JP5276786B2 - Tooth profile forming film and method for forming artificial crown using the same - Google Patents

Description

The present invention relates to a tooth profile forming film that finely imparts a tooth surface shape before curing in the process of preparing an artificial crown for dental treatment, and a method for forming an artificial crown using the same.

An object of the present invention is to provide a thin film that finally forms the surface shape of an artificial dental crown finely, and secondly, simplification of the process of creating an artificial dental crown for dental caries treatment, especially dental technology. The processing steps required to form an artificial crown mold by a technician are greatly simplified. In addition, a very expensive artificial dental crown material (gold, silver, palladium, etc.) is not wasted. To achieve cost reduction of dental treatment.

When creating a patient's crown, it is created using an artificial crown mold. Conventionally, a crown mold (made of resin such as wax, which is mass-produced regardless of the individuality of the patient, is a pre-made substantially disc shape. A mold with a shape resembling an actual tooth on the upper surface of a disk: hereinafter referred to as a substantially disk-shaped crown mold) is patterned based on the general upper surface shape of an actual tooth. It is thick and mainly has the shape of the upper occlusal portion (for example, Japanese Utility Model Laid-Open No. 60-92512).

Of course, the upper surface occlusal part of the conventional patterned substantially disk-shaped crown mold needs to be in contact with the actual upper teeth. When used, the dental technician and dentist had to make some medical care and treatment corrections for the adjustment of the upper surface and the side periphery.

Well, to explain the treatment process up to the crown treatment, first, the dentist takes the mold of the caries at the hospital (the case where the caries become large and the damage is large, the mold may not be taken. The mold is not essential), but the upper teeth that mesh with each other are taken, and then the mold of the convex base is taken with the caries removed, leaving the prior information on the formation of the artificial crown.
Molding work is performed to restore the original shape with as little discomfort as possible.
In other words, a dentist or the like takes a mold as a material for restoring the original state as dental treatment in a clinic based on a tooth base formed for attaching an artificial crown on a root to be treated.
The number of molds should be many in many aspects, such as the relationship with adjacent teeth, but usually the minimum required mold is used.

Those molds are handed over to the dental technician, and the dental technicians, etc., based on the mold of the tooth base, etc., the dental crown mold (a conventional disk-shaped crown mold imitating the tooth shape on the surface) is the tooth base. A crown creating step is performed in which the entire tooth shape is created by adjusting the upper tooth mold according to the upper tooth mold, and a crown made of metal or the like is created based on this.
In general, the case of inlay treatment is as follows. In the case of a caries whose surface has been severely damaged as shown in the process diagram of the conventional method shown in FIG. After curing to a certain extent, the upper tooth mold is lightly pressed and the upper teeth mold is pressed and removed from the teeth as it is to obtain a mold.
This mold is used to cast and replace with metal.

Therefore, later, as a surface treatment of metal or the like, it was necessary to manually form a peripheral portion and correct an upper surface portion, and to perform cutting for recovering the matched tooth profile.
This method is difficult even for dental technicians for newcomers and inexperienced people, and it may happen that the meshing does not fit well.
In addition, even if the amount of cutting is a small amount, a large amount of expensive metal or the like is discarded on the spot in the situation where a large number of pieces are processed.
Then, using the crown, the dentist actually performs a fine-adjusting and fine-cutting correction treatment to perform a covering treatment. Again, a considerable amount of expensive metal is discarded on the spot.

For example, when repairing the upper occlusal portion of the lower jaw side cavities, a dental technician or the like performs such a crown creation process after covering the dental pedestal mold with an existing substantially disk-shaped crown mold. Then, after making the mold to match the surface shape of the upper teeth facing this, and making the artificial crown mold, the work of cutting or grinding the upper surface occlusal part is performed, the grinding work is It is a laborious and sophisticated work, has a unique surface shape, and requires very skill.
Therefore, there is a problem that the cutting quality of the processed surface is greatly influenced by the technical ability and technical tendency of each dental technician.

In creating a mold for an artificial dental crown that is a medical device, it is an issue to be solved that we want to efficiently create a mold with high conformity that matches the specific individuality, and to provide high quality and more economically. ing.

  Furthermore, an artificial dental crown mold is formed by using an existing substantially disk-shaped dental crown mold corresponding to each individual dental dentition mold, which is different for each patient, and replaced with a dental crown such as metal. Since the coating is performed, the surface of the metal crown is eventually in the shape of the existing substantially disk-shaped crown mold, cutting is necessary, and the amount of metal material used for the artificial crown is not stable. There was a problem.

When the artificial crown is cut to correct the upper occlusal portion of the artificial crown mold, it may become thin or too thick with a skilled level.
Under such circumstances, it has also been requested that expensive artificial crown materials (gold, silver, resin, palladium) should not be used as wastefully as possible while satisfying necessary shape conditions without excess or deficiency.

  In other words, with conventional molds and artificial crown forming methods, it is possible to further improve the processing and modification work on the top surface, uneven thickness due to skill differences, and to reduce the thickness of the artificial dental crown mold and reduce the crown material. There are still problems to be solved such as weight reduction or weight reduction.

Therefore, as described above, in order to avoid labor and skill difference in processing correction of the upper surface occlusal portion, and to remove the surface corresponding to the upper surface portion of the occlusal portion as the upper surface occlusal portion, as the existing substantially disk-shaped crown mold, separation is performed. However, it has been devised and commercialized that only this portion is made of wax in a standard shape.
That is, it is a crown wax pattern in which only the shape of the upper surface portion of the upper surface portion occlusion portion is patterned, standardized, and typified in advance.

Surely, when adopting the substantially discoid crown mold = crown wax pattern of this configuration, it is very possible to separate only the occlusal part which is not directly related to the shape of the tooth base formed on the root. It is possible to use pre-patterned, standardized and typified upper occlusal parts that are difficult to machine, contributing to uniform thickness and approximate quality, and reducing the machining process spent on the occlusal parts However, if we look at the cost, it will certainly be reduced.
2. The side peripheral part of the artificial crown mold having a role of firmly fixing to the tooth base can be dealt with by individually providing a machining step afterwards.
This response requires skill in the machining process.
3. By patterning, stylizing, and typifying the occlusal portion, the amount of cutting can be reduced, and waste of expensive artificial crown material is slightly reduced, and the material cost can be reduced.
This is mainly useful in the above points.

However, this configuration is not sufficient in the following points, and problems have remained in the past.
That means
1. When creating an artificial dental crown mold, the artificial dental crown mold created by molding only the upper surface of the occlusal portion is filled with soft wax between the tooth base model to prevent deformation. The soft wax itself is an element that forms the thick external shape of the completed artificial crown because the opposing tooth molds are engaged and retained while being corrected.
In addition, since only the shape of the upper surface occlusal part is patterned, a joining process of the side peripheral part is necessary, but there is a difference in skill in forming the side peripheral part, and the capacity of the soft wax is constant. In addition, the formation of the side peripheral part is accompanied by correction of the upper surface part of the occlusal part, and the work of the dentist, dental technician, etc. is unexpectedly increased, complicated, and the work amount and technology comparable to the processing of the occlusal part The power demand and the associated high costs remained.
2. The connection between the occlusal part and the side peripheral part may become thick depending on the skill level of the connection work. In addition, the prosthetic crown material may be used thickly. Thus, the thickness of the artificial dental crown was often slightly increased overall.
Japanese Utility Model Publication No. 60-92512 JP 2003-14459 A

The main problems to be solved by the present invention are as follows. 1. Simplify the artificial crown creation process, with the goal of developing a tooth profile forming film formed in a lump by classifying the pattern of the surface and side edges of the artificial crown. In particular, the processing steps necessary for the formation of an artificial crown mold by a dental technician are greatly simplified, and the usage of the artificial crown material is reduced without impairing the necessary and sufficient functions as an artificial crown.
2. When recovering tooth profile such as decayed teeth, the part to be recovered is the work of creating the surface of the non-existing part, so it is often done manually by a dental technician or dentist based on his / her sensitivity However, it is to assist and facilitate the morphological formation of the surface.

From the above viewpoints, an extremely thin tooth profile forming film that can form a tooth profile by pressing the shape of the inner surface of the film on the surface while maintaining the internal shape while being deformed by receiving pressure from the opposing teeth, etc. Research has been conducted with development as an issue.

The present invention is a lid-shaped thin film of a size covering one tooth upper surface, wherein a patterned delicate uneven tooth shape is formed continuously on the inner upper surface portion and the edge inner surface portion. It is a formed film.
A lid-shaped thin film with an opening on the back side and an edge along the periphery of the top surface. Continuity of the uneven tooth profile patterned based on the shape of the actual tooth on the inner top surface and the inner surface of the edge. And formed.

The uneven tooth shape is a three-dimensional shape of a tooth shape in which a treatment target tooth is formed as a basic pattern or a fine pattern on the tooth surface, and is formed continuously on the inner upper surface portion and the edge inner surface.
The thin film has a very thin lid shape, and a concavo-convex tooth profile pattern formed on the inner surface of the thin film is formed on the inner surface of the lid shape. Work can be saved.
The film is thin and made of a silicon or polyethylene film, and is an exfoliated material from an artificial dental crown material such as a resin or porcelain or a dental crown forming material.

This thin film is used by placing it on a wax mold before curing (a prefabricated substantially disk-shaped crown mold with the upper surface molded to a certain extent) or a resin before curing. By pressing, the surface of the wax mold or the like can be transferred and marked with fine irregularities on the inner surface (such as fine grooves and dents) on the upper surface and edges of the wax mold, and at the same time the thickness of the upper teeth and film The shape that matches the shape of the upper teeth is marked.
The uneven shape of the upper teeth and the fine inner surface shape of the inner surface of the thin film are simultaneously marked together.
Since the fine shape can be adjusted and marked with the upper teeth, correction is reduced.
Work economy is improved and expensive crown material can be saved.

The tooth profile forming film of the present invention is filled, for example, with a resin material or the like on a portion to be recovered of a tooth to be treated, covered with a tooth profile forming film, and chewed by an opposing tooth or its mold, while applying pressure from above. In addition, the fitting shape with the entire opposing teeth is marked on the surface of the resin before curing, while maintaining the distance corresponding to the thickness of the tooth-forming film, and at the same time, the fine form inside the film is marked.
The tooth profile forming film is formed to be extremely thin, such as 0.1 mm to 0.5 mm, while having a tooth pattern having a shape-retaining property so that the uneven shape inside is not crushed.
Shape transcription is possible even with a thickness of 0.1 mm to 0.5 mm.

Basically, there is a shallow outer periphery that follows the top surface, and there is a curved connecting portion that continues at least to the side periphery.
The concavo-convex pattern inside the cover forms a fine concavo-convex shape on the top surface of the tooth, is formed so as to be continuous with the inner peripheral surface of the outer peripheral edge, and then gradually descends.
The tooth profile forming film can be produced by an electrostatic spray deposition method in which a resin material is sprayed on a basic tooth model, a coating impression peeling method, a press molding method using a mold, or the like.

The tooth profile forming film is used in the process of creating an artificial crown, for example, after the tooth profile forming film is placed on the upper portion of the artificial crown mold before solidification and pressed to form a tooth profile on the upper surface of the occlusal portion. The mold is naturally solidified, for example, a cured coating is applied or sprayed on the artificial dental crown mold, and the cured coating is cured and retained.

By using the tooth profile forming film, the upper surface of the occlusal portion and the side peripheral surface can be created without relying on the selection, so the tooth profile creation work of the artificial crown can be made more efficiently and economically, and the difference in skill level can be reduced. Can be eliminated.

The present invention also proposes a method for forming an artificial dental crown using the tooth profile forming film.
If the formation method of the present invention is described using inlay treatment as an example,
A: A hole is formed in the occlusal part by shaving the inlay.
B: Fill the hole with resin and fill the hole directly.
C: Cover the tooth profile forming film while the resin is soft. The resin is filled in the lid-shaped tooth profile forming film, and the concave and convex tooth profile inside is marked on the resin.
D: Then, the upper teeth are engaged or pressed from above. Since the matching at this time is crowned, the entire circumference of the treatment target tooth can be seen, so that matching not found in the past can be obtained.
E: After confirming the marking, light is irradiated to cure the resin, and when the resin hardens, the film is discarded.
F: An uneven surface shape and a side peripheral surface are transferred and recorded from the tooth profile forming film on the surface of the resin.
This forming method can be applied not only to a resin but also to a metal, an alloy, a cured resin, and the like that are cured in the mouth.

Further, taking the case of using wax for the inlay as an example, A: the inlay (cavities) is shaved and the wax is filled.
B: Cover the tooth profile forming film while the wax is soft. The opposing teeth are engaged from above. The pressing force of the opposing teeth is transmitted to the wax through the tooth profile forming film, and the fine surface shape formed on the inner surface of the tooth profile forming film is marked.
C: A wax pattern that is a shape that matches the teeth facing the wax surface and that has an uneven surface shape is transferred and stamped from the film to form a surface that follows the edge.
D: Cast the wax pattern and replace with resin / metal.
E: Resin / metal with the wax pattern replaced is loaded and bonded to the teeth.
F: Finally, fine adjustment and correction of the surface of the resin on which the uneven surface shape is transferred and printed. Tooth shape recovery is complete.

It may be necessary to process the tooth pattern pattern according to the type of individual teeth, but processing may be necessary depending on the shape of each individual tooth. And can be sufficiently absorbed in convenience by typification.

In summary, the method for forming an artificial crown using the tooth profile forming film of the present invention is a method for forming an upper surface portion of an artificial crown at an arbitrary point in the artificial crown preparation process or dental treatment process. It is a method for forming an artificial dental crown, wherein the tooth profile forming film is covered before the crown material is cured, and the upper surface portion and the curved shape and the flow surface such as the inclination of the side periphery are transferred.

By the way, as for the thin material, there was only one very thin sheet for meshing and confirmation of the gap when the crown was attached, but there was no idea of a film having the tooth profile formed on the inner surface.
Based on the invention of a new treatment material for forming a tooth profile on a thin film, the above-described method for forming an artificial crown can be provided.

The tooth profile forming film according to the present invention is a film mainly composed of thin silicon or polyethylene for marking an uneven tooth profile on a crown material such as an artificial crown wax mold before curing or a treatment resin before curing. The thin wall thickness directly transmits the deformation caused by the pressure to the inner surface to make the upper surface of the occlusal portion better meshed, and the entire upper surface of the occlusal portion has a thin gap of 0, 1 mm to 0.5 mm for correction. The following technical effects are remarkable.

The surface of the restoration part of the tooth has an advantage that the conventional troublesome work of embossing or cutting out manually is not required.
This is useful for assistants who are not highly specialized in the processing of artificial crowns compared to dental technicians, and it reduces the number of prosthetic crown processing steps. Contribute to the provision of products.
In addition, since the entire human work process is reduced in the first place, the cost for manufacturing the artificial crown can be reduced.

Even when the resin is used to fill the hole that has been cut directly and the tooth profile is restored, the occlusal surface can be created using the tooth profile forming film.
An artificial crown can be formed if there is a crown material to be used as a hole in the hole formed by cutting and an internal material on the upper part. You can save money.
The present invention can be applied without impairing the curing time, strength requirements, and shape retention requirements.

When marking the shape of the upper surface portion of the occlusal portion, while accurately transmitting the pressure from the object to be engaged, the inner surface is a tooth profile forming film that is pre-molded into a tooth profile that does not require correction, so of course the upper surface portion, The curvature that continues from the side peripheral surface or the upper surface portion to the side peripheral surface can be formed very accurately with a gap corresponding to the thickness (about 0, 1 mm).
Since the upper surface portion and the side peripheral surface of the occlusal portion can be formed accurately, the surface can be originally made smooth and can be created with a high degree of completion. There will be less corrections and there will be no waste of attaching or shaving useless crown material.
By eliminating waste, it is possible to reduce the amount of very valuable and expensive artificial crown material used.

BEST MODE FOR CARRYING OUT THE INVENTION The best mode for forming a tooth profile forming film (1) according to the present invention and a method for forming an artificial crown using the film will be described.
The present invention has been achieved through many trials and experimental manufactures in the processing of the surface of the restoration part of the tooth.

The tooth profile forming film (1) of the present invention is a thin film of a lid shape that covers the upper surface of one tooth, and a patterned delicate uneven tooth profile (2) is formed on the inner upper surface portion and the edge inner surface portion. It is formed continuously.
The lid shape is a shallow “浅” shape and has a shape having an edge (1b) around at least the upper surface (1a).
A thin film is formed in which the back surface is opened at the upper surface portion (1a) and the shallow edge portion (1b) formed along the periphery thereof.
And the delicate uneven | corrugated tooth profile (2) patterned based on the shape of a real tooth is continuously formed in an internal upper surface part and an edge inner surface.

The uneven tooth profile (2), which is patterned based on the shape of the actual tooth, is categorized according to size, shallowness, depth, children, adults, gender, age, etc. Has been created.
The tooth profile forming film (1) is disposable, and the material is a thin film made of silicon or polyethylene.
In the tooth profile forming film (1), the upper surface portion (1a) and the edge portion (1b) formed to hang around the upper surface portion (1a) can be made of the same material and the same wall thickness, or have different wall thickness or different. It is also proposed to form with materials.
When it is made with the same thickness of 1 mm, it is made of a material having a shape-retaining property, and irregularities similar to the inner surface appear on the outer surface because of the uniform thickness. However, the irregularities on the outer surface do not form a fine pattern shape.
The shape of the inner surface of the lid-shaped tooth profile forming film (1) is indispensable, resulting in a delicate uneven tooth profile (2).

The different material means a material having different restoring elasticity and hardness flexibility.
A material with high flexibility is used such that the edge (1b) is thin so that when the mold material or crown material is filled into the tooth profile forming film (1), excess mold material is discharged.
In addition, when the whole requires light transmission, there are materials such as a transparent material that have different elasticity and expansion at the top (1a) and edge (1b) while maintaining the light transmission. Including meaning.

Tooth profile forming film (1) The tooth profile on the inner surface is standardized, patterned, or categorized and provided in a number of variations. An artificial dental crown is created by appropriately using the work process.

The thickness of the tooth profile forming film (1) is about 0.1 mm.
When the thickness is uniform, the uneven tooth profile (2) is formed on the inner surface, so that the uneven tooth profile is also expressed on the surface.
In the present invention, it is not essential that the thickness is equal, and the outer surface as shown in FIGS. 1 and 2 is flattened for ease of handling.
The size is a size covering the upper surface of one tooth, and the standard is a substantially circular shape or a substantially elliptical shape having a diameter of about 8 mm.
Many different sizes and shapes can be created if necessary according to the type and age of the teeth.

In this way, the tooth profile forming film (1) is very thin, and while holding the tooth profile irregularities for marking firmly on the inner surface, the deformation by pressing from above and the individual irregularities are transmitted and recorded. The upper surface portion of the occlusal portion of the crown material can be formed while accurately reflecting the shape on the inner surface and having a gap of about 0.1 mm in thickness.
This was made possible by the fact that silicon and polyethylene with moderate flexibility and elasticity / plasticity were adopted as the material of the tooth profile forming film and made thin.

In addition, as described above, even if the resin is used as a crown material and the light is applied for curing the resin after covering the tooth profile forming film (1), the film is thin and has light transmittance, so that the resin is cured. Does not disturb.
From the viewpoint of permeability, the tooth profile forming film (1) is preferably made of transparent silicon or polyethylene.

FIG. 1, FIG. 2, FIG. 3 and FIG. 4 are explanatory views of a tooth profile forming film (1) for tooth shape recovery according to the present invention, and are examples of the tooth profile forming film (1).
FIG. 1 is a sectional view showing Example 1 of a tooth profile forming film (1) made of silicon. The upper surface portion (1a) and the following edge portion (1b) are formed in a substantially lid shape, and a fine tooth surface pattern (tooth shape) is formed on the inner upper surface portion. There are concave and convex tooth profiles (2) such as concave and convex portions and shallow grooves, and the inner surface of the edge portion is formed by forming a shape (3) such as shallow grooves.
In the figure, X corresponds to the diameter (size) of one tooth that covers the upper surface of one tooth. The film thickness is 0.1 mm and the edge height is 0.3 mm.

FIG. 2 is a cross-sectional view showing Example 2 in which the upper surface portion (1a) and the edge portion (1b) are made of different materials.
In Example 2, the upper surface portion (1a) was made of silicon synthetic rubber having thickness and hardness, and the edge portion (1b) was made of silicon synthetic rubber having high stretchability.
FIG. 3 is a perspective view of the tooth profile forming film (1) of Example 1. FIG.
FIG. 4 is a product tree in which Example 1 or Example 2 is connected to a variety of sizes and shapes of the tooth profile forming film (1).
FIG. 4 is an example of a state when the tooth profile forming film (1) is actually commercialized, and is an example of a product form used for one adult male, for example.

In the form as shown in FIG. 4, the molded product of the tooth profile forming film (1) is connected with a large number of branch bars, selected according to the tooth to be treated, cut, peeled off and used.
The above-mentioned form is adopted because patients usually do not have one dental caries treatment and usually require treatment in several places. The tooth profile forming film (1) corresponding to the teeth is connected to a tree.
The tooth forms (2) and (3) on the inner surface are standardized or patterned and classified according to the corresponding tooth.

When creating an artificial crown, select one that is suitable for the tooth to be treated from among many variations, and use the tooth profile forming film (1) to create the upper surface of the occlusal portion of the artificial crown. The part can be formed.

FIG. 5 shows a process for producing an artificial crown using the tooth profile forming film (1) according to the present invention, and shows the process up to the restoration of the tooth profile as an example of the inlay treatment of the lower back tooth as a forming method example 1. FIG.

Forming method Example 1 is a method of covering the tooth profile forming film (1) before hardening the resin or the like at the time of forming the upper surface portion of the artificial crown at an arbitrary point in the artificial crown preparation process or dental treatment process. Transfers the upper and lower teeth and the uneven tooth profile on the side edge, and fills the treatment site or model model with resin or other hardened resin or metal in the creation of an artificial crown, or corresponds to the treatment site Then, after molding with a photocurable resin or the like, it is a crown material at the stage of the mold before molding the artificial crown, and before the crown material is cured, it is covered with the above-described tooth profile forming film The upper teeth are meshed or pressed from above, and the upper surface portion and the uneven teeth on the side periphery following the upper teeth are transferred and printed on the corresponding places, and then the resin is radiated to harden the resin and the like to form the artificial teeth using the tooth profile forming film. Features creating a crown To.

The basic formation method of tooth profile recovery in inlay treatment is shown below.
1. The inlay (hole-shaped decayed tooth in the center of the tooth) (10) is shaved and removed to form a necessary limit hole (11) in the occlusal portion.
2. Fill the hole (11) with resin (12), which is an artificial crown filler, and fill the hole directly.
3. While the resin (12) is soft, the tooth profile forming film (1) having the structure of Example 1 or Example 2 of the present invention is placed thereon.
The size of the tooth profile forming film (1) is of a size that covers a slightly larger diameter than the treated tooth.
4. Then, the upper teeth are engaged or pressed from above. At this time, since the tooth profile forming film (1) is extremely thin, the entire unevenness of the meshing shape of the upper teeth is marked on the resin through the tooth profile forming film (1), and the inside of the upper surface portion of the tooth profile forming film (1). The patterned fine uneven tooth profile (2) is marked.
When the resin extends to the edge (1b), the fine shape (3) of the curved portion continuous from the upper surface of the occlusal portion to the side periphery is marked on the inner surface of the edge.
Then, the surface (13) of the resin (12) is transferred so that the uneven surface shape has a fine gap (the thickness of the film) inside the upper surface of the tooth profile forming film (1) and the actual upper tooth shape. It is stamped and formed.
5. The resin (12), which is a photo-curing substance, is irradiated with light in the mouth to cure the resin (12). When the resin (12) has hardened, the tooth profile forming film (1) is peeled off and discarded.
6. The surface (13) of the resin (12) has a concave and convex surface shape transferred from the tooth profile forming film (1) and has a fine gap from the upper teeth, and is in a cured state (14) in the inlay. Become.
7. Finally, confirm the patient's feeling while visually recognizing it, make a slight correction, complete the method of creating an artificial crown, and complete the treatment.
As described above, in the method for forming an artificial crown using the tooth profile forming film (1), the restoration of the tooth to be treated can be facilitated, and the processing and correction can be simplified.

In preparation of an artificial dental crown, the above-mentioned description is made after filling a treatment site or a treatment model location with a resin or other curable resin or metal, or molding with a photocurable resin or the like corresponding to the treatment site, and then curing. The tooth profile forming film is covered and the upper teeth are meshed or pressed from above to transfer and mark the upper surface portion and the uneven teeth on the side periphery following the location, and then the light is irradiated to cure the resin and the tooth profile. A method for forming an artificial dental crown, comprising producing an artificial dental crown using a forming film.

FIG. 6 shows a process for producing an artificial crown using the tooth profile forming film (1) according to the present invention. As an example of forming method Example 2, the tooth profile is recovered by using a wax (20) for inlay treatment. It is explanatory process drawing which showed up to.

Forming method Example 2 is a method of covering the above-described tooth profile forming film before curing of the molded or shaped wax or the like at the time of forming the upper surface portion of the artificial crown at an arbitrary point in the artificial crown preparation process or dental treatment process. In the preparation of an artificial crown, the above-described tooth profile forming film is formed before filling the treated site or model model site with wax and curing. Cover the upper teeth and press from above to form a wax pattern in which the upper surface portion and the uneven teeth on the side periphery following it are transferred and stamped at the location, and cast the wax pattern to resin or other cured resin or metal In this method, an artificial dental crown is formed using a tooth profile forming film.

The basic process for creating an artificial crown using wax in inlay treatment and filling it to restore the tooth profile is shown below.
1. Sharpen the inlay (cavities) (10) to make holes and fill with wax.
2. Cover the tooth profile forming film (1) while the wax is soft.
When the edge of the tooth profile forming film (1) is placed so as to be stretchable or thin and wound so as to be pressed with a finger, it tightly covers the inlay (10) and its surroundings.
From the tooth profile forming film (1), fine tooth profile irregularities are marked on the upper surface portion of the wax and the side peripheral edge portion extending therefrom.
At this time, when the wax is in a dissolved state, it is difficult to transmit the pressure from above, and the fine shape disappears. Mark irregularities.
3. On the wax surface, an uneven surface shape is transferred from the tooth profile forming film (1), and a cured wax pattern is formed.
4. Cast the wax pattern and replace with resin / metal.
5. Load and bond resin / metal with wax pattern replaced to teeth.
6. Restoration of the tooth profile is completed with a slight adjustment after loading and bonding an artificial dental crown having an uneven surface shape transferred and marked on the surface.

FIG. 7 shows a process for producing an artificial crown using the tooth profile forming film (1) according to the present invention. As the forming method example 3, the inlay (10) was widely formed in a shallow portion of the tooth surface. FIG. 5 is an explanatory process chart showing the process up to the restoration of the tooth profile using the tooth profile forming film (1) in an example in which the top surface of the tooth is removed flat as in the case.
The process of creating a dental crown using the tooth profile forming film (1) will be described in the order of processes based on the drawings. This is a basic forming method for tooth profile recovery created by covering a mold material.
In this recovery, a tooth wax pattern to be treated is prepared in advance or a concave shape is adopted.

1. The inlay (cavities) (10) portion is deleted and the surface is cut so that it is flat.
2. Put a convex mold on the tooth surface that was shaved in steps 1 and 2 and make a mold using the convex mold and the prepared wax pattern, or cover the convex mold with the previously collected concave mold. To create a mold.
At this time, when the mold is cured to some extent, (1) is placed on the mold material from above with the tooth profile forming film having the above-described configuration of the present invention. The size of the tooth profile forming film (1) is of a size that covers a slightly larger diameter than the treated tooth.
3. Next, the upper teeth are engaged or pressed from above. Push the upper tooth mold from above to create a prosthetic crown mold.
At this time, since the tooth profile forming film (1) is extremely thin, the meshing shape of the upper teeth is marked on the wax through the tooth profile forming film (1) and patterned inside the upper surface of the tooth profile forming film (1). The uneven tooth profile (2) is also marked, and the shape (3) of the curved portion continuing from the upper surface of the occlusal portion to the side periphery is also marked.
An uneven surface shape is formed on the surface of the wax, and a wax pattern with a transfer mark is formed between the inside of the upper surface portion of the tooth profile forming film (1) and the actual upper tooth shape with a fine gap (the thickness of the film). .
4. Cast the wax pattern and replace with resin / metal.
5. An artificial crown (15) having an uneven surface shape transferred and marked on the surface is loaded and bonded to the teeth. At the end, the tooth profile recovery is completed with slight modifications while visually checking.
The artificial crown (15) has a shape that fits into the tooth base and is formed so that the upper surface (2a) is aligned with the upper teeth while having the fine uneven tooth profile (2), and the surface of the edge (2b) ) The inner surface shape of the tooth profile forming film (1) is marked on the side peripheral surface (2c).

This method for creating an artificial crown can provide a complete crown (22) that can be securely meshed with only a slight modification.
Dental caries treatment, which can be said to be the backbone of dentistry, has the highest cost for creating an artificial crown, and it can be said that the reduction of the loss due to this cutting is immediately connected to the cost reduction of dentistry.
The present invention provides a tooth profile forming film having a tooth profile excellent in workability as well as lowering operation cost by standardizing, patterning, and classifying the tooth profile of the film. As a result, it is possible to eliminate the waste of the very expensive artificial crown material.
In recent years, resin and the like are used as materials for artificial dental crowns, but they are still as expensive as metals such as gold and silver, and correction of the materials used is a major technical achievement.

FIG. 8 shows a forming method example 4 in which a mold (101) is taken from the caries surface, the caries are cut, a convex ridge (102) is taken, a convex (103) is made, and the mold (101) Then, a wax mold (20) is made with the convex base (103), the mold (101) is removed, the tooth profile forming film (1) is placed thereon, pressed with the upper tooth mold, and a fine uneven tooth profile (2) is marked, and it is replaced with an artificial crown (15) and attached to the affected area to create a completed crown (22).

FIG. 9 shows a forming method example 4 in which a mold (101) is taken from the caries surface, the caries are cut, a convex ridge (102) is taken, a convex (103) is made, and the mold (101) When the wax mold (20) is made with the convex base (103), the wax mold (20) in which the tooth profile forming film (1) is placed on the wax and the fine irregular tooth profile (2) is marked. It shows a process of making a finished crown (22) by making it, replacing it with an artificial crown (15), and mounting it on the affected area.

The tooth profile forming film (1) can be used at various stages of the artificial crown making process as in the forming method examples 1 to 4.

The tooth profile forming film of the present invention is used for the production of an artificial crown, in addition to the direct use in the mouth by a doctor and the use in the process of creating an artificial crown during the creation of a dental technician, It can also be used for inspection of engagement by wearing.

1 is a cross-sectional view showing Example 1 of a tooth profile forming film according to the present invention. FIG. These are sectional drawings which show Example 2 of the tooth profile formation film which concerns on this invention. These are the perspective views of Example 2 of the tooth profile formation film which concerns on this invention. These are the perspective views which show the tree form of the tooth profile formation film which concerns on this invention. These are explanatory drawings which show the formation method Example 1 of an artificial crown until it reaches the restoration of a tooth profile using a resin in an inlay treatment as an example in the process of creating an artificial crown using the tooth profile forming film according to the present invention. . These are explanatory drawings which show Example 2 of the method for forming an artificial crown until the restoration of the tooth profile, taking as an example the case where wax is used for inlay treatment in the process of creating an artificial crown using the tooth profile forming film according to the present invention. is there. Is a method for forming an artificial crown until the restoration of the tooth profile when the top surface of the tooth to be treated is cut flat in the step of creating an artificial crown using the tooth profile forming film according to the present invention. It is explanatory drawing shown. It is an example in the case of treating all the upper part of a tooth. In the process of creating an artificial crown using the tooth profile forming film according to the present invention, the method of forming the artificial crown until the tooth profile is restored when the top surface of the tooth to be treated is cut flat is shown. It is explanatory drawing. The tooth profile forming film is used in a process of later marking on a wax mold. Is a method of forming an artificial crown up to restoration of the tooth profile when the top surface of the tooth to be treated is cut flat in the step of creating an artificial crown using the tooth profile forming film according to the present invention. It is explanatory drawing shown. The tooth profile forming film is used in a molding process together with a wax mold. These are explanatory drawings which show preparation of the conventional artificial dental crown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tooth profile formation film 1a Upper surface part 1b Edge part 2 Concave and convex tooth profile (upper inner surface)
2a Upper surface 2b Edge surface 2c Side peripheral surface 3 Edge inner shape 10 Cavity inlay 11 Inlay cutting hole 12 Resin 13 Stamped tooth profile 13a Hardened resin 14 Wax mold 15 stamped with concave and convex teeth Profile stamped Cast resin 20 made of wax or upper surface untreated wax mold 21 Metal after replacement 22 Completed crown

Claims (4)

A thin film of a lid shape having a size covering one tooth upper surface, wherein a patterned delicate uneven tooth shape is continuously formed on an inner upper surface portion and an edge inner surface portion. A lid-shaped thin film having an opening on the back surface and a top edge portion and a shallow edge hanging along the periphery of the top surface portion, and an uneven tooth profile patterned based on the shape of the actual tooth on the inner surface. Concavo-convex tooth profile formed continuously on the inner surface of the edge and patterned on the basis of the shape of the actual tooth was created by classifying it into large, small, deep, children and adults, and made of silicon or polyethylene A tooth profile forming film characterized by the above. The tooth profile formation according to claim 1 or 2, wherein the thin film has an upper surface portion and an edge portion formed around the thin film formed of different thicknesses or different materials. the film. The tooth profile forming film according to claim 1, wherein the thin film is formed of a light transmissive material.