137 results about "Molar" patented technology

The utility model provides a bite block device for nerve electrophysiology monitoring in an operation, which comprises a lower bite block and an upper bite block, a channel groove for installing a trachea channel is arranged in the lower bite block, and lining plates are oppositely arranged on two sides of the channel groove in the lower bite block; the lower surface of the lower bite block is provided with a lower tooth groove, and the upper surface of the upper bite block is provided with an upper tooth groove. Through the arrangement of the base plate, the upper tooth cushion and the lower tooth cushion can be in full contact with molar teeth in the cavity, so that the pressure borne by incisor teeth is reduced, and the incisor teeth of a patient are prevented from being damaged; the trachea channel is arranged in the middle of the bite block, the inner lining plate is arranged on the outer side of the trachea channel, under protection of the inner lining plate, the trachea can be prevented from being bitten by a patient to be flat, normal use of the trachea is guaranteed, the trachea channel has a certain length and is arranged in the middle of the bite block, and after the whole bite block is arranged in the oral cavity of the patient, the inner trachea channel can press the tongue. The tongue is prevented from entering the space between the upper teeth and the lower teeth and is prevented from being bitten.

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 the subsequent retraction 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 appliance (1) to be fixed to 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).

The invention provides a manganese-zinc ferrite material and a preparation method thereof, the manganese-zinc ferrite material comprises a main component and an auxiliary component, the main component comprises the following components by mole ratio: 45-50 mol% of Fe2O3, 11.5-17.5 mol% of ZnO, and 32.5-43.5 mol% of MnO; according to the total weight of the main components, the auxiliary components comprise the following components in parts by weight: 200 to 2000 ppm of CaCO3, 200 to 2000 ppm of Bi2O3, 200 to 20000 ppm of Co2O3 and 200 to 20000 ppm of NiO, and the auxiliary components do not comprise SnO2, TiO2, CuO and Nb2O5. Due to the specific main formula range and the auxiliary component range, the obtained manganese-zinc ferrite material has high initial permeability, high Curie temperature, high frequency and high impedance.

The utility model discloses a teether for infants, and relates to the technical field of teethers for infants. The infant tooth grinding device comprises a circular ring and a tooth grinding assembly, a connector is fixedly installed on the outer wall of the circular ring, the tooth grinding assembly is arranged on the connector, two sets of tooth grinding bodies are fixedly installed on the outer wall of the connector, and the particle massage protruding points are fixedly installed on the outer walls of the tooth grinding bodies. And annular stripes are fixedly mounted on the outer walls of one group of tooth grinding bodies. The tooth grinding bodies, the particle massage salient points and the annular stripes are matched for use, the length of the tooth grinding bodies is proper, a child can be prevented from retching during use, meanwhile, the two tooth grinding bodies are located at different angles, the gum of the child can be massaged in a multi-angle mode, the particle massage salient points on the tooth grinding bodies can effectively stimulate the gum of the child, and the tooth grinding effect is good. Soft and effective massage is provided, itching pain and swelling of gingiva can be relieved, and annular stripes on the molar body can prevent buckteeth.

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 relates to a device for cleaning in the oral cavity, wherein the device has a housing for receiving a movement device and also a bite piece projecting from the housing, which has a device for biting down on at least one incisor of an upper and lower jaw for fixing the device to the oral cavity, wherein at least one shuttle for cleaning molars and at least one shuttle for cleaning incisors is provided, wherein each shuttle is designed to grasp a jawbone area and has filaments or filament bundles pointing towards a surface to be cleaned, wherein the shuttles are mechanically coupled to the movement device in such a way that the shuttles are at least displaceable along a predetermined area of ​​a jawbone, and the use of the device.

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.

A main arch wire is fixed on at least two other teeth on one side of an impacted molar through a fixing piece, a round tube is fixed on the impacted molar, the round tube is fixedly connected with one end of a steel wire, the steel wire is bent, the other end of the steel wire is provided with a hook, the hook is fixed on the main arch wire, and the other end of the steel wire is provided with a connecting rod. And the steel wire applies a force for strengthening the teeth to the circular tube. According to the device, centralizing of the mesial impacted molar and mesial moving of adjacent teeth beside the impacted molar are conducted at the same time, the interactive anchorage concept is utilized, anchorage is greatly saved, all force is applied to a dental arch, the device is simple in structure, easy to manufacture and safe in material, the comfort level of a patient is improved, the operation time beside a chair is shortened, and the treatment period is shortened.

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.

Disclosed are apparatuses and techniques for distalizing, mesializing and / or expanding teeth in the upper or lower dental arch of a patient's mouth to make room for crowded or protruded teeth located in the anterior arch region to distally / mesially and / or laterally shift into. In some aspects, an apparatus includes a body; a first arm coupled to an adjustment mechanism of the body and attachable to a molar; a second arm coupled to the apparatus body and attachable to a non-molar tooth; and an anchorage device attachable to a bone in the mouth, which the first arm is configured to transfer a force onto the molar when the adjustment mechanism is actuated to cause movement of the molar in the dental arch, and which the anchorage device is operable to positionally stabilize the body and the second arm to prevent movement of the non-molar tooth in the dental arch.

The present invention relates to the technical field of orthodontic appliance injection molding, and specifically discloses an orthodontic appliance injection molding device, comprising a machine body, a lifting mechanism, an upper feeding mechanism and a lower feeding mechanism, wherein the upper injection molding mechanism is installed on the lifting mechanism, and the lower injection molding mechanism is installed on the machine body, the upper injection molding mechanism comprises an upper mold and two groups of blocking components slidably connected in the upper mold, an upper mold cavity is provided on the upper mold, and storage grooves are provided at both ends of the upper mold cavity; the orthodontic appliance injection molding device of the present invention adds soft material into the upper mold cavity through the upper feeding mechanism and flows into the lower mold cavity, and adds hard material into the isolation frame through the lower feeding mechanism, so as to add materials of different hardness to different parts of the workpiece, so that the soft and hard materials in the workpiece can be tightly connected together, thereby ensuring the connection strength of the soft and hard materials in the workpiece, and the workpiece after injection molding can also avoid damage or deformation of the molar part of the workpiece.

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.

1. The name of the product of this design: teething chain. 2. Purpose of the product of this design: teether for infants to grind their teeth. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: Design 2 Stereoscopic Figure 1. 5. The key design points of the top and bottom views of Design 1 to Design 4 are fully displayed in the submitted views, and the top and bottom views of Design 1 to Design 4 are omitted. 6. Designate Design 2 as the base design.

The utility model discloses a long-arm vertical molar buccal tube which comprises a bracket and a buccal tube body, the two sides of the buccal tube body are connected with the bracket and an L-shaped first traction arm respectively, and the tail end of the first traction arm is connected with a second traction arm parallel to the buccal tube body. And the tail ends of the first traction arm and the second traction arm are respectively provided with a first traction hook and a second traction hook. According to the utility model, the adjustable force application point design is adopted, forces in different directions are applied to the molar through the control supporting point, the vertical movement of the root can be controlled, the overall parallel movement can also be carried out, and the three-dimensional accurate control of the molar can be realized through the combined use, so that the treatment requirements of different patients can be met; and the possibility of personalized design and adjustment is provided for the patient.

The utility model relates to the technical field of medical instruments, in particular to an orthodontic appliance for pushing molar backwards, which comprises a traction wire, a plurality of stop blocks, a correction unit and two traction components, each traction component comprises a connecting wire, a lantern ring, a shell, a spring and a circular ring, the connecting wire is arranged above the correction unit, the lantern ring is fixedly connected with the connecting wire, and the shell is arranged above the connecting wire. The pull wire penetrates through the lantern ring, the shell and the check blocks, the shell is fixedly connected with the lantern ring, the pull wire is fixedly sleeved with the circular ring, and the two ends of the spring are fixedly connected with the inner wall of the shell and the circular ring respectively. The plurality of stop dogs are respectively attached to the labial muscle, and then the traction wire is always pulled backwards under the elastic action of the spring, so that counter-acting force and counter-acting force are applied, the plurality of stop dogs always keep counter-acting force with the labial muscle, anterior teeth are prevented from inclining towards the lip side, the spring is wrapped by the shell, and the situation that the anterior teeth incline towards the lip side when the spring stretches out and draws back is prevented. And when the spring clamps lip muscles in the oral cavity, the user is injured.

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.

To disclose a novel oral muscle training device for children.SOLUTION: An oral muscle training device for children includes an outer baffle and an inner baffle which are integrally formed, an upper occlusion groove into which the upper lip or the upper teeth of the child can be placed is provided between the upper end portion of the inner baffle and the upper end portion of the outer baffle, a lower occlusion groove into which the lower lip or the lower teeth of the child can be placed is provided between the lower end portion of the inner baffle and the lower end portion of the outer baffle, a chamber is formed at the center between the outer baffle and the inner baffle, the inner baffle is annular, and at central portions on both sides of the annular inner baffle, molar training bridges each matched in shape and size to molars on each side and configured to be fitted to the molars on each side after occlusion are integrally formed respectively. According to this invention, a molar training area is added, as well as the overall development of oral muscle functions of children is greatly improved and the quality of life is enhanced.SELECTED DRAWING: Figure 1

Methods for providing results of orthodontic realignment simulations comprising: obtaining three-dimensional virtual models of dental arches, the models compiled from intraoral scans of a mouth; based on the shapes of the modeled dental arches, selecting matching predefined archforms; obtaining at least one of: a first set of rules that define anterior and posterior molar movement, a second set of rules that determine a path of tooth movement to the matching predefined archforms, or a third set of rules that define simulation mechanics for moving at least one tooth to a final position based on known endpoint data and the matching predefined archforms; and based on results from implementing at least one set of rules, determining final positions of the teeth in relation to the matching predefined archforms.

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 an implant scanning body kit for improving oral cavity scanning accuracy, comprising a base part substantially combined with an implant fixing device, a body part connected to the upper part of the base part, and a head part (10) connected to the body part and forming a scanning feature part, characterized in that the scanning body for the tooth cutting part is formed by a plurality of tooth cutting parts, the head part (10) consists of a first cap body and a supporting part; according to the scanning body for the canine tooth part, a head part (10) is composed of a second cap body (200) and a supporting part; according to the scanning body for the small molar tooth part, a head part (10) is composed of a third cap body (300) and a supporting part; according to the scanning body for the molar tooth part, the head part (10) is composed of a fourth cap body (400) and a supporting part.