KR20140007778A - Upper jaw partual denture manufacturing method using mesh type of glass fiber - Google Patents

Abstract

The manufacturing method of a prosthetic appliance for the upper jaw comprises a step of closely adhering a fixing leg of a partial prosthetic appliance in the upper part of a glass fiber frame; a step of polymerizing by combining the upper part and the lower part of the flask and pressing the glass fiber, the partial prosthetic appliance and a resin; and a step of completing the final partial prosthetic appliance for the upper jaw by separating the partial prosthetic appliance for the upper jaw after completion of the polymerization, polishing and abrading. According to the present invention, a manufacturing method of a partial prosthetic appliance for the upper jaw is provided, which is strong against various stress and external impacts while being thin and light by using a mesh type glass fiber, is able to minimize the time for manufacturing a partial prosthetic appliance, has a beautiful appearance as transparent materials are applicable, and provides the effect that no irritation feeling is provided to a user by minimizing the thickness. [Reference numerals] (S100) Manufacture main model after obtaining intra-oral impression by using individual tray from jaw having natural teeth; (S102) Manufacture lead partial prosthetic appliance by aligning artificial teeth after manufacturing bite plate with wax from main model; (S104) Put lead partial prosthetic appliance with artificial teeth aligned into flask, firstly bury under gypsum and harden it; (S106) Coat gypsum releasing agent on gypsum cast, which has been hardened after being firstly buried under gypsum, secondly bury under gypsum, and harden it with combining upper part and lower part; (S108) Once secondly buried gypsum is hardened, melt wax in bite plate by putting flask into hot bath, and separate upper part and lower part of flask; (S110) Manufacture mesh type glass fiber frame, fill resin in upper part and lower part of flask, and fix hardened glass fiber frame to top of filled resin; (S112) Position to closely adhere fixing leg of partial prosthetic appliance to top of glass fiber frame; (S114) Polymerize by pressing glass fiber, partial prosthetic appliance and resin after combining upper part and lower part of flask; (S116) Separate partial prosthetic appliance for upper jaw from flask, and polish to complete final partial prosthetic appliance for upper jaw

Description

Upper jaw partual denture manufacturing method using mesh type of glass fiber}

The present invention relates to a method for manufacturing a maxillary partial prosthesis, and more particularly, to a method for manufacturing maxillary partial prosthesis using glass fibers in the form of a mesh.

Generally, the entire upper teeth, called dentures or complete dentures, are prostheses for restoring oral dysfunction, such as facial deformation, chewing, and pronunciation, for total tooth defects. Dentures consist of a portion of the bottom for obtaining fats and oils on the mucosa, and a portion of an artificial tooth for chewing. A resin material is used for the bottom material, and a ceramic material and a resin tooth are used for the artificial tooth. .

Korean Patent No. 10-110156, published Jan. 02, 2012, discloses a method for manufacturing dentures using glass fibers in mesh form. According to the registered patent, after obtaining the impression in the mouth using the individual tray from the edentulous jaw to produce a main model, after the occlusal production using the wax from the main model to produce artificial teeth by arranging the artificial teeth, the artificial teeth are arranged Hardening the first lead denture in a flask and then hardening it with gypsum, applying a gypsum separation agent on the hardened gypsum and burying the second gypsum to combine the upper and lower caps of the flask. Hardening, when curing of the secondary buried gypsum is completed, the flask is immersed in a boiling water to dissolve the occlusal wax, and then the upper and lower caps of the flask are separated, and the glass of the mesh form cured using the main model. Fabricating the fiber frame, the resin is transferred to the upper and lower portions of the flask and then the cured glass fiber frame is placed on the top of the resin. Determining, combining the upper and lower caps of the flask, and then polymerizing by pressing the glass fiber and resin, and after the polymerization is completed, separating the denture from the flask to complete the final denture after finishing and polishing, The manufacturing of the cured glass fiber frame using the main model includes the steps of applying a wax separator to the main model and attaching a wax sheet; Filling the partial resin into the resin, disposing a glass fiber in the form of a mesh on top of the wax sheet, inserting the main model on which the glass fiber is placed into a vacuum apparatus, and pressing the vacuum in a vacuum state, and in the vacuum state. Curing the glass fibers in a device equipped with a lamp, and the main model pressed by using a wax After melting the sheet, the step of separating the cured glass fibers from the main model, characterized in that the thin, light, yet resistant to a variety of stress and external impact using the glass fiber in the form of mesh, to minimize the time to produce dentures In addition to being able to apply a transparent material, the aesthetics are also excellent, and by minimizing the thickness of the dentures, it does not give foreigners a feeling of foreign body.

However, the registered patent relates to a complete denture and corresponds to a technology that can be used when there are no remaining teeth. That is, there is a limit that it is difficult to apply to the partial prosthesis applied when there is a natural tooth that is not extracted.

The present invention has been invented to solve the above problems, the technical problem to be achieved by the present invention is thin and light using a mesh-shaped glass fiber, but also resistant to a variety of stress and external impact, it is possible to minimize the time to produce a partial prosthesis In addition, it is possible to provide a transparent material can be applied to provide a method of making the maxillary portion prosthesis that can achieve the effect of not exposing the wearer by minimizing the thickness of the denture and excellent aesthetics.

The maxillary partial prosthesis manufacturing method according to the present invention for achieving the above technical problem,

After taking the impression in the oral cavity using the individual tray from the teeth of the natural teeth remaining to produce a main model, after the occlusal phase from the main model to produce artificial lead by arranging artificial teeth, the artificial teeth The first part of the lead prosthesis arranged in a flask and the first step of hardening after gypsum, the hardened, the first buried gypsum is applied to the gypsum separation agent on the hardened gypsum, the second buried gypsum and the upper end of the flask Combining and lowering the lower box; when curing of the secondary buried gypsum is completed, the flask is immersed in boiling water to melt the occlusal wax, and the upper and lower boxes of the flask are separated. After application, a wax sheet is attached, a plurality of holes are made in the wax sheet, and a partial resin is filled in the perforated holes, After placing the glass fibers in the form and inserting the main model in which the glass fibers are placed in a vacuum apparatus and crimped in a vacuum state, the main model pressed in the vacuum state to cure the glass fibers in the device equipped with a lamp and Dipping the cured main model in a hot water to melt a wax sheet and then separating the cured glass fibers from the main model to produce a mesh fiberglass frame, the resin is transferred to the upper and lower parts of the flask and hardened Fixing the glass fiber frame to the top of the resin, the step of placing the fixing leg of the partial prosthesis on the upper part of the glass fiber frame, and combining the upper and lower caps of the flask and then the glass fiber and the partial prosthesis and resin Pressing to polymerize, and after the polymerization is completed, the maxillary partial prosthesis is By separating is characterized in that after finishing and polishing comprising the step of finish the upper portion of the prosthesis.

In addition, the step of placing the fixing leg of the partial prosthesis close to the top of the glass fiber frame,

Among the plurality of eyes provided in the glass fiber mesh to pass from the upper side to the lower side of the one eye and again passing from the lower side to the upper side of the other eye to place the fixing leg of the prosthesis of the partial prosthesis close to the top It is preferably a step.

In addition, the resin is preferably made of 1 to 5 parts by weight of ultraviolet curing agent, 1 to 3 parts by weight of zirconia, and 1 to 3 parts by weight of alumina based on 100 parts by weight of the basic resin PMMA.

According to the present invention, the glass fiber in the form of a mesh is thin and light, resistant to various stresses and external impacts, and can minimize the time for manufacturing the partial prosthesis, and also can apply a transparent material, so the aesthetics are excellent, and the thickness Provided is a method for manufacturing a maxillary partial prosthesis that can achieve the effect of not giving foreigners a feeling of foreign body by minimizing the size of the wearer.

1 is a flow chart showing the main process of the method for manufacturing the maxillary partial prosthesis using the glass fiber of the mesh form according to the present invention, and
Figure 2 is a photograph showing an example of the appearance of the maxillary partial prosthesis produced according to the method for producing the maxillary partial prosthesis using the glass fiber of the mesh form of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

In describing the embodiments of the present invention, descriptions of technical contents which are well known in the technical field to which the present invention belongs and are not directly related to the present invention will be omitted. This is to more clearly without obscure the subject matter of the present invention by omitting unnecessary description. Meanwhile, in the present specification, a preferred embodiment of the present invention has been disclosed, and although specific terms are used, it is only used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the present invention. It is not intended to limit the scope. It will be apparent to those skilled in the art that other modified embodiments based on the technical idea of the present invention can be implemented in addition to the embodiments disclosed herein.

Hereinafter, the preferred maxillary partial prosthesis manufacturing method of the present invention will be described in detail with reference to the reference picture. 1 is a flow chart illustrating the main process of the method for manufacturing the maxillary partial prosthesis using the glass fiber of the mesh form according to the present invention.

[Reference picture 1]

First, a precise impression in the oral cavity is obtained by using a personal tray from the patient's teeth. At this time, the individual tray takes a ready-made tray and acquires the first intraoral impression, makes a research model, and then makes a personal tray with the research model. The individual tray is intended to obtain a precise impression by supplementing the problem of the ready-made tray that the impression material is not accurately applied to the gums according to the difference in the oral structure of each patient. The final cast model is produced by using gypsum or the like through the impression obtained above (step S100).

[Reference picture 2]

When the production of the main model is completed, the occlusal phase is manufactured by using wax from the main model, and artificial teeth are arranged to produce lead dentures. The occlusal phase is manufactured using paraffin wax, so that only dentures remain on the gypsum in order to convert the lead dentures to resins in the gypsum investment step described later. Arrangement of the artificial teeth is fixed to the occlusal phase and then arranged one by one to complete the formation of the gingiva (Gingiva) to complete the final lead partial prosthesis (step 102).

[Reference picture 3]

The artificial dentures are placed in the lower dentures and placed in a lower flask and hardened after the first investment with a gypsum to the main model (step 104). This step is to convert the denture base of lead denture into resin and to separate the denture and main model primarily by curing the gypsum only to the main shape height.

[Reference picture 4]

After the primary buried gypsum is cured, a gypsum separator is applied onto the cured gypsum, and then the gypsum is secondaryly buried to the denture height and then hardened by combining the upper and lower caps of the flask.

[Reference picture 5]

When the curing of the secondary buried gypsum is completed, the flask is immersed in boiling water to soften the wax on the lead denture and the upper and lower boxes of the flask are separated (step 108). When the flask is removed, only the dentures are arranged in the lower box, and the main model is separated in the upper box.

After the wax separator is applied to the main model, a wax sheet is attached. The thickness of the wax sheet of the present process serves as a space in which the resin is actually filled in the process of polymerizing the glass fiber and the resin, it is preferable that the wax sheet is 0.3mm to 0.6mm. When using a 0.3mm thickness, the resin thickness of the denture is too thin, there is a problem that the bonding strength with the cured glass fiber is falling, if the thickness exceeds 0.6mm there is a problem that the wear of the patient is poor.

[Reference picture 6]

A plurality of holes are made in the wax sheet spread over the main model. Many perforated holes are filled with resin as thick as a wax sheet. At this time, the partial resin to be filled is to indicate the thickness of the wax sheet, that is, the thickness of the resin is filled during the polymerization process, the curing is in progress during the light curing (Firing Curing) is fixed tightly to the glass fiber.

[Reference photo 7]

Glass fibers are placed on top of the resin sheet filled with wax. At this time, the glass fiber is preferably used in the form of a mesh. In general, glass fiber is not corroded and has high tensile strength, but it is difficult to insert glass fiber evenly into denture base resin. The longer or thicker glass fiber is, the stronger the strength is, but the bond strength with resin is poor. there was. The present invention is to solve this problem by manufacturing the glass fiber in the form of a mesh to the resin in the process of polymerizing the resin and the glass fiber while filling the resin between the grid of the glass fiber, the resin is polymerized in the state of strongly biting the glass fiber resin It is possible to increase the bonding strength of the glass fiber, and furthermore, because the glass fiber can be used to the maximum usable, there is a unique effect to increase the strength of the dentures.

The main model on which the glass fibers are placed is placed in a vacuum apparatus capable of creating a vacuum state and pressed. This step is to make the wax sheet and the glass fiber by maintaining the same shape as the oral shape of the main model in the process of being closely adhered to the main model by hardening by making a vacuum state.

The main model, which is pressed and maintained in the vacuum state, is inserted into a lamp (Light Curing Unit). Glass fiber hardens when exposed to light, so the glass fiber and resin are cured in the lamp-equipped device. At this time, the curing time is preferably performed for 2 to 5 minutes. If the curing time is less than 2 minutes, the glass fiber may not be cured. If the curing time is exceeded, the curing may be considerably progressed. It is preferable not to exceed silver.

As described above, after applying the wax separator to the main model, a wax sheet is attached, a plurality of holes are made in the wax sheet, a partial resin is filled in the perforated holes, and mesh fibers are placed on the top of the wax sheet. After inserting the main model in which the glass fibers are placed in a vacuum apparatus, the main model is pressed in a vacuum state, and the main model pressed in the vacuum state is cured in the apparatus equipped with a lamp, and the main model in which the glass fibers are cured is heated in a hot water. Resin is prepared by dissolving the wax sheet and then dissolving the cured glass fiber from the main model, and then injecting the resin into the upper and lower parts of the flask and then hardening the glass fiber frame. It is fixed to the top (step S110).

When the curing is completed, the main model is released from vacuum and then immersed in a hot water or poured with warm water to melt the wax sheet. As the wax sheet melts, the main model and the cured glass fibers are separated. At this time, the partial resin filled in the perforated wax sheet is fixed to the glass fiber while being hardened (step 112).

The resin is transferred to the flask on which the denture is arranged and the cured glass fibers are fixed, and then the upper and lower flasks are combined. Next, the flask is combined with the upper and lower caps and then polymerized in a resin curing apparatus (Light Curing Unit) after pressing the glass fiber and the resin. The resin transferred in the pressing process is pressurized by the height of the partial resin tightly fixed to the glass fiber, and the glass fiber is positioned at the center of the resin.

[Reference picture 8]

After the polymerization is completed, the denture is separated from the flask to finish and manufacture the final partial prosthesis as shown in FIG. 2 after finishing and polishing (step 116).

In this way, after taking the impression of the oral cavity by using the individual tray from the teeth of the natural teeth remaining, and manufacturing the main model, after producing the occlusal phase using the wax from the main model to produce artificial prosthesis by arranging artificial teeth Once made, the artificially-arranged lead partial prosthesis is placed in a flask and first hardened with gypsum, followed by curing. After the first buried gypsum is hardened, a gypsum separator is applied to the hardened gypsum, and the second buried gypsum is Combining the upper and lower caps of the flask to cure, and when the curing of the secondary buried gypsum is completed, putting the flask into hot water to dissolve the occlusal wax and separating the upper and lower caps of the flask. After applying a wax separator to the model, attach a wax sheet, drill a plurality of holes in the wax sheet, and then fill in the partial resin in the holes. Placing the glass fiber in the form of a mesh on the top of the wax sheet and inserting the main model in which the glass fiber is placed in a vacuum apparatus and crimped in a vacuum state, the glass fiber in the apparatus equipped with a lamp Preparing a mesh fiberglass frame consisting of curing the glass fiber and hardening the glass fiber in a hot water by melting the wax sheet and separating the cured glass fiber from the glass fiber model. After the resin is transferred to the lower box, the step of fixing the cured glass fiber frame to the top of the resin (step S110), the step of placing the fixing leg of the partial prosthesis on the top of the glass fiber frame in close contact (step 112), the plate Combining the upper and lower caps of the sc, followed by polymerization by pressing the glass fibers, the partial prosthesis and the resin (step 114), and The present invention consists of a step (step 116) of separating the maxillary partial prosthesis from the flask after completion of the polymerization to complete the final maxillary partial prosthesis after finishing and polishing.

The step of placing the fixing leg of the partial prosthesis close to the top of the glass fiber frame,

Among the plurality of eyes provided in the glass fiber mesh to pass from the upper side to the lower side of the one eye and again passing from the lower side to the upper side of the other eye to place the fixing leg of the prosthesis of the partial prosthesis close to the top It is preferably a step.

In addition, the resin is preferably made of 1 to 5 parts by weight of UV curing agent, 1 to 3 parts by weight of zirconia, and 1 to 3 parts by weight of alumina based on 100 parts by weight of basic PMMA resin. Hereinafter, it demonstrates with an Example and a comparative example.

Example 1

2 parts by weight of the ultraviolet curing agent, 1 part by weight of zirconia, and 3 parts by weight of alumina based on 100 parts by weight of PMMA resin

[Example 2]

3 parts by weight of UV curing agent, 3 parts by weight of zirconia, and 1 part by weight of alumina based on 100 parts by weight of PMMA resin

[Example 3]

3 parts by weight of ultraviolet curing agent, 3 parts by weight of zirconia, and 1.5 parts by weight of alumina based on 100 parts by weight of PMMA resin

Comparative Example 1

3 parts by weight of UV curing agent, no zirconia, and 3 parts by weight of alumina based on 100 parts by weight of PMMA resin

[Comparative Example 2]

3 parts by weight of an ultraviolet curing agent, 3 parts by weight of zirconia, and no alumina to 100 parts by weight of PMMA resin

In Examples 1 to 3, both zirconia and alumina were added. On the other hand, in Comparative Example 1, only alumina was added without zirconia, and in Comparative Example 2, only zirconia was added without alumina.

The maxillary partial prostheses prepared by Examples 1 to 3 and Comparative Examples 1 and 2 were evaluated for durability when used for a long time.

100 hours 200 hours 500 hours 1,000 hours 2,000 hours 3,000 hours 5,000 hours Example 1 ◎ ◎ ◎ ◎ ◎ ○ ○ Example 2 ◎ ◎ ◎ ◎ ◎ ○ ○ Example 3 ◎ ◎ ◎ ◎ ◎ ◎ ◎ Comparative Example 1 ◎ ○ ○ △ △ × × Comparative Example 2 ◎ ○ ○ △ × × ×

◎ indicates that there is no abnormality in the resin and is in good condition, ○ indicates that there is a slight abnormality in the resin. This occurs and the fixed leg is exposed, indicating a condition requiring immediate replacement.

As described above, when the partial prosthesis is included, a fixing leg is included, unlike a general denture, and there is a problem in that the resin is damaged when used for a long time. 1 to 5 parts by weight of the UV curing agent is added to the PMMA base resin, but less than 1 part by weight, the curing is insufficient, and when it exceeds 5 parts by weight, the strength decreases, resulting in resin wear due to the fixing legs.

Zirconia is a material commonly used in the field of aesthetic prosthesis. It cannot be made by high strength casting method, so it is precisely and accurately manufactured by computer. Once broken, alumina is also used in all ceramic prosthetics, which is a kind of aesthetic prosthesis. A series of inserams are used.

In addition, 1 to 3 parts by weight of zirconia is added to the basic resin, but when zirconia is added in an amount less than 1 part by weight, there is a problem in that the transparency is lowered.

In addition, 1 to 3 parts by weight of alumina is added to the basic resin, but when the alumina is added to less than 1 part by weight, a problem occurs that the hardness is insufficient, and when more than 3 parts by weight is added, a problem that is easily broken occurs.

According to the present invention, the fixing leg of the partial prosthesis on the top of the glass fiber frame, including the step of passing from the upper side to the lower side of the one eye and the upper side again from the lower side of the other eye among the plurality of eyes provided in the glass fiber mesh It is important to note that by placing it in close contact, the fixing leg is applied during the chewing process to reduce the fracture of the resin.

Claims (2)

In the method of manufacturing the maxillary partial prosthesis,
After taking the impression in the oral cavity using the individual tray from the remaining teeth of the natural teeth to produce the main model (step S100), after producing the occlusal phase using the wax from the main model to arrange the artificial teeth to produce a lead partial prosthesis Step (step S102), the lead partial prosthesis on which the artificial teeth are arranged is placed in a flask and hardened after the first investment with gypsum (step S104). The gypsum separator is applied onto the hardened gypsum. After the second buried gypsum to harden by combining the upper and lower caps of the flask (step S106), when the curing of the secondary buried gypsum is completed, the flask is dissolved in boiling water to melt the occlusal wax and then Separating the upper and lower boxes (step S108), after applying a wax separator to the main model, a wax sheet is attached and a plurality of holes in the wax sheet and then in the perforated holes Fill the partial resin and place the glass fiber in the form of mesh on the top of the wax sheet, insert the main model in which the glass fiber is placed in a vacuum apparatus and crimp in a vacuum state, the lamp is equipped with the main model pressed in the vacuum state A step of manufacturing a glass fiber frame in the form of a mesh consisting of curing the glass fiber in the apparatus, the main model cured glass fiber in hot water to melt the wax sheet and then separate the cured glass fiber from the main model, the plate Fixing the hardened glass fiber frame after the transfer of the resin to the upper and lower portions of the sc with the top of the resin (step S110), the step of placing the fixing leg of the partial prosthesis in close contact with the top of the glass fiber frame (step S112) ), The upper and lower caps of the flask are combined and then polymerized by pressing the glass fiber and the partial prosthesis and resin. A step (step S114), and a step of separating the maxillary partial prosthesis from the flask after the polymerization is completed to complete the final maxillary partial prosthesis after finishing and polishing (step S116),
The step of placing the fixing leg of the partial prosthesis close to the top of the glass fiber frame,
Among the plurality of eyes provided in the glass fiber mesh to pass from the upper side to the lower side of the one eye and again passing from the lower side to the upper side of the other eye to place the fixing leg of the prosthesis of the partial prosthesis close to the top Method for producing a maxillary partial prosthesis using glass fiber of the mesh form, characterized in that the step. The method of claim 1,
The resin is a maxillary partial prosthesis using a glass fiber in the form of a mesh, characterized in that 1 to 5 parts by weight of UV curing agent, 1 to 3 parts by weight of zirconia, and 1 to 3 parts by weight of alumina, based on 100 parts by weight of the basic resin. How to make.

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