37 results about "Tooth loss" patented technology

The invention relates to a thread implant which is characterized in that the thread implant comprises a cylindrical implant; the edge of the top of the implant is provided with smooth chamfers; the upper part of the implant is provided with a fine external thread with the thread tooth profile of isosceles trapezoid; the lower part of the implant is provided with an external thread with the thread tooth profile of trapezoid; the thread depth of the trapezoid external thread is gradually shoaled from bottom to top; the bottom of the implant is a spherical surface; the lower part of the trapezoid external thread of the implant is uniformly provided with three vertical cutting trough; the center of the top of the implant is provided with a truncated cone hole below which a regular octagonal hole is arranged; an internal thread blind hole is arranged below the regular octagonal hole. The thread implant is provided with excellent initial stability effect, is beneficial for the long-term stability of the implant, has high implant structure safety coefficient, is beneficial for the combination of gum and implant, can effectively restrict the adsorption of bacilli, and can be widely applied to various restoration process of denture implant due to tooth loss.

The invention discloses an occlusal force detection device and an occlusal force detection method thereof. The device analyzes the size of occlusal force of the masseter muscle by detecting gas pressure changes inside a rubber pneumatic bag. According to the detection method, occlusal force measurement can be achieved by detecting gas pressure changes inside the rubber pneumatic bag, the device is simple in structure, safe and sanitary, the measured air bag is soft and is particularly suitable for an old person with tooth loss, the occlusal of teeth and the gingiva can be measured at the same time, the comprehensive food masticatory ability of the old person can be reflected more visually, the trouble caused when comprehensive evaluation can be only achieved when other instruments are adopted for measuring the teeth and the gingiva separately is omitted, and a nurse can better take care of the old person conveniently.

The invention relates to an assembled connecting device for a dental implant, belonging to the technical field of dental implantation. The assembled connecting device is applicable to the patient who needs operative treatment and dental implantation caused by the tooth rebuilding, the tooth fracture, the periodontal disease and the tooth loss. The device comprises a tooth implanting nail, a connecting base table and a connecting screw nail, wherein the tooth implanting nail is connected with the connecting base table by the connecting screw nail; an implanting screw nail is externally provided with a bone thread section, the implanting screw nail is internally provided with an inner conical bore, a plurality of inclined lug bosses are arranged on the inner conical bore, the lower part of the inner conical bore is provided with a section of through hole, and the lower part of the through hole is provided with an inner screw thread to be matched with the connecting screw nail; the upper part of the connecting base table is provided with a denture connecting part, a gum crossing part is arranged in the middle of the connecting base table, and the lower part of the connecting base table is provided with an implanting tooth nail connecting part; and the implanting tooth nail connecting part is provided with a cone to be matched with the inner conical bore of the implanting tooth nail.

The invention discloses an in-situ bone taking and grafting indication guide plate in horizontal bone augmentation and a manufacturing method thereof. The technical problems that in the prior art, bone grafting requirements cannot be met during bone taking, the surgical effect is influenced, adjacent important vascular nerves and other anatomical structures are damaged due to inaccurate positioning of bone taking, or surgical risks are increased due to additional trauma caused by excessive bone taking are solved. The indication guide plate comprises a base plate, a bone shell obtaining guide plate and a bone shell placing guide plate. The manufacturing method mainly comprises the steps that stl data are obtained through oral scanning before an operation, CBCT is shot to obtain Dicom data,the two data are registered and fused to carry out ideal dental crown three-dimensional position design to obtain an ideal gingival margin position of a tooth loss area, ideal implant position designis carried out with repair as guidance, therefore horizontal bone augmentation final outer surface design is guided, and the base plate, the bone shell obtaining guide plate and the bone shell placingguide plate are designed. The three-dimensional positions of bone taking and bone grafting sites are accurately indicated, surgical wounds are reduced, surgical risks are reduced, the surgical time is shortened, complications such as damage to tooth roots of adjacent teeth are avoided, and the surgical efficiency is improved.

The invention provides a graded propelling type efficient coal mining machine cutting device and method. The device comprises a machine body, a driving mechanism, a rocker arm, a posture adjustment hydraulic cylinder, a speed changing box, a leveling hydraulic cylinder and three rollers; a plurality of cutting teeth are uniformly distributed in the peripheral direction of the rollers; the sizes ofthe cutting teeth of the three rollers are gradually reduced and are distributed in an axial gradient; the driving mechanism is hinged to the machine body; the rocker arm is connected with the driving mechanism; the posture adjustment hydraulic cylinder is connected between the machine body and the driving mechanism; the speed changing box is hinged to the rocker arm; the leveling hydraulic cylinder is connected between the speed changing box and the rocker arm; the speed changing box is provided with three power output shafts which comprise a low-speed power output shaft, a middle-speed power output shaft and a high-speed power output shaft in sequence; the three rollers are fixedly arranged on the three power output shafts respectively. According to the graded propelling type efficientcoal mining machine cutting device and method, provided by the invention, graded propelling is realized by adopting the three rollers through different cutting teeth and rotary speeds, and cutting resistance, cutting tooth loss and energy consumption of a cutting motor are reduced; the sizes of cut coal blocks are uniform, and collapsing, rib spalling and chain clamping phenomena of large coal blocks are avoided; the subsequent coal block crushing working amount is reduced; the mining efficiency and conveying efficiency of coal are improved.

The invention provides an effective method for preventing scorching in an electroplating process. The method is characterized in that an auxiliary electrode is used in the electroforming process, and the auxiliary electrode is in parallel with a workpiece to be plated and is connected with the cathode of a rectification power supply through a copper bar and a lead in the sanding and fixing initial-stage-thickening operation of the workpiece, so the auxiliary cathode effectively shares a current, thereby the surface of the workpiece is prevented from scorching, phenomena comprising tooth breakage, tooth loss, tooth removal, delamination, cracking and peeling are fundamentally solved, the product qualification rate is improved by 27%, and the production cost is reduced by above 14%.

A metal zipper tooth loss detection device disclosed by the present invention comprises an installing base, and a through zipper embryo part and an induction device which are arranged on the installing base. The through zipper embryo part is equipped with a single-edge zipper embryo channel in and through which a single-edge zipper embryo is inputted and passes, and the induction device comprises a dialing rod and a detection inductor. One end of the dialing rod is a detection end, and the other end is a connection end. The detection end is embedded in the single-edge zipper embryo channel movably, at detection, the detection end presses against and is contacted with the zipper teeth of the single-edge zipper embryo, the connection end is connected with the induction device, and the induction device is triggered via the movement of the dialing rod. The above detection device is simpler in structure, ingenious in design, accurate and rapid in detection effect, the position connection relation of the parts is stable and reliable, the positioning of the defective products is conducive, the detection frequency of the operators is reduced, the working efficiency is improved, and the output of the adverse production is reduced substantially.

The invention relates to prosthetic moulded parts which comprise, at least in regions on the surface thereof, at least one layer of biomimetic apatite selected from fluorapatite, hydroxylapatite or mixtures thereof, wherein the surface of the moulded parts comprises, at least in said region, micromechanical anchoring locations for improving the mechanical binding of apatite on the surface. The invention also relates to moulded parts for use in dental prosthetic provision in the event of tooth loss, in particular, for cellular attachment of cells on prosthetic moulded parts. The invention further relates to the method for producing the prosthetic moulded parts.

An apparatus and system for cleaning oral cavities via a device with predetermined optimally imposed methods to remove germs, bacteria, tartar and plaque, which have been clinically proven to cause gum disease and tooth loss, efficiently and with minimal abrasion to tooth enamel and gums. Variations of this disclosure include but are not limited to embodiments where the device utilizes any of the aforementioned components to achieve the intended function. However, a preferred embodiment of this disclosure comprises an electrically controlled magnetic field to allow optimal contact pressure in the mouth, a motion device capable of tracking motion coordinates to record daily cleaning methods and to inform recommendations and web enabled capability to store activity over time, a scrolling toothbrush and gum cleaning device or a stationary mouth guard device applying the same force dampening and applying technology in a more automated fashion.

The invention discloses an implant prosthesis for restoration of partial or whole tooth loss and a manufacturing method of the implant prosthesis. The implant prosthesis comprises first abutments, a compensating support and a dental crown; the first abutments are used for being fixed to gum of a patient, the compensating support is used for compensating loss of height caused by socket ridge absorption and is matched with the gum of the patient, and the dental crown is arranged on the compensating support separately. A gum mount used for mounting the dental crown is arranged on the upper portion of the compensating support; a second abutment corresponding to the first abutments is arranged on the lower portion of the compensating support, and the compensating support is fixed to the gum of the patient through the first abutments and the second abutment. As the loss of height caused by the socket ridge absorption in the patient is compensated through the compensating support, the length of the dental crown is the same with that of real teeth, and the effect of restoration of the whole tooth loss is achieved. Further, the dental crown arranged on the compensating support can be detached separately so that clinical maintenance is facilitated.

The invention relates to a denture porcelain-applying method. The method comprises detecting whether a model is clean, cleaning OP, finding corresponding porcelain, blending porcelain to obtain a proper concentration, firstly filling an adjacent groove with a little amount of porcelain so as to prevent pulling open, and piling the porcelain when the porcelain piling program is started; wetting the second-layer OP with water, padding a wet face tissue on the tooth loss area or coating the tooth loss area with separation oil; firstly observing occlusion during posterior tooth is formed through piling, accurately finding a position where occlusion is relatively dense as a blending reference point, enabling occlusion is relatively low after the dentin layer is formed through piling, guaranteeing that occlusion is not tight in order to avoid deficient transparency; and then raising the occlusion height by 0.8-1.0 mm when the denture is transparent, forming the tooth basic shape and an occlusal head through cutting, and aiming at the tooth with not enough space, firstly guaranteeing that the bottom color is not seen, and then piling none or a little of transparent porcelain.

An aerobic mouthguard having a plurality of treads intermittent to one of a plurality of recesses forming an oral footprint and or an opposite oral footprint for larger oral shock diffusion and larger oral osmotic equilibrium. Each oral footprint may comprise a plurality of ducts and v-cuts that taper toward their posterior end for retaining larger oral fluids. The aerobic mouthguard can comprise a single rigid footprint for stress related contact sports or a double elastic footprint for stress-free dental therapy and treatment. A tab defining a lip footprint can be forwardly part of the aerobic mouthguard, and a tether or a drool cup having one or more drool pads can be forwardly part of the tab for larger oral osmotic equilibrium to prevent tooth loss.

Belonging to the technical field of medicine application, the invention discloses pharmaceutical application of caffeic acid 3, 4-dihydroxyl phenethylester. A prevention and / or treatment medicine prepared from the caffeic acid 3, 4-dihydroxyl phenethylester (CADPE) can be used for inhibiting osteoclast differentiation, inhibiting an osteoclast bone erosion function, promoting osteoblast differentiation, and promoting an osteoblast bone formation function. The medicine can be used for preventing and / or treating osteoclast activity abnormality caused diseases, which include osteoporosis, rheumatoid arthritis, periodontitis, tooth loss, Paget's disease, rickets, osteoclastoma, myeloma bone disease and cancer bone metastasis caused bone destruction, etc.

The invention discloses a method for preventing and treating tooth loss or tooth breakage of bamboo rats. The method mainly comprises the following steps of 1 preparing a specially-made feed; 2 timely disinfecting feed to improve feed quality; 3 using traditional Chinese medicine anti-inflammatory powder to treat gingival. A formula and a preparation method of the specially-made feed for preventing and treating the tooth loss or the tooth breakage of the bamboo rats are innovated, the gingival is treated and the supplied feed is improved timely when the bamboo rat teeth are in unusual condition, gingival disinfection is performed on the bamboo rats losing teeth or provided with broken teeth and then the traditional Chinese medicine anti-inflammatory powder is coated on the teeth, prevention and treatment are tightly combined, the formula is appropriate, and the method has the remarkably effect on reduction of the tooth loss rate and the tooth breakage rate of the bamboo rats.

The invention belongs to the field of oral hygiene products and in particular relates to toothpaste using granite as abrasive agents. The ingredients of the toothpaste usually comprise the abrasive agents, foaming agents, binding agents, moisturizing agents, sodium silicate, preservatives, sweetening agents, essences, pigment, water and the like, wherein the granite powder with Mohs hardness of 5.5-5.9 and particle size of 1-30mum is used as the abrasive agents. According to the toothpaste, the Mohs hardness of the granite is second only to that of the tooth, and the granite used as the abrasive agent of the toothpaste can be used for effectively eliminating dirt without tooth loss; the granite abrasive material has relatively low price, so that the production cost of the toothpaste can be reduced.

The invention provides an abutment correction attachment for reducing extended jaw teeth before oral implant restoration. The abutment correction attachment includes a telescope crown, a solid cushionand a central penetrating partition. The telescope crown is a cylindrical telescope crown. The central penetrating partition is arranged in the telescope crown, and the central penetrating partitionis arranged perpendicular to the axis of the telescope crown. The central penetrating partition separates the telescope crown into an upper telescope part and a lower telescope part. The solid cushionis nested in the upper part of the telescope. The top surface of the solid cushion forms an occlusal surface, and the lower part of the telescope covers a healing abutment. The abutment correction attachment for reducing extended jaw teeth before oral implant restoration can have occlusal contact with the jaw teeth to achieve the clinical effect of reducing the jaw teeth. For some cases that theprosthesis space is insufficient due to long period of tooth loss and extended jaw teeth, the correction attachment can be used to provide a certain occlusion space for later implant restoration to finally obtain a good occlusion relationship.

The invention discloses a deciduous tooth interval loss space restoring and maintaining method which is characterized by being realized by designing a deciduous tooth interval loss space restoring and maintaining device. The device mainly comprises a retention ring, a chute and a main arch wire, wherein the chute is fixedly connected with the outer side surface of the retention ring; a perforation matched with the outline of the main arch wire is formed in the chute; a retention hook is arranged on a side wall at the front end of the chute; the main arch wire is sequentially composed of a movable rod, a first U-shaped bend, a longitudinal connecting rod, a second U-shaped cheek bend, a front stop lever, a second U-shaped tongue bend and a rear stop lever; the first U-shaped bend, the second U-shaped cheek bend and the second U-shaped tongue bend have vertically downward bend bottoms and are perpendicular to the longitudinal connecting rod, the front stop lever and the rear stop lever; the movable rod at the rear end of the first U-shaped bend penetrates through the perforation in the chute and can slide back and forth in the perforation; a transverse rod is detachably connected to the longitudinal connecting rod; and the transverse rod, the front stop lever and the rear stop lever are parallel to one another and are all transversely arranged. The device is reasonable in design, simple in structure and convenient to use, and the method has high popularization values on child tooth loss space maintenance and restoration.

The invention provides reagents and method for replacing teeth lost to periodontitis and other diseases and disorders resulting in tooth loss, and provides materials and methods that result in replacement or reimplanted teeth that have a higher rate of stable, long-term implantation status. In a first aspect, the invention provides an implantable tooth, comprising a natural or artificial animal tooth having a microporous tooth root surface, wherein said tooth root surface comprises a plurality of periodontal ligament progenitor cells coating all or a portion of the tooth root. In particular embodiments, the tooth is a natural tooth, especially a human tooth. In alternative embodiments, the tooth is an artificial tooth. In particular embodiments, the tooth comprises a periodontal ligament progenitor cell coating that further comprises one or a plurality of extracellular matrix proteins. In a second aspect, the ivnention provides kits for preparing an implantable tooth.

The invention discloses a digital processing method and a processing system for a dental restoration in the technical field of dental restoration. The digital processing method comprises the following steps that 1,mold taking is carried out on dentition of a patient with tooth loss or defect; 2, digitally trimming is carried out on an impression mold; (3) pouring is carried out on the finished impression mold; (4) mold reversing is carried out on the cast impression mold; and 5, three-dimensional scanning is carried out on a model obtained after mold reversing is carried out, and the processing system comprises a mold taking system, a repairing system, a pouring system, a mold reversing system, a three-dimensional scanning system, a digital fine adjustment system, a data recording system and a manufacturing system. The mold taking system takes the mold manually. Infrared scanning and three-dimensional scanning are carried out on a primary dentition mode generated after model taking through digital equipment, so that the flatness of the primary dentition mode and the wearing comfort of a patient are adjusted, defects are reduced, meanwhile, the wearing comfort of a processed false tooth is improved, the influence is reduced, and the economic practicability is relatively high.

The invention discloses a personalized pure tantalum false tooth inner crown laser additive manufacturing forming method which includes the steps: first, scanning a tooth loss portion in an oral cavity to obtain oral cavity scanning data results; second, building a false tooth inner crown three-dimensional model by three-dimensional modeling software, adding supports and performing correction andoptimization; third, leading an optimized three-dimensional model into a laser additive manufacturing device to manufacture a pure tantalum false tooth inner crown formed part; fourth, performing heattreatment on the pure tantalum false tooth inner crown formed part, removing the supports and blasting sands; fifth, corroding the surface of the pure tantalum false tooth inner crown formed part after sand blasting, and drying the pure tantalum false tooth inner crown formed part after ultrasonic cleaning to obtain a pure tantalum false tooth inner crown. An oral cavity data scanning technologyis combined with a laser additive manufacturing technology, tantalum powder serves as a raw material to prepare the personalized pure tantalum false tooth inner crown, the matching degree of the puretantalum false tooth inner crown and the tooth loss portion in the oral cavity is increased, human body safety of the false tooth inner crown is improved by the aid of the performance of pure tantalum, and the service life of the pure tantalum false tooth inner crown is prolonged.

The invention discloses a method and a system for performing online testing and diagnosing on crack and tooth falling failures of a woodworking band saw blade. The method comprises the steps of acquiring the main shaft rotating speed, the feeding speed, the saw blade tension force and the saw blade transverse vibration displacement of the to-be-tested woodworking band saw blade; obtaining an Lyapunov index based on a Duffing equation and an improved QR decomposition method according to the acquired main shaft rotating speed, the feeding speed, the saw blade tension force and the saw blade transverse vibration displacement; comparing the Lyapunov index with an Lyapunov index range comparison table, and determining the fault condition of the woodworking band saw blade. Through monitoring the number of the woodworking band saw blades, Lyapunov index testing is performed; according to the Lyapunov index, woodworking band saw blade damage determining is performed; and furthermore the Lyapunov index is based on a maximal Lyapunov index of the Duffing equation. Weak signal detection can be performed. The method and the system are applied to tooth falling fault testing of the woodworking band saw blade, thereby realizing real-time online broadcasting for the fault of the woodworking band saw blade, and preventing safety fault, woodworking quality reduction and severe wood wastage caused by incapability of finding out the fault of the woodworking band saw blade in time.

Periodontitis is a common chronic inflammatory disease featured the destruction of connective tissue and osseous tissue, which often influences the supportive tissues around gingiva, periodontal membrane, alveolar bone and cementum and brings inflammatory damage to them which finally results in tooth loss, indigestion and systemic infection etc. This invention discloses a formula of health-care food for antibiotics, anti-inflammation, bone growth and prevention of periodontitis and its preparation method. The product consists of dried tangerine peel and hawthorn with effect of antibiotics, anti-inflammation and promoting bone growth, especially suitable for prevention and treatment of oral diseases such as periodontitis. It can be used to make hawthorn slices, hawthorn peels, gums, fructose, drinks and other hawthorn health-care products. It can also improve digestion, relieves cough, removes phlegm,reduces blood-lipid and blood-sugar, protects liver and heart. It is a health-care product applicable for people with sub health like indigestion, pulmonary heart disease, coronary heart disease, liver cirrhosis, diabetes and osteoporosis.

Disclosed is a CAD / CAM / SLM-3D combined printing method for dental restorations. A CAD / CAM / SLM-3D combined printing system, constituted by an optical scanning measurement instrument or a contact scanning measurement instrument, computer-aided design software for dental restorations, a miniaturized metal 3D printer, and a numerically controlled milling machine, is used to prepare a metal restoration, combining the existing dental CAD / CAM system with a metal 3D printing technique to combine the respective numerically controlled processing methods thereof so as to maximize the effects. The method can improve the automatic production efficiency of metal dental restorations, especially complex metal dental restorations, and eliminate the cumbersome procedures in the traditional manual manufacture for dental restorations. Thus the method improves the manufacturing quality and stability of restorations, achieving the purpose of rapid, accurate and personalized manufacturing, and better satisfying the urgent requirements of patients with tooth loss.

The embodiment of the invention discloses a preparation method of a zirconia all-ceramic implant, comprising the following steps: (a) obtaining CBCT data and surface three-dimensional scanning data ofbones, adjacent teeth and antagonistic teeth in a tooth loss area; (b) registering the acquired CBT data and 3D surface scanning data, and analyzing and determining the overall parameters of the tooth loss area; (c) designing an implant structure based on the overall parameters of the tooth loss area, and cutting the sintered and crystallized zirconia by numerically-controlled ultra-short pulse laser according to the implant structure so as to obtain a zirconia implant; (d) carrying out roughing treatment and polishing treatment on the zirconia implant by numerically-controlled ultra-short pulse laser, followed by cleaning and sterilization to obtain the zirconia all-ceramic implant. By the above method, processing of the sintered zirconia can be realized, and the processing precision ishigh and micro-cracks caused by machining are avoided. In addition, the preparation method has simple process and short preparation time, and the production efficiency is improved.

The present invention relates to the field of traditional Chinese medicine spray, in particular to a traditional Chinese medicine spray for treating loose and floating teeth of kidney deficiency type and a preparation method thereof. 10-50 parts of gypsum, 10-100 parts of mint leaves, 20-60 parts of daqing salt. The present invention complements the gaps in the prior art for treating or preventing tooth pine type traditional Chinese medicine spraying of kidney deficiency type, improves the safety of spraying, achieves no toxic and side effects on the human body, participates in the circulation of human body fluid environment to a certain extent, and strengthens kidney function. Improve the ability of gingival cells to repair and achieve the effect of fixing teeth and preventing loss.

The invention relates to an implant repair device for zirconium dioxide complete tooth loss, which comprises a support table, a mounting hole is formed in the support table, a guide tube is arranged in the mounting hole, a screw is in threaded connection in the guide tube, a base table is arranged on the screw, a crown head is arranged on the base table, and a plurality of clamping blocks are arranged between the guide tube and the base table. The multiple clamping blocks are evenly arranged in the circumferential direction of the guide tube at intervals, a first fixing block is arranged on one side of each clamping block, a second fixing block is arranged on the other side of each clamping block, the first fixing blocks and the second fixing blocks are opposite in orientation. The guide tube is provided with first fixing grooves matched with the first fixing blocks, and second fixing grooves matched with the second fixing blocks are formed in the base table. The implant repairing device has the effect of conveniently improving the stability of the base table.

Dental implant guide plate for complete tooth loss, including a base body in contact with the alveolar bone or mucous membrane to locate the surgical site, the base body is provided with at least one guide hole for drilling, and each guide hole corresponds to the alveolar bone. For the corresponding implant socket, each guide hole has a positioning plane for controlling the depth of the prepared hole; the base body is provided with a positioning hole, and the positioning hole cooperates with the positioning pin set in the patient's oral cavity, and the positioning pin is inserted into the positioning hole to lock the base body Location. The method for making the dental implant guide plate with complete tooth loss includes fixing the positioning pins on the corresponding positions of the gums; determining the implantation plan according to the CT data; making a plaster model or an intraoral scanning model of the patient's gums with the positioning pins; The implant plan designed by CT data and the three-dimensional model of plaster or the intraoral scanning model generate the guide plate model; the guide plate is made according to the guide plate model. The invention has the advantages of less trauma to the patient and accurate positioning.

The invention relates to a denture porcelain-tooth wax adding method. Lingual cusp is firstly formed by adding wax, wax is added again if thickening is needed according to conditions, the thickness of the wax pattern is guaranteed to be uniform, the abutment is tightly pasted, the wax thickness at the anterior tooth is 0.4 mm, the wax thickness at the margin is 0.3 mm, the wax thickness at the posterior tooth is 0.5 mm-0.6 mm, a lingual-side metal reinforcing belt is need when the tooth loss area exceeds 2 pc, a reinforcing belt is designed at the free end, and the thickness of adjacent mesial surface and distal surface, and proximate surface at the tooth-missing area needs thickening.

The invention discloses an implant operation method. The operation method includes the steps of firstly, estimating sclerotin around teeth prior to tooth implantation due to the fact that bone loss is more serious in a circumstance of long-term tooth loss, and performing guide osteanagenesis or bone remodeling prior to teeth implantation to allow gum bone to have enough conditions for tooth implantation if alveolar bone is insufficient in width; secondly, making fine operation positioning moulds to allow the implant for the gum bone to be located at the optimal position; thirdly, implant the implant by the aid of the operation mould at a temperature lower than 45 DEG C; and fourthly, implanted an artificial tooth on the implant when the implant is implanted and growth density and speed of sclerotin around the implant accord with a planting rule. No damage is caused to adjacent tooth support tissues, side effect is low, and success rate is high. Due to the fact the temperature is controlled to be lower than 45 DEG C, osteocyte death caused by long-term high temperature is avoided.

The invention discloses a deciduous tooth interval loss space restoring and maintaining method which is characterized by being realized by designing a deciduous tooth interval loss space restoring and maintaining device. The device mainly comprises a retention ring, a chute and a main arch wire, wherein the chute is fixedly connected with the outer side surface of the retention ring; a perforation matched with the outline of the main arch wire is formed in the chute; a retention hook is arranged on a side wall at the front end of the chute; the main arch wire is sequentially composed of a movable rod, a first U-shaped bend, a longitudinal connecting rod, a second U-shaped cheek bend, a front stop lever, a second U-shaped tongue bend and a rear stop lever; the first U-shaped bend, the second U-shaped cheek bend and the second U-shaped tongue bend have vertically downward bend bottoms and are perpendicular to the longitudinal connecting rod, the front stop lever and the rear stop lever; the movable rod at the rear end of the first U-shaped bend penetrates through the perforation in the chute and can slide back and forth in the perforation; a transverse rod is detachably connected to the longitudinal connecting rod; and the transverse rod, the front stop lever and the rear stop lever are parallel to one another and are all transversely arranged. The device is reasonable in design, simple in structure and convenient to use, and the method has high popularization values on child tooth loss space maintenance and restoration.