JPH0527777U - Orthodontic training device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an orthodontic training device capable of observing the whole or partial movement of teeth during orthodontics and fixing the tooth after movement in a short time. [Constitution] Wax jaw 1 made of wax imitating the shape of the jaw
And a heating device 2 capable of supplying heat, and at least one training tooth 3 is planted and fixed to the alveolar portion of the wax jaw 1. The training tooth 3 constitutes a labial surface or a buccal side surface portion. The synthetic resin portion 4 and the metal portion 5 forming the portion from the side of the tongue to the tooth root are integrated, and the heating device 2 selectively does not contact the metal portion 5 of the training tooth 3. It is arranged so that heat can be supplied in the state.
Further, the heating device 2 of the above device is preferably a blower capable of supplying warm air, and the heating device 2 selectively heats a part of the dentition including the training tooth 3 with heat. In the case where the teeth are arranged so that they can be supplied, the orthodontic training can be performed only for the teeth to be planted in the specific area of the dentition.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an orthodontic training device used for dental training in clinical education of dentistry.

[0002]

[Prior Art]

 Conventionally, in clinical education of dentistry, pre-clinical training, also called model training, is carried out before conducting clinical training for actual patients. This is a practical training that uses a tooth model and a jaw model and has a lot of colors in the technical training.

In recent years, in dentistry, it has become more common to improve occlusion and correct the alignment of teeth, and a general treatment method is to apply it to the labial side of teeth. There is a method of applying dental adhesives respectively, bonding the brackets, fixing one orthodontic wire along the dentition, and gradually improving malocclusion using the elasticity of the wire. Model training is indispensable for mastering such advanced treatment techniques. In particular, when treating an actual patient with such an orthodontic method, the tooth to be corrected gradually moves over a long period of time. It is required to be able to practice teeth correction.

From this point of view, as a model suitable for orthodontic practice, a structure in which metal teeth are planted in a state of being hardened with wax on a tray has been used so far. However, when performing orthodontic training using this model, first of all, the tooth to be orthodontic is placed on the adjacent tooth or the whole tooth that has been planted through a bracket that is bonded with a dental adhesive. After connecting with a wire, the entire jaw model is immersed in hot water at 35 to 60 ° C. If you leave it in warm water for a while, the wax that fixes the tooth will soften and the tooth position will start to move, and when correction is complete, remove it from warm water and cool it with water or air to cool the wax. Let it solidify.

However, in the case of such a model immersed in warm water, the tooth moving speed can be adjusted depending on the type of wax used and the temperature of the warm water, but there are the following problems. is there. That is, since the entire jaw model is immersed in warm water, the entire wax that fixes the teeth becomes soft, and only the wax at the desired position cannot be softened. Orthodontic training is not possible, and because the jaw model is immersed in warm water, the person doing the training cannot observe the movement status of the teeth to be corrected. For example, it will melt and stain during training.

In addition, in the above-mentioned training model, the teeth to be planted in the alveolar part of the jaw model are made of only metal so that the heat from the hot water can be sufficiently transferred to the wax. Therefore, the heat remains in the tooth for a long time even after it is taken out from the hot water, and rapid cooling cannot be performed, and the solidification rate of the wax becomes slow, so that the tooth is completely fixed. There was a problem that it took time. As described above, the conventional training model that is used by immersing it in warm water is not suitable for the orthodontic training of teeth.

[0007]

[Problems to be solved by the device]

 The present invention improves the above-mentioned drawbacks and enables the practitioner to observe the moving condition of the tooth being corrected, so that no stain is generated during the training and the tooth after moving is fixed in a short time. An object of the present invention is to provide an orthodontic training device that can be used. It is also an object of the present invention to provide an orthodontic training device capable of selectively performing orthodontic training on a part of a dentition.

[0008]

[Means for Solving the Problems]

 The orthodontic training device of the present invention comprises a wax jaw imitating the shape of a jaw and formed of wax, and a heating device capable of supplying heat. At least one training tooth is erected and fixed to the part, and the training tooth is formed by integrally forming a synthetic resin portion made of synthetic resin and a metal portion made of metal. The synthetic resin part is provided on the labial or buccal side, while the metal part is provided on the part from the tongue side to the tooth root, and the heating device is selected for the metal part. In particular, it is arranged so that heat can be supplied in a non-contact state.

That is, in the orthodontic training device of the present invention, the wax in the alveolar part of the wax jaw on which the training tooth is planted is softened by the heat supplied from the heating device in a non-contact state, and further heated. The heat from the device is selectively supplied from the lingual side of the tooth to the metal part located at the position of the tooth root, thereby solving the problem in the conventional training model. Moreover, in the present invention, since the tooth to be planted in the alveolar part of the wax jaw has a structure in which the synthetic resin and the metal are integrated, the heat capacity is smaller than that of the conventional one, and the wax of Fast solidification rate.

Further, the present invention is also characterized in that the heating device in the above-mentioned orthodontic training device is a blower capable of supplying hot air. Furthermore, the present invention is characterized in that the heating device in the above-mentioned orthodontic training device is arranged so as to selectively supply heat to a part of the dentition including the training tooth. It is also what

Next, an example of the orthodontic training device of the present invention will be shown in the drawings, and the present invention will be described in detail. FIG. 1 is a perspective view showing the state of the orthodontic training device of the present invention in use, FIG. 2 is a view of the device shown in FIG. 1 seen from above, and FIGS. FIG. 4 is a view showing a cross-sectional structure taken along the line AB in FIG. 4, and FIG. FIG. 6 is a perspective view showing a usage state of the device of the present invention in the case of

In the orthodontic training device shown in FIGS. 1 and 2, a heating device capable of supplying warm air to the inside of the oral cavity of a wax jaw 1 made of wax, which is shaped like a jaw. 2 is arranged so that the heating device 2 can supply hot air to the entire part of the training tooth 3 to be planted over the entire alveolar part of the wax jaw 1 from the lingual side to the root. A hot air supply nozzle 6 having a different shape is attached. Then, the root portion of the training tooth 3 is planted and fixed to the wax jaw 1 fitted in the jaw tray 9. In the apparatus shown in FIGS. 1 and 2, the training tooth 3 is entirely erected, but the training tooth 3 in the present invention may be provided in at least one position of the dentition. When fixing the training tooth 3 to the alveolar part of the wax jaw 1, after making a mold simulating the shape of the jaw, the training tooth 3 was placed in this and melted by heat. It is common to pour wax, but at this time, the training tooth 3 to be orthodontic is fixed by shifting the position and direction of planting as appropriate according to the content of the training.

In the present invention, the wax constituting the wax jaw 1 may be any one as long as it is softened by the heat supplied from the heating device 2, and commercially available wax can be widely used, but the softening point is 35. It is preferably about 85 to 85 ° C, particularly preferably 40 to 45 ° C. When a wax having a softening point of 35 ° C. or lower is used, it is easy to soften the wax, but after the tooth is straightened, the wax is hard to solidify even if the heat supply is stopped, and the softening point is 85%. For waxes above ℃, a large amount of heat is required to soften the wax. The heating device 2 in the device of the present invention is not particularly limited as long as it can selectively supply the amount of heat capable of softening the wax composing the wax jaw 1 in a non-contact state. However, it is preferable to use warm air. When supplying heat with warm air, a commercially available hair dryer or the like can be used. Further, in the present invention, as the heating device 2, for example, a heating element is provided at the position of the tongue, and a reflection plate capable of reflecting heat to the vicinity of the tooth to be corrected is provided, while A shield plate may be provided so that heat is not supplied to the teeth.

In the present invention, the training tooth 3 that is to be implanted and fixed to the wax jaw 1 has a structure in which the synthetic resin portion 4 and the metal portion 5 are integrally formed as shown in FIG. The synthetic resin portion 4 is provided on the labial surface or the buccal side surface portion, while the metal portion 5 is provided on the portion from the lingual side surface to the tooth root. Therefore, when the heat from the heating device 2 is supplied to the metal portion 5, the metal portion 5 is heated, the wax in the portion where the training tooth 3 is fixed by sprouting is softened, and the training tooth 3 is It becomes possible to move. Particularly, in the training tooth 3 according to the present invention, since the labial surface or the buccal side surface portion is formed of synthetic resin, compared with a tooth that is conventionally formed entirely of metal, Heat is not accumulated in the resin portion 4, and the heat capacity of the entire tooth becomes small. For this reason, if the movement of the training tooth 3 is completed and the supply of warm air is stopped, the wax solidifies relatively quickly, and the time required for fixing the training tooth 3 is shortened.

Next, the procedure for carrying out training using the orthodontic training device of the present invention will be described. First, according to the contents of the training, the position and direction of the teeth to be corrected are fixed by shifting them from the correct position and direction. At this time, the position and direction may be shifted when the teeth are planted, or the wax portion may be heated again after the planting to shift the position and direction. Then, an adhesive is applied to the synthetic resin portion of the labial surface or the buccal side surface of each training tooth, and the orthodontic ears 8 are fixed along the dentition as shown in FIGS. 1 to 3. .. After that, the blower provided as the heating device 2 is operated to supply warm air to the metal portion 5 of each training tooth 3 to soften the wax composing the wax jaw 1 from around the tooth root, and thus the wire 8 is removed. Elasticity allows the teeth to be straightened, and the hot air supply is stopped when the teeth have been moved. During this time, the practitioner observes how the teeth move to determine whether the treatment was successful.

In the device of the present invention, since the labial surface or buccal surface of the training tooth 3 is made of synthetic resin, the bracket 7 for fixing the orthodontic wire 8 along the dentition is adhered. As an advantage, there is no need to use a metal adhesive as in the conventional case, and there is an advantage that the same adhesive as in the case of a living body can be used. Further, in the present invention, the heat required to move the position of the training tooth 3 is supplied in a non-contact state, so that the training tooth 3 is gradually moved from the outside. There is also an advantage that it can be easily observed. Further, unlike the conventional model for orthodontic training, the wax jaw 1 is not immersed in warm water, so that the device is not contaminated. In addition, the device of the present invention is capable of repeating the training by removing all the training teeth 3 after the training and replanting the new training tooth 3 in the alveolar part of the new wax jaw 1. ..

The wax jaw 1 in the apparatus of the present invention is not particularly limited in its structure and material as long as it can fix the training tooth 3 at the same position as the living body, but various kinds of tooth implantation in the living body are possible. It is preferable to use a structure in which a cavity corresponding to each tooth is provided so that the condition can be reproduced, and its material is wax, polyurethane resin, polyester resin, melamine resin, epoxy resin, etc. Waxes or plastics are preferred.

On the other hand, the materials of the synthetic resin portion 4 and the metal portion 5 constituting the training tooth 3 are not particularly limited, and general synthetic resins and metals can be widely used. When manufacturing such a training tooth 3, first, the metal portion 5 extending from the side of the tongue to the tooth root is prepared by casting, and then the obtained metal portion 5 is placed in a mold. It is common to put in and inject resin into the portion from the labial surface to the cheek lateral surface to form the synthetic resin portion 4.

Further, in the present invention, as shown in FIG. 4, when a blower is used as the heating device 2, hot air is selectively supplied to a part of the dentition including the training tooth 3. Therefore, a device suitable for performing correction training in a specific range can be used. As a method for limiting the blowing direction of the warm air, a detachable hot air supply nozzle 6 attached to the heating device 2 can be used. It is common to change the shape. As described above, when the temperature is selectively applied only to the teeth to be erected in the specific range of the dentition, the range to which the warm air is supplied is set to three or four parts along the dentition. It is preferable to divide into.

The orthodontic training device of the present invention is mainly intended for educational training, and may be either the upper jaw or the lower jaw, but in the case of actual treatment in the living body. In order to carry out the training in a situation close to the above, it is preferable to attach the training mannequin head model in an integrated state by combining the upper jaw and the lower jaw. The preferred embodiments of the present invention will be shown below, but the present invention is not limited thereto.

[0021]

【Example】

 Molding was performed by injecting wax into the inside of the rubber mold, and a wax jaw made of wax having a shape in which a cavity corresponding to each tooth was formed over the whole was manufactured. On the other hand, as a training tooth having a shape similar to that of a living body, first, metal is molded to form a metal portion from the lingual side of the tooth to the tooth root, and then integrated with this metal portion. Then, a urethane resin was injection-molded to form a labial surface or a buccal side surface portion, and a product having a sectional structure shown in FIG. 3 was produced. Then, the above-mentioned training tooth was planted in the same position as that of the living body in the root cavity of the wax jaw. At this time, as the tooth to be corrected, the training tooth at the position of the left and right first incisors of the dentition was fixed so as to be slightly inside the normal position.

Next, as a heating device, a hot air supply capable of supplying hot air to the metal parts of all the training teeth is provided inside the oral cavity of the wax jaw obtained as described above. A warm air blower with a nozzle attached to the tip was installed to prepare an orthodontic training device of the present invention shown in FIG.

Then, an adhesive similar to that used in the clinical floor is applied to the synthetic resin portion of each training tooth of such an orthodontic training device, and as shown in FIG. The test pieces were adhesively fixed, and each training tooth was connected along the dentition with a stainless steel wire, and fixed by tying.

After that, when the warm air blower of this device was operated to supply warm air to the metal part of each training tooth, it was observed that the left and right first incisors gradually moved to normal positions. When the correction was completed, the supply of warm air was stopped, the air was switched to cold air, and the wax was solidified. Since each training tooth in this device has a part of synthetic resin, the wax can be solidified in a comparatively short time, which is very suitable for learning the basic techniques necessary in the orthodontic clinic. It was a thing.

[0025]

[Effect of the device]

 The device of the present invention is very suitable for orthodontic practice, and when this device is used, the trainee can easily observe the movement of the tooth to be corrected from the outside, and Since the heat for softening the wax is supplied in a non-contact state by hot air or the like, the device is not contaminated. Further, in the present invention, since the training tooth to be planted in the alveolar part of the wax jaw is formed by integrally molding the metal and the synthetic resin, the heat capacity is higher than that of the conventional tooth entirely made of metal. The tooth is small and the softened wax easily solidifies, so that the tooth after the movement can be fixed in a short time.

Further, in the present invention, by limiting the position to which the heat from the heating device is supplied to a specific range of the dentition, it is possible to perform orthodontic training for only a part of the dentition. It can also be With the device of the present invention, after performing orthodontic training once, the wax is melted by heat, the tooth for training is extracted, and only the wax jaw is replaced with a new one. It is also excellent in terms of sex.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state during use of an orthodontic training device of the present invention.

FIG. 2 is a view of the orthodontic training device shown in FIG. 1 when viewed from above.

FIG. 3 is a diagram showing a cross-sectional structure taken along the line AB of the device shown in FIGS. 1 and 2.

FIG. 4 is a perspective view showing a state of use in the device of the present invention when a hot air supply nozzle 6 adapted to selectively supply hot air to a part of a dentition is attached to the heating device 2. It is a figure.

[Explanation of symbols]

 1 Wax jaw 2 Heating device 3 Teeth for training 4 Synthetic resin part 5 Metal part 6 Warm air supply nozzle 7 Bracket 8 Wire 9 Jaw tray

Claims (3)

[Scope of utility model registration request] 1. A wax jaw 1 imitating the shape of a jaw and formed of wax, and a heating device 2 capable of supplying heat.
And at least one training tooth 3 is planted and fixed in the alveolar part of the wax jaw 1, the training tooth 3
Is a synthetic resin portion 4 made of a synthetic resin and a metal portion 5 made of a metal formed integrally with each other, and the synthetic resin portion 4 is provided on the lip surface or the cheek side surface portion, On the other hand, the metal portion 5 is provided in a portion extending from the tongue side surface to the tooth root, and the heating device 2
Is disposed so that heat can be selectively supplied to the metal portion 5 in a non-contact state, the orthodontic training device. 2. The orthodontic training device according to claim 1, wherein the heating device 2 is a blower capable of supplying warm air. 3. The heating device 2 is arranged so that heat can be selectively supplied to a part of a dentition including the training tooth 3. 1
Or the apparatus for orthodontic training according to 2.