76 results about "Molar" patented technology

The utility model discloses an orthodontic molar extension and remote movement device which comprises a pair of fixing blocks used for being fixed on the outer side walls of adjacent molars, the side walls, facing the gum, of the two fixing blocks are jointly connected with an elastic assembly, and the tail end of the elastic assembly is provided with a fixing assembly used for fixing the elastic assembly on the gum. The elastic assembly is a continuous bent metal wire, the metal wire is divided into two sides, the metal wire on each side comprises a fixing block connecting section connected to the side wall of the fixing block, the other end of each fixing block connecting section is connected with an elastic bent section, the other end of each elastic bent section is connected with a gum connecting section, and one ends of the gum connecting sections on the two sides are jointly connected with a lantern ring. According to the utility model, the stress supporting point of the extension and remote movement molar is adjusted to the gum, the adjacent molar is not influenced, the two molar can be adjusted at one time, and the orthodontic time can be greatly shortened and the orthodontic efficiency can be improved when the orthodontic appliance is combined with an invisible orthodontic appliance for common use.

The invention provides a bracket-free invisible orthodontic appliance with a lock catch structure and a preparation method of the bracket-free invisible orthodontic appliance, and belongs to the technical field of orthodontics. The bracket-free invisible orthodontic appliance comprises a bracket-free invisible orthodontic appliance; the extension wing is transversely arranged on the palate side between maxillary molars on the left side and the right side of the bracket-free invisible appliance or is connected with the edge of the cheek side of the invisible appliance; the extension wing comprises an implant anchorage nail buckle which is arranged on the surface of the palatal side area or the gingival area of the extension wing; and the implant anchorage nails are clamped with the buckles on the extension wings. A mechanical lock catch structure is formed between the bracket-free invisible orthodontic appliance and the implant anchorage nail through the extension wings with the implant anchorage nail buckles, so that the anchorage stability is improved, the adaptation range of bracket-free invisible orthodontic appliance is expanded, the use efficiency of the implant anchorage device is improved, and the clinical predictability of complex cases is improved. According to the preparation method, real-time design is carried out through digital parameter regulation and control, and a direct three-dimensional printing technology is preferably adopted, so that rapid customization and accurate application of the bracket-free invisible orthodontic appliance are realized.

The utility model discloses a dental tooth cleaning auxiliary mouth opening device with an anti-aspiration device, which is characterized in that two mouth opening components (a left mouth opening component and a right mouth opening component) are arranged, and the two mouth opening components are respectively arranged to be an upper mouth opening piece and a lower mouth opening piece of which the opening angle can be controlled through a damping hinge piece; according to the utility model, the upper opening assembly and the lower opening assembly are respectively provided with an upper bite groove and a lower bite groove, the two opening assemblies are respectively provided with an upper bite groove and a lower bite groove, and an anti-aspiration film for preventing aspiration is arranged between the two opening assemblies, is hung between the two opening assemblies and can abut against the tongue and the throat so as to prevent medicine from entering the throat during tooth cleaning and flushing; the upper end of the upper opening assembly and the lower end of the lower opening assembly are respectively provided with a bite groove (an upper bite groove and a lower bite groove); the two bite grooves are respectively and correspondingly occluded with big teeth of the upper jaw and the lower jaw, and the groove surfaces of the bite grooves are provided with the anti-slip lines, so that foreign body sensation during tooth occlusion is reduced, slippage of the mouth opening assembly during tooth cleaning is increased, and the tooth cleaning device is simple in overall structure and convenient to use.

The invention relates to the technical field of orthodontic tooth movement in animal experiments, in particular to a mouse orthodontic tooth movement model and a construction method thereof, and the mouse orthodontic tooth movement model comprises a traction assembly and an anchorage nail; the laboratory mouse is provided with a maxillary bone, second molar teeth growing on the maxillary bone and incisors growing on the maxillary bone, first molar teeth of the laboratory mouse are extracted, and an avoiding space is formed in front of the second molar teeth after the first molar teeth are extracted; the anchorage nail is connected to the maxillary bone and is positioned between the second molar and the incisors; the anchorage nail is fixed after being implanted into the maxillary bone, so that the position change of the traction assembly caused by connecting the traction assembly to the incisors can be avoided; the traction assembly is arranged between the second molar and the anchorage nail, the front end of the traction assembly is connected with the anchorage nail, the rear end of the traction assembly can penetrate through the avoiding space and is connected with the second molar, the second molar is used as an experimental moving tooth, and the movement rule of human clinical orthodontic teeth can be better simulated.

The invention relates to a cleaning apparatus, in particular for cleaning surfaces in the mouth, having at least one cleaning device for molars that can be guided over at least one jaw arch, and at least one cleaning device for incisors; wherein actuating devices for the movement of the cleaning devices are provided in the form of actuating rods which extend from the cleaning apparatus to the cleaning device, are extendable and retractable, and can be adjusted with regard to their lateral angle; wherein at least the at least one cleaning device for the molars has at least one clamping device which points toward at least one crown and is extendable and retractable, and is used to fix the cleaning device between two opposing jaw arches and to adjust the distance between the jaw arches.

The invention relates to a cleaning device, in particular for cleaning surfaces in the oral cavity, comprising at least one cleaning device for molars and at least one cleaning device for incisors, which can be guided over at least one dental arch, wherein actuating devices for the movement of the cleaning devices are provided in the form of actuating rods, which extend from the cleaning device to the cleaning device and are extendable and retractable and adjustable in lateral angle, wherein at least the at least one cleaning device for the molars has at least one extendable and retractable clamping device pointing towards at least one tooth crown, for fixing the cleaning device between two opposing dental arches and for adjusting a distance between the dental arches.

The utility model discloses an interactive cat toothbrush convenient to use, which comprises a handle, a groove body for placing snacks is embedded in one end of the handle, the interactive cat toothbrush further comprises a spring, a toothbrush handle and a toothbrush handle, the spring fixedly extends out of the inner side of the groove body and is parallel to the groove body, and a gap is reserved between the spring and the top of the groove body; the cleaning assembly slides in the middle of the handle and semi-wraps the groove body, and the cat holds the cleaning assembly to complete tooth cleaning treatment; wherein the cleaning assembly wraps a sliding assembly fixed in the middle of the handle, and one end of the sliding assembly extends out of a brushing assembly for cleaning cat teeth. The utility model belongs to the technical field of pet tooth cleaning, particularly relates to an interactive cat toothbrush convenient to use, and aims to at least solve the problems that cat teeth are difficult to clean and nurse and the cat is easy to be obese when eating too much tooth nursing snacks so as to influence health. And the condition that the traditional edible chewing toys are limited in molars cleaning is also overcome.

[Problem] To provide a novel technology that can be used to assist treatment such as orthodontic treatment. [Solution] This dental treatment assistance system comprises: a measurement point information acquisition unit that acquires measurement point information indicating a measurement point for orthodontic diagnosis on the basis of an image obtainable by X-ray imaging of the head of a subject, a magnetic resonance image of the head of the subject, or an image obtainable by computer tomographic imaging of the head of the subject; a position information acquisition unit that, on the basis of the head measurement point information, acquires position information during imaging indicating the positions of a front tooth, a molar or the jawbone of the subject during imaging; a planned position information acquisition unit that acquires planned position information indicating the position when it is assumed that the tooth or the jawbone is moved; and a movement information generation unit that, on the basis of the measurement point information, the position information during imaging, and the planned position information, generates movement information indicating a movement amount from the position before movement when it is assumed that the front tooth, the molar, or the jawbone is moved.

A tear-resistant chew toy for dogs and a method of making the toy. The toy includes a first and second similarly constructed panel assemblies, each of which includes a quilted fabric panel surrounded by a chew guard in the form of a webbing of ultra-high molecular weight polyethylene (UHMWPE) fabric. Overlapping portions of the chew guard are secured to the panel by a zig-zagging stitch pattern formed of UHMWPE thread. The individual stitches of the pattern extend at an acute angle to a radius of the fabric panel and generally parallel to the direction that dogs use their back molar teeth to gnaw on a chew guard. The panel assemblies are secured together by a stitch line also formed of UHMWPE thread to form an internal chamber in which a soft resilient stuffing and an audible squeaker are located.

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.

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 present invention relates to an orthodontic appliance (1) adapted to fit the maxilla of a patient comprising A) at least one central retractor (2) incorporating an expansion screw (4) allowing its retraction and that, consequently, of the maxillary arch (MA) of the patient, which central retractor (2) is integral with: A1) A first symmetrical pair of posterior retention arms (5), each retention arm (5) being coupled to a ring (3) of a first pair of rings (3) allowing the fixation of the appliance (1) on the right and left permanent molars of the maxillary arch (MA) of the patient, at least one of the rings (3) also constituting the distal element of a distalization assembly (12) comprising at least two elements, A2) At least one symmetrical pair of anterior retention arms (8) which bears against the palatal surface of teeth anterior to the right and left molars to which the first pair of rings (3) are fixed right and left;A3) A second symmetrical pair of posterior retention arms (6), each retention arm (6) being formed of two distinct segments with a first segment coupled to a ring (3) of the first pair of rings (3) and a second segment coupled to the central spreader (2), which first and second segments are associated by a joint (7).

1. The name of this design product: Teething Stick (Sichuan Peppercorn). 2. Purpose of this design product: A molar stick used for molars in infants and young children during the early stages of tooth growth. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

1. Name of the product in this design: Teething stick (bone shape). 2. Purpose of this design: for pets to chew on and play with. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention discloses a gingival protection device for intermaxillary traction after orthognathic surgery, along with its manufacturing and usage methods. The device is a gingival protection bracket worn on the maxillary dentition, comprising a labial / buccal cover, a palatal cover, a blocking portion, and a connecting bridge. The labial / buccal cover conforms to the highest point of the tooth crown, while the palatal cover conforms to the entire palatal surface of the tooth crown, positioned between the intermaxillary traction rubber band and the gingival soft tissue. The blocking portion forms a protruding structure along the dentition direction on the labial side of the anterior teeth, mechanically limiting the intermaxillary traction rubber band during intermaxillary traction. The connecting bridge connects the labial / buccal cover and the palatal cover together in the posterior molar region on both sides. This device effectively blocks the direct action of the traction rubber band on the gingival soft tissue without affecting postoperative occlusal adjustment, improving posterior traction and occlusal stability and comfort, and aiding in rapid patient recovery. Furthermore, it balances wearing stability with the convenience of patient self-disposal.

The invention relates to a shell-shaped dental appliance for correcting rear teeth and a design method of the shell-shaped dental appliance. The appliance comprises a first segment shell unit, a traction structure and a second segment shell unit, the first segment shell unit and the traction structure form a first tooth receiving cavity, and the second segment shell unit forms a second tooth receiving cavity; the first segment shell unit can accommodate canine teeth or premolar teeth of a patient, and the traction structure is fixedly connected with the first segment shell unit; the traction structure is used for hanging elastomers; the second segment shell unit can accommodate another premolar or molar of the patient, and the second tooth receiving cavity applies a second tooth moving force to the accommodated tooth; the second segment shell unit applies a second tooth moving force to the accommodated teeth; and the first segment shell unit is connected with the elastic body through a traction structure. Compared with the prior art, the orthodontic force is accurately controlled; personalized design is realized; and the stability and controllability of the treatment effect are improved.

This invention provides a dental treatment support system, comprising: a measurement point information acquisition unit that acquires measurement point information representing measurement points for orthodontic diagnosis based on images obtained from X-ray imaging of a subject's head, magnetic resonance imaging of a subject's head, or computed tomography imaging of a subject's head; a position information acquisition unit that acquires imaging position information representing the position of the subject's anterior teeth, molars, or jawbone at the time of imaging based on the head measurement point information; a planning position information acquisition unit that acquires planning position information representing the planned position of the teeth or jawbone to be moved; and a movement information generation unit that generates movement information representing the amount of movement of the planned anterior teeth, molars, or jawbone to be moved from the position before movement, based on the measurement point information, the imaging position information, and the planning position information. This invention provides a more efficient and effective process in orthodontic treatment.

The invention relates to a cleaning device, in particular for cleaning surfaces in the oral cavity, comprising at least one cleaning device for molars and at least one cleaning device for incisors, which can be guided over at least one jaw arch, wherein at least one extendable and retractable biting device is provided, for arrangement between two opposing jaw arches and for adjusting a distance between the jaw arches.

The present invention belongs to the field of medical operation training methods, and specifically relates to a practical training operation method for pushing molars backward to prevent tooth protrusion. The method comprises the following steps: making a sequence model of deformed teeth, combining orthodontic brackets and custom arch wires to take a first stage of treatment, and then replacing the arch wire to carry out a second stage of treatment, thereby improving the clinical operation level of medical personnel and solving the technical problem that doctors in the prior art lack proficient techniques for pushing molars backwards, which can lead to anterior tooth protrusion, and have no targeted practical training.

A distalizer appliance is provided. The distalizer appliance uses a molar bracket, a bicuspid bracket, and a rod. A spring is secured between an end of the rod and a fastener secured on a jaw of a patient. The molar bracket and the bicuspid bracket are secured to a molar and a bicuspid, via bonding pads. The molar bracket acts as a fulcrum for the rod in order to drive the molar distally and the bicuspid bracket acts to guide the rod.

The utility model discloses an improved invisible orthodontic appliance for recovering an edentulous space, which relates to the technical field of orthodontics, and comprises an invisible tooth socket, false teeth are arranged in the invisible tooth socket, a push spring is pre-embedded on the false teeth, a cavity is arranged at the distal middle tail end of the invisible tooth socket, and the cavity is communicated with the cavity. According to the technical scheme provided by the utility model, the push spring is arranged to assist in enlarging the gap and the cavitation bubble for moving the molar is arranged at the tail end of the tooth socket, so that correction devices in the mouth of a patient are reduced, the aesthetic property of the teeth of the patient in the correction process is improved, the chair-side operation time of medical personnel is shortened, and the comfort is improved; the bracket-free invisible appliance wraps all teeth on the mesial side of an odontoprisis gap, so as to form an integral anchorage for pushing molar teeth backwards; and through the arrangement of the accessories of the adjacent teeth, the unexpected torsion inclination of the adjacent teeth is reduced, the adjacent teeth are aligned in an auxiliary manner, and a good adjacency relation can be formed after tooth missing repair is completed in the later period.

This application relates to the field of orthodontic appliances and discloses a multifunctional orthodontic traction device, including a self-ligating bracket for fixing and limiting the archwire. The top of the self-ligating bracket is equipped with an elastic closing hook, and a traction structure for orthodontic traction is hooked to the inner side of the elastic closing hook. A combined bracket for adhesive fixation to the posterior teeth is fixedly connected to one side of the traction structure. By using the self-ligating bracket and the combined bracket in conjunction with other brackets and archwires, the device achieves tooth positioning correction. The traction structure, installed between the self-ligating bracket and the combined bracket, generates horizontal tension, thereby performing Class II orthodontic traction on the teeth, achieving horizontal traction. Simultaneously, while the traction structure generates horizontal tension, a downward pressure structure converts part of the force into downward pressure on the molars, thus achieving molar indentation control. This device increases its usability through the integration of multiple functions and improves the efficiency of orthodontic treatment.

The invention provides an upper jaw mesial inclined molar centralizing device which is characterized in that a palate support (1) is connected with a bow arm (2), two end parts of the bow arm (2) are respectively connected with at least one anchorage tooth lantern ring (3), the end part of the bow arm (2) on one side of an inclined molar (4) extends to form an extension section (2a), the extension section (2a) is positioned on the outer side of the inclined molar (4), and the tail end of the extension section (2a) is provided with an S-shaped hook head part (5). A group of hook parts (6) are also arranged on the extension section (2a); and an elastic traction belt (7) which is hooked with any tongue side buckle (4a) on the inclined molar (4) is hooked on the hook parts (6) or the hook head parts (5). The device has the advantages of being simple in structure, convenient to use, adjustable in traction angle and force value, definite in curative effect, high in comfort degree, free of cooperation of patients and the like.

The invention discloses an accessory adjusting method and device of an orthodontic appliance, electronic equipment and a computer readable storage medium. The method comprises the following steps: identifying a rotation reference point of a lower jawbone of a user and a current position of a target tooth of the user; determining a first rotation radius of the target tooth according to the current position and the lower jawbone rotation reference point; the standard thickness of the orthodontic appliance is obtained, and the lower jawbone rotation angle of the user is determined according to the first rotation radius and the standard thickness; according to the rotation angle of the lower jawbone, the correction amount of the orthodontic appliance on to-be-adjusted teeth is determined, and the to-be-adjusted teeth are teeth except the target teeth in the oral cavity of the user; the height of the accessory corresponding to the tooth to be adjusted is adjusted based on the orthodontic amount, so that the accessory height of the orthodontic appliance is matched with the orthodontic amount, passive lowering of the second molar due to point contact can be prevented, occlusion alignment of the upper jaw and the lower jaw is improved, and stable occlusion contact of the teeth of the upper jaw and the lower jaw in the process of wearing the orthodontic appliance is ensured.

The utility model relates to a veneering tooth preparation guide plate, which belongs to the technical field of tooth restoration, and is characterized in that a molar guide plate is fixedly connected between a pair of positioning tooth sockets through a connecting piece so as to be matched with a dentist to quickly perform molar treatment in the veneering tooth preparation process, and the positioning tooth sockets are sleeved on teeth on two sides of veneering teeth; according to the tooth grinding device, the tooth grinding guide plate is conveniently fixed to the top or the front side of the veneering tooth, then the tooth grinding device is guided through the guide groove in the tooth grinding guide plate, the technical requirement for tooth grinding is effectively lowered, hurt to a patient due to tooth grinding operation errors is avoided, and meanwhile the tooth grinding device is convenient to use. And the tooth grinding condition of the veneering tooth can be observed in real time by utilizing the operation window formed on the connecting piece, so that a dentist can quickly grind the tooth, and the tooth grinding efficiency is improved.

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.

A jaw displacement system for moving a lower jaw (5) relative to an upper jaw (6), comprising:-at least one bone anchor (7),-an elongate jaw shifter (8),-a frame (9) wherein the jaw displacement system permits the application of pressure between the frame (9) and the bone anchor (7) in order to displace the jaw (5) when the frame (9) is fixed to a molar (19) and when the bone anchor (7) is fixed to the bone of the lower jaw (5) on the buccal-labial side. The lower jaw (5) is moved to the ventral side with respect to the upper jaw (6).

The utility model relates to the technical field of orthodontics, and discloses an auxiliary device for orthodontics, which comprises an orthodontics dental crown, an auxiliary dental crown, a personalized traction bow, a traction rubber chain and a traction tongue side buckle, one side of the orthodontics dental crown is fixedly connected with the auxiliary dental crown, and one side of the orthodontics dental crown far away from the auxiliary dental crown is fixedly connected with the personalized traction bow. According to the utility model, the local orthodontic device is designed and used only aiming at a tooth area needing to be corrected, so that the influence of a traditional orthodontic device on the whole oral cavity is avoided, the discomfort caused by hitting an anchorage nail traction device and adhering a bracket arch wire to the whole mouth is avoided, and molar teeth and inclined and displaced teeth of individual teeth can be dragged; meanwhile, through accurate design and customization, the device can pull near, far and middle inclined tooth positions and repair the function of extending the missing teeth to the jaw teeth, and has the characteristics of rapidness, high efficiency and small foreign body sensation.

The utility model relates to a deciduous molar bracket suitable for a tooth replacement period, which belongs to the technical field of medical instruments and comprises a bottom plate, an inverted T-shaped groove is arranged on one side of the bottom plate close to a gingival side, and the upper half part of the inverted T-shaped groove is a rail groove extending from the bracket to a deciduous molar crown gingival side; the bracket body comprises a first connecting part, a first connecting column and a supporting plate which are sequentially connected, the first connecting part is located in the inverted-T-shaped groove and can slide and rotate in the inverted-T-shaped groove, the bracket body is further provided with a threaded hole sequentially penetrating through the first connecting part, the first connecting column and the supporting plate, a bolt is arranged in the threaded hole, and the bracket body and the bottom plate can be locked by rotating the bolt. According to the deciduous molar tooth bracket suitable for the tooth replacement period, the first connecting part of the bracket body of the bracket is positioned in the inverted T-shaped groove of the bottom plate and can slide and rotate in the groove towards the deciduous molar crown gingival direction, so that the bracket body can flexibly adjust the gingival direction position height and the inclination angle according to the actual requirements of orthodontics.