JP2005192722A - Connected teeth for denture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To try the reduction of labor for an arrangement of artificial teeth during a production of a denture by loosely connecting the two or more artificial teeth with a wire. <P>SOLUTION: The two or more artificial teeth 1 are arranged along a dental arch and basal parts 1a of the artificial teeth and interdental papillae 2b are connected by wax, or the like 2. The wire 5 is fixed to the middle between the basal parts 1a and crown parts 1b of the individual artificial teeth 1 with an adhesive agent 4. Bend parts 5a of the wire 5 are located between the individual artificial teeth 1 and can adjust relative distances between the individual artificial teeth 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a denture connecting tooth in which individual artificial teeth used for manufacturing a denture are connected in advance and integrated.

  Dentures are prepared by preparing edentulous jaw models, making a dyke, arranging artificial teeth on the dyke, burying the flask with gypsum, removing the wax, filling this part with acrylic resin, polymerization, dentures from the flask It is a general method to complete through the steps of taking out, grinding and polishing.

  The conventional method of arranging artificial teeth on a brave bank is to arrange and fix artificial teeth one by one on the brave bank while softening the braid with a burner or the like. This is the most important task that requires skill and time. The artificial teeth must be arranged one by one according to the individual jaw movements of the patient.

  Therefore, in order to facilitate such work, there was a connecting tooth in which the artificial tooth base and interdental papilla arranged along a standard dental arch were connected by a connecting material, which was in the patient's dental arch. It has been proposed to connect teeth that can be used for both complete dentures and local dentures. In other words, denture connection teeth have been proposed in which the external connection material is a wax that is hard enough to maintain the shaped shape, and the internal connection material is a thread, string, or narrow cloth (for example, a patent) Reference 1).

In addition, when manufacturing a denture model, a plurality of artificial teeth are connected only with wax to form a gingival part in order to minimize the shaping of the gingival part and prevent any residue in the gypsum mold. The wax is covered with the base of the artificial tooth on the front surface of the gingival part and filled in the interdental papilla, and on the back side of the gingival part, the base part is filled around the base part, There has also been proposed a connected artificial tooth in which the back surface of the gingival portion is substantially flush with the base portion and has an arcuate curved surface that is approximately similar to the oral gingiva (see, for example, Patent Document 2).
JP-A-6-261919 (paragraph numbers 0015 to 0018 and FIG. 1) JP-A-11-299808 (paragraph numbers 0009 to 0012 and FIG. 2)

  In the technique described in Patent Document 1, each of the artificial teeth has a structure in which a thread, string, or cloth is connected along the line of the dental arch without much play or margin on a line passing through the center of the base. Therefore, the range in which the artificial teeth can be moved and adjusted is limited. That is, in the connected state, the artificial tooth cannot be moved so much for adjustment.

  Further, in the technique described in Patent Document 2, since the connection is made only with wax, the adjustment range for each artificial tooth is narrow, and individuality is given to each individual arrangement (for different jaw movements of patients individually). Can not be aligned). In the case of anterior molar arrangement, if the thickness is thinner than the artificial tooth, it is necessary to scrape the base, but in such a case, if the connection is made only with wax, the base is scraped. If dropped, the connection by the wax is released, and the arranged artificial teeth may be broken.

  An object of the present invention is to provide a dental prosthesis connecting tooth for connecting a plurality of artificial teeth with wires with a margin so as to save labor of an artificial tooth arrangement at the time of manufacturing a denture.

  The invention of claim 1 is a denture connecting tooth in which a plurality of artificial teeth corresponding to the upper jaw or the lower jaw are arranged along the dental arch and connected together by a wire. The curved portion has a bent portion, and is fixed to each artificial tooth at an intermediate portion between the base portion and the crown portion, and the bent portion is located between the artificial teeth. To do.

  Here, “bent into a corrugated shape” means that there is a portion (of the wire) that is bent (curved) to allow the artificial tooth to be connected and bent on the back side of the artificial tooth. This means that since the bent portion exists, it is possible to adjust the relative adjustment range of the adjacent artificial teeth over a considerably large range three-dimensionally.

  The “wire” may be a linear material having a strength necessary for connecting artificial teeth. For example, an orthodontic brass wire (0.1 to 0.5 mm in diameter) can be used. The length needs to be long enough to connect all the artificial teeth. The material of the artificial tooth is appropriately selected. Further, “the wire is fixed at the intermediate portion between the base portion and the crown portion with respect to each artificial tooth”, but it is particularly preferable to fix the wire at a position where it is finally concealed by the gingival portion.

  In this way, the bent portion of the wire that connects the artificial teeth comes to be located between the artificial teeth, so compared to the case of simply connecting with a straight wire (the technique of Patent Document 1), The range that can be adjusted by moving each artificial tooth is widened. That is, each artificial tooth can be adjusted to the extent that the bent portion extends.

  Therefore, it is possible to easily adjust the arrangement of the plurality of integrated artificial teeth while making corrections so as to be a dentition suitable for the dental arch of the patient. In particular, since a plurality of artificial teeth can be arranged integrally, the time is greatly shortened compared to the conventional one in which one tooth and one tooth from the middle must be arranged on the wax bank.

  In addition, when removing the wax by embedding the prepared denture model in gypsum, the wire remains in the gypsum mold. It also becomes a reinforcement.

  In that case, as described in claim 2, a concave portion is formed on the back side of the intermediate portion between the base portion and the crown portion of each artificial tooth, and the wire is fitted into the concave portion and fixed by an adhesive. It is desirable that Here, the shape and the position of the concave portion may be different for each artificial tooth and are not particularly limited as long as it can fit a part of the wire and fix it with an adhesive. In addition, as an adhesive agent, the well-known adhesive agent conventionally utilized for dentistry is used.

  In this way, it is possible to manufacture by inserting a part of the wire into the recess formed on the back side of each artificial tooth so that the bent part is positioned between them and bonding and fixing with an adhesive. It is easy to integrate the artificial teeth.

  As described in claim 3, it is desirable that the artificial teeth are connected by waxes capable of maintaining the shape at room temperature. Here, “waxes” are synthetic waxes such as paraffin and microcrystalline wax, various animal and plant waxes, and jewelery or dental waxes made by blending them to maintain the shape at room temperature (room temperature). Any type of wax can be used.

  In this way, each artificial tooth is connected by two types of connecting materials (wires, waxes), so that the artificial teeth can be arranged and labor saving in the formation of the denture. For example, a technician has been entrusted with a dentist from a dentist so far and arranged it only by experience without looking into the patient's mouth, but the dentist can easily adjust the arrangement in the mouth, In addition, after completion of the denture at the laboratory, the artificial tooth will not fall out without knowing it.

  In order to manufacture the dental prosthetic tooth according to claims 1 to 3, as described in claim 4, a concave portion is formed in the intermediate portion between the base portion and the crown portion on the back side of each artificial tooth, What is necessary is just to connect each artificial tooth with a wire by fitting in the said recessed part, fixing with an adhesive agent, extending the wire wound helically.

  If it does in this way, a bending part will come to be easily located between each artificial tooth by easy operation of fitting in the above-mentioned crevice and fixing with an adhesive agent while extending the wire wound spirally. .

  Since it comprised as mentioned above, since the wire which connects an artificial tooth has a bending part between each artificial tooth, and the relative adjustment between each artificial tooth is enabled, it connects simply. Compared to the case (the technique of Patent Document 1), the adjustable range of each artificial tooth is widened, and the teeth that are in the dental arch of each patient are corrected while correcting the arrangement of the integrated artificial teeth. Can be easily adjusted to form a line.

  Therefore, the adjustment time can be shortened compared with the conventional one, and it can be used for both complete dentures and local dentures.

  The present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic explanatory view of a denture connecting tooth with 6 maxillary anterior teeth aligned according to the present invention, and FIG. 2 is a sectional view taken along the line AA of FIG.

  As shown in FIGS. 1 and 2, the artificial tooth 1 for dentures is connected by waxes 2 including a wax ridge 2 a that covers the entire base portion 1 a of the artificial tooth 1 and an interdental papilla 2 b. In addition to the connection by the waxes 2, each artificial tooth 1 has a wire 5 (for example, an orthodontic brass wire, etc.) along the line of the dental arch at the intermediate portion between the base portion 1 a and the crown portion 1 b. (Diameter 0.5 mm).

  For example, the wire 5 can be formed into a curved shape so as to have a plurality of bent portions by extending from a spirally wound state (a state like a coil spring) having a small diameter. The bent portion 5a (curved portion) can be positioned between the artificial teeth 1 in a state in which 1 is connected. As described above, by positioning the bent portion 5a that allows relative adjustment between the artificial teeth 1 between the artificial teeth 1, the range in which the artificial teeth 1 can be adjusted is widened. ing.

  Thereby, the connection strength between the artificial teeth 1 can be ensured by the waxes 2 and the wires 5, and even if the waxes 2 are damaged during the transportation or operation, the plurality of artificial teeth 1 are connected by the wires 5. Concatenation is maintained. Since the artificial tooth 1 is not lost and lost, the artificial tooth 1 can be returned to its original state by melting the waxes 2.

  When the denture connection teeth of the present invention are arranged in accordance with the patient's jaw model, the wax dentures can be made as they are with the waxes 2, so that the labor can be saved. Further, the unnecessary portion of the artificial tooth 1 can be easily removed as usual by heating the periphery locally and softening the waxes 2. For example, to remove the unnecessary artificial teeth 1 and the brackish ridge 2a, if the portions are cut with a sharp blade and then bent by hand, the waxes 2 are easily broken and the wires 5 are easily Can be cut with a blade.

  Next, even in a local denture that requires an incorrect arrangement, even if the waxes 2 are damaged on both adjacent surfaces of the artificial tooth 1 at that part, the artificial tooth 1 is connected by the wire 5. There is an advantage that the artificial tooth 1 is not lost, the workability is not impaired, and the artificial tooth 1 is not lost. Even if extreme adjustment is required, the bent portion 2a of the wire 5 has a sufficient margin (play) between the artificial teeth 1, so that a wide adjustment range can be obtained using the margin in the bent portion 5a. You can adjust it.

  Then, the manufacturing method of the connection tooth which concerns on this invention is demonstrated concretely.

  First, a concave portion is formed by cutting or the like in the intermediate portion between the base portion 1a and the crown portion 1b of each artificial tooth 1, and a wire 5 (diameter 0.5 mm brass wire) is fitted into the concave portion (recess portion). A part of the wire 5 is positioned inside), and the adhesive 4 is applied to the part and fixed by the adhesive 4 so as not to come off.

  At this time, as described above, the wire 5 wound in advance in a spiral shape is stretched while leaving the bent portion 5a, and an intermediate portion (concave portion) between the base portion 1a and the crown portion 1b of each artificial tooth 1 is provided. Therefore, the bent part 5a is positioned between the artificial teeth 1 without difficulty. In addition, since the wire 5 is fixed to the artificial tooth 1 by using the adhesive 4 in this way, the recesses formed on each artificial tooth 1 can be different in shape and size. If the wire 5 can be fixed by the adhesive 4, it can be integrated so that the artificial tooth 1 does not come off. In this state, as shown in FIG. 3, the artificial teeth 1 are arranged linearly and are not arranged along the dental arch.

  Then, as shown in FIGS. 4 and 5, the wire 5 is bent along the dental arch. The base portion 1a of the artificial tooth 1 is connected with waxes 2 by a known method (see FIG. 1). This wax 2 forms a gingival part. In some cases, it may be handed over to the dentist in this state to adjust the arrangement in the patient's mouth.

  If the connecting teeth formed in this way are connected while softening or melting the wax bank formed in the edentulous jaw model, a denture is formed. At that time, unnecessary tooth portions may be removed by cutting the wire 5 with a blade or the like and cutting the waxes 2.

  The above-mentioned connecting teeth can be appropriately combined regardless of the type of incisor, canine, premolar, or molar. It is common to have 6 front teeth, 3 right and left front teeth, 4 right or left molars, etc. aligned on the upper and lower jaws.

  The above embodiment is an example applied to the maxillary front teeth 6 teeth, but when applied to 4 molar teeth, it can be configured as shown in FIGS. 6 (a) and 6 (b). In this case, since the base portion 11a of the artificial tooth 11 may be cut, it is necessary to set the position of the wire so that the wire 15 is not cut. Here, 12 is a wax and 14 is an adhesive.

  It goes without saying that the connecting teeth according to the present invention can be used for both complete dentures and local dentures.

It is a schematic explanatory drawing of the connection tooth for dentures of 6 upper jaw front teeth based on this invention. It is sectional drawing in the AA of FIG. It is a schematic front view which shows the state which connected the some artificial tooth which comprises the connection tooth for dentures which concerns on this invention with the wire linearly. It is a schematic front view which shows the state which arranged (curved) the some artificial tooth connected with the wire along a dental arch. It is a perspective view which shows the state which looked at the some artificial tooth shown in FIG. 4 from the back side. (A) (b) is the example applied to the lower left molar 4 teeth, (a) is a schematic sectional drawing, (b) is a schematic plan view.

Explanation of symbols

1 Artificial teeth (front teeth)
DESCRIPTION OF SYMBOLS 1a Base part 1b Crown part 2 Wax 2a Wax ridge 2b Interdental papilla 4 Adhesive 5 Wire 5a Curved part

Claims (4)

A plurality of artificial teeth corresponding to the upper jaw or the lower jaw are arranged along the dental arch, and connected to each other by a wire.
The wire is curved so as to have a plurality of bent portions, and is fixed to each artificial tooth at an intermediate portion between the base portion and the crown portion, and the bent portion is positioned between the artificial teeth. A connecting tooth for a denture, characterized in that   The denture connection tooth according to claim 1, wherein a concave portion is formed on the back side of the intermediate portion between the base portion and the crown portion of each artificial tooth, and the wire is fitted into the concave portion and fixed by an adhesive.   The artificial tooth according to claim 1 or 2, wherein the artificial tooth has a base portion and an interdental papilla that are integrally connected with a wax capable of maintaining a shape at room temperature. A plurality of artificial teeth corresponding to the upper jaw or the lower jaw are arranged along the dental arch, and a method for producing a connecting tooth for a denture that connects them integrally by a wire
On the back side of each artificial tooth, a recess is formed in the intermediate part between the base and the crown,
A method for producing a dental prosthesis, characterized in that a spirally wound wire is stretched, fitted into the recess, fixed with an adhesive, and each artificial tooth is connected with a wire.

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