CN209236444U - A kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment - Google Patents

Abstract

The utility model relates to a kind of medical instruments of fixed dentine desensitizing agent, the fixed device of desensitizing agent of espespecially a kind of hyperesthesia of dentin's treatment, fixed device is shaped to facing shape, it mainly include denture fixing device portion and sensitivity treatment area, denture fixing device portion is shaped to that the matched three-dimensional film cavity body structure of full dental arch, denture fixing device portion opening are provided with undercut structure by high-molecular diaphragm；Denture fixing device portion depth or width face, which are in spacing tooth body 0.12~0.28mm thickness range, presets holding cavity structure formation sensitivity treatment area；The utility model aim is that the patient for tooth dentine hypersensitivities a large amount of after head and neck neoplasm radiotherapy provides desensitizing agent fixed device, device interior tooth body sensitive part is placed in from desensitization class reagent is about to by patient, fixed device is worn in oral cavity again, to improve patient using desensitization class reagent convenience, accuracy, timeliness and repeatability, the problems such as solving the inconvenience and limitation in patient's operation, improves the therapeutic effect of tooth body allergy.

Description

A kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment

Technical field

The utility model relates to a kind of medical instruments of fixed dentine desensitizing agent, and espespecially a kind of hyperesthesia of dentin controls The fixed device of the desensitizing agent for the treatment of.

Background technique

Hypersensitive dentin (dentin hypersensitivity) is also known as hyperesthesia of dentin (dentin Sensitvity), show as by environmental stimuli such as temperature (hot and cold), chemistry (acid, sweet tea), mechanical (rubbing or sting hard object) etc. The characteristics of caused aching and limp pain symptom of tooth of effect, feature are a kind of sharp, of short duration and the rapid pain of breaking-out, pain Be it is transient, stimulation removal, pain disappears immediately, but also has some patients to show as dull pain sense of discomfort.

There are many reason of causing patient hyperesthesia of dentin in life, such as: sleep bruxism, light, moderate physiological abrasion with Pathologic abrasion, bad tooth-brushing habit, after Caries therapy, after head and neck neoplasm radiotherapy etc., when patient is in feed, temperature Situations such as variation or mechanical stimulus, is likely to occur aching and limp sensitive, pain discomfort the disease of individual or a large amount of teeth in oral cavity Shape brings pain to patient, wherein the patient for needing to carry out head and neck neoplasm radiotherapy is especially worried, and this kind of patient exists Receive the dentine hypersensitivity symptom for easily causing oral cavity inner teeth gear after head and neck neoplasm radiotherapy, be related to sensitive teeth quantity compared with It is more, or even involve the tooth of whole oral cavity.

It is directed to the treatment of hyperesthesia of dentin at present, is divided into traumatic treatment and non-invasive treatment, traumatic treatment needs By specialized department for stomatology, doctor is completed, by reaching solution dentine hypersensitivity to dental pulps serial therapies such as sensitive tooth body row dental pulp devitalizations The problem of, apply in general to severe tooth body abrasion abrasion patient；But this method have it is traumatic, unless have no option, big portion Divide patient to be more willing to selection non-invasive treatment, may be selected to be controlled by specialized department for stomatology doctor in consulting room completion in non-invasive treatment It treats, reaches solution using non-invasive treatment means by using medical professional desensitization class reagent or alleviate because tooth body is sensitive Caused by aching and limp pain symptom.But from another point of view, due to the treatment of tooth body allergy cannot reach get instant result or The long-range effect persistently kept, while dentine hypersensitivity symptom has repeatability, even if dentine hypersensitivity symptom solves or alleviates Afterwards, the later period is it is possible to as dentine hypersensitivity occurs again for the exposure of dentinal tubule, thus the patient of consulting room treatment need it is more Secondary round-trip section hospital, journey is tired, take time and effort and effect may be unsatisfactory, and the patient of hyperesthesia of dentin is pain , it is solved the problems, such as the pain of tooth, existing patient wishes to can choose that portability is more preferable, usability is stronger, at home just Can the desensitization class reagent of Self-operating complete desensitization treatment, such as the use of desensitization class toothpaste common on the market, desensitization class is coagulated Glue etc..

Various for the home-use desensitization class reagent type of hyperesthesia of dentin at present, apparent availability is also big, and effect It is irregular, but such product has a common ground, that is, patient's Self-operating is needed to complete, however in actual use It was found that most of patient due to by desensitization class reagent mobility, the three-dimensional solid form of tooth body, the position of tooth body sensitivity and Quantity, the restricted gender of the visual range of patient's operation with can operating space the various aspects such as limitation influence, oral cavity week in addition The tense situation and degree of muscle group are enclosed, desensitization class reagent is influenced in oral cavity by the internal environment of oral cavity factor such as saliva of buccal cavity, Factors cause patient to tend not to the portion for smoothly and accurately such desensitization class reagent being smeared or being wiped sensitive pain Position, or even completely cannot in place, the repeatability of whole process operation is poor, and the accuracy of positioning is low, while it is even more impossible to guarantee to take off Quick class reagent is in tooth body sensitive part residence time, so that the desensitization effect for treating dentine hypersensitivity is affected, it can not The sense of discomfort of the sensitive pain of solution or alleviation tooth body, causes the therapeutic effect of hyperesthesia of dentin not good enough.

Although also being had in the prior art for straightening of teeth or for the Odonto-maxillary cover of medicine-feeding, such as Patent No. " 201110396532.8 ", patent name is the open source literature of " manufacturing method of invisible orthotic device and products thereof ", with the patent No. For " 201010121981.7 ", patent name is the open source literature of " Odonto-maxillary cover of medicine administration on tooth surface and preparation method thereof ", tooth The Odonto-maxillary cover of tooth surface administration prepares Odonto-maxillary cover using rubber material, but the facing raw thickness of rubber material preparation is thicker, Raw material taste is heavier, and rubber material is easy to aging, and oral foreign body sense weight when wearing, when use on daytime influence shape in special circumstances As, feel to feel bad because joint is uncomfortable, foreign body sensation is heavy during sleep at night, can not comfortably feel at ease to fall asleep, the various aspects of whole process Factor eventually lead to the course for the treatment of extend, curative effect it is slack-off, it is whole because the limitation of material structure causes it that can not use for patient comfort. And the principle of invisible orthotic device is the malocclusion for achieving the purpose that straightening of teeth by wearing the appliance, thus purposive Move the teeth into appointed part, but because it has the function of straightening of teeth, thus the appliance wear after be meeting to tooth Apply certain additonal pressure, thus can be only achieved the effect of moving teeth, when wearing, the inner tissue face of appliance and tooth body Surface fits closely and presses to facing, reaches the function of moving teeth by this additional force to tooth, but this Kind makes patient of the function of drifting tooth for hyperesthesia of dentin be useless even harmful the additional force of tooth body.

Summary of the invention

To solve the above problems, the utility model is intended to disclose a kind of medical instrument of fixed dentine desensitizing agent, especially Refer to a kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment；Particular for causing oral cavity after head and neck neoplasm Patients Treated by Radiotherapy Interior a large amount of teeth or denture allergy are treated, and desensitization class reagent accurately and efficiently can be fixed on tooth body Sensitive part, and desensitizing agent is made to keep corresponding reagent at sensitivity of tooth position, effectively improve tooth body desensitization class reagent health giving quality.

A kind of desensitization of hyperesthesia of dentin's treatment that in order to achieve the above purposes, the technical solution adopted by the utility model is: Reagent fixes device, which is characterized in that the fixation device is shaped to facing shape, mainly includes denture fixing device portion and sensitivity treatment Area, the denture fixing device portion are shaped to the matched three-dimensional film of full dental arch with maxillary teeth, mandibular teeth by high-molecular diaphragm Cavity body structure, denture fixing device portion opening are provided with undercut structure, are connect by undercut structure with tooth body maintenance；Denture fixing device portion depth or width Degree face is in the holding cavity structure formation sensitivity treatment that storage desensitizing agent is preset in spacing tooth body 0.12~0.28mm thickness range Area；Using desensitizing agent to sensitive tooth body carry out desensitization treatment when, can by patient from be about to desensitizing agent be placed in it is corresponding Sensitivity treatment area, then the fixation device for placing desensitizing agent is worn in oral cavity.

Preferably, the inner tissue face in the denture fixing device portion is provided with lines and forms anti-skidding rough surface.

Preferably, the molding thickness in the denture fixing device portion is 0.3~0.8mm.

Preferably, cusp position, corona buccal labial surface, tongue palatal surface or the neck of tooth body is arranged in the sensitivity treatment area Portion；The high matched sensitivity treatment area of customized type setting can be set according to the sensitive tooth position of patient.

Preferably, the high-molecular diaphragm is medical PETG diaphragm or PE isolation diaphragm, is elastic ebonite diaphragm.

Preferably, the high-molecular diaphragm is the dental arch shape Thin Elastic by independently customized dentognathic model thermoplastic shaping Membrane cavity body；It can be formed according to the dental arch shape customized type of patient.

Preferably, the undercut structure is set as being covered on region on gingival margin along each tooth or is covered on gum Lower edge；Wherein denture fixing device portion open edge positioning includes two kinds of situations:, can if patient's tooth body sensitive part is in non-tooth neck area The all standing of device edge will be fixed in gingival margin, i.e. undercut structure is covered on region on gingival margin；If there are neck portions in tooth body Fixed device can be covered a little gingival margin by sensitivity, i.e. undercut structure is covered on gum lower edge.

Preferably, the undercut structure setting is at 3~4 teeth of two cheek sides, to carry out maintenance from cheek side.

The beneficial effects of the utility model are embodied in: the fixation device of the utility model is divided into the upper jaw (i.e. upper tooth by position Bow) device and lower jaw (i.e. inferior dental arch) fixed device are fixed, it is the fixation device of personalized customization, shape and manufacture craft Have the characteristics that the dedicated specificity of special messenger, covers the fixed denture fixing device in oral cavity for full arch form；The utility model aim is for neck The patient of a large amount of tooth dentine hypersensitivities provides a kind of fixed dress of desensitizing agent of hyperesthesia of dentin's treatment after portion's tumor radiotherapy It sets, during using the fixation device of the utility model to use desensitization class reagent to carry out desensitization treatment to sensitive teeth, It can be placed in corresponding tooth body sensitive part in the fixed device from desensitization class reagent is about to by patient, then will placed de- The fixation device of quick class reagent is worn in oral cavity, to improve patient using the class reagent convenience, accuracy, timeliness of desensitizing Property and repeatability, solve inconvenience in patient's operation and the problems such as limitation, improve the therapeutic effect of tooth body allergy.

The utility model and home-use tooth whitening class product and its fixation device comparison, treat hyperesthesia of dentin Desensitization class product is non-invasi, non-corrosive, nonirritant product, safe and non-toxic reliable, while the utility model is consolidated Determining pallet again is made according to patient oral cavity dental arch tooth body 3 D stereo actual conditions, and oral cavity matching degree is good, thus safer Reliably, compared to universal oral cavity pallet on the market, the advantages of personalized designs, is that volume is smaller, comfort level, oral foreign body Feel smaller, it is in good taste, it can wear, the perienchymas such as periodontium will not be damaged same when nighttime sleep long-time When, it less will cause the burden of remporomandibular joint.

The fixation device of the utility model use 0.3~0.8mm thickness medical high polymer diaphragm, by ebonite thermoplastic at Type, elasticity is good with toughness, so that compactness is indeformable, not aging when use；Fixed device is provided at sensitive part There are the sensitivity treatment area in gap between tooth body, the setting in sensitivity treatment area can not have Tooth surface any pressure, and Wearing posterior fixation devices inner tissue face, tightly fitting does not contact completely with tooth body facing, but the region of the sensitive part in tooth body Tooth dignity is left, leaving distance is 0.12~0.28mm, that is, there is solid space depositing as sensitivity treatment area desensitization class reagent Between emptying, and be capable of fixing at required position and unshift to guarantee desensitizing agent when being worn in mouth, fixed device it is interior Tissue surface is designed as rough surface, to guarantee maintenance of the desensitizing agent in the denture fixing device portion of oral cavity and be uniformly distributed；This is practical new simultaneously The profile matter high grade of transparency, visible luminosity are high, and thin layer design can reduce foreign body sensation, and daytime, wearing did not affected the appearance completely, at night also It is wearable to be treated, since frivolous property feels sleep without obvious, can comfortably fall asleep；The utility model setting simultaneously Undercut position can guarantee that entirety is not fallen off, and wears and stablizes, and respond well to treatment fast, the course for the treatment of shortens.

Detailed description of the invention

Fig. 1 is the fixation device three-dimensional structure diagram of the utility model specific embodiment.

Fig. 2 is the preparation method component layouts schematic diagram of the utility model specific embodiment.

Attached drawing mark explanation: 1- denture fixing device portion, 2- sensitivity treatment area, 3- undercut structure, 11- heater, 12- polymeric membrane Piece, 13- formpiston dentognathic model B, 14- vacuum chamber, 15- platform base, 16- valve, 17- vacuum pump.

Specific embodiment

The specific embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings:

A kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment, the fixation device is shaped to facing shape, main It to include denture fixing device portion 1 and sensitivity treatment area 2, the denture fixing device portion 1 is shaped to and maxillary teeth, lower jaw tooth by high-molecular diaphragm The matched three-dimensional film cavity body structure of the full dental arch of tooth, 1 opening of denture fixing device portion are provided with undercut structure 3, by undercut structure 3 with The connection of tooth body maintenance；1 depth of denture fixing device portion or width face are in spacing tooth body 0.12~0.28mm thickness range to preset to store and take off The holding cavity structure of quick reagent forms sensitivity treatment area 2, and the present embodiment optimum thickness is 0.2mm；In use desensitizing agent to sensitivity When tooth body carries out desensitization treatment, it can be placed in corresponding sensitivity treatment area 2 from desensitizing agent is about to by patient, then de- by placing The fixation device of quick reagent is worn in oral cavity；The inner tissue face in the denture fixing device portion 1 is provided with lines and forms anti-skidding rough surface, It may be configured as alternating expression textured surface；The molding thickness in the denture fixing device portion 1 is 0.3~0.8mm, and the present embodiment is preferably 0.5mm；Cusp position, corona buccal labial surface, tongue palatal surface or the neck portion of tooth body is arranged in the sensitivity treatment area 2；It can basis The sensitive tooth position of patient sets the high matched sensitivity treatment area 2 of customized type setting, malpractice is avoided, if setting if neck portion It needs to optimize undercut structure 3 simultaneously；The high-molecular diaphragm is medical PETG diaphragm or PE isolation diaphragm, is bullet Property ebonite diaphragm；The high-molecular diaphragm is the dental arch shape film cavity by independently customized dentognathic model thermoplastic shaping； It can be formed according to the dental arch shape customized type of patient；The undercut structure 3 is set as being covered on gingival margin along each tooth Region is covered on gum lower edge；Wherein 1 open edge of denture fixing device portion positioning includes two kinds of situations: if patient's tooth body sensitive part , can be by fixed device edge all standing in gingival margin in non-tooth neck area, i.e. undercut structure 3 is covered on area on gingival margin Domain；If there are neck portion sensitivities in tooth body, fixed device can be covered a little gingival margin, i.e. undercut structure 3 is covered under gum Edge；The undercut structure 3 is arranged at 3~4 teeth of two cheek sides, to carry out maintenance from cheek side.

A kind of preparation method of the fixed device of desensitizing agent of hyperesthesia of dentin's treatment, mainly comprises the steps that

1) it obtains oral cavity former model: carrying out individual buccal impression for each patient's customized type to obtain the mouth of patient Chamber cavity block model；Oral cavity former is produced by oral cavity die technology, equal using alginate impression material, silicone rubber impression material etc. Can, suitable pallet is chosen, oral cavity die is carried out to patient oral cavity, takes out up to oral cavity former, is not necessarily to release agent or release agent；

2) prepare oral cavity formpiston model: then the liquid gypsum of mixing is filled into oral cavity former mould by mixing super hard gypsum In type, is taken out after hardening and obtain the customized type oral cavity formpiston model of adaptation patient, as formpiston dentognathic model A；Oral cavity formpiston Material is super hard gypsum perfusion, mixes scattered paste shape for super hard gypsum powder and water proper ratio tune and pours into former model, superhard stone In addition cream powder is without adding curing agent, the reaction of progress heat release hardening after super hard gypsum powder chance water, and whole process general 1 hour；

3) it marks sensitizing range: detecting the sensitive tooth body of patient, and to corresponding sensitive tooth body on formpiston dentognathic model A Sensitizing range carries out fixed point label；Sensitive position is drawn in the corresponding approximate location of model A using waterproof marker pen；

4) sensitivity treatment area 2 is preset: on formpiston dentognathic model A centered on the sensitizing range for pinpointing label, to extending out It dissipates for circumference, covers 0.1~0.3 mm thickness in circumferential surface, the mixing gypsum covering of preferably 0.2mm thickness is applied to model On the sensitivity treatment area 2 that marks out, form rough surface thickening gypsum surface and manufacture coarse lines using graver, repair simultaneously Whole formpiston dentognathic model B(is filled too deep excessive concave region, only retains a small amount of undercut, avoids finished product denture fixing device from plucking band difficult) The formpiston dentognathic model B of sensitizing range has been marked after hardening；

5) hot glue forms: after the complete hardening by cooling of formpiston dentognathic model B of super hard gypsum preparation, by formpiston dentognathic model B is placed on film laminator, using high-molecular diaphragm on film laminator, is heated high-molecular diaphragm, is made it according to formpiston dentognathic model B's Profile compacting diaphragm and the film cavity body structure for being shaped to dental arch shape, so that denture fixing device portion 1 be made；Both positive pressure molding press can be used Negative pressure molding press or 3D printer can also be used, the fixed device of oral desensitizing reagent of compacting the utility model can be made； Whole process using negative pressure by the model adsorption being heated in Model B, after cooling, diaphragm has required for becoming us The denture fixing device diaphragm in desensitizing paste support space removes diaphragm and carries out contouring, removes extra diaphragm, and polishing makes edge circle；

6) after denture fixing device portion 1 suppresses successfully, 1 edge of denture fixing device portion finished edge: is repaired after complete hardening by cooling to edge round blunt；Its Middle 1 open edge of denture fixing device portion positioning includes two kinds of situations:, can be by fixation if patient's tooth body sensitive part is in non-tooth neck area Device edge is arranged on gingival margin, i.e., is close to the undercut structure 3 of maintenance using the undercut for being covered on region on gum, if tooth body In there are neck portion sensitivities, fixed device can be covered a little gingival margin, i.e., using the undercut structure 3 for being covered on gum lower edge； Finally modified using scissors and the polishing of turbine sharpened edge；

7) user applies: patient tries on, formally to use after patient's teaching application method；It can be obtained by preparation method Directly operated by specialized department for stomatology doctor, material and the fixed device of low-cost desensitizing agent, pass through the individual character of fixed device Patient's further consultation number can be reduced by changing customization use, improved desensitizing agent effect, be not take up patient's time, night applies desensitizing agent It smears in fixed device, is worn in oral cavity, early morning takes out, cleaning, and clear water smears desensitization examination after impregnating storage, or drying again Agent is worn, and operating process is convenient, simple, quick, efficient.

A kind of forming method of the fixed device of desensitizing agent of hyperesthesia of dentin's treatment, mainly comprises the steps that

1) model structure is determined to patient's oral condition inspection, choose the matched disposable oral cavity impression tray of size and set Alginate impression material is set, oral cavity former model is produced using the flexibility of alginate impression material, super hard gypsum is then perfused In filling to oral cavity former model, formpiston model, i.e. formpiston dentognathic model A are obtained after demoulding；

2) it is directed to the sensitive tooth body of patient, marked is carried out on formpiston dentognathic model A to sensitizing range, and with coating The mode of super hard gypsum is covered on label, and coverage area is greater than sensitizing range, and cladding thickness is 0.1~0.3mm, right before hardening Its surface carries out coining lines processing, and shaggy formpiston dentognathic model B is made after hardening；

3) formpiston dentognathic model B is placed on molding press pallet, using high-molecular diaphragm according to formpiston dentognathic model B heat Modeling is shaped to the film cavity in denture fixing device portion 1, detailed process further include:

A1, the formpiston dentognathic model B13 prepared by super hard gypsum is placed on molding press platform base 15；

A2, high-molecular diaphragm 12 is displaced downwardly to and is placed on platform base 15 after heater 11 heats to a certain extent Formpiston dentognathic model B13 at；

A3, Open valve 16 carry out vacuum chamber 14 using vacuum pump 17 to vacuumize work；

A4, high-molecular diaphragm 12 are the denture fixing device of fixed device using formpiston dentognathic model B13 at this time as master mold thermoplastic shaping The just die trial of portion 1；

4) by the just die trial of denture fixing device portion 1 and formpiston dentognathic model B separated demolding, and the just die trial of denture fixing device portion 1 is trimmed simultaneously Undercut structure 3 is set, after polishing, obtains the fixed device of the desensitizing agent that finally can directly wear.

The utility model has specificity because special messenger is dedicated, and production needs to turn over patient's oral cavity model processed, therefore dehisces to patient Situation needs patient to have normal mouth opening, well such as whether limitation of mouth opening, extent of opening and fitness have certain requirement Fitness turns over patient's oral cavity model processed using buccal impression technology, fills by the former model of denture actual conditions in patient oral cavity Infuse super hard gypsum formpiston model, the form and tooth three-dimensional solid shape, denture Arch width matching degree of the fixation device of production Height, comfort level is strong, more saves on the dosage of desensitizing agent, keeps the effect of desensitization class reagent more efficient obvious, fixed The process of device production makes after turning over oral cavity model processed by specialized department for stomatology doctor, and manufacturing process is simple, and the waiting time is short, according to mouth The apparatus preparation situation of chamber consulting room can same day or when further consultation, that is, wearable use.

The utility model is according to the practical Arch width of patient, and tooth body three-dimensional position individual custom fabricated in dental arch is preceding Phase need to carry out buccal impression to patient by specialized department for stomatology doctor, then turn over oral cavity model processed according to patient's reagent oral condition system Make, but manufacturing process is simple, quickly, can go to a doctor the same day or second of further consultation can complete use, the utility model is being made When making, there is certain requirement to head and neck neoplasm radiotherapy patient patient itself, most of patient meets the requirements, even if carrying out The radiotherapy and chemotherapy of head and neck neoplasm, they still have good mouth opening and fitness, but deep by dentine hypersensitivity The puzzlement of disease can make the fixed device of personalized desensitizing agent for this kind of patient, improve desensitizing agent and use curative effect, allow him Get help.

Comparison and whitening Odonto-maxillary cover are corrosive and irritation because whitening agent is high concentration, and tooth whitening suggestion is by special Section doctor operates after protecting to perienchymas such as periodontium and carries out, it is not recommended that voluntarily tooth-whitening of being in, though main cause is Right home-use tooth-whitening reagent is fixed on dental surface by denture fixing device, but this universal pallet is not to try by user The production of agent oral condition, it is very low to match degree of conformity with the tooth body dental arch actual conditions of user, even if family wear whitening agent is dense Degree is diluted, but still has irritation and corrosivity, easily causes the risks such as chemical burn, the sensitivity of tooth of periodontium, It with certain risk and traumatic, therefore is not recommended to use, thus also the necessity of visible customization of individual character facing application and pass Keyness.

The above is only the preferred embodiment of the utility model, is not made to the technical scope of the utility model any Limitation, the technical staff of the industry can make some deformations and modification under the inspiration of the technical program, all according to this The technical spirit of utility model still falls within practical any modification, equivalent variations and modification made by above embodiment In the range of new technique scheme.

Claims (8)

1. a kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment, which is characterized in that the fixation device is shaped to Facing shape, mainly include denture fixing device portion and sensitivity treatment area,

The denture fixing device portion is shaped to the matched three-dimensional film of full dental arch with maxillary teeth, mandibular teeth by high-molecular diaphragm Cavity body structure, denture fixing device portion opening are provided with undercut structure, are connect by undercut structure with tooth body maintenance；

Denture fixing device portion depth or width face are in the appearance that storage desensitizing agent is preset in spacing tooth body 0.12~0.28mm thickness range Cavity configuration forms sensitivity treatment area.

2. a kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment according to claim 1, which is characterized in that institute The inner tissue face for stating denture fixing device portion is provided with lines and forms anti-skidding rough surface.

3. a kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment according to claim 1, which is characterized in that institute The molding thickness in the denture fixing device portion stated is 0.3~0.8mm.

4. a kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment according to claim 1, which is characterized in that institute Cusp position, corona buccal labial surface, tongue palatal surface or the neck portion of tooth body is arranged in the sensitivity treatment area stated.

5. a kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment according to claim 1, which is characterized in that institute The high-molecular diaphragm stated is medical PETG diaphragm or PE isolation diaphragm, is elastic ebonite diaphragm.

6. a kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment according to claim 5, which is characterized in that institute Stating high-molecular diaphragm is the dental arch shape elastic film cavity by independently customized dentognathic model thermoplastic shaping.

7. a kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment according to claim 1, which is characterized in that institute The undercut structure stated is set as being covered on region on gingival margin along each tooth or is covered on gum lower edge.

8. a kind of fixed device of desensitizing agent of hyperesthesia of dentin's treatment according to claim 7, which is characterized in that institute The undercut structure setting stated is at 3~4 teeth of two cheek sides, to carry out maintenance from cheek side.