50 results about "Upper dentition" patented technology

Apparatuses, systems, and methods for treating oral functions are shown and described. An orthotic dental system for treating oral functions includes an upper dentition orthotic, a lower dentition orthotic, and an articulator system. The articulator system extends between the upper and lower dentition orthotics and can have at least one rigid connector pivotally coupled to the upper dentition orthotic and the lower dentition orthotic. A spacer can be positioned and configured to spatially separate the upper dentition orthotic and the lower dentition orthotic a desired minimum distance. The orthotic dental system can improve various types of oral functions.

The invention relates to a complete dentition full denture finished product resin tooth, which comprises an upper denture, a lower denture, an upper dentition and a lower dentition, wherein the upper dentition is fixedly connected with the upper denture; the lower dentition is fixedly connected with the lower denture; and the upper dentition and the lower dentition are engaged with each other and are integral dentitions respectively. According to the complete dentition full denture finished product resin tooth, during arrangement of teeth and wearing, the upper dentition and the lower dentition are quickly and centrally engaged, so that the arrangement efficiency of the teeth is increased, the difference in tooth arrangement level of technicians is reduced, and the aims of guaranteeing wide close contact, reducing the clinical occlusal adjustment time and shortening the treatment time of patients are fulfilled. Each tooth is arranged according to an inclination angle in the tooth arrangement standard and positional relation of each dental cusp and an occlusal plane; the upper dentition and the lower dentition are matched teeth and are centrally engaged without error basically; the chair-side occlusal adjustment time of the full denture is reduced; the treatment time is shortened; and the comfort and the satisfaction of patients are improved.

Apparatus for reducing obstructive sleep apnea, snoring and/or nasal drainage. One apparatus includes an upper member fitting the interior and exterior surfaces of a user's upper dentition, and a lower member fitting similarly adjacent a user's lower dentition. The lower member includes eyeteeth extensions projecting away from the lower member. The upper member includes molar extensions projecting away from the upper member and toward the member molar regions so that when the user bites or clenches, the upper right and lower right extensions impinge on one another in substantially overlapping fashion, as do the upper left and lower left extensions. The upper and lower members have an anterior shape to form a gap sufficient for the user's tongue to extend into the gap, and each molar extension may include a magnet. Methods of using the apparatus and kits to reduce sleep apnea, snoring, and/or nasal drainage.

Apparatus for reducing obstructive sleep apnea, snoring and/or nasal drainage. One apparatus includes an upper member fitting the interior and exterior surfaces of a user's upper dentition, and a lower member fitting similarly adjacent a user's lower dentition. The lower member includes molar extensions projecting away from the lower member. The upper member includes upper molar extensions projecting away from the upper member and toward the lower molar extensions so that when the user bites or clenches, the upper right and lower right extensions impinge on one another in substantially overlapping fashion, as do the molar upper left and lower left extensions. The upper and lower members have an anterior shape to form a gap sufficient for the user's tongue to extend into the gap, and each molar extension may include a magnet. Methods of using the apparatus and kits to reduce sleep apnea, snoring, and/or nasal drainage.

A mandibular advancement appliance is described which is secured to a subject's dentition. The appliance may adjust a position of the subject's lower dentition relative to the upper dentition while maintaining a distance between the upper and lower dentition. The appliance may also allow for the free rotation of the lower dentition relative to the upper dentition for increased comfort. Additionally, the appliance may also be utilized with a tongue retention assembly for maintaining a position of the subject's tongue relative to the device for treating sleep disordered breathing.

In a method according to an embodiment of the present invention, a plurality of microsphere targets is applied to a surface of a tooth on the upper dentition of a person and a tooth surface of the lower dentition of the person. At least two sets of stereoscopic images are obtained, where the microsphere targets are visible in the field of view of each image. The center position of the beads is photogrammetrically determined in three dimensions for each set using the images taken from perspective positions. The change in bead positions in the sets of stereoscopic images is analyzed to mathematically characterize the jaw motion of the person.

The invention discloses a navigation device used for aiding positioning of a labial bracket. The navigation device is composed of an occlusion plate (1), a guiding frame (2) and a connecting piece (3), wherein the occlusion plate (1) is in a horseshoe shape and is matched with the shape of the gum of an orthodontic patient, the upper and lower surfaces of the occlusion plate are provided with occlusion tooth prints (4) matching with upper dentition and lower dentition of the orthodontic patient, the number of the guiding frame (2) is at least one, the cross section of each guiding frame (2) is in an L shape and is fixed above and/or below the outer side of the occlusion plate (1) via the corresponding connecting piece (3), the side, where a horizontal opening is located, of the guiding frame faces the front center line of the occlusion plate (1), and the side, where a right angle is located, of the guiding frame is far away from the front center line of the occlusion plate (1) and is correspondingly distributed relative to an orthodontic tooth. The invention also discloses a manufacturing method for the navigation device. The manufacturing method is simple, mature and easy to promote; and the prepared navigation device is simple in structure, convenient to operate and comfortable, well fits teeth, ensures accuracy of the bonding position of the bracket, omits the step of indirect bonding and improves clinical operation efficiency.

The invention discloses a mandible guiding forward and fixed orthodontic combined correction device, which comprises a maxillary correction device and a mandibular correction device, wherein the maxillary correction device comprises a first metal joint crown and a palate rod which are arranged on a first molar and a second premolar or a second primary molar, a first buccal tube (the formula is shown in the formula) and a pad are arranged on the first metal joint crown, an upper dentition main arch wire is arranged on the first buccal tube, (the formula is shown in the formula) and a power armis arranged on one side of the pad; the mandibular correction device comprises a second metal joint crown and a tongue arch which are arranged on the first molar and the second premolar or the primarymolar, a second buccal tube is arranged on the buccal side of the second metal joint crown, a lower dentition main arch wire is arranged on the second buccal tube, the second metal joint crown is provided with (the formula is shown in the formula) a blocking arm which matches with the power arm of the pad. According to the mandible guiding forward and fixed orthodontic combined correction device,the maxillary power arm and the mandibular blocking arm are matched to realize that the mandible is guided forwards, and the fixed correction is realized through the bracket, the upper dentition mainarch wire and the lower dentition main arch wire arranged on the tooth surface, so that the device has the advantages of strong support, convenient operation, good correction effect, sound patient experience and the like.

The invention relates to the technical field of oral treatment equipment, and discloses a positioning device for an oral implant surgery and a surgical path planning method. The positioning device includes an upper dentition positioning component, a lower dentition positioning component and a visual sensor; the upper dentition positioning component comprises a first dental mold sleeve plate and afirst visual marking member, the first dental mold sleeve plate is used for fitting the upper dentition, and the first visual marking member is connected to the first dental mold sleeve plate and protrudes the oral cavity; the lower dentition positioning component includes a second dental mold sleeve plate and a second visual marking member, the second dental mold sleeve plate is used for fittingthe lower dentition, and the second visual marking member is coupled to the second dental mold sleeve plate and protrudes the oral cavity; and a lens of the visual sensor is oriented towards a surgical field. The positioning device uses a machine vision system to convert a three-dimensional model in an occlusal state, performs preoperative measurement and intraoperative monitoring of the patient'sjaw position, and can improve the safety of the operation.

The invention discloses a method for manufacturing a complete denture with a personalized polished surface by using an old denture. The method comprises the following specific steps of: preparing an old maxillary denture and an old mandibular denture of a patient; taking the old maxillary denture as an individual tray, and performing final impression preparation and polished surface shaping; taking the old mandibular denture as an individual tray, performing final impression preparation, and performing polished surface shaping at the same time; scanning the maxillary final impression and the mandibular final impression with the personalized polished surface to obtain an STL file; separating dentition from the STL file; cutting the separated upper dentition and lower dentition by using a resin block by using a CAD/CAM method; and resetting the cut dentition into an embedded female die cavity, and performing glue filling injection molding to finish manufacturing of the complete denture. The method disclosed by the invention is accurate and simple in manufacturing, the defect that the personalized polished surface is not fully formed due to direct forming of self-setting resin is overcome, the time of adjusting occlusion during tooth wearing is reduced, and the patient can rapidly adapt to a new complete denture.

The invention relates to an orthopedic device stimulating lower mandibular advancement and inhibiting upper mandibular growth, comprising an upper mandibular portion and a lower mandibular portion. The upper mandibular portion has left and right plastic occlusal pads, a screw opener, and left and right jaw rods with one located behind the other. The screw opener is located at the midline of the upper mandibular jaw of a patient. The left and right plastic jaw rods have one end fixed to the screw opener and the other end integrated to the left and right plastic occlusal pads. The lower mandibular portion has left and right plastic occlusal pads connected via a lower mandibular lingual plastic base, a snap ring, and spherical adjacent hooks, the left and right occlusal pads of the lower mandibular portion cover occlusal surfaces of lower mandibular left and right first premolar teeth or first deciduous molars and are in a slant crossing relation 70 degrees upwardly and towards mesiocclusion with the left and right occlusal pads of the upper mandibular portion at the distal of the first premolar teeth or first deciduous molars. The orthopedic device has the advantages that the device is fixedly bonded to upper dentition through the upper mandibular portion, the lower mandibular portion is mechanically secured to lower dentition through the snap ring, adjacent hooks and the lengthened base, and this structural configuration has ideal orthopedic effect.

The invention discloses a maxillary expansion type occlusal pad used for mixed dentition condylar fracture. The maxillary expansion type occlusal pad comprises a base bracket, function surfaces, tissue surfaces, and a maxillary expansion device; the base bracket is used for coating upper dentition; the tissue surfaces on the upper part of the base bracket are fixedly arranged on oral cavity upperdental crowns of patients via bonding; the base bracket is divided into two parts, including an affected side base bracket and a healthy side bracket, at the center; the affected side base bracket andthe healthy side bracket are connected through the maxillary expansion device; the function surfaces on the lower part of the base bracket are designed to match mandibular teeth. The maxillary expansion type occlusal pad is used for correcting discordant maxilla and mandible width of children condylar fracture, and posterior crossbite, reducing the pressure of affected side condylar process zones, is excellent in matching relationship with canine fossa of antagonist teeth, and is capable of achieving preferable occlusion function recovery. The maxillary expansion type occlusal pad is reasonable in design, is convenient to use, is suitable for patients at deciduous dentition and/or mixed dentition, and especially suitable for patients at deciduous dentition.

A mouthpiece for being worn on the upper dentition of a user includes electrodes and a microprocessor that operate as an electroencephalograph for detecting electrical activity in the user's brain. The mouthpiece may be useful in a variety of applications, such as athletics, gaming, and personal hobbies.

The invention relates to an admission passage pull-out guide plate on the palate side of an embedded tooth of an upper jaw and a manufacturing method thereof. The guide plate comprises a dentition supporting part, a guide bar and a positioning ring. The dentition supporting part is provided with a cavity matched with an upper dentition of a patient, the upper surface of the positioning ring is anarc-shaped curved face and is matched with the surface of the palate of the upper jaw bone of the patient in radian, the positioning ring is connected to the dentition supporting part through the guide bar, and the positioning ring corresponds to the position of a tooth extraction position of the embedded tooth to be pulled out. The manufacturing method comprises the following steps: reestablishing and matching the upper jaw bone and the upper dentition of the patient in a 1: 1 three-dimensional model; designing the dentition supporting part according to the upper dentition model; determiningthe tooth extraction point on the jaw of a CT reestablishing model of the upper jaw bone according to the position of the crown of the embedded tooth; designing the positioning ring according to the tooth extraction point and the surface radian of the jaw of the upper jaw bone model in the tooth extraction position; connecting the dentition supporting part and the positioning ring integrally through the guide bar; and carrying out 3D printing to obtain a finished product. The guide plate can position the tooth extraction position precisely and efficiently, so that the risk of damaging teeth isreduced.

The invention discloses a weight losing device and relates to the field of weight losing, in particular to a weight losing device. The weight losing device is characterized by comprising a fixing portion and a function portion. The function portion is located between an upper dentition and a lower dentition and used for separating or partially separating the upper dentition from the lower dentition. The fixing portion is connected with the function portion and arranged on teeth to fix the function portion connected with the fixing portion to the teeth. By arranging the barrier between the dentitions, the food chewing difficulty is increased or the chewing frequency is increased, so that the nutrition absorption amount is lowered, and the weight losing purpose is achieved; weight losing is achieved through a physical method, damage to the human body is small, dieting is not needed, food tasting is not affected for a user, the habit of eating food voraciously can be limited, the user can wear the device comfortably and conveniently and can insist on using the device easily, and successful weight losing can be achieved easily.

The invention provides a mandibular movement capturing system, a capturing method and a simulation method.The mandibular movement capturing system comprises a lower dentition visual marking device, an upper dentition visual marking device, a visual probe and a visual locator. The lower dentition visual marking device comprises a flexible fitting piece and a first visual marking piece; one side of the flexible fitting piece can be adhered to the outer surface of the lower dentition of the patient, and the other side of the flexible fitting piece is connected to the first visual marking piece. The upper dentition visual marking device comprises a marking supporting piece and a second visual marking piece installed on the marking supporting piece, and the marking supporting piece can be attached to the upper dentition of the patient or the craniofacial portion statically connected with the upper dentition. A third visual marking piece is mounted at the tail end of the visual probe. According to the mandibular movement capturing system, the accuracy of capturing and recording mandibular movement is improved, meanwhile, the operation convenience is improved, and the radiation dosage borne by a patient is reduced.

The invention relates to a child teeth cleaning simulator. The simulator comprises an upper dentition model, a mandibular dentition model, a toothbrush, holders, a rotary shaft, a base and an intelligent control system. The upper dentition model is connected with two holders, the mandibular dentition model is connected with two holders, and the four holders get together and are connected to the rotary shaft, the rotary shaft is connected with the base through another holder. A corresponding sensor is arranged in each unit module of the upper dentition model, and a corresponding sensor is arranged in each unit module of the mandibular dentition model. The intelligent control system is arranged in the base, and the toothbrush is connected with the dentition models and the intelligent control system through handle sensors. The upper dentition model and the mandibular dentition model are made according to a model of child teeth and can be freely disassembled. According to the simulator, a child can clearly see the constitutive structure of the child's own teeth, meanwhile, the tooth brushing posture of the child can be evaluated, and the child is helped to develop a scientific tooth brushing posture.

The invention discloses a CR plate. The CR plate comprises an upper tooth socket worn on an upper dentition, a lower tooth socket worn on a lower dentition and a positioning needle, wherein the positioning needle is located on the end surface of the section, close to the lower tooth socket, of the upper tooth socket, or the positioning needle is located on the end surface of the end, close to the upper tooth socket, of the lower tooth socket. The invention further discloses a manufacturing method of the repositioning occlusion plate. The manufacturing method comprises the following steps: step 1, taking an impression in the mouth of a patient; step 2, manufacturing a plaster model according to the impression; step 3, enabling the CR plate to be worn in the mouth of the patient, wherein the patient finds a treatment position and occludes an upper jaw and a lower jaw, a marking point is occluded on the upper tooth socket, the upper tooth socket is taken out of the mouth of the patient, a groove is dug in the marking point on the upper tooth socket, and the upper tooth socket is worn again after groove digging is completed; step 4, filling occlusion recording silica gel between the upper dentition and the lower dentition, and taking out the occlusion recording silica gel after the occlusion recording silica gel is solidified; and step 5, manufacturing a repositioning occlusion plate. According to the invention, the previously set treatment position can be accurately found when the occlusion recording silica gel is filled.

The invention discloses a method for integrated 3D printing of polyether-ether-ketone oral restorations with different colors. The method comprises the following steps: S1, acquiring the upper jaw andthe lower jaw of a patient, acquiring digital three-dimensional model data of the upper jaw and the lower jaw, and acquiring an upper dentition and lower dentition occlusion relationship and personalized tooth colors and gingival colors of the patient; S2, on the basis of the three-dimensional data in S1, designing a digital dental restoration and adjusting the occlusal contact relationship between the digital dental restoration and the jaw teeth to obtain a three-dimensional data model of the final restoration; S3, according to different tooth colors and gingival colors, separating the three-dimensional data model tooth of the restoration is separated from the gingival part to obtain printing data of different parts of the dental restoration body and importing the printing data into 3D printing equipment; and S4, respectively determining colors (tooth color and gingival color) of each part of the restoration, carrying out proportioning respectively, and conveying the date to two printing heads of the integrated 3D printing equipment, and carrying out integrated printing to obtain a final dental restoration material object.