impression, determining a vertical and horizontal jaw position relationship, and then precisely machining a complete denture by adopting a digital method. By adopting the method provided by the invention, the patient can wear a pair of closely-attached and comfortable complete dentures when seeing a doctor for the third time. The whole-process digital processing method is adopted, clinical operation is more standard and consistent, the comfort level of a patient is improved, and the processing time and difficulty are greatly reduced.

The invention provides an auxiliary tooth separation method and system for minimally invasive tooth extraction, and relates to the technical field of digital surgery in stomatology. According to the method, the oral anatomy three-dimensional electronic model is obtained by performing deep learning segmentation and three-dimensional reconstruction on the preoperative CBCT image, and the real-time spatial position and posture of the jaw bone are updated in combination with laser oral scanning of the preoperative anterior tooth area. On the basis, a three-dimensional simulation model is constructed, tooth division cutting path planning, interference judgment and dislocation space analysis are completed, precise tooth division cutting is implemented by a three-way mechanical arm along the planned path, and the safe and controllable automatic tooth extraction and tooth division process is completed in cooperation with water cooling and real-time track correction.

The invention relates to the field of orthodontics, in particular to a device for controlling palatal root movement of anterior teeth of an upper jaw and a manufacturing method. According to the device, the traction arm and the traction ring which extend to the palatal side of the anterior maxillary teeth are additionally arranged on the basis of the transverse palatal bar and are matched with the traction buckle of the anterior maxillary teeth to guide orthodontic force to act below a tooth impedance center, so that root control movement which is difficult to achieve by a traditional orthodontic method is realized, bending torque on an arch wire or placing other root control devices is not needed, and the whole device is simpler and more attractive; in addition, the device part is manufactured by adopting a 3D printing technology, firstly, tooth and intraoral soft tissue data of a patient are obtained by scanning the interior of an oral cavity, then the oral scanning data are matched with CBCT, a specific device is designed by using software, finally, a finished product is directly printed in a 3D manner, the transverse palatal bar and the traction buckle are completely matched with the tooth surface by adopting the 3D printing technology, and the comfort level is high.

The utility model relates to the technical field of teeth, in particular to an appliance suitable for maxillary anterior teeth. Comprising an embedded tooth, a mesio-middle adjacent tooth and two casting belt rings, the embedded tooth is located on the inner side of the bottom of the mesio-middle adjacent tooth, the casting belt rings are located at the two ends of one side of the embedded tooth, a Nand palate support is welded between the two casting belt rings, double-tube buccal tubes are welded to the ends, away from each other, of the two casting belt rings, and a loop is welded to the bottom of each double-tube buccal tube. And a bending piece is fixed on the inner side of the Nand palate support. According to the utility model, maxillary anterior teeth which are impacted on the lip side and are closer to adjacent teeth can be drawn during use; meanwhile, the positioning single-curved labial arch is adopted to firstly draw the embedded tooth towards the labial side, direct traction and force application are carried out, the oral mucosa is prevented from being pressed, the positioning single-curved labial arch is connected with the single-curved labial arch in a welded mode through a loop, the loop part is located at the position of the maxillary premolar, and after the embedded tooth is basically exposed out of the labial mucosa, the embedded tooth can be continuously drawn backwards and downwards until the embedded tooth is basically drawn in place.

The invention relates to the field of oral medical equipment, and particularly provides an oral implant repair opening degree measuring device and a using method, the oral implant repair opening degree measuring device comprises two positioning supports, the two positioning supports are detachably connected with an angle measuring scale, and the ends of the two positioning supports are connected through a rear tooth area measuring scale; a fixing assembly and a first sliding rail are arranged in the positioning support, the fixing assembly is used for fixing the positioning support and the teeth, and the sliding rail is slidably connected with the tooth root fossa measuring mechanism. The positioning support is made of memory alloy, adaptability is high, the positioning support can be stabilized on teeth of the upper jaw and the lower jaw in the measuring process through fixing of the fixing assembly, and then measuring precision is improved. The angle measuring scale is connected to the anterior parts of upper and lower jaw anterior teeth of a patient and is used for measuring an opening angle; the posterior tooth area measuring scale is connected with the upper positioning support and the lower positioning support so as to measure the opening degree of the posterior tooth area. The tooth root socket measuring mechanism is used for measuring the depth and width of the tooth root socket exposed after tooth extraction of the patient. On the premise of meeting the requirement of opening degree measurement, a relatively accurate tooth root socket measurement function is provided.

The embodiment of the invention provides a dental system for occlusal adjustment and a generation method, the dental system for occlusal adjustment comprises N correction instruments for gradually realizing a correction plan step by step, each of the N correction instruments is provided with an upper jaw shell-shaped body for accommodating an upper jaw dentition and a lower jaw shell-shaped body for accommodating a lower jaw dentition, the N upper jaw shell-shaped bodies are respectively provided with an adjusting part for opening the occlusion height of anterior teeth, the N lower jaw shell-shaped bodies are respectively provided with a geometric structure for applying a pressing force to the lower jaw teeth, and the N lower jaw shell-shaped bodies are used for completing the pressing movement in the correction plan step by step for the teeth in the anterior tooth area of the lower jaw. The N adjusting parts enable the relative position relation of the upper and lower jaw teeth in the anterior tooth area to be consistent in the vertical direction in the correction process, and N is a natural number greater than or equal to 2.

The invention discloses a complete denture generation method, device and equipment and a storage medium. The complete denture generation method comprises the following steps: acquiring a plurality of tooth feature points; determining a target false tooth model closest to the current patient in a false tooth model library; and determining an upper and lower jaw anterior tooth occlusion relationship of the target false tooth model. Determining the occlusal relationship between upper and lower jaw posterior teeth of the target false tooth model; determining an upper jaw tooth arrangement termination line and a lower jaw tooth arrangement termination line of the target false tooth model; and based on the adjustment information, finely adjusting the occlusion relationship between the upper and lower jaw anterior teeth, the occlusion relationship between the upper and lower jaw posterior teeth, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line, and determining the final complete denture. Therefore, a target denture model closest to the anterior tooth arrangement information of the current patient is determined in a denture model library, and the target denture model is further adjusted based on the anterior tooth occlusion relation between the upper jaw and the lower jaw, the posterior tooth occlusion relation, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line of the current target denture model, so that a final complete denture is obtained.

The utility model discloses a dental instrument for stopping snore, which comprises an upper jaw shell-shaped dental instrument worn on the upper jaw dentition of a patient, a lower jaw shell-shaped dental instrument worn on the lower jaw dentition of the patient, and a first mounting part arranged on the cheek side of the upper jaw shell-shaped dental instrument and close to the anterior teeth, the connecting piece is arranged on the cheek side of the lower jaw shell-shaped dental instrument and is close to the rear teeth; wherein the first mounting part comprises a convex column which convexly extends away from the cheek side surface of the upper jaw shell-shaped dental instrument; the connecting piece comprises a hooking part, an elastic part and a second mounting part which are connected in sequence and hooked with the first mounting part on the same side; the connecting piece is movably connected to the cheek side surface of the lower jaw shell-shaped dental instrument through the second mounting part; and the hooking part and the convex column hook enable the lower jaw of the patient to move forwards to a preset position in a sagittal manner, so that the airway of the patient is opened, and the snore of the patient is inhibited.

The utility model discloses a dental component which comprises a first matching structure arranged corresponding to the tongue side or the cutting end of anterior teeth of an upper jaw and a second matching structure arranged corresponding to the lip side or the cutting end of anterior teeth of a lower jaw, and the first matching structure and the second matching structure are configured as follows: when the upper jaw and the lower jaw are occluded, the first matching structure is matched with the second matching structure; the first matching structure and the second matching structure abut against each other to generate force or moment, and the force or moment at least comprises lip tilting force corresponding to the anterior teeth of the upper jaw or lip tilting moment corresponding to the anterior teeth of the upper jaw. In the correction process, at least the maxillary anterior teeth generate lip inclination, firstly, the relative positions of the maxillary anterior teeth and the alveolar bone can be gradually adjusted, so that the maxillary anterior teeth are suitable for being pressed down; on the second aspect, the gap between the upper jaw anterior teeth and the lower jaw anterior teeth can be enlarged so that the first matching structure and the second matching structure can be conveniently installed and designed; and thirdly, the anterior teeth of the upper jaw have certain inclination, so that the anterior teeth of the lower jaw can interact with the anterior teeth of the lower jaw conveniently, and the anterior teeth can be depressed, adducted and the like conveniently.

The invention discloses an occlusal stable temporomandibular joint disorder therapeutic jaw plate and a preparation method thereof, and belongs to the technical field of dental restoration. The preparation method comprises the following steps: acquiring the upper and lower jaw position relation of a joint hinge shaft of a patient, and transferring to a jaw frame; the method comprises the following steps: importing a jaw frame and an occlusion relationship into computer software, designing an occlusion plate worn on an upper jaw dentition, and performing parameter adjustment: adjusting the occlusion height until a rear tooth tip is separated from contact by 1-3mm, only one buccal tooth tip of each of two premolars in the left lower and right lower back tooth areas and the first and second molars is in contact with the biteplate, and canine teeth and lower anterior teeth are in contact with the biteplate; and 3D printing is conducted according to the adjusted parameters of the biteplate, and the biteplate is manufactured. According to the manufacturing method, accurate and rapid manufacturing of the occlusal stable temporomandibular joint disorder treatment jaw plate can be achieved, and through combination of the semi-adjustable jaw frame and digital design, the treatment success rate can be remarkably increased, the pain of a patient can be relieved, and the life quality can be improved.

The invention relates to the technical field of oral abutment three-dimensional modeling, and discloses a method for optimizing oral abutment three-dimensional modeling by utilizing a machine learning algorithm, which comprises the following steps of: 1, acquiring detection data of an oral cavity of a patient and a three-dimensional size of an implant, and classifying to form a data set; 2, analyzing the crowding degree and occlusal force distribution state of the teeth of the patient, and generating a crowding ratio and a distribution index; 3, analyzing the inclination of anterior teeth of the patient, evaluating the occlusion relationship of the teeth of the patient, and setting a conversion coefficient for converting the three-dimensional size of the implant into the three-dimensional size of the oral abutment; 4, the three-dimensional size of the oral cavity abutment is simulated, an abutment data set is generated, and the personalized adaptation capacity is high; and step 5, constructing an oral cavity three-dimensional model, an implant three-dimensional model and an oral cavity abutment three-dimensional model of the patient, setting a fixed threshold value, evaluating the fitness of the oral cavity abutment three-dimensional model, and outputting optimization suggestions, and the comfort level of optimization modeling is high.

The invention belongs to the field of dental restoration digitalization, and particularly relates to an anterior tooth layered resin filling restoration method based on the guidance of a digital guide plate. Comprising the following steps: S1, obtaining a three-dimensional digital model of an abutment tooth preparation body; s2, generating a digital model of the dentin form of the defect part layer by layer by using oral cavity computer-aided design software; s3, completing the design of the enamel layer form on the digital model of the dentin form of the last layer of tooth defect part; s4, cover shell type guide plates covering adjacent teeth of the defective teeth are designed, and the cover shell type guide plates are numbered; s5, performing 3D printing on each layer of model and the guide plate, and checking the in-place condition of the guide plate; and S6, filling corresponding dentin resin and enamel resin in each stage of guide plate, resetting the guide plate filled with the resin to the oral dentition, and completing layered resin filling through illumination curing. According to the method, the process is optimized, the operation is simplified, and the operation precision is ensured by fully utilizing the advantages of the digital technology.

The utility model discloses a dental instrument for stopping snore. The dental instrument comprises a first shell-shaped dental instrument worn on an upper jaw, a second shell-shaped dental instrument worn on a lower jaw, a limiting cavity and a connecting piece, the limiting cavity is formed in the position, close to anterior teeth, of the cheek side of the first shell-shaped dental instrument and comprises two side walls and an opening, wherein the two side walls protrude in the far tooth direction and are sequentially arranged in the mesiodistal direction, and the opening is formed in the maxillary gingiva direction. The first end of the connecting piece is movably connected to the position, close to rear teeth, of the second shell-shaped dental instrument, the second end, away from the first end, of the connecting piece is provided with a mounting part protruding towards the lower jaw, and the connecting piece and the limiting cavity are arranged on the same side; during wearing, the first end of the connecting piece rotates around the normal axis of the cheek side face where the connecting piece is located, and after the mounting part enters the limiting cavity, the mounting part at least abuts against the wall of the distal side of the limiting cavity, so that the lower jaw of the patient is kept at the preset position where the airway can be opened, and movement of the lower jaw of the patient in the sagittal direction is restrained.

The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to an orthodontic anterior tooth conjunctive coverage measuring device which comprises a dental probe body. The dental probe body consists of a handle, a transverse measuring rod and a longitudinal measuring rod; the longitudinal measuring rod is composed of a longitudinal rod body, a longitudinal sleeve and a cutting end hooking rod. The longitudinal sleeve sleeves the bottom of the longitudinal rod body; a plurality of first scales are arranged on the outer side wall of the longitudinal rod body, a plurality of second scales are arranged on the outer side wall of the longitudinal sleeve, and a plurality of third scales are arranged on the outer side wall of the transverse measuring rod. According to the measuring device, the longitudinal rod body and the longitudinal sleeve can be used for measuring the length and the covering distance of a lower anterior tooth crown, the longitudinal sleeve and the longitudinal rod body form a telescopic rod structure with the adjustable length, the measuring device can be suitable for measuring lower anterior tooth crowns with different lengths, the transverse measuring rod can be used for measuring the covering distance, and compared with an existing common tooth probe, the measuring device is convenient to use. The measuring device is specially used for measuring the covering distance and the covering distance, and the accuracy of a measuring result can be remarkably improved.

The utility model discloses a resin fiber periodontal splint type bonding bridge capable of repairing missing anterior teeth, and belongs to the technical field of mouth rehabilitation. The utility model relates to a resin fiber periodontal splint type bonding bridge capable of repairing missing anterior teeth. The bonding bridge comprises a bridge body, the clamping plate assembly is fixedly connected to the bridge body; the auxiliary assembly is fixedly connected to the bridge body, and the auxiliary assembly is located over the clamping plate assembly and is adjacent to the clamping plate assembly; when the bridge body is worn into the tooth missing part of the dentition, the clamping plate assembly is clamped with the abutment tooth body, and the auxiliary assembly is attached to the side surface of the dentition body; through the clamping plate assembly and the auxiliary assembly which are arranged on the bridge body, the stability of the bridge body during installation can be improved, and meanwhile, the auxiliary assembly is adhered to the abutment tooth on the side edge of the bridge body, so that the shaking of the bridge body and peripheral teeth can be further reduced; therefore, the fixed mounting effect of the bridge body and the loose tooth fixing effect of the abutment are improved.

This invention discloses an automated anterior tooth feature parameter extraction method and evaluation system based on computer vision, comprising: acquiring and visualizing a full-mouth scan image of a patient to be processed; cropping the corresponding tooth portion image; using Gaussian blur to eliminate specular reflection; using color segmentation to set thresholds for the H, S, and V channels respectively; separating the teeth and gingiva in each tooth portion image and performing morphological processing on each; extracting the tooth and gingiva portion contours using contour extraction methods; further refining the segmentation accuracy using the Chan-Vese active contour model algorithm and the energy function within the tooth portion contour; extracting corner points using the Shi-Tomasi corner detection method and then clustering them; extracting other important evaluation feature points through curve fitting and extreme value finding methods; and finally calculating relevant objective indicators for tooth evaluation and automatically generating the corresponding tooth score, thus completing the automated anterior tooth evaluation.

The invention provides a mechanical arm path planning method and device for anterior tooth preparation, relates to the technical field of tooth preparation path planning, and aims to realize precise tooth preparation operation in a complex oral environment. The method comprises the following steps: constructing an anterior tooth preparation digital model according to oral scanning data of a patient, the anterior tooth preparation digital model representing a target form of a repaired tooth; according to the anterior tooth preparation digital model, a bur motion coordinate system is constructed, and the bur motion coordinate system is used for providing space origin reference for tooth preparation path generation; by taking the geometric parameters of the machine needle and the anatomy of the oral cavity of the patient as constraints and taking the anterior tooth preparation digital model as a starting point, reversely calculating a tooth preparation path of cutting from an original tooth body of an anterior tooth to the anterior tooth preparation digital model under the machine needle motion coordinate system; and converting the tooth preparation path into a mechanical arm control instruction to control a mechanical arm to carry out tooth preparation operation on the original anterior tooth body in the oral cavity of the patient.

To provide a facing crown capable of making the strength of an upper jaw front tooth equal to the occlusal force of a molar, and a wax cover capable of efficiently shaping a wax pattern formed in the process of manufacturing the facing crown.SOLUTION: A facing crown 30 to be attached to an upper jaw front tooth 11 is provided with a metal frame 32, and a step part 34 with which the top part of a lower jaw front tooth 21 is brought into contact is formed on the tongue side of the metal frame 32 when attached to the oral cavity. In a wax cover 40 used when the facing crown 30 is manufactured, a molding stepped part 45 having a shape similar to the shape of a stepped part 34 of the metal frame 32 is formed in a cutting edge part 44 of the wax cover 40.SELECTED DRAWING: Figure 1

An orthodontic appliance system (10) includes an appliance (12). The appliance (12) is provided with a shell (22), and the shell (22) comprises a first pair of cavities (24) and a second pair of cavities (24). Each cavity (24) of the first pair of cavities is for receiving an anterior tooth (56). Each cavity (24) of the second pair of cavities is for receiving a posterior tooth (64). The housing (22) includes an intermediate cavity (24) between a first cavity (24) of the first pair of cavities (24) and a second cavity (24) of the second pair of cavities (24). Each intermediate cavity (24) is for receiving a tooth between an anterior tooth (56) and a posterior tooth (64). The intermediate cavity (24) may be larger in size relative to the teeth. The housing (22) has a plurality of walls (32, 34, 36, 40) that define a cavity (24). At least one wall (32, 34, 36, 40) of the intermediate cavity (24) contains a rigidity enhancing region (42) extending from a first cavity (24) to a second cavity (24) of the pair of cavities (24). The region (42) may be a structure such as a stiffening beam (50).

An intraoral device includes a shell form including a top surface, a bottom surface, an arcuate anterior edge, a posterior edge and a nominal depth between the top and bottom surfaces thereof, an arcuate channel formed within the shell form along the anterior edge, open at the top surface, the channel including dental impression material enabled by process to accept a plurality of maxillary anterior teeth of a user forming a mold, a bottom plate assembled to the bottom surface of the shell form may be interchangeable, the bottom plate conforming to the peripheral shape of the shell form, the bottom plate hosting at least one incline angle on the bottom surface thereof.

The utility model provides a sliding type gap retainer which comprises a left resin base, a right resin base, a left retainer with one end embedded in the left resin base and a right retainer with one end embedded in the right resin base, and artificial teeth suitable for being matched with lacked deciduous tooth gap parts are connected to the left resin base or / and the right resin base. A sliding accessory is connected to the ends, located on the anterior tooth tongue side, of the left and right resin bases, the sliding accessory comprises a left sliding block embedded in the left resin base and a right sliding block embedded in the right resin base, left and right sliding holes which are transversely through and opposite are formed in the left and right sliding blocks respectively, and sliding rods with two bent ends are slidably connected into the left and right sliding holes; grooves communicated with the sliding holes are transversely formed in the ends, away from each other, of the left and right sliding blocks, and the two bent ends of the sliding rod slide in the left and right grooves in a matched mode. The left sliding block and the right sliding block in the sliding type gap retainer can slide freely in the transverse direction of the sliding rod, and growth of the transverse width of the lower jaw dentition, the alveolar bone and the jaw bone of a child cannot be limited.

The utility model discloses an anterior tooth reverse jaw corrector. The anterior tooth reverse jaw corrector comprises an upper jaw base and a lower jaw base, the lossy spiral expansion device is mounted in the middle of the upper jaw base plate; the two sides of the upper jaw base plate are each provided with one jaw pad, and the jaw pads cover upper jaw rear teeth; the two ends of the long arrow snap ring are embedded in the upper jaw base plate, and a sleeving and hanging part in the middle of the long arrow snap ring corresponds to the outer side of the upper jaw base plate; and the adjacent hook ball clamp is provided with a retention hook which is attached and fixed outside the molar and / or the canine. The anterior tooth reverse jaw corrector provided by the utility model is suitable for various stages such as deciduous teeth, mixed dentition, initial constant dentition and the like, solves the problem that the conventional corrector comprising the hyperbolic reed is easy to break, is high in safety performance, and can effectively correct the anterior tooth reverse jaw condition of various age stages.

The present invention relates to an auxiliary anterior teeth torque control device, which comprises a traction hook, an anterior teeth bracket, a spring seat and a traction seat; each anterior tooth is fixed with an anterior teeth bracket, and adjacent anterior teeth brackets are connected by a small coil, the spring seat and the traction seat are respectively fixed on the canine and the second premolar, the spring seat and the traction seat are connected by a square wire, the first molar and the canine are each provided with a traction hook, and the two traction hooks are connected by a rubber chain, the auxiliary anterior teeth torque control device of the present invention has a small force attenuation and a continuous force.

Dental apparatus, systems, and methods for providing anterior, lateral, and vertical movement, an apparatus including a posterior portion to be affixed to and supported by a posterior dental structure of a patient; and an anterior portion connected to and separable from the posterior portion, the anterior portion operable to provide anterior movement, lateral movement, and vertical movement to an anterior dental structure of the patient.

The invention provides a guide plate system for full-thickness splitting of a palate center seam and a manufacturing method of the guide plate system. The guide plate system comprises a front guide plate and a palate guide plate, the front guide plate comprises a front tooth area retention part and a front guide part, the front tooth area retention part is matched with an upper jaw front tooth area to limit the intraoperative position of the front guide plate, and the front guide part is provided with a front guide window which limits a vestibular sulcus area osteotomy line; the palate guide plate comprises a posterior tooth area fixing part and a palate guide part and limits a mucous membrane containing space, the posterior tooth area fixing part is matched with maxillary posterior teeth and part of palate mucous membrane to limit the intraoperative position of the palate guide plate, and the palate guide part is provided with a palate guide window which limits an osteotomy line of a palate center joint.