37 results about "Maxillary dentition" patented technology

Methods and systems for anesthetizing a portion or all of a patient's maxillary dental arch using a nasal delivered anesthetizing composition. The process generates anesthesia sufficient for facilitation of operative dentistry, endodontics, periodontics or oral surgery for teeth of the maxillary arch. The dental nasal spray process consists of inserting one or more dispensing devices through the patient's nostril and delivering metered dosages of anesthetic solution or gel into the nasal cavity. The process may utilize a single solution which is a mixture of anesthetic agents, vasoconstricting agents and other physiological inert agents or two separate solutions, wherein one solution contains the vasoconstricting agents and the other solution contains the anesthetic agents. Anesthetic diffusion through the thin walls of the nasal cavity allows for the blocking of nerve impulses originating from the maxillary dentition and surrounding tissues. Anesthesia of specific oral regions such as right versus left sides of the dental arch, anterior versus posterior teeth, and soft tissue anesthesia may be controlled through modification of the dosage volume and the selection of right or left nostril insertion and agent delivery.

A pharyngeal airway adjuster, or mandible positioning device, has a maxillary dentition engagement component and a mandibular dentition engagement component, each on opposite sides of a plane extending therebetween. An adjustable connection couples the maxillary dentition engagement component with the mandibular dentition engagement component. The adjustable connection has a first adjustment screw having a longitudinal axis parallel to the plane and a second adjustment screw having a longitudinal axis perpendicular to the plane. The first and second adjustable screws are independently adjustable and structured to effect horizontal and vertical displacement, respectively, of the maxillary dentition engagement component relative to the mandibular dentition engagement component. The pharyngeal airway adjuster has a number of indicators adapted to indicate the amount of forwardly and rearwardly displacement effected by the first adjustment screw and/or the amount of upwardly and downwardly displacement effected by the second adjustment screw.

Provided is an apparatus for the alleviation of sleep apnoea in which dentition engagement units or dental overlays shaped to engage the maxillary and mandibular dentition of a subject each having a laterally located pair of flanges the ends of which almost abut, magnets embedded in said flanges with their like poles adjacent or sinusoidally-shaped extension elements made from shape-memory material having a transition temperature equal to or slightly less than normal body temperature and accommodated in cavities in said flanges provide, respectively, a magnetic repulsion force or expansive force when warmed by body heat sufficient, during sleep-induced relaxation, to displace said mandibular dentition engagement unit or dental overlay forwardly in relation to said maxillary dentition engagement unit, displacing the mandible of the subject and thereby effecting a displacement of the temporomandibular joint.

The invention provides a cranial jaw traction device for maxillary fracture, relating to medical appliances. The device provided by the invention is provided with a head cap, a cambered fixing plate, a middle fixing bracket, a lateral fixing bracket, a maxillary dentition connecting structure, a middle traction bracket and a lateral traction bracket, wherein the cambered fixing plate is arranged on the head cap; the middle fixing bracket and the lateral fixing bracket are installed on the cambered fixing plate through an included angle adjusting mechanism; the middle traction bracket and the lateral traction bracket are arranged on the maxillary dentition connecting structure; the middle traction bracket extends to the outside of the mouth; the lateral traction bracket firstly extends from the lateral part to the middle part along the dental arch, then extends to the outside of the mouth, and finally extends to the lower margin of the cheekbone; and each fixing bracket and each traction bracket are respectively provided with traction rods made of platy elastic materials, wherein the longitudinal projections of all middle traction rods are overlapped, the longitudinal projections of all lateral traction rods are mutually staggered, each traction rod is provided with a group of fixing structures, and an elastic traction belt of which the two ends are articulated with the corresponding traction rods through the fixing structures is arranged. The device provided by the invention is simple, convenient and practical, can be reset accurately, can be fixed firmly, can not cause wounds, can realize early treatment, and is suitable for treating maxillary fracture, old fracture and facial deformity.

The invention relates to an adjusting guide making method. The method comprises following steps: an upper jaw 3D model and a lower jaw 3D model of a patient are obtained with a 3D scanning technology,and a 3D position relation of upper jaw dentition and lower jaw dentition of the patient in different states is obtained; an occlusion contact relation of the patient in different states is obtainedon the basis of the 3D position relation; lower jaw positions of the patient in different states are gathered in 3D software, a repair form of upper jaw anterior teeth is designed based on this, and adiagnostic model is formed; an ideal repair effect of the upper anterior teeth of the patient and a position relation of the upper anterior teeth and the lower jaw dentition in different states are obtained through 3D design on the basis of the 3D model; occlusal interference is avoided by adjusting incisal form of lower jaw anterior teeth, and an adjusting guide is designed by the 3D software onthe basis of the adjusted incisal form of lower jaw anterior teeth; and the diagnostic model and the adjusting guide are obtained through 3D printing. The adjusting guide made with the method can rapidly and accurately adjust and grind dental tissue.

The invention provides an intelligent tongue muscle function training appliance and a manufacturing method thereof.The appliance comprises a U-shaped steel wire, the U-shaped steel wire is arranged on the maxillary dentition palatal side, the appliance further comprises palatal side positioning assemblies, a tongue muscle training assembly and a pressure recording assembly, the two ends of the U-shaped steel wire are provided with the palatal side positioning assemblies used for being connected with first molars on the left side and the right side respectively, and the pressure recording assembly is arranged on the right side of the U-shaped steel wire; a tongue muscle training assembly is arranged in the middle of the U-shaped steel wire and comprises a base and a tongue tip positioning piece, the middle of the tongue tip positioning piece is rotationally connected with the base, the base is connected with the middle of the U-shaped steel wire and provided with a waterproof shell, and a pressure recording assembly is arranged in the waterproof shell. The pressure recording assembly comprises a pressure sensor, a microprocessor, a clock module, a storage module and a power supply module; according to the method, the tongue muscle can be accurately and effectively trained, the training effect is guaranteed, meanwhile, the time and strength of tongue muscle training can be accurately recorded, and a reliable basis is provided for subsequent diagnosis and treatment.

The invention provides a posterior tooth decompression bite plate and a manufacturing method thereof, relates to the technical field of orthodontic instruments, and is used for improving the treatmenteffect of treating temporal-mandibular joint disorder comprehensive syndromes. The posterior tooth decompression bite plate comprises a retainer and a bite guide body, the retainer extends in a curveconsistent with the dentition in shape and comprises a palate side wall, a buccal side wall and an occlusal surface, the palate side wall and the buccal side wall are oppositely arranged, the occlusal surface is connected between the palate side wall and the buccal side wall, and the palate side wall, the buccal side wall and the occlusal surface define a tooth socket used for being fixed to thedentition. Wherein the occlusion guide body is arranged in a molar area of the retention body, comprises an occlusion surface used for being propped against jaw teeth, and is used for strutting an upper jaw dentition and a lower jaw dentition and enabling a lower jaw condylar process to retreat to an edge position limited by a temporal-mandibular ligament. The posterior tooth decompression bite plate provided by the invention is used for treating temporomandibular joint diseases.

An attachment system for use with an intra-oral dental appliance to be inserted into the oral cavity of a human for treatment of sleep apnea, snoring, bruxism, and temporo-mandibular joint disorder, the attachment system having: a first attachment means securable to a bilateral under surface conforming to the clinical occlusal plane of a human, and to the maxillary dentition of a first molded member; a second attachment means securable to a bilateral upper surface conforming to the clinical occlusal plane of a human, and to the mandibular dentition of a second molded member; an attachment element having means for connecting the first attachment means, and connecting the second attachment means cooperatively together.

The invention relates to the field of medical instruments, in particular to a self-fixing individualized mandible retainer and a construction method thereof. The construction method comprises the following steps: constructing a jaw bone three-dimensional fusion model based on a jaw bone three-dimensional model, a maxillary tooth three-dimensional model and a mandibular tooth three-dimensional model; based on the outer surface of the maxillary dentition, constructing and obtaining a maxillary tooth sleeve retention area, and forming a maxillary tooth retention groove corresponding to the mandibular dentition in the maxillary tooth sleeve retention area; on the basis of the outer surface of the mandibular dentition, constructing a mandibular tooth biteplate area, and forming a mandibular tooth containing groove corresponding to the mandibular dentition in the bottom of the mandibular tooth biteplate area; and constructing an occlusion connection area, wherein the occlusion connection area is connected with the maxillary tooth sleeve retention area and the mandibular tooth occlusion plate area. A user wears the mandible retainer to fix the mandible at a proper position of the mandible designed by a computer by means of the maxillary tooth sleeve and the biteplate, and the proper position of the mandible is adjusted according to the design of different rehabilitation stages of the user, so that the effect of preventing the mandible from retreating after an operation can be achieved.

The invention belongs to the technical field of craniomaxillofacial surgeries, and particularly relates to an individualized craniomaxillofacial region navigating and registering guide plate and a registering method thereof. The individualized craniomaxillofacial region navigating and registering guide plate comprises a biteplate and registering mark points, wherein the registering mark points arecones of which the diameter is 1mm and of which the depth is 1mm. Design is performed through a computer, the main structure of the individualized craniomaxillofacial region navigating and registering guide plate comprises two parts, namely a biteplate part which can be in close contact with maxillary dentition and the registering mark points which are in discrete distribution at the flank and the wing of the guide plate and which are used for point registering. A patient only needs to be subjected to shooting of imaging examination once during preliminary diagnosis, so that secondary radiation injury can be avoided; and besides, a plaster model of the maxillary dentition is prepared. The individualized craniomaxillofacial region navigating and registering guide plate is a novel guide plate, and a computer assisted design technique, a three-dimensional printing technique and a navigation technique are combined; and according to the corresponding registering method of the individualized craniomaxillofacial region navigating and registering guide plate, systematic registration is completed through the registering mark points in virtual design, and the registering method is an innovative registering method.

The invention relates to a digital model selection manufacturing method for anterior teeth aesthetics forms based on gas classification, which comprises the following steps: 1) dividing the anterior teeth aesthetics forms into six classes according to a corresponding relationship between dental crown lip surface forms and appearance gas of six teeth of maxillary anterior teeth; 2) performing three-dimensional scanning on each type of parting to serve as basic template data D1; 3) enabling the patient to select a favorite gas quality type by himself/herself; 4) performing three-dimensional scanning on the maxillary dentition of the current patient to obtain data D2; 5) taking the invariable part as a common area, firstly zooming the D1 to be similar to the D2 in size by using an integral zooming algorithm, and then registering the D1 to the D2 by using a common area registration algorithm; and 6) directly replacing the data of the corresponding area in the data D2 with the anterior teeth data in the data D1, and using a mouse to interactively adjust the detail form to obtain a digital prediction model of the individual anterior teeth aesthetic form. According to the personality characteristics of the patient, the anterior teeth aesthetic form is designed, and the aesthetic design level of the operator is rapidly improved.

The invention discloses a manufacturing method and application of a pressed film material functional appliance, and belongs to the technical field of oral treatment. The manufacturing method comprisesthe following steps: preparing an impression, wherein preparing upper and lower jaw tooth retention film; transferring a occlusal relationship; reconstructing occlusion; fixing and reconstructing theocclusal relationship wherein blending a dental self-setting plastic material, and fixing and connecting rear tooth sections of the upper and lower jaw tooth retention film into a whole at the reconstructed occlusal relationship position; removing the lower anterior tooth retention film: cutting off the lower anterior tooth retention film. According to the manufacturing method, the lower jaw dentition ultrathin retention film is moved forwards by 4-8 mm to be fixed to the ultrathin retention film of the upper jaw dentition, the ultrathin retention film of the lower jaw anterior teeth is removed, and a space and a channel for free movement of the tongue body when the mouth is opened for speaking are reserved.

An oral appliance as swallowing auxiliary device with coverage of maxillary teeth and a manufacturing method thereof are provided. The oral appliance comprises a retention framework and a palatal pad. The retention framework is manufactured according to the surface of maxillary dentition, and some case according to the surface of gingiva around the maxillary teeth together. The palatal pad corresponds to the swallowing and pronouncing functional position of tongue and palate. The oral appliance in the present invention is made by a first material and a second material, such as elastic and resiliently soft material, and it obtains well retention force by the material embracing the undercut between the path of insertion of the device and the surface of maxilla teeth or gingiva around the maxillary teeth. The oral appliance can get well retention to withstand the swallowing force and improve the functional performance as maximum tongue pressure, thereby improving the oral intake function and facilitating the dysphagia rehabilitation.

The invention relates to the technical field of oral cavity auxiliary medical instruments, and provides a manufacturing method of a dental occlusion recording device, the dental occlusion recording device and a using method of the dental occlusion recording device. The manufacturing method of the dental occlusion recording device comprises the following steps: acquiring upper and lower dentition data when tooth tips of a patient are staggered; matching the upper and lower dentition data of the patient to a virtual frame; adjusting the height of a cutting guide needle on the virtual frame, and determining the vertical distance needed by treatment; forming the dental occlusion recording device on the virtual maxillary dentition according to the vertical distance required by treatment; obtaining preparation parameters of the dental occlusion recording device; and preparing an entity of the dental occlusion recording device according to the obtained preparation parameters of the dental occlusion recording device. The manufacturing method is completed by using a digital technology, and the manufacturing method is simpler, more efficient and higher in precision. By means of the method, the real jaw position relation needed by treatment can be directly obtained, errors caused by a process for indirectly determining the jaw position relation by operating a hinge shaft on the frame are avoided, and the accuracy of determining the jaw position relation can be improved.

A mandibular advancement splint) MAS) including dentition engagement units, each having a face for operatively abutting a complementary face of the other, and an opposed dentition engagement face which is adapted to positively engage the maxillary or mandibular dentition. A plane of abutment of the faces is approximately normal to the sagittal plane to facilitate sliding displacement of one engagement unit relative to the other. The MAS further includes at least one elastic element configured to operatively exert a user-configurable urging force between said dentition engagement units, so that the mandibular dentition is biased forward and along said abutment plane relative to the maxillary dentition when the splint is in use.

The invention provides a three-dimensional accurate positioning machine for upper jaws, and relates to the field of medical apparatuses. The positioning machine comprises cantilevers, a connecting shaft, a spacer and an elasticity cap, wherein two cantilevers and one spacer are sequentially mounted on a thread shaft from bottom to top, the elasticity cap is arranged above the spacer and is connected with the thread shaft, a middle shaft outer sleeve pipe is in threaded connection with a limiting cylinder, a middle shaft is arranged in the middle shaft outer sleeve pipe, and a sliding rod and auniversal head are sequentially arranged in the limiting pipe from the head end to the tail end; and the elasticity cap is screwed down downwards, a middle shaft can maintain the original state, thespacer and the middle shaft outer sleeve pipe move downwards and the sliding rod and the universal head move outwards, and finally, various components of the positioning machine cannot move. The invention further provides an orbital plane indicator and an inserting groove cooperating with the three-dimensional accurate positioning machine for upper jaws for use. The three-dimensional accurate positioning machine for upper jaws can guarantee that the maxillary tooth occlusal plane and the orbitomeatal plane are parallel, the maxillary tooth row midline and the facial midline are consistent, andthe problem that bite plane and superior tooth midline are oblique after an operation can be solved.