24 results about "Gaps between teeth" patented technology

The utility model belongs to the technical field of rubber dam cloth, specifically relates to a rubber dam cloth with clip, including rubber dam cloth body and rubber dam clip, the middle position of rubber dam cloth body is equipped with tooth placing gap for placing tooth, the part of rubber dam cloth body on the peripheral side of tooth placing gap is barrier cloth turn -up portion, two end parts of rubber dam clip are clip clamping parts, two clip clamping parts and barrier cloth turn -up portion fixed connection, the material of rubber dam clip and clip clamping part is plastic, stainless steel, nickel titanium alloy, silica gel, silicon rubber or synthetic resin, the fixed connection of clip contact block has in clip clamping part, and clip contact block and barrier cloth turn -up portion fixed connection. The utility model can reduce the gap between tooth and rubber dam cloth, reduce the phenomenon that medicine passes through gap and flows into the inside of mouth cavity.

The invention relates to oral cavity cleaning equipment which comprises a shell assembly, a liquid conveying mechanism and a cleaning mechanism, the liquid conveying mechanism comprises a liquid pump arranged on the shell assembly and a flow guide pipe connected to the liquid pump, and the cleaning mechanism comprises a grab handle, a driving assembly arranged on the grab handle and a cleaning assembly in linkage with the output end of the driving assembly. The cleaning assembly communicates with the flow guide pipe and is used for stretching into the oral cavity of a user. In the process of using the oral cavity cleaning equipment, a user can stretch the cleaning assembly of the cleaning mechanism into the oral cavity, the oral cavity cleaning equipment is started, and tooth cleaning fluid (such as mixed liquid of water and toothpaste) can be conveyed into the oral cavity of the user from the cleaning assembly through the liquid pump and the flow guide pipe of the liquid conveying mechanism; the driving assembly of the cleaning mechanism drives the cleaning assembly to reciprocate in the oral cavity, so that the tooth surfaces and the gaps between the adjacent teeth can be cleaned, the automation degree of oral cavity cleaning is improved, the operation process of oral cavity cleaning is simplified, and the oral cavity cleaning efficiency is improved.

A pipe for mouth breath having two portions: inner portion and out portion, at least one hole disposed on the wall of the inner portion, the pipe is open ends, while in use, the pipe been placed in user's mouth between teeth and cheek, the out portion passed through lips and open to air. Inhaling: air is taken into the out portion, gets out of the inner portion, passed through gaps between teeth and into mouth chamber. Exhaling: air gets out of mouth by reversed process of inhaling. Also, the pipe can made into “U” shaped, two ends of the pipe became inner portions, at least one short pipe attached on the middle portion, or the middle portion been enlarged for air gets in and out of mouth or cut to open between inner portion and middle portion, the inner portion can be extended long enough to push middle portion out of mouth and open to air. Also again, a dental retainer may be used, middle of one pipe joined one end of the dental retainer, middle of another pipe joined another end of the dental retainer, the low part of the dental retainer may be deviated and forwarded from the up part for special use.

The invention discloses a hydrodynamic telescopic vibration nozzle of an oral irrigator, which belongs to the technical field of oral cavity cleaning and comprises a water stop switch, a water inlet pipe, a water outlet pipe, a water inlet pipe and a water outlet pipe, and notches are formed in the upper surface and the lower surface of the water stop switch; a through hole is formed in the brush rod; according to the water pump, the spring and the water stop plug are arranged, the spring is installed in the water stop switch, when the piston of the pump body sucks water, the spring exerts force on water in a water way, the piston preferentially sucks the water in the water way, the force is transmitted to the brush head through the water, and therefore the water with the same volume is pumped out and sucked in, reciprocating circulation is formed, and stretching and retracting are achieved; the nozzle performs high-frequency telescopic vibration to brush teeth, residues in slits between the teeth can be cleaned by turning on a nozzle switch, synchronous operation of tooth brushing and tooth washing is achieved, tooth brushing efficiency and cleaning power are improved, and therefore the practicability of the toothbrush tooth washing device nozzle is improved. As the water tank is arranged on the toothbrush, ointment foam generated in the tooth brushing process can be cleaned more conveniently.

A periodontal probe is provided. The probe includes an elongate rod having a distal tip and a proximal handle portion. The distal tip is sufficiently narrow to be able to be inserted into a space between a patient's gum and tooth. The handle portion includes electronics configured to receive and transmit data obtained from the tip.

The invention discloses a sweeping and vibrating electric toothbrush which comprises an instruction receiving module, a driving module, an execution module, a control module and a toothbrush head module. The instruction receiving module is used for receiving a toothbrush control instruction to determine a working mode and sending the working mode to the control module in a mode signal form; the execution module is used for sending rotor real-time position information and current data to the control module; the control module is used for receiving the mode signal, setting a sweep vibration parameter according to the mode signal, receiving real-time position information and current data of the rotor at the same time, generating a driving signal based on the sweep vibration parameter, the real-time position information and the current data of the rotor, and sending the driving signal to the driving module; the driving module is used for receiving the driving signal and carrying out voltage control on the execution module based on the driving signal and the sweep vibration threshold value, so that the sweep vibration parameter reaches the sweep vibration threshold value; and the execution module is fixedly connected with the toothbrush head module. The toothbrush provided by the invention can cover the occlusal surfaces of teeth, slits between the teeth and other areas, remove dental plaque residues and maintain tooth health.

The invention relates to the technical field of dentistry, and discloses a deciduous tooth extraction device which comprises a handle and a clamping mechanism installed at one end of the handle, the clamping mechanism comprises two clamping blocks and a driving part used for driving the two clamping blocks oppositely or separately, and pressure sensors are arranged on the two clamping blocks; at least two groups of binding ropes for binding the side edges of the deciduous teeth are connected between the interiors of the two clamping blocks. According to the deciduous tooth extraction device, the two clamping blocks can be driven to clamp and fix the inner side and the outer side of a deciduous tooth through the driving piece, the at least two groups of binding ropes can be synchronously driven to tighten, the two clamping blocks can be matched to wrap and fix the tooth in all directions through the contraction of the at least two groups of binding ropes, and the deciduous tooth extraction device has a multi-layer fastening function; and by arranging two clamping blocks, a worker can conveniently and better insert a binding rope into a gap between teeth, so that the operation convenience is further improved.

To solve the problem in which composite resins have conventionally been a kind of simplified restorative material; that is, they are soft and have low strength, making them inconvenient to use for restoring areas that span gaps between teeth.SOLUTION: A composite resin 2 is packed into a cavity 10 formed by removing a diseased portion from the occlusal surface of a molar 1. This composite resin 2 contains approximately 50 wt.% of nanodiamond particles 3 of industrial diamond, having an average particle diameter of 100 nm, dispersed therein. These nanodiamond particles 3 can act as nanodiamond catalysts.SELECTED DRAWING: Figure 1

The invention discloses toothpaste with double stain-removing factors and a preparation process of the toothpaste, and relates to the field of toothpaste. Comprising a humectant, a preservative, an aromatic, a friction agent, a cleaning agent, a freshener, a solvent, a sweetening agent, a stabilizer, a thickening agent and a coloring agent, wherein the aromatic is essence; the solvent is water; the sweetening agent is saccharin sodium salt; the stabilizer is tetrasodium pyrophosphate; the coloring agent is powdered carbon. Through the raw materials in scientific proportion and the fine preparation process, stains on the surfaces of teeth are efficiently removed, and meanwhile the surfaces of the teeth are protected against damage. The stain remover and the abrasive in the toothpaste have a synergistic effect, so that the toothpaste can go deep into tooth gaps and tiny concave-convex parts on the surface, and stubborn stains are effectively removed. In addition, the toothpaste further has good taste and fresh breath, and the use experience of a user is improved.

The embodiment of the utility model relates to the technical field of orthodontics, and discloses a shell-shaped orthodontic appliance. The shell-shaped dental appliance comprises a shell-shaped body worn on the dentition of a patient, and the shell-shaped body comprises a first section with a plurality of tooth accommodating cavities. The first section comprises a first tooth storage cavity wrapping teeth to be moved, a second tooth storage cavity wrapping teeth on one side of the teeth to be moved, and a transition cavity communicating the first tooth storage cavity with the second tooth storage cavity. And the transition cavity is arranged corresponding to a gap between the to-be-moved tooth and one side tooth of the to-be-moved tooth. The transition cavity comprises a first connecting part connected with the first tooth accommodating cavity and a second connecting part connected with the second tooth accommodating cavity, and the first connecting part and the second connecting part are oppositely arranged in the mesiodistal direction. The shell-shaped tooth appliance provided by the embodiment of the utility model can be beneficial to improving the moving efficiency of teeth of a patient.

The invention discloses a toothbrush with bent bristles and a preparation method thereof.The toothbrush comprises a brush handle and a brush head, the brush head is connected to one end of the brush handle, and a plurality of bristle bundles are arranged on the brush head; the bristles in the bristle bundle are divided into two sides, and the tops of the bristles on the two sides are bent towards the middle to form a bent structure gathering towards the middle. Therefore, the bristles on the two sides of the bristle bundle are bent towards the middle to form a gathering structure, the fitting degree of tooth slits, gingival sulcus and other parts is enhanced, the cleaning efficiency is improved, dirt and bacterial residues are reduced, the bending angle of 30-60 degrees and soft and elastic materials are matched, the cleaning effect is guaranteed, gingival stimulation damage is reduced, and the toothbrush is particularly suitable for crowds sensitive to gingiva.

The invention discloses an anti-skid tire-clamping-prevention multidirectional displacement comb plate telescopic device which comprises two oppositely-arranged comb plates, each comb plate is provided with a plurality of comb tooth strips arranged at intervals, a comb tooth gap is formed between every two comb tooth strips, and the comb tooth gaps are communicated with the comb tooth strips. Each comb tooth bar comprises a fixed tooth bar and a wave tooth bar, the tooth roots of the fixed tooth bars are installed on the comb tooth plates, the tooth roots of the wave tooth bars are in butt joint with the tooth tips of the fixed tooth bars, and the comb tooth bars on the two comb tooth plates are mutually inserted into the comb tooth gaps of the two comb tooth plates. The tooth tips of the wave racks are in butt joint with the roots of the corresponding comb tooth gaps. The problems that when a non-motor vehicle passes through a comb plate telescopic device, wheels are prone to being clamped into a gap of a toothed plate, and driving safety is caused are solved.

The invention discloses a cavitation jet oral irrigator which comprises an oral irrigator body, a water storage tank, an electric water pump, a rechargeable battery and a cavitation jet nozzle, a containing groove is formed in the side wall of the lower end of the oral irrigator body, the water storage tank is detachably embedded in the containing groove, and the electric water pump and the rechargeable battery are arranged in the oral irrigator body. The cavitation jet nozzle is detachably arranged at the upper end of the oral irrigator body, a water inlet of the electric water pump is communicated with the water storage tank, a water outlet of the electric water pump is communicated with the cavitation jet nozzle, a key and a charging interface are arranged on the peripheral wall of the oral irrigator body, and the rechargeable battery is electrically connected with the electric water pump, the key and the charging interface. The cavitation jet nozzle comprises a jet channel, a resonant cavity, a cavitation chamber and a nozzle which are sequentially communicated from bottom to top. According to the technical scheme, stubborn stains on the surfaces of teeth and in slits between the teeth can be more effectively removed, and compared with a traditional jet-flow oral irrigator, the oral irrigating experience is better, the strength is milder, and gingival bleeding cannot be caused.

Methods for detecting missing or ectopic teeth. At least one tooth that is missing or ectopic may be detected in a dental arch by determining that a gap between adjacent teeth of a digital model of the dental arch exceeds a gap threshold. At least one tooth of the dental arch may be determined to be ectopic by performing an ectopic analysis of a region of the digital model of the dental arch above or below the gap. Anatomical identifiers may be assigned to the teeth of the digital model of the dental arch to account for the at least one tooth that is missing or ectopic. An orthodontic treatment plan to reposition one or more teeth of the dental arch using the assigned anatomical identifiers of the teeth of the digital model of the dental arch may be created.

This utility model provides a tiger whisker-shaped toothpick, relating to the field of toothpick technology, which solves the problem that existing toothpicks have smooth surfaces, making them inconvenient for removing foreign objects from teeth. The toothpick includes a toothpick assembly comprising a shaft, a head, and a silicone threaded strip. The head is fixedly connected to the bottom of the shaft, and both the shaft and the head are provided with silicone threaded strips. The shaft, head, and silicone threaded strip form a shape resembling tiger whiskers. One side of the silicone threaded strip has an irregular serrated shape. With the help of this toothpick assembly, foreign objects in the gaps between teeth are easily removed, reducing damage to the gums and preventing the possibility of disease transmission.

The invention discloses a single-row continuous push disc cleaning machine before carburizing heat treatment, a production line and a treatment method. The single-row continuous push disc cleaning machine comprises a transversely-arranged base plate, and a gear righting part, a gear cleaning part and a gear drying part are sequentially distributed on the base plate; the gear cleaning part comprises a gear conveying assembly, a gear cleaning assembly and a gear rinsing assembly; the gear cleaning assembly comprises a brushing assembly and a flushing assembly and is used for cleaning the surface of a gear in a brushing mode and a flushing mode. A combined cleaning mode of brushing and washing is adopted, wherein a brushing assembly can penetrate into gaps between teeth, tooth roots and the like through physical contact, and stubborn oil stains and attached impurities are directly stripped; the washing assembly further washes the loosened impurities through high-pressure fluid, the synergistic effect of mechanical stripping and fluid removal is formed, and the problem that the cleaning capacity of a single cleaning mode on a complex structure area is insufficient is thoroughly solved.

The present application relates to the technical field of anchor excavator, specifically to a kind of anchor excavator pick tooth bit and tooth shank welding equipment, including support assembly, welding assembly, adjusting assembly and auxiliary unit.The present application adopts the welding mode of setting angle inclined support seat cooperation self-rotation, so that the molten filler metal can flow in the groove of tooth shank, improve the coverage of filler metal on the contact surface of tooth bit and tooth shank, and through the contact piece, ensure that the contact surface of tooth bit and tooth shank has sufficient filler metal with set amplitude vibration action, so that the filler metal can be replenished into the gap between tooth bit and tooth shank, reduce the resource waste caused by filler metal overflow, and avoid the problem of partial lack of welding at the connection between tooth bit and tooth shank caused by filler metal overflow, and the connection strength after welding is improved.

The utility model relates to the technical field of medical instruments, in particular to a composite gutta-percha point trimmer. The composite gutta-percha point trimmer comprises a sliding ruler, one side face of the sliding ruler is connected with a feeler gauge through a hand screw, the other side face of the sliding ruler is connected with a cutting knife, the other side face of the sliding ruler is provided with an upper rail, the upper rail is provided with holes of various sizes, and the holes are used for containing gutta-percha points of different thicknesses. The cutting knife comprises a knife rest and a blade installed on the knife rest, a rectangular groove for containing the upper rail is formed in the knife rest, and the blade is located in the rectangular groove. According to the composite gutta-percha point trimmer, gutta-percha points can be cut through the cutting blade, the feeler gauge can rotate by 360 degrees to measure gaps between teeth, meanwhile, the sliding ruler is further provided with scales of the measuring file and scales of the teeth, and the working efficiency is higher.

This application discloses an oral cleaning device, which includes a brush head, a handle, and an airflow generator. The brush head has a base at one end, and the base has brush bristles and airflow holes on one side. Inside the brush head is a first airflow passage communicating with the airflow holes. The handle is connected to the brush head, and the handle has a second airflow passage connected to the first airflow passage. The airflow generator is located inside the handle, and the airflow output port of the airflow generator is connected to the second airflow passage. The oral cleaning device of this application emits a wealth of fine bubbles from the airflow holes, and the impact generated by the instantaneous collapse and bursting of the fine bubbles cleans the gaps between teeth, enhancing the teeth cleaning effect and further improving the user experience.

The universal three-shaft swinging toothbrush head comprises a toothbrush rod and bristles, at least two transmission shafts are arranged in the end, close to the bristles, of the toothbrush rod, the bristles are evenly distributed on each transmission shaft, one transmission shaft is provided with a transmission wheel, and the other transmission shaft is provided with a follower wheel. The transmission wheel is meshed with the follower wheel through the gear teeth, and the bristles are driven to swing in multiple directions through transmission of the gear teeth. The number of the transmission shafts is three, the transmission shafts are respectively arranged along the longitudinal direction of the toothbrush rod, and the three-shaft design can realize a more complex swinging track, so that slits between teeth and the surfaces of the teeth are more effectively cleaned. Multi-direction swinging of the bristles is achieved through a three-shaft transmission structure, the three longitudinally-arranged transmission shafts are arranged in the toothbrush rod, the main transmission shaft is meshed with the follower wheel through helical teeth or straight gears, linkage driving is formed, the multi-direction swinging bristles can more thoroughly clean slits between teeth and the surfaces of the teeth, and meanwhile abrasion to the teeth is reduced.

The utility model provides a copper-free rubber-coated electric toothbrush head for cats, which relates to the field of electric toothbrushes and comprises a brush handle, the brush handle is of a columnar structure, the top end of the brush handle is a brush head part, the brush head part is provided with a brush sheet mounting position, a brush sheet is mounted and connected at the brush sheet mounting position, brush wires are arranged on the brush sheet, and the brush wires are connected with the brush head part. A soft rubber mounting position is arranged outside the brush sheet mounting position, and a soft rubber sleeve is mounted and connected in the soft rubber mounting position; and the efficient brush mechanism comprises a bristle planting surface, and the bristle planting surface is fixedly mounted on the brush sheet. The ultrasonic lines drive the brush wires to vibrate along with the ultrasonic lines, when the brush wires move forwards or backwards to brush teeth, the half-moon arcs at the top ends of the brush wires are attached to the tooth surfaces of the teeth, the brush wires at the two ends swing with the large swing amplitude relative to the brush wires in the middle, and the long brush wires with the large swing amplitude can enter slits between the teeth; therefore, deep dirt can be well cleaned, and the cleaning power is effectively improved.

To provide a toothbrush capable of more effectively cleaning gaps between teeth and between teeth and gums, reducing problems such as incomplete brushing due to user habits, and contributing to improvement of tooth brushing accuracy. [Solution] The toothbrush set 1 comprises a first toothbrush 2A and a second toothbrush 2B. The first toothbrush 2A has a toothbrush body 5 having a long handle 3 and a bristle section 4 formed at the tip of the handle 3, and a brush section 8A composed of multiple central bristle bundles 6a and multiple side bristle bundles 7a. The second toothbrush 2B has a toothbrush body 5 having a long handle 3 and a bristle section 4 formed at the tip of the handle 3, and a brush section 8B composed of multiple central bristle bundles 6b and multiple side bristle bundles 7b. The tips of the brush section 8A of the first toothbrush 2A and the brush section 8B of the second toothbrush 2B are shaped so that a curved convex portion and a curved concave portion are connected in the longitudinal direction of the handle 3.

The present invention relates to a dental care device comprising a cheek retractor 99 that has a plurality of indication loci 10. The indication loci are adapted to accept removable indicators 1, 2, 3 and may be provided as holes in a front face (21, Fig 1) of the cheek retractor, in two opposed arcs separated by spaces (20, Fig 1) corresponding to the mouth corners in use. The indicators may comprise different shaped front sections and / or may be different colours. The indicators may be used to identify gaps between teeth and provide an indication of the size of interdental brush (300, Fig 8) required for cleaning the corresponding space. A plurality of colour coded interdental brushes may be provided alongside the dental care device.

Thread forming tool for the chipless production of an internal thread, comprising a shank (20) on which at least one first thread forming tooth (Z) is mounted. 100 ,..., Z n ; Z 200 ,..., Z n ) and a second thread forming tooth (Z 100 ,..., Z n ; Z 200 ,..., Z n ) are provided, wherein the second thread forming tooth (Z) 100 ,..., Z n ; Z 200 ,..., Z n ) relative to a tool longitudinal axis (A) axially to the first thread forming tooth (Z) 100 ,..., Z n ; Z 200 ,..., Z n ) is arranged offset, with between the first thread forming tooth (Z) 100 ,..., Z n ; Z 200 ,..., Z n ) and the second thread forming tooth (Z 100 ,..., Z n ; Z 200 ,..., Z n ) in the axial direction a gap between teeth (Z L ) is provided so that the axial distance between the first thread forming tooth (Z) 100 ,..., Z n ; Z200 ,..., Z n ) and second thread forming tooth (Z 100 ,..., Z n ; Z 200 ,..., Z n ) greater than or equal to twice the thread pitch (P) to be produced, wherein at least two thread-generating areas (60, 70) are provided which are offset from each other in the circumferential direction with respect to a tool longitudinal axis (A) and are arranged around the tool longitudinal axis (a) and wherein groove-generating areas (80, 90) are formed axially upstream of the thread-generating areas (60, 70) through which grooves can be generated in the wall of a workpiece, wherein each thread-generating area (60, 70) is arranged in an axial projection parallel to the tool longitudinal axis behind at least one groove-generating area (80, 90) and has a smaller cross-sectional area in the axial projection than the respective associated groove-generating area (80, 90).