A kind of anti-demoulding tooth pallet and utilize this pallet high accuracy to produce the method for die
Technical field
The present invention relates to a kind of dental medical instrument, especially a kind of anti-demoulding tooth pallet and utilize this pallet high accuracy to produce the method for die.
Background technology
At present; in Oral Repair and orthodontic treatment process, impression taking is absolutely necessary operating procedure; all can use before and after treatment; operation is also uncomplicated; but often can run into demoulding phenomenon in operation; when especially giving the correction patient having affixed bracket in mouth and the very irregular patient's delivery of mouth inner teeth gear arrangement, it is produced in impression flow and is very easy to the demoulding.Namely the so-called demoulding refers to: doctor is when producing oral cavity model, first modulate modeling composition, be placed in pallet, again pallet is pressed into upper denture or the mandibular dentition of patient, now unnecessary die material can flow out from the overflowing hole of pallet, after waiting for that die material solidifies, pallet just has certain adhesion with die material, pallet takes out in patient's mouth together with die material by doctor, now buccal impression is produced complete, but due to the process that die material takes out in oral cavity, due to the powerful negative pressure formed between die material and oral soft tissue and saliva of buccal cavity, and the resistance that in oral cavity, the anatomical structure of corona itself causes, add that doctor's demoulding maneuver is incorrect, the too very little little and die material in pallet overflowing hole is adjusted and is mixed unreasonable etc. reason, cause die from oral cavity in detach procedure, the die material phenomenon that part is separated or even is separated completely from pallet.If die is separated from pallet; then die can be out of shape; doctor then has larger difference with the real situation of oral cavity inner teeth gear with the plaster model of the die perfusion of distortion again; oral cavity technician has at this dummy that oral cavity model of larger difference is done; orthodontic devices etc. are worn in patient oral cavity and patient can be caused to wear discomfort; dummy and the various complication such as tooth body is not closely connected, finally cause dummy failure, complication increases.Fixing and the movable prosthodontics of dentition defect in oral cavity, and various orthodontic therapy device making etc. all belongs to high-accuracy reparation, the fine structure that buccal impression made by doctor wants energy accurate response oral cavity tissue to dissect, die and oral cavity model are produced inaccuracy and will be made to later stage artificial tooth, and clinician waits a lot of difficulty of increase to trying on of dummy.Or even need delivery again, analogue formation again, and again send Dental Technician Office again to make dummy, this increases doctor undoubtedly, the work load of technician and lengthening working hours, and adds time and the psychological burden of patient assessment.Therefore design one can prevent this demoulding phenomenon when producing model, ensure that the precise and stable firm pallet of die has important clinical meaning.And at present, not yet there are similar products.
Summary of the invention
In order to solve problems of the prior art, the object of this invention is to provide a kind of anti-demoulding tooth pallet, and a kind of method utilizing this pallet high accuracy to produce die is provided.
The technical solution used in the present invention is as follows:
A kind of anti-demoulding tooth pallet, comprise tray body, described tray body is by handle, pallet side wall, the tongue template composition of tray slot and central authorities, tray body is provided with overflowing hole, it is characterized in that: the below of described tray body is provided with the U-shaped end for hold the modeling composition that from overflowing hole overflow that be connected detachable with it; Palate catch is provided with directly over described tray body tongue template; The rear end of described tongue template is provided with perpendicular back side panel, for installing and fixing palate catch.
Described one anti-demoulding tooth pallet, is characterized in that: described base is made up of base plate, the retaining wall being positioned at base plate periphery and the raised line that is positioned at base plate inner circumferential; Base is connected with tray body near opening is detachable; Described handle is provided with for being fixed on by base outside tray body and the cutting ferrule matched with base plate retaining wall, and described cutting ferrule is provided with the sleeve be socketed in outside handle, sleeve is respectively equipped with the upper and lower two pairs of location wings for blocking base plate retaining wall; The outside of described base plate rear and retaining wall joint is provided with the groove caved inward, and this groove coordinates with the lower location wing of cutting ferrule, namely assembles rear lower location wing and is absorbed in the groove of depression, now goes up location wing and blocks the top of left and right side retaining wall near vacancy position respectively.
Described one anti-demoulding tooth pallet, is characterized in that: the handle end of described tray body is provided with and facilitates cutting ferrule to dismantle and the snap close preventing cutting ferrule from skidding off.
Described one anti-demoulding tooth pallet, is characterized in that: the middle part of described pallet side wall is outwardly curved; The top of sidewall is provided with aduncate crimping.
Described one anti-demoulding tooth pallet, is characterized in that: described overflowing hole is positioned on pallet side wall and tray slot, and overflowing hole do not established by tongue template.
Described one anti-demoulding tooth pallet, is characterized in that: the aperture be positioned at inside pallet, described overflowing hole is less than the aperture in outside.
Described one anti-demoulding tooth pallet, is characterized in that: described back side panel is provided with upper and lower two to the through hole for installing palate catch.
Described one anti-demoulding tooth pallet, is characterized in that: described palate catch is provided with overflowing hole.
Utilize anti-demoulding tooth pallet high accuracy to produce a method for die, comprise the steps:
1) base is assemblied in tray body, and is fixed with cutting ferrule;
2) according to the height of patient's palatine, in the through hole that palate catch insertion back side panel is adapted;
3) modeling composition is modulated, mix cutter with tune to be in harmonious proportion to butyrous, modeling composition is put into pallet on a small quantity, and mix with adjusting the overflowing hole that modeling composition part to be pressed into tray bottom and front-rear side walls by cutter, die material is entered outside overflowing hole and between base and forms modeling composition plane, then die material is piled pallet;
4) pallet that die material is housed is put into patient oral cavity, and be pressed into the upper of patient or mandibular dentition, denture after the press-in of first pallet rear portion during press-in, slow in pallet front portion press-in denture again, doctor with the hands forefinger pins the middle part of base retaining wall both sides, pallet is not firmly rocked, after modeling composition in waiting tray solidifies, the pallet of subsidiary patient teeth's die is carefully taken out in mouth, the hand-held pallet of doctor anterior handle during taking-up, utilize tilting power, allow impression tray rear portion first depart from oral cavity palatine, and then take off impression tray along labial teeth direction;
5) die is after sterilization dries up, and doctor is on the other hand by die end thereof contacts Gypsum Fibrosum oscillator, and another hands is slowly filled into adjusting the Gypsum Fibrosum mixed on die, until Gypsum Fibrosum covers whole die, after gypsum sets, takes out plaster model, completes the making of oral cavity model.
Utilize anti-demoulding tooth pallet high accuracy to produce a method for die, it is characterized in that described die material is alginic acid salt modeling composition.
The present invention is rational in infrastructure, there is following beneficial effect: 1) tray body sets up base, its base plate cover crosses tray bottom, the retaining wall lid of base plate periphery crosses 2/3rds of pallet side wall height, when impression taking, modeling composition overflows and forms a certain thickness drag die plane in the outside of pallet and the inner side of base plate from the overflowing hole of pallet, for die takes out the strength that process and die filling process provide powerful opposing vertical and lateral displacement and deformation.2) Tray side is cambered design, and edge is also designed with crimping, changes the vertical plane design of traditional tray side, adds Vertical dimension dislocation power when opposing die takes out.3) pallet overflowing hole be designed to the design little compared with the diameter of pallet apertura lateralis of pallet inside diameter, like this in die taking-up process, prevent modeling composition from dislocating from pallet, increase frictional force and retention.4) with in common pallet delivery process, doctor's both hands forefinger is by being pressed in the middle part of pallet both sides pallet to be fixed on a settling position, modeling composition cannot be discharged due to blocking of forefinger in the overflowing hole of forefinger position, because not having the card of pallet to modeling composition to embrace power herein, so it is more weak to locate anti-die dislocation power.Be very easy to dislocation herein when die takes out, but the finger maintenance district of this device doctor is covered by base plate, therefore the discharge that can not affect overflowing hole die material and the die type plane formed thereof, enhance drag performance herein.5) traditional tray handle and tray body weld, there is no overflowing hole, when die takes out in oral cavity and when mould filled with by die modeling composition easily and pallet depart from, cause stamp deformation, this pallet still designs overflowing hole at handle and tray body weld, adds the anti-anticreep virial of junction.6) design of base plate can make the modeling composition overflowed from pallet overflowing hole stay base plate and form drag plane, instead of as common pallet, modeling composition be extruded and under be suspended on the oral mucosa of patient, or even unnecessary impression material to be extruded to the palate of the rear portion of pallet and patient pharyngeal, and the nausea and vomiting of making patients reaction.7) palate catch is set up, it can select according to the height of patient's palatine the upper strata or the lower via hole that insert back side panel, palate catch is provided with overflowing hole, enter on the solid tongue template immediately below it by the die material overflowed in its hole, be equivalent to add one deck network structure in die material, add overall structural strength, be out of shape preventing die material and serve well effect, decrease the risk of palatine district die dislocation simultaneously.8) because modeling composition and pallet to stick combination more solid, then doctor can take out rear Reperfu-sion plaster model as reserved type module first gypsum sets, especially the patient that terminates of correction, twice die is often needed with common pallet, one pair is for making keeper, another pair is for making record model, and a secondary die got by this high accuracy anticreep die shoe dish, therefore alleviates manpower and materials.9) during model perfusion, also more common pallet has the advantage of larger anti-stamp deformation dislocation.In a word, this invention achieves the comprehensive anti-demoulding, and utilizes this device can realize high accuracy to produce die.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation after each parts of the present invention assemble;
Fig. 3 be in Fig. 2 A-A to sectional view;
Fig. 4 is the structural representation of tray body;
Fig. 5 is the structural representation of base;
Fig. 6 is the structural representation of palate catch;
In figure: 1-tray body; 1-1-hands handle; 1-2-pallet side wall; 1-3-tray slot; 1-4-tongue template; 1-5-overflowing hole; 1-6-back side panel; 1-7-through hole; 2-base; 2-1-base plate; 2-2-retaining wall; 2-3-raised line; 3-palate catch; 4-cutting ferrule; 5-snap close.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Pallet designed by the present invention, comprises three-decker, is respectively the tray body 1 in intermediate layer, is positioned at the palate catch 3 above tray body 1 and is positioned at base 2 below tray body 1.Tray body 1 is carry out on the basis of existing technology perfect, and it comprises: handle 1-1; Pallet side wall 1-2; Tray slot 1-3; Tongue template 1-4.It is designed to solid slab at the middle part of tray body unlike the prior art, i.e. tongue template 1-4, and it is not provided with overflowing hole; In addition, the middle part of pallet side wall 1-2 is outwardly curved, and pallet side wall 1-2 tip edge is designed with inside crimping, changes the vertical plane design of traditional tray side, adds Vertical dimension dislocation power when opposing die takes out.In addition, unlike the prior art, the aperture be inside pallet, overflowing hole involved in the present invention is less than the aperture in outside to the shape of overflowing hole 1-5, in bell mouth shape, like this in die taking-up process, prevent modeling composition from dislocating from pallet, increase frictional force and retention; Certainly, in order to better retention effect, overflowing hole 1-5 can be designed as strip.Handle 1-1 designed by the present invention is fixedly connected on the rear of tray body 1, same plane is positioned at tray slot 1-3, but not be positioned at the below of tray slot 1-3, namely overflowing hole 1-5 has also been set up in the position of handle and pallet junction in the prior art, overcomes and does not have overflowing hole 1-5 herein in prior art and the technological deficiency causing the easy demoulding in this place.
In order to palate catch 3 being fixed on directly over tongue template 1-4, by arranging the back side panel 1-6 vertical with tray body 1 in the rear end of tray body 1, back side panel is provided with through hole 1-7, through hole is divided into two-layer up and down, palate catch 3 is also provided with the overflowing hole with same shape in tray body 1, the rear end of palate catch 3 is provided with two projections matched with through hole 1-7, and select projection to insert upper strata through hole or lower via hole according to the height of different people palatine, namely palatine height person inserts hole, upper strata.
Base 2 designed by the present invention is made up of base plate 2-1, the retaining wall 2-2 being positioned at base plate periphery and the raised line 2-3 that is positioned at base plate inner circumferential; Base 2 is connected with tray body 1 near opening is detachable; The handle 1-1 of tray body is provided with for being fixed on by base 2 outside tray body and the cutting ferrule 4 matched with base plate retaining wall 2-2, and cutting ferrule 4 can slide on handle 1-1; Cutting ferrule 4 is provided with the sleeve be socketed in outside handle 1-1, sleeve is respectively equipped with the upper and lower two pairs of location wings for blocking base plate retaining wall 2-2; The outside of base plate 2-1 rear and retaining wall 2-2 joint is provided with the groove caved inward, this groove coordinates with the lower location wing of cutting ferrule 4, namely assembling rear lower location wing is absorbed in the groove of depression, now go up location wing and block the top of left and right side retaining wall 2-2 near vacancy position respectively, cutting ferrule 4 wall coordinates in indentation, there with retaining wall 2-2, both wall thickness is identical, and the retaining wall 2-2 structure that is connected with location wing is in aggregates, is centered around the outside of pallet side wall.
The conveniently assembling of cutting ferrule 4 and dismounting, the present invention is provided with snap close 5 at the handle 1-1 end of tray body, and this snap close 5 is elastic construction, can outwards or in handle move, and after cutting ferrule 4 installs, can the handle between snap close 5 and tray body 1 slide.
Adopt said apparatus high accuracy can produce die, concrete grammar is as follows: during delivery, first checks that whether tray substrate is good with master tray maintenance, checks whether slip card article is firmly combined with the tray substrate of both sides, mix up modeling composition again, this device is particularly suitable for dentistry alginic acid salt modeling composition.Alginate impression material water is taken by certain powder water ratio, add in rubber cup, mix cutter with tune to be in harmonious proportion to butyrous, modeling composition is first put into pallet on a small quantity, and mix cutter by modeling composition part press-in tray bottom and the overflowing hole of front-rear side walls with adjusting, make die material form modeling composition plane outside overflowing hole and between base plate, then die material is piled pallet.The pallet that die material is housed is put into patient oral cavity, and be pressed into the upper of patient or mandibular dentition, denture after the press-in of first pallet rear portion during press-in, slow in pallet front portion press-in denture again, now unnecessary die material part is anterior from pallet rear portion press-in pallet, from the two side of pallet, 1/3rd overflow, part die material continues to discharge from overflowing hole to form modeling composition plane under pressure outside overflowing hole and between base, and not as common pallet die material overflow from overflowing hole and pallet rear portion, after flowing out from overflowing hole, die material can adhere to oral cavity everywhere on soft tissue, patient is easily caused to feel sick the discomforts such as foreign body, the die material overflowed from palatine can adhere to soft palate district, even entering bottleneck throat causes rapidly patients ' vomiting to react.This device due to pallet overflowing hole comparatively large, pallet rear design has back side panel, and during delivery pallet rear portion be first pressed into denture can reduce largely die material overflowing to oral cavity each soft tissue, thus reduce the senses of discomfort such as patient is nauseating greatly.Doctor with the hands forefinger pins the middle part of base retaining wall both sides, pallet is made to be stabilized in a position, after modeling composition in waiting tray solidifies, the pallet of subsidiary patient teeth's die is carefully taken out in mouth, the hand-held pallet of doctor anterior handle during taking-up, utilize tilting power, impression tray rear portion is allowed first to depart from oral cavity palatine, because tooth resistance in district's is minimum for this reason, negative pressure between the power destruction impression tray that easy utilization is relatively little and oral cavity tissue, and the palate baffle plate at pallet rear portion strengthens the anti-dislocation power of Vertical dimension of this region die greatly, after ensureing force, modeling composition is not separated with pallet, and then take off impression tray along labial teeth direction.Die is after sterilization dries up, and doctor is on the other hand by die end thereof contacts Gypsum Fibrosum oscillator, and another hands is slowly filled into adjusting the Gypsum Fibrosum mixed on die, until Gypsum Fibrosum covers whole die, after gypsum sets, takes out plaster model, completes the making of oral cavity model.Die is in the process of filling with mould Gypsum Fibrosum, formed to prevent model drum, Gypsum Fibrosum oscillator need be used, but due to the high dither of Gypsum Fibrosum oscillator, easily cause and fill with in mold process, die is separated with pallet, but even if apparatus of the present invention can make die and pallet under the shaking force of high frequency appoint keep both combine closely.When being stained with the correction patient delivery of bracket to upper mandibular dentition lip side or tongue side, the resistance produced when die departs from from oral cavity due to correction adnexaes such as orthodontic brackets is very big, the denture of the wrong jaw patient anatomical features that inside and outside the large cervical region of the bizet of uneven and corona own is little own, and the powerful negative pressure formed between die and oral cavity tissue and saliva, its die takes out journey from oral cavity tissue, die is very easily separated from pallet, the tubaeform particular design in this pallet overflowing hole, and unique cambered design etc. of pallet buccal aspect both increases the strength of resisting die and being separated from pallet, base plate cover crosses the design of 2/3rds of tray bottom and pallet both sides of the edge height, modeling composition is made to form a drag die plane in the inner side of the outermost side floor panels of pallet, fill with mold process for die taking-up process and die and powerful opposing displacement and the strength of deformation are provided.