JP3303172B2 - Artificial tooth unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial tooth unit used for a denture, and more particularly to an artificial tooth unit suitable for manufacturing a complete denture.

[0002]

2. Description of the Related Art A complete denture includes an artificial tooth having an entire dentition, and a denture base that holds the artificial tooth and is fixed to a jaw. In addition, the denture base is divided into a narrow denture base fixed to the jaw part and an alveolar part connecting the artificial denture and the denture base. In this specification, the denture base in the narrow sense and the alveolar part are combined. The part will be called a denture base.

[0003] As artificial teeth used for dentures such as the above-mentioned complete dentures or local dentures, for example, "Dental Technician Textbook and Denture Technology" (Vol. 1) Dentures "by Nishiura Jun, Medical and Dental Publishing Co., Ltd. (1st edition published on April 5, 1976), porcelain, metal, resin (synthetic resin), composite material of metal and resin It is known that they are made separately one by one.

The production of a complete denture using such a conventional artificial tooth is performed, for example, by the method described in the above-mentioned publication. The method involves taking a patient's upper and lower jaw impressions, making upper and lower jaw plaster working models from the impressions, making a wax occlusal floor using the working model, articulating the model and occlusal floor. It consists of mounting, artificial tooth arrangement on the occlusal bed mounted on the articulator, gingival formation, burial, wax flow, resin polymerization and polishing.

[0005]

When a complete denture is manufactured by using the conventional artificial teeth which are separately manufactured one by one as described above, the artificial teeth are formed on the occlusal ridge of the occlusal floor in the artificial tooth arranging step. Need to be arranged one by one. There are various methods for arranging the artificial teeth. In any case, it is necessary to arrange the artificial teeth one by one so that the entire dentition has a desired occlusal relationship, which is extremely difficult and time-consuming. . Therefore,
The artificial teeth above and below the entire dentition are occluded and removed.
The artificial tooth unit fixed by the possible fixing means
Between the upper and lower plaster working models prepared and attached to the articulator
The artificial tooth unit is placed in the
Filling the space between the mold and the mold with the instant polymerization resin
Form the tooth bed and finish with polishing to complete the complete denture
It is conceivable to do so. If you do this,
Simultaneous removal of artificial teeth of all dentitions with a predetermined occlusal relationship
Can be arranged easily, and the work time is short.
No. However, in the case described above, the artificial teeth of the entire dentition
It is difficult to maintain a certain occlusal relationship
It is difficult. Also, when forming a denture base on the articulator,
Immediately filling the gap between the artificial tooth and the upper and lower models attached to the articulator
When the amount of polymerized resin is large, denture base formation work is troublesome,
It takes time .

An object of the present invention is to solve the above problems,
An object of the present invention is to provide an artificial tooth unit in which an artificial tooth arranging operation and a denture base forming operation are easy and do not require much time.

[0007]

Means for Solving the Problems] artificial tooth unit according to the present invention, the upper and lower artificial teeth are caused to bite, is fixed by a removable fixing means, on each side of the vertical, its
An artificial tooth unit that contains multiple rows of artificial teeth
Then, on each of the upper and lower sides, the artificial teeth
The denture base side parts are joined respectively, and the denture base side part
The feature is that multiple artificial teeth are connected by minute
Is what you do .

[0008] that of most large provisions <br/> view of an artificial tooth unit according to the present invention, all SANYO consisting entire dentition artificial tooth serving as dentures, and various combinations. For example, an upper or lower continuous row of artificial teeth and the same number of continuous artificial teeth on the opposite side are completely occluded, or a part of the upper or lower continuous multiple rows of artificial teeth. Some or all of the contiguous rows of artificial teeth on the other side are occluded, and some of the upper or lower contiguous rows of artificial teeth are occluded by opposing intermittent rows of artificial teeth What was made,
It is possible that a part of the upper or lower intermittent rows of artificial teeth and a part of the opposite intermittent rows of artificial teeth are occluded so that the entire row of teeth is continuous. .

When there are a plurality of continuous rows of artificial teeth on each of the upper and lower sides, adjacent artificial teeth may be joined.

[0010]

The fixing means may include a double-sided adhesive tape sandwiched between the bite portions of the upper and lower artificial teeth. Further, the fixing means may include a plurality of holding members for holding a plurality of portions of the upper and lower denture base teeth side portions from above and below.

[0012]

When a complete denture is manufactured using the artificial tooth unit according to the present invention, the artificial tooth unit is arranged in an occlusal ridge of an occlusal floor mounted on an articulator together with a working model in the same manner as in the prior art. When the artificial tooth unit includes only a part of the artificial teeth of the entire dentition, a plurality of sets of the artificial tooth units are arranged and the entire dentition is arranged. Then, when the arrangement of the artificial tooth units is completed, the fixing means is removed to release the fixing of the upper and lower artificial teeth. Thereafter, in the same manner as in the related art, each step of gingival formation, burial, flowing wax, resin polymerization, and polishing finish is performed to complete a complete denture. In this case, since the artificial teeth of the double sequence occlusal relationship that has been decided in advance simultaneously Hairetsu are easy Hairetsu work, requires only a shorter working time. When the artificial tooth unit includes the artificial teeth of the entire dentition, one set of the artificial tooth units is arranged at a time. In this case, since the artificial teeth of all the dentitions in which the occlusal relationship is predetermined can be arranged at a time, the operation is further facilitated and the operation time is further reduced. Although the shape of the jaw varies from patient to patient, research by the present inventor has shown that it is applicable to most patients even when the artificial tooth arrangement is constant. Therefore, even if an artificial tooth unit in which the arrangement of artificial teeth is determined in advance is used, if the denture base is manufactured according to the patient, an optimal complete denture can be manufactured for each patient.

In the case where the artificial tooth unit includes an artificial tooth of a full dentition, only the upper and lower working models made of gypsum are manufactured without manufacturing the occlusal bed made of wax, and these are mounted on the articulator, Position and fix the artificial tooth unit including the artificial teeth of the entire dentition at a predetermined position between the models of the artificial tooth unit ,
The denture base is formed by immediately filling the space between the base tooth side portion and the upper and lower models with the use of a polymerization resin, and finally polishing is performed to complete the complete denture. This eliminates the conventional steps of burying, flowing wax, and resin polymerization, and allows a complete denture to be manufactured in a short time after obtaining an impression from a patient. In this case, if a mark indicating the reference position is attached to the artificial tooth unit, the alignment with the upper and lower models becomes easy. Before attaching the model to the articulator, make a part of the jaw side of the denture base using this instantaneous polymerization resin, attach this to the articulator, and in the same way as above the jaw side of the denture base Part and denture base side of artificial tooth unit
A complete denture can also be manufactured by filling the minute with instant polymerization resin. Multiple rows of artificial teeth on the upper and lower sides
The denture side parts are joined together, and the denture base part
Since multiple artificial teeth are connected, multiple rows of artificial teeth
To maintain a certain occlusal relationship
It is easy. In addition, the upper and lower models attached to the articulator or a part of the jaw side of the denture base made therewith and the artificial tooth unit
The amount of the immediate polymerization resin that fills the space between the denture base and the denture side can be reduced, and the denture base forming operation using the immediate polymerization resin on the articulator can be simplified.

[0014] A local denture can be manufactured by using one or more sets of artificial tooth units including only a part of the artificial teeth of the entire dentition.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a comparative example and an embodiment of the present invention will be described with reference to the drawings.

[0016] Figure 1 shows a comparative example of a human Koha unit.

The artificial tooth unit (1) includes artificial teeth (2) and (3) of the entire dentition serving as a complete denture. It is fixed by a single U-shaped double-sided adhesive tape (4) sandwiched therebetween.
In the upper and lower rows, if the adjacent artificial teeth (2) and (3) are joined by appropriate means, the overall occlusal relationship does not change. However, adjacent artificial teeth (2) (3)
There is no need to join comrades.

Next, an example of a method for manufacturing a complete denture using the artificial tooth unit (1) will be described with reference to FIG.

First, upper and lower jaw impressions are obtained from a patient, and upper and lower plaster working models, ie, an upper jaw model (5) and a lower jaw model (6) are manufactured from the upper and lower impressions. Wax bite or upper bite (7)
And a mandibular occlusal floor (8) are prepared, and these models (5) (6) and occlusal floors (7) (8) are mounted on the articulator (9). Articulator (9)
The steps up to this point are the same as those described in, for example, the aforementioned publications. Next, the occlusal ridges (7a) (8a) of the upper and lower occlusal floors (7) (8) attached to the articulator (9)
All the artificial teeth (2) and (3) of the artificial tooth unit (1) are arranged at once. The arrangement method itself at this time is the same as the conventional method described in the aforementioned publications. At this time, if the adjacent artificial teeth (2) and (3) on the upper and lower sides of the artificial tooth unit (1) are joined in advance, there is no need to adjust the occlusal relationship of the entire dentition, and the arrangement work is extremely difficult. It is easy and can greatly reduce the work time. Even if the adjacent artificial teeth (2) and (3) on the upper and lower sides are not joined in advance, the occlusal relationship between the upper and lower artificial teeth (2) and (3) in each dentition is fixed, so the overall occlusion It is only necessary to adjust the relationship, and the arrangement work is also easy. When the alignment of the artificial tooth unit (1) is completed, remove the double-sided adhesive tape (4) from the artificial teeth (2) and (3) of the artificial tooth unit (1), and put the upper and lower artificial teeth (2) and (3). Can be freely separated, and thereafter, the gingival formation, burial, wax flow, resin polymerization, and polishing finish are performed in the conventional manner to complete the complete denture.

Next, another example of a method of manufacturing a complete denture using the artificial tooth unit (1) will be described with reference to FIG.

First, an impression is obtained, and an upper jaw model (5) and a lower jaw model (6) are manufactured as in the prior art. Next, a part of the denture base (resin floor) on the jaw side (denture base jaw side part) (1) using immediate polymerization resin for the part corresponding to the jaw of each model (5) (6)
0) (11) is formed. Then, the upper and lower models (5) and (6) on which the denture base jaw portions (10) and (11) are formed are mounted on the articulator (9). This state is shown in FIG. Next, the artificial tooth unit (1) is placed at a predetermined position between the upper and lower denture base jaw side parts (10) (11).
And fix it at that position by appropriate means (not shown). If a mark indicating the reference position is attached to the artificial tooth unit (1), the alignment with the upper and lower models (5) and (6) becomes easy. Next, between the upper artificial tooth (2) of the artificial tooth unit (1) and the maxillary denture base jaw part (10), and the lower artificial tooth (3) and the lower denture base jaw part (11) ) Is filled with an instant polymerization resin, respectively, so that artificial teeth (2) (3)
And the denture base jaw-side portions (10) (11) are connected to form the entire upper and lower denture bases. And artificial teeth (2) (3)
The model is a semi-finished upper and lower complete denture with an integrated denture base
(5) Remove from (6) and finish polishing as in the past to complete the complete denture.

In this case, the conventional steps of burying, flowing wax and resin polymerization become unnecessary, and a complete denture can be manufactured in a short time after obtaining an impression from a patient. Also, denture base jaw side parts (10) (11) are formed in advance on the upper and lower models (5) (6),
Since these are attached to the articulator (9), the denture base jaw side (1
The amount of immediate polymerization resin that fills the gap between (0) (11) and the artificial teeth (2) and (3) is small, and the denture base forming operation using the instant polymerization resin on the articulator (9) is simplified. Become. However, the denture base jaw side parts (10) and (11) were not formed in advance on the upper and lower models (5) and (6), and the models (5) and (6) attached to the articulator (9) It is also possible to immediately fill the space between the artificial tooth unit (1) and the artificial tooth unit (1) which is positioned at the position with the polymerized resin.

By using this method, it is possible to repair an old denture (complete denture) that has become maloccluded as follows. That is, first, using the old denture incompatible with occlusion, re-obtain the occlusion correctly in the patient's mouth, and attach it to the articulator. And the artificial teeth are ground together, and the artificial tooth unit (1) of FIG. 1 is positioned and fixed between the upper and lower denture base jaw parts on the articulator, and the artificial tooth unit (1) is Upper and lower artificial teeth
(2) The space between the denture base jaw and the upper and lower dentures of the old denture is filled with immediate polymerization resin, and these are connected. In the artificial tooth unit (1) of FIG. 1, each of the artificial teeth (2) and (3) in the upper and lower rows includes one entire tooth (total height), but only the artificial teeth having a short height including only a part of the occlusal part side. Repair of an old denture can be performed in the same manner as described above using an artificial tooth unit made of. In this case, correct the occlusion and reshape the occlusal part of the artificial tooth, leaving the entire denture base of the old denture attached to the articulator and the denture base part of the artificial tooth. Position and fix the artificial tooth unit between the denture base part of the artificial tooth, and in the same manner as above, the occlusal part of the artificial tooth above and below the artificial tooth unit and the denture base part of the artificial tooth above and below the old denture The spaces between the two are filled with an instant polymerization resin of the same color as the artificial teeth, and these are connected.

The means for fixing the upper and lower artificial teeth is not limited to the double-sided pressure-sensitive adhesive tape (4), but can be changed as appropriate. For example, use an adhesive plate with concave upper and lower occlusal surfaces back to back, or connect appropriate fixing members that connect and fix these to the upper and lower artificial teeth by bonding, etc., and remove them by cutting etc. when the denture is completed It may be. When adjacent artificial teeth are joined, it is sufficient to sandwich double-sided adhesive tape or adhesive plate etc. only in the occlusal part of the artificial teeth in the upper and lower rows of some rows, and in the upper and lower rows of some rows. Only the artificial teeth need be connected and fixed by the fixing member.

[0025] Figure 4, the artificial tooth unit according to the invention
One example is shown.

The artificial tooth unit (12) also includes artificial teeth (2) and (3) of the entire dentition as a complete denture, and these are occluded for each dentition. On the upper artificial tooth (2), a resin denture base side part (13), which is a part of the artificial denture (2) side of the maxillary denture base, is joined, so that the upper whole row of artificial teeth
(2) is concatenated. In addition, a resin denture base portion (14), which is a part of the artificial denture (3) side of the lower denture base, is joined under the lower artificial tooth (3), whereby the lower row of all rows is joined. Artificial teeth (3) are connected. At two locations near both ends of the dentition, the upper and lower denture base teeth (13) and (14) are sandwiched by U-shaped clamping members (15) constituting fixing means. (2) and (3) are fixed in a state of maintaining a constant occlusal relationship as a whole. Also in this case, adjacent artificial teeth (2) and (3) may or may not be joined on each of the upper and lower sides.

Next, an example of a method of manufacturing a complete denture using the above-described artificial tooth unit (12) will be described with reference to FIGS.

First, as in the case of FIG.
The upper denture model (5) and the lower jaw model (6) were manufactured, and the denture base jaw parts (16) and (17) were formed using instant polymerization resin to form denture base jaw parts (16) and (17). Attach the upper and lower models (5) and (6) to the articulator (9). This state is shown in FIG. Next, the artificial tooth unit (12) is positioned at a predetermined position between the upper and lower denture base jaw side portions (16, 17), and fixed at that position by an appropriate means (not shown). In this case, the denture base side portions (13) and (14) are formed in the artificial tooth unit (12), and accordingly, the denture base jaw side portions (16) and (17) are compared with the case of FIG. It is getting thinner. Next, the artificial tooth unit (1
2) Upper denture base side (13) and upper denture base side
(16) and between the lower denture base side part (14) and the lower denture base jaw side part (17) by filling with immediate polymerization resin, respectively, the denture base side part (13) The denture base portion (16) and (17) are connected to form the upper denture base (18) and the lower denture base (19) as shown in FIG. At this time, the upper and lower denture base parts (13) and (14) without the pinching member (15) are first placed on the upper and lower denture base jaw side by polymerizing resin.
(16) and (17), and then the holding member (15) is removed from the artificial tooth unit (12), and the portion of the denture base side (13) (14) where the holding member (15) was located and the denture The floor-jaw-side portions (16) and (17) are connected by an instant polymerization resin. And artificial teeth (2)
Remove the upper and lower complete denture semi-finished products (20) and (21) in which (3) and the denture bases (18) and (19) are integrated from the models (5) and (6).
Polishing is completed to complete the complete denture.

In this case, the conventional steps of burying, flowing wax and resin polymerization are not required, and a complete denture can be manufactured in a short time after obtaining an impression from a patient. In addition, the upper and lower denture base side parts (13) and (14) are formed in advance on the artificial tooth unit (12), and the denture base jaw side parts are added to the models (5) and (6) before being attached to the articulator (9). Since (16) and (17) are formed, the amount of the immediate polymerization resin that fills the space between the denture base part (13) (14) and the denture base jaw part (16) (17) can be reduced. The denture base forming operation using the instantly polymerized resin on the articulator (9) is simplified. However, the denture base jaw side part (10) (11)
Need not be formed as in the case of FIG.

In the above embodiment, the artificial tooth unit including the artificial teeth of the entire dentition has been described, but the artificial tooth unit may include only a part of the entire dentition. For example ,
A plurality of upper or lower continuous rows of artificial teeth and the same number of continuous artificial teeth on the opposite side are completely occluded, for example, those including multiple rows of anterior teeth, multiple posterior teeth It may be one containing a row of artificial teeth. further,
A part of the artificial teeth of the upper or lower continuous row is partially or entirely occluded with a part of the artificial teeth of the opposite continuous row, and the artificial tooth of the upper or lower continuous row is Part of which has an intermittent intermittent row of artificial teeth occluded, part of an upper or lower intermittent intermittent row of artificial teeth and part of an opposing intermittent intermittent row of artificial teeth May be engaged so that the dentition is continuous as a whole. In short, any combination is possible as long as the upper and lower artificial teeth are occluded at necessary places and the dentition is continuous as a whole artificial tooth unit.

When a complete denture is manufactured by using an artificial tooth unit including only a part of the artificial teeth of the entire dentition, a plurality of sets of artificial tooth units are used to form an occlusal floor mounted on an articulator. What is necessary is just to arrange the artificial teeth of the entire dentition in the occlusal ridge. Of course, it is also possible to manufacture a local denture using one or more sets of artificial tooth units including only part of the artificial teeth in the entire dentition.

[0032]

Effects of the Invention] According to the artificial tooth unit of the present invention, as described above, the upper and lower artificial teeth are caused to bite, since it is fixed by removable fixing means, occlusal relationship that has been decided in advance double Several rows of artificial teeth can be arranged at the same time, so that the arrangement operation is easy and the operation time is short.

When the artificial tooth unit includes the artificial teeth of the entire dentition, the artificial teeth of the entire dentition having a predetermined occlusal relationship can be arranged at a time by arranging one set of the artificial tooth units at a time. Therefore, the work is further facilitated, the work time is further shortened, and the complete denture can be easily manufactured in a short time.

In the case where the artificial tooth unit includes an artificial tooth having a full dentition, the distance between the upper and lower plaster working models mounted on the articulator and the artificial tooth unit positioned at a predetermined position therebetween is determined. By filling with instant polymerization resin,
The denture base can be formed directly, and the complete denture can be manufactured in a short time after taking an impression from a patient without performing the steps of conventional embedding, flowing wax and resin polymerization. Up
On each side below, multiple rows of artificial teeth have denture base side
Each jointed, multiple artificial by denture base side part
Because the teeth are connected, multiple rows of artificial teeth
It is easy to maintain the relationship. Ma
In addition, the amount of the immediate polymerization resin that fills the space between the denture base side portion of the artificial tooth unit and the upper and lower models can be reduced, and the denture base forming operation using the immediate polymerization resin on the articulator as described above can be performed. It's easy.

[Brief description of the drawings]

FIG . 1 is a perspective view of an artificial tooth unit showing a comparative example.

FIG . 2 is a perspective view showing one step of a method of manufacturing a complete denture using the artificial tooth unit of FIG.

FIG . 3 is a perspective view showing one step of another manufacturing method of the complete denture using the artificial tooth unit of FIG. 1;

Figure 4 is a perspective view of the artificial tooth unit indicating the actual施例of the present invention.

FIG . 5 is a perspective view showing one step of a method of manufacturing a complete denture using the artificial tooth unit of FIG. 4;

FIG . 6 is a perspective view showing one step after the step in FIG. 5;

[Description of Signs] (2) Artificial teeth (3) Artificial teeth (4) Double-sided adhesive tape (12) Artificial tooth unit (13) Denture base side (14) Denture base side (15) Clamping member

Claims (5)

(57) [Claims] An upper and lower artificial tooth is occluded and fixed by removable fixing means .
Artificial tooth units each containing multiple rows of artificial teeth
In each of the upper and lower sides, a part of the denture base is
The denture base side parts that are
Characterized by multiple artificial teeth connected by parts
And an artificial tooth unit. 2. The artificial tooth unit according to claim 1 , wherein the artificial teeth of the entire dentition serving as a complete denture are included on each of the upper and lower sides. 3. A each side of the vertical, according to claim 1 or 2 artificial tooth units adjacent artificial teeth each other are joined. 4. A securing means, the artificial tooth unit according to claim 1, 2 or 3 including the upper and lower double-sided adhesive tape sandwiched between the engaging portion of the artificial teeth. 5. A securing means according to claim including a plurality of clamping members which sandwich the plurality of locations of the upper and lower denture teeth portion from above and below 1,2
Or 3 artificial tooth units