CN111297502A

CN111297502A - BioHPP bridge false tooth and preparation process thereof

Info

Publication number: CN111297502A
Application number: CN202010114602.5A
Authority: CN
Inventors: 朱小成
Original assignee: Shanghai Ouye Teeth Technology Co ltd
Current assignee: Shanghai Ouye Teeth Technology Co ltd
Priority date: 2020-02-23
Filing date: 2020-02-23
Publication date: 2020-06-19

Abstract

The invention discloses a BioHPP bridge false tooth, which relates to the field of complete false teeth and comprises a bridge, wherein the bridge is made of BioHPP, a plurality of abutments are formed on the bridge, a baking plastic layer is wrapped outside the abutments, position fixing holes are formed in positions, corresponding to implants, of the bottoms of the abutments, and gum is arranged at the bottoms of the abutments. Aiming at the problem of insufficient wearing and using comfort level in the prior art, the BioHPP bridge has the advantage of light weight, so that the occlusion of a patient is easier, and the wearing comfort level of the artificial tooth of the bridge is improved; in addition, the material elasticity of the BioHPP is more excellent, and the buffer and the shock absorption are realized, so that the damage to bone joints caused by the use of the false teeth is effectively avoided; BioHPP has the advantages of dental plaque resistance, low heat conductivity coefficient, strong surface polishing performance, fine granularity and high surface glossiness, so that the meshed biopHPP bridge is more excellent in physiology and better in bionic effect.

Description

BioHPP bridge false tooth and preparation process thereof

Technical Field

The invention relates to the field of complete dentures, in particular to a BioHPP bridge denture and a preparation process thereof.

Background

For the problem that most of the old people often have teeth in the mouth which fall off, hospitals usually adopt a full-restoration mode to manufacture complete dentures to help patients recover the chewing function of the oral cavity.

For the existing bridge false tooth preparation technology, a pure titanium bridge is processed by adopting a casting and integral forming mode, then porcelain is baked on the pure titanium bridge, and the firmness degree of the porcelain is ensured by detecting the combination of the golden porcelain. When the dental implant is used, the implant is firstly installed in the bone of the upper jaw and the lower jaw of the oral cavity of a patient, and then the bridge denture is fixed with the implant in a screw locking mode.

Because the density of titanium is far greater than the weight of natural teeth, the bridge false tooth made of pure titanium metal greatly increases the labor intensity of occlusion of a patient, and the comfort level of wearing and using of the patient is not high.

Disclosure of Invention

Aiming at the problem of insufficient wearing and using comfort in the prior art, the invention aims to provide the BioHPP bridge denture and the preparation process thereof, further promote the proximity degree of the denture and natural teeth, and greatly improve the wearing and using comfort and experience of a patient.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a bioHPP crane span structure artificial tooth, includes the crane span structure, the material of crane span structure is bioHPP, be formed with a plurality of abutments on the crane span structure, the outer parcel of abutment is provided with the layer of moulding by baking, the abutment bottom has seted up the position fixing hole on corresponding the implant position, the bottom of abutment is provided with the gum.

Through the technical scheme, when the dental bridge is used, the implant is installed in the upper jaw and the lower jaw in the mouth of a patient, and the titanium substrate is fixed with the implant through the screws, so that the bridge denture is fixed in the mouth of the patient. The BioHPP bridge has the advantage of light weight, so that the patient can bite more easily, and the wearing comfort of the denture of the bridge is improved; in addition, the material elasticity of the BioHPP is more excellent, and the buffer and the shock absorption are realized, so that the damage to bone joints caused by the use of the false teeth is effectively avoided; BioHPP has the advantages of dental plaque resistance, low heat conductivity coefficient, strong surface polishing performance, fine granularity and high surface glossiness, so that the meshed biopHPP bridge is more excellent in physiology and better in bionic effect.

The present invention in a preferred example may be further configured to: and a titanium substrate is fixed in the retention hole.

Through above-mentioned technical scheme, the material of BioHPP is more fragile, if adopt the screw directly to fix through the position-fixing hole, the problem that position-fixing hole opening part and implant contact butt easily take place to collapse up, so at the downthehole titanium base of installation of position-fixing, the titanium base is the pipe form, realizes fixing between BioHPP crane span structure artificial tooth and the implant as the transition piece.

A preparation process of a BioHPP bridge denture comprises the following steps:

step S1, obtaining the internal information of the oral cavity of the patient;

step S2, manufacturing a bridge frame by taking BioHPP as a raw material through the acquired internal information of the oral cavity of the patient, wherein a plurality of abutments are formed on the bridge frame;

step S3, forming a position fixing hole on the abutment;

step S4, mounting and fixing a titanium substrate in the retention hole;

step S5, detecting and checking the size of the bridge;

step S6, performing baking molding on the bridge frame to form baking molding teeth;

and step S7, manufacturing gingiva on the molded tooth and the bridge to form a BioHPP bridge denture.

By adopting the technical scheme, the BioHPP bridge has the advantage of light weight, so that the patient can bite more easily, and the wearing comfort of the denture of the bridge is improved; in addition, the material elasticity of the BioHPP is more excellent, and the buffer and the shock absorption are realized, so that the damage to bone joints caused by the use of the false teeth is effectively avoided; BioHPP has the advantages of dental plaque resistance, low heat conductivity coefficient, strong surface polishing performance, fine granularity and high surface glossiness, so that the meshed biopHPP bridge is more excellent in physiology and better in bionic effect.

The present invention in a preferred example may be further configured to: the specific operation manner of step S1 is: the feeding was handed to the patient for occlusion and the female mold was obtained.

Through the technical scheme, the intraoral information of the patient is acquired by adopting a mode of occluding the feeding of the patient.

The present invention in a preferred example may be further configured to: step S2 specifically includes the following steps:

step 21, manufacturing a plaster model of the oral cavity of the patient through the female die, and scanning the plaster model by using a three-dimensional scanner to obtain the shape data of the target denture;

step 22, processing the false tooth shape data by using CAD software to complete bridge frame design;

and 23, outputting the designed data to CAM equipment, cutting a BioHPP cake at a high speed to form a bridge and forming an abutment on the bridge.

Through above-mentioned technical scheme, adopt the mode processing BioHPP crane span structure of machining, firstly, the BioHPP material possesses good physiological properties, and secondly, the mode of machining can effectively avoid the production of BioHPP crane span structure internal stress, improves the manufacturing accuracy of BioHPP crane span structure greatly to improve the comfort level that the artificial tooth was worn to the BioHPP crane span structure.

The present invention in a preferred example may be further configured to: the BioHPP cake is formed by high-temperature die casting of granular raw materials or waste blocks of the BioHPP cake in the last processing.

Through the technical scheme, the BioHPP cake is machined to manufacture the BioHPP bridge false tooth, and the cut leftover material of the BioHPP cake can be re-manufactured into the BioHPP cake after high-temperature hot-pressing treatment for next manufacturing, so that the waste of a BioHPP raw material is greatly avoided, and resources are saved.

step S21, preparing a die-casting die containing a cavity by using the embedded material as a raw material through a female die and adopting a lost wax method;

and step S22, heating the BioHPP granular raw material at high temperature, injecting the raw material into a die-casting die through a die-casting machine, and cooling and molding.

Through the technical scheme, the BioHPP bridge is processed in a die-casting mode, firstly, the BioHPP material has excellent physiological performance, secondly, the equipment cost of the die-casting processing is low, the implementation is easy, thirdly, the BioHPP is used for forming the BioHPP bridge, the raw materials are fully utilized, the operation of recycling and retreating is not needed, and the waste of resources and energy sources is effectively reduced.

The present invention in a preferred example may be further configured to: in step S4, the titanium substrate is secured within the retention hole by the adhesive cement.

Through the technical scheme, the adhesive cement is an adhesive matched with a BioHPP material.

The present invention in a preferred example may be further configured to: in step S7, the BioHPP bridge denture is cleaned and sterilized by high-temperature steam after being formed.

Through the technical scheme, the method is used for ensuring the cleanness and sanitation of the prepared BioHPP bridge false tooth.

In summary, the invention includes at least one of the following beneficial technical effects:

(1) by selecting the BioHPP bridge, the BioHPP bridge false tooth has the advantage of light weight, so that the patient can bite more easily, and the wearing comfort of the bridge false tooth is improved; in addition, the material elasticity of the BioHPP is more excellent, and the buffer and the shock absorption are realized, so that the damage to bone joints caused by the use of the false teeth is effectively avoided; the BioHPP has the advantages of dental plaque resistance, low heat conductivity coefficient, strong surface polishing performance, fine granularity and high surface glossiness, so that the meshing physiology of a BioHPP bridge is more excellent, and the bionic effect is better;

(2) further, the BioHPP bridge is processed in a machining mode, wherein the BioHPP material has excellent physiological performance, and the machining mode can effectively avoid the generation of internal stress of the BioHPP bridge and greatly improve the manufacturing precision of the BioHPP bridge so as to improve the wearing comfort of the false tooth of the BioHPP bridge;

(3) furthermore, the BioHPP bridge is processed in a die-casting mode, wherein the BioHPP material has excellent physiological performance, the die-casting processing equipment is low in cost and easy to implement, and the BioHPP is used for forming the BioHPP bridge, so that raw materials are fully utilized, the operation of recycling and reprocessing is not needed, and the waste of resources and energy is effectively reduced.

Drawings

FIG. 1 is a block flow diagram of the process of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a bioHPP crane span structure artificial tooth, includes the crane span structure, and the material of crane span structure is bioHPP, is formed with a plurality of abutments on the crane span structure, and the outer parcel of abutment is provided with the layer of moulding by baking, has seted up the position-fixing hole on the corresponding implant position in abutment bottom, and the downthehole titanium basement that is fixed with of position-fixing, the bottom of abutment is provided with the gum. When the bridge denture is used, the implant is installed in the upper jaw and the lower jaw in the mouth of a patient, and the titanium substrate and the implant are fixed through the screws, so that the bridge denture is fixed in the mouth of the patient.

The most common materials of the bridge in the market are titanium and zirconium, and the comparison of the material properties of BioHPP, titanium and zirconium is shown in the following table:

material	BioHPP	Titanium (IV)	Zirconium
				Specific gravity of	1.4 g/	4.5 g/	6.5 g/
Hardness of	30HV	300-400HV	1.2HV
				Elasticity	4.2-4.8 MPa	115000 MPa	205000 MPa
Coefficient of thermal conductivity	Is low in	Height of	Is low in
				Surface polishing characteristics	Is very good	Difference (D)	Good taste

According to the data, the weight of the BioHPP is about one fourth of that of titanium and one sixth of that of zirconium for the bridge with the same volume, so that the BioHPP has the advantage of light weight, the occlusion of a patient is easier, and the wearing comfort of the denture of the bridge is improved; in addition, comparing the elasticity parameters of the material, we can show that the material elasticity of BioHPP is more excellent, the materials of titanium and zirconium are harder, and in the process of occlusion of the hard bridge denture, the impact is large, the bone joint is greatly injured, and the elasticity of the natural jaw is 2-12HV, so the BioHPP is a material which is very close to the natural jaw, and the physiological property of occlusion is more excellent.

In addition, BioHPP has plaque resistance, has low thermal conductivity coefficient, and is not suitable for being transmitted to jaw bones through a bridge frame when the false teeth bite objects with high temperature; the BioHPP has the surface polishing characteristic, the surface glossiness of the denture is high, and the requirement of aesthetic gingiva is met.

Through material performance comparison, can learn, BioHPP's material is more fragile, if adopt the screw directly to fix through the position-fixing hole, the problem that position-fixing hole opening part and implant contact butt easily take place to collapse up, so at the downthehole installation titanium base of position-fixing, the titanium base is the pipe form, realizes fixing between BioHPP crane span structure artificial tooth and the implant as the transition piece.

Example one

A preparation process of a BioHPP bridge denture, as shown in fig. 1, comprising the following steps:

step S1, obtaining the internal information of the oral cavity of the patient; uniformly mixing metal powder and a binder, pressing into a feed, and occluding with a patient to obtain a female die;

step S3, forming screw retaining holes on the pure titanium bridge frame in a machining mode, wherein the screw retaining holes correspond to the positions of the corresponding implant sites, so that the pure titanium bridge frame can be conveniently fixed on the implant by utilizing the threaded connection between the screws and the screw retaining holes;

step S4, mounting and fixing a titanium substrate in the retention hole; the titanium substrate is fixed in the retention hole through the adhesive cement.

Step S5, detecting and checking the size of the bridge; detecting whether the occlusion degree between the upper jaw and the lower jaw reaches a standard, whether the convexity and the length of the BioHPP bridge are the same as those of the designed BioHPP bridge, and whether the processed BioHPP bridge meets the special requirements of doctors or not particularly according to the special requirements of doctors;

the plastic baking process comprises the following steps:

sanding the BioHPP bridge, arranging staggered retention grooves on the abutments, isolating moisture of the sanded BioHPP bridge, keeping the bioHPP bridge dry, facilitating subsequent resin application, and arranging the retention grooves to increase the contact area between the abutments and the resin, thereby improving the connection stability between the resin and the abutments;

coating a metal treating agent on the BioHPP bridge, and drying to increase the adhesive force of the surface of the BioHPP bridge; after the metal treatment agent is coated, the pre-shading paste is coated on the abutment, and photocuring treatment is carried out for 1 minute, so that the adhesive force of the surface of the BioHPP bridge is further enhanced, and the subsequent connection strength between the abutment and resin is improved.

Coating curing glue OP on the abutment, and carrying out color comparison or color coating according to the requirements of doctors and photocuring for 3 to 5 minutes;

photocuring the porcelain on the upper body of the abutment for 3 minutes;

photo-curing the effect resin on abutment OE2 for 3 minutes;

the cut resin 58 and the transparent resin T are photo-cured for 3 minutes on the abutment to finally form a molded tooth on the abutment.

In the resin applying process, a wax knife is used for applying resin, and the resin is softened by the conditioning fluid, so that the shape of the resin is convenient to adjust.

Step S7, manufacturing gingiva on the molded tooth and the bridge to form a BioHPP bridge denture;

the gum manufacturing process comprises the following steps:

coating gum OP photo-curing on the molded teeth and BioHPP bridge for 5 minutes;

sequentially coating gingival resin BG34, photocuring for 3 minutes, gingival resin GUM-D, photocuring for 3 minutes, gingival resin GUM-T, photocuring for 3 minutes and gingival resin GUM-OR among the baked and molded teeth, and photocuring for 3 minutes.

IG3 was coated on the labial ligament of the baked teeth and light-cured for 1 minute.

After the BioHPP bridge false tooth is processed and formed, the false tooth is cleaned and disinfected by high-temperature steam.

Wherein, step S2 specifically includes the following steps:

step 22, using CAD software to perform reverse processing on the denture outline data, adjusting the denture outline data according to the requirements of patients and the suggestions of doctors through the CAD software to complete bridge frame design, and storing the trimmed tooth profile data;

and 23, outputting the designed data to CAM equipment, cutting a BioHPP cake at a high speed to form a bridge and forming an abutment on the bridge. The BioHPP cake is formed by die casting granular raw materials at high temperature or waste blocks of the BioHPP cake in the last processing at high temperature.

In this embodiment, adopt the mode of machining to process the bioHPP crane span structure, one of them, the bioHPP material possesses good physiological properties, two of them, the mode of machining can effectively avoid the production of bioHPP crane span structure internal stress, improve the manufacturing accuracy of bioHPP crane span structure greatly, thereby improve the comfort level that bioHPP crane span structure artificial tooth was worn, three of it, adopt machining bioHPP cake, preparation bioHPP crane span structure artificial tooth, the leftover bits after the cutting of bioHPP cake are through high temperature hot pressing processing, can make bioHPP cake again, be used for next time making, thereby avoided the waste of bioHPP raw materials greatly, resources are saved.

Example two

The difference between the preparation process of the BioHPP bridge denture and the first embodiment is that the step S2 specifically comprises the following steps:

and step S22, after the BioHPP granular raw material is heated at high temperature, the BioHPP raw material in a high-temperature and high-pressure state is injected into a die casting die through a die casting machine, and the raw material is cooled and molded.

In the embodiment, the BioHPP bridge is processed in a die-casting mode, wherein the BioHPP material has excellent physiological performance, the die-casting processing equipment is low in cost and easy to implement, and the BioHPP is used for forming the BioHPP bridge, so that raw materials are fully utilized, the recovery and retreatment operation is not needed, and the waste of resources and energy is effectively reduced.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The BioHPP bridge false tooth is characterized by comprising a bridge, wherein the bridge is made of BioHPP, a plurality of abutments are formed on the bridge, a baking plastic layer is wrapped outside the abutments, a position fixing hole is formed in the position, corresponding to an implant, of the bottoms of the abutments, and gum is arranged at the bottom of the abutments.

2. A biophpp bridge prosthesis according to claim 1, in which a titanium substrate is fixed in the retention holes.

3. A preparation process of a BioHPP bridge denture is characterized by comprising the following steps:

step S1, obtaining the internal information of the oral cavity of the patient;

step S3, forming a position fixing hole on the abutment;

step S4, mounting and fixing a titanium substrate in the retention hole;

step S5, detecting and checking the size of the bridge;

4. The BioHPP bridge denture preparation process of claim 3, wherein the specific operation of step S1 is: the feeding was handed to the patient for occlusion and the female mold was obtained.

5. The BioHPP bridge denture preparation process according to claim 4, wherein step S2 comprises the following steps:

6. The process for preparing a BioHPP bridge denture according to claim 5, wherein the BioHPP cake is high-temperature die-cast from granular raw materials or from waste material blocks of the BioHPP cake in the last processing.

7. The BioHPP bridge denture preparation process according to claim 4, wherein step S2 comprises the following steps:

8. The process of claim 1, wherein in step S4, the ti substrate is fixed in the retention holes by an adhesive cement.

9. The process of claim 1, wherein the BioHPP bridge denture is formed and then cleaned and sterilized by high temperature steam in step S7.