KR20120029636A - Articulator and tooth molding cast for the same - Google Patents

Abstract

PURPOSE: An articulator and a teeth molding case for the same are provided to obtain precise teeth casts b corresponding to the lower jar shape of a patient. CONSTITUTION: An articulator includes an upper rotating part(100), a lower rotating part(200), and a teeth molding case(300). Hinge shafts are formed at both lateral sides of the upper rotating part. A ball is formed at the front end part of the upper rotating part in order to implement ball joint combination. A ball is formed at the front end part of the lower rotating part and to reproduce a jaw joint movement with the upper rotating part. The teeth molding case is formed into a cylinder shape with a pre-set depth. Gypsum paste is filled in the teeth molding cast. A through hole is formed at the lower side of the teeth molding case.

Description

Articulator and dental model for the same {ARTICULATOR AND TOOTH MOLDING CAST FOR THE SAME}

The present invention can reproduce the mouth movement in detail by enabling the movement of the upper and lower pivot in all directions, the position can be fixed selectively at each specific position, the dental model during delivery of the tooth model The present invention relates to an articulator and a dental model for the same, which allow delivery of a clean dental model in appearance.

The dental stomatic articulator is required for the prosthesis manufacturing process, and can be said to be an artificial jaw used to arrange artificial teeth at unique positions of each tooth and reproduce mandibular movement due to the movement of the jaw joint. These articulators are manufactured in different forms, ranging from very simple opening and closing mechanisms to complex and sophisticated instruments. Examples of Utility Models No. 20-0220295 (Occupational Dental Articulators) and Registration Utility Model Nos. 20-0300715 (Dental Pore articulator).

1 is a view showing the articulator described in the conventional registered utility model No. 20-0220295 (dental articulator), the conventional articulator is the upper frame 30 and the lower frame 40 around the hinge axis (12) The lower frame 40 was configured to reproduce the movement of the jaw joint, and the lower frame 40 was configured to press the hinge shaft 12 by the elastic spring 46 and to allow the upper frame 30 to flow left and right. However, the structure of the articulator cannot move the upper frame 30 to the left or right, or can only implement the vertical movement of the upper frame 30 and the lower frame 40, and thus it is not possible to describe the oral structure of different dimensions in detail. There was. That is, in the case of a person has a oral structure of various dimensions for each person, in particular, the distance between the maxillary and the mandible is different, and whether the mandibular forward protrusion is different, the interlocking position of the upper and lower teeth is different. However, despite such differences among people, the articulator has a problem in that it is not possible to vary the distance between the maxillary and the mandible and the degree of forward protrusion of the mandible, so that the individual variation cannot be reflected. In addition, in the case of the conventional articulator, the portion of the hinge shaft 12 to which the elastic portion 46 contacts is configured to have a smooth cylindrical shape, so that the elastic portion 46 is moved from the hinge shaft 12 during excessive torsional movement of the upper frame 30. There was a difficulty in using the sliding upper frame 30 is separated from the lower frame 40.

On the other hand, Figure 2 is a view showing the articulator described in the conventional registered utility model No. 20-0300715 (dental articulator), the conventional articulator is the upper frame (3) and the lower frame (2) by the hinge (9) It was coupled in a ball joint manner to the moving upper and lower manipulators (1). Therefore, the upper frame (3) and the lower frame (2) by the ball joint method can be freely moved to reproduce the free oral structure. However, even in accordance with the prior art, the shape of the ball housing has a hemispherical shape, so that the upper and lower flows of the upper frame 3 and the lower frame 2 are limited. In particular, after the prosthesis is manufactured, the plaster model 4 Because it was delivered from the frame (2,3), it was delivered to the dentist with the gypsum powder always flying, causing hygiene or aesthetic problems, and the gypsum powder was always generated even when the model (4) was stored at the dentist. There were also difficulties in.

The matters described as the background art are only for the purpose of enhancing the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the related arts known to those skilled in the art.

The present invention has been proposed to solve this problem, it can be reproduced by adjusting the distance between the upper and lower jaw or the lower jaw according to the difference in the oral structure, and work to match the plaster model with the dental model The purpose of the present invention is to provide an articulator and a dental model for the articulator, which are easy and can improve the quality of the model upon delivery.

Articulator according to the present invention for achieving the above object, the upper pivot portion is formed with a hinge shaft protruding on both side ends and a ball joint coupling in the front end portion; A lower pivot portion coupled to the hinge shaft to reproduce the vertical movement of the tooth together with the upper pivot portion, and a ball joint coupling formed at the front end thereof; And gypsum dough is filled inside as a cylindrical shape having a constant depth, a curved through hole formed along the teeth for the separation operation of the tooth fixing pin is formed on the lower end, the upper or lower pivot part at the rear end The ball housing is formed is a ball housing that can be inserted or removed, the ball housing is formed in the bolting hole penetrating it is a tooth model that the rotation of the ball is selectively fixed by the bolt tightening method.

The ball housing of the dental modeling frame may be formed of a base embedded in the rear end of the dental modeling and a receiving portion into which the ball may be inserted or removed, so as to protrude from the base.

The accommodating part of the ball housing may be formed so that the inner surface is curved to accommodate the ball, but is formed to extend only on both sides to surround the ball so as not to limit the vertical movement of the inserted ball.

The lower pivot portion, the support portion is formed in the upper end of the hinge shaft of the upper pivot portion is fitted in the rear hook, the shanghai East coupled to slide up and down the support portion, coupled to slide back and forth in Shanghai East and the front end portion The ball may be formed of a front and rear moving part, and the upper end of the support may be formed with an elastic part for pressing the upper rotating part forward from the rear to prevent the hinge shaft from being separated from the hook.

The elastic portion is formed in the front end of the pressing end of the spherical portion, the upper end portion in contact with the pressing end is formed with a guide groove which is curved along the circumference of the upper rotation portion so that the pressure end is not separated from the inside of the guide groove Can be slid.

The shandong east portion vertically penetrates the center portion of the support portion and slides inward, and the front and rear moving portion penetrates the lower portion of the shandong eastern portion horizontally and slides inward, and bolting holes are formed in the support portion and the shandong east portion, respectively. As a result, the sliding portion of the inner and east moving parts of the inner and outer parts may be selectively fixed.

On the other hand, the dental model for articulator according to the present invention for achieving the above object, the plaster dough is filled therein as a cylindrical shape having a certain depth, formed along the teeth for the separation operation of the tooth fixing pin on the lower surface A curved through hole is formed, and a ball housing for ball joint coupling is formed at the rear end, and a ball hole for penetrating the ball housing is formed, and the ball inserted or removed therein is selectively fixed by bolting method. You can do that.

In addition, the dental model is a cylindrical shape having a lower surface of the semi-circle, the through-hole may be formed in an arc shape of a semi-circle along the entire tooth.

Alternatively, the dental model is a cylindrical shape having a lower surface of the quadrant, the through hole may be formed in an arc shape of the quadrant along the half of the teeth.

According to the articulator and tooth model for the structure as described above, it is possible to move the position of the lower pivot up and down, left and right, and selectively fix the position, so that the distance of the maxillary and mandibular and mandibular different for each individual It is possible to produce more precise tooth model by actively responding to the degree.

In addition, the shape of the ball housing is formed only to the side to catch the ball, the up and down rotation of the dental model is more easy, it is possible to fix the angle of the dental model using the bolt fixing method.

In addition, the dental model made of gypsum can be integrated with the modeling frame so that the work and delivery can be significantly shortened, and the hygiene, aesthetics, and storage of the manufactured product are easy.

In addition, the spherical guide groove is formed in the hinge shaft of the upper pivot portion and the pressing end is formed into a spherical surface to prevent separation of the upper pivot portion and the lower pivot portion even when twisting the upper pivot portion.

1 is a perspective view of a conventional articulator and a dental model.
Figure 2 is a perspective view of another articulator and the dental model of the prior art.
Figure 3 is a perspective view of the articulator and tooth model for the same according to an embodiment of the present invention.
Figure 4 is a perspective view of the upper and lower rotational portion of the articulator shown in FIG.
5 is a perspective view of the upper pivot of the articulator shown in FIG.
Figure 6 is a rear perspective view of the dental model shown in FIG.
Figure 7 is a front perspective view of the dental model shown in FIG.
8 is a perspective view from below showing a dental model according to another embodiment of the present invention.
9 is a perspective view from above of the dental model shown in FIG. 8;
10 is a perspective view showing a state in which the cover is coupled to the dental model shown in FIG.
FIG. 11 is a cross-sectional view taken along line DD of the dental models shown in FIG. 10. FIG.

Hereinafter, with reference to the accompanying drawings looks at with respect to the articulator and a dental model for the same according to a preferred embodiment of the present invention.

Figure 3 is a perspective view of the articulator and a dental model for the same according to an embodiment of the present invention, Figure 4 is a perspective view of the upper and lower pivot, Figure 5 is a perspective view of the upper pivot.

The articulator and dental model therefor according to the embodiment of the present invention, the hinge shaft 120 protruding from both side ends is formed and the upper pivot portion 100 is formed with a ball 140 for ball joint coupling at the front end portion ; A lower pivot 200 coupled to the hinge shaft 120 to reproduce the jaw joint movement with the upper pivot 100 and having a ball 270 for ball joint coupling at the front end; And gypsum dough (A) is filled inside as a cylindrical shape having a constant depth, a curved through hole 322 formed along the teeth for the separation operation of the tooth fixing pin (B) is formed on the lower end, the rear end A ball housing 360 to which the balls 140 and 270 of the upper rotating part 100 or the lower rotating part 200 can be inserted or removed is formed, and the ball housing 360 has a bolting hole 367 therethrough. It is formed; the teeth model 300 is fixed to the rotation of the ball (140, 270) selectively by tightening the bolt (368); includes.

The upper pivot 100 is to reproduce the maxillary motion of the oral cavity, the hinge shaft 120 is formed at the rear end and the ball 140 is formed at the front end. The hinge shaft 120 is formed to the left and right about the body to provide a center of rotation of the upper pivot 100. The dental model 300 is coupled or removed to the ball 140 of the front end.

The lower pivot 200 is to reproduce the mandibular movement of the oral cavity, the support 220 is formed on the upper end and the support 220 is caught so that the hinge shaft 120 of the upper pivot 100 is fitted from the rear. Ring 222 is formed. Specifically, the support 220 has an upper end portion is a "C" shape, the hook 222 is formed at both ends, and the legs 225 extends like the "U" downward from both ends, the center portion 226 )

Shanghai dongbu 250 is coupled to the central portion 226 to be slid up and down. Preferably, Shanghai East 250 is moved up and down inside the central portion 226 for this purpose to form a rectangular through-hole 229 and a sliding groove in the central portion 226, Shanghai East 250 is a corresponding A sliding rail 252 having a rectangular cross section and sliding in a sliding groove is formed. In addition, a bolting hole is formed in the central portion 226 of the support part 220 to allow selective fixing of the east east part 250. When the bolt 228 coupled to the bolting hole is tightened, the position of the east east part 250 is fixed. When the bolt 228 is loosened, the fixing is released to enable the vertical sliding movement. Since the sliding motion of the east part 250 is possible, the tooth model can be produced while actively responding to the difference in distance between the maxilla and the mandible, which are different for each person.

On the other hand, the lower end 254 of Shanghai East 250 has a shape of a sliding body extending horizontally long. The front and rear moving parts 260 are inserted into the sliding body to slide back and forth, and a ball 270 is formed at the front end of the front and rear moving parts 260. In order to slide the front and rear movement unit 260, the lower end portion 254 of the Shanghai east unit 250 forms a through hole 258 and a sliding groove, and the front and rear movement unit 260 has sliding rails 262 formed on both sides thereof. The lower portion 254 of the eastern part 250 forms a bolting hole and couples the bolts 256 so that the sliding of the front and rear moving parts 260 is selectively fixed or released. Through the sliding of the front and rear movement unit 260 to actively respond to the degree of protrusion of the mandible that differs from person to person can produce a tooth model, through which a more sophisticated prosthesis can be produced. On the other hand, the cross-sectional shape of the Shanghai East 250 and the front and rear moving unit 260 is a square, the sliding is stable and the fixing through the bolt can be made stable by increasing the friction force due to the surface contact.

Meanwhile, the elastic part 240 is coupled to the support part 220 of the lower pivot part 200 to press the hinge shaft 120 of the upper pivot part 100 to the front. Specifically, the elastic portion 240 is the support rod 241 penetrating through the central groove 224 of the support portion 220, the hemispherical pressing end 244 formed in the front end of the support rod 241, the support rod 241 after It is formed at the end and is inserted into the engaging portion 246, the support rod 241, which is caught by the central groove 224 of the support portion 220 so that the support rod 241 is not separated from the front of the support portion 220 and the pressing end 244 It is composed of a spring 242 is placed between and provides an elastic force. The elastic part 240 presses the hinge shaft 120 to the hook ring 222 by pressing the upper pivot 100 forward from the rear, through which the upper pivot 100 in the tooth model manufacturing process Even when moving to the left and right to reproduce the left and right movement of the maxilla serves to prevent the upper rotating part 100 and the lower rotating part 200 is separated.

In addition, the hemispherical pressing end 244 is pressurized portion is formed in the curved guide groove 160 along the circumference of the upper rotating portion 100, the pressing end 244 is the inner side of the guide groove 160 Make sure that the slide does not deviate from the. If the portion pressed by the pressing end 244 is in the shape of a smooth cylinder or the guide groove 160 is not formed, the pressing end 244 will slide easily and the upper pivot portion 100 will be displaced. Due to the shape of the 160 and the shape of the pressing end 244, even in the case of excessive left and right movement, the upper rotating part 100 and the lower rotating part 200 can maintain a combined state without being separated from each other.

On the other hand, the dental model 300 is coupled to the balls 140 and 270 of the upper pivot 100 and the lower pivot 200, respectively. FIG. 6 is a rear perspective view of the dental model, and FIG. 7 is a front perspective view of the dental model, referring to the dental model as follows.

The upper pivot 100, the lower pivot 200 and the dental model 300 can be freely rotated in a state in which the dental model 300 is coupled by coupling the ball joint type. To this end, the dental model 300 has a ball housing 360 is formed at the rear end. The ball housing 360 is formed of a base 362 embedded in the rear end of the dental model 300 and a receiving portion 365 to which the balls 140 and 270 can be inserted or removed so as to protrude from the base 362. do. Receiving portion 365 is formed in a curved surface to accommodate the ball (140,270) the inner surface (368) extends only on both sides to form a shape to surround the ball (140,270) inserted into the vertical movement of the ball (140,270) Do not restrict it. That is, as shown in the shape of the accommodating part 365, so as to surround the ball only from the side, so as not to limit the vertical rotation angle of the dental model 300. Through this, it is possible to more clearly describe the inclination of the maxilla or mandible of the person and the change of angle during the chewing movement. In addition, the end of the receiving portion 365 is formed so that the engaging projection (366) for holding the inserted ball on both sides, so that the inserted ball is rarely separated from the receiving portion 365 unless the force is applied a predetermined size or more. This is preferred.

In addition, the receiving portion 365 is formed so that the bolting hole (367), by inserting and tightening the bolt (368) so that the inclination angle of the dental model 300 is fixed. The fastening means can be fixed by the rotation of the ball by pressing the bolt 368 to tighten the ball even if the loosening phenomenon of the receiving part 365 due to a lot of rotation, so the desired angle of the upper or lower jaw The advantage is that it can be fixed stably at an angle.

On the other hand, the dental model 300 is in the shape of a cylinder having a certain depth, the plaster dough (A) is filled inside and the tooth (C) model is embedded on the plaster dough (A). In general, the tooth (C) model is embedded in the plaster dough (A) in the state in which the fixing pin (B) is coupled to the lower end of the tooth, the plaster dough (A) after the teeth of the plaster dough (A) is embedded Pushing the fixing pin (B) on the opposite side has a configuration such that the tooth (C) is separated from the plaster dough (A). Through this configuration will be able to work one by one tooth (C).

In addition, when the gypsum dough (A) is hardened, the gypsum powder is easily dropped or blown away despite careful operation. Therefore, when the tooth (C) model consisting of gypsum is damaged or the aesthetics of the product to be delivered is impaired, even in the case of dental management there is a lot of difficulties in storage because gypsum powder is blown easily.

The present invention is to solve this problem, the plaster mold (A) in the solid state and the dental mold 300 is separated from the upper pivot portion 100 and the lower pivot portion 200 to work and deliver will be. Specifically, the dental model 300 according to an embodiment of the present invention is a cylindrical shape consisting of a lower surface 320 and the side surface 340 surrounding it, the lower surface 320 is a separation operation of the tooth fixing pin (B) A curved through hole 322 is formed along the teeth, and a ball housing 360 for ball joint coupling is formed at a rear end thereof, and the ball housing 360 has a bolting hole 367 therethrough. It is formed so that the balls (140, 270) that is inserted or removed therein in the manner of tightening the bolt (368) is selectively fixed.

Therefore, according to the dental model of the present invention, the plaster dough (A) and the tooth (C) model as shown in Figure 6 through the through hole 322 of the lower surface 320 in a fixed state to the dental model 300 Separating the fixing pin (B), it is possible to separate the tooth (C) as shown in FIG. Through this, the plaster powder does not fly even during precision work of the tooth, and even after the completion of the dental pore work, the dental model is delivered in a fixed state to the mold so that the plaster powder does not fly.

On the other hand, the dental model is formed in a semi-circular cylindrical shape to produce a dental model of the entire tooth, as in the embodiment of Figure 6 to 7, and the through-hole 322 may also be formed along the arc shape of the semi-circle However, as in the case of Figs. 8 to 9, when only the dental model of the half teeth is to be produced, the dental model frame is formed into a quadrant cylindrical shape, and the through hole 322 'may be formed along the arc shape of the quadrant. There will be. In some cases, it may not be necessary to manufacture all the dental models. In such a case, it is necessary to manufacture the dental model by changing the shape of the dental model so that only the necessary dental models can be manufactured as shown in FIGS. 8 to 9. This is because it is efficient in terms of savings.

As such, when manufacturing the dental model 300 'in the shape of a quadrant, the lower surface 320' is also in the shape of a quadrant and the side surface 340 'is formed along the lower surface 320'. Meanwhile, in the dental model, the ball housing 360 'having the receiving portion 365' is coupled to be embedded at the rear end through the base 362 ', and a bolting hole is formed in the ball housing 360'. Fixing the ball through 368 'may be configured in the same manner as the embodiment of FIGS. 6 to 7.

On the other hand, Figure 10 is a perspective view showing a state in which the cover coupled to the dental model shown in Figure 8, Figure 11 is a cross-sectional view taken along the line D-D of the dental models shown in FIG. 10 illustrates that the cover 400 is further coupled to the dental model 300 illustrated in FIG. 8, and the cover 400 is added to the tubular shape of the dental model 300. When it is delivered to protect the teeth (C) model of the transport or storage at the same time prevent the gypsum powder of the plaster dough (A) exposed on the upper surface to prevent the appearance of neat or hygienic more neat model 300 This can be. The cover 400 of such a dental model 300 is formed in the same shape as the cylindrical shape filled with plaster plaster of the dental model 300 to give a sense of unity, but the material is formed of a transparent plastic material of the tooth inside (C) It is desirable to allow the model to be exposed to the outside so that teeth can be more easily identified.

In addition, the cover 400 of the dental model 300 may be used a variety of means for coupling with the cylindrical shape, as shown, of the side 440 surrounding the upper surface 420 of the cover 400 Protruding portions 442 are formed at both side ends, and the protrusion 442 and the side surface 340 of the dental model 300 may be pre-fastened through the coupling of the groove 344 / protrusion 444. In this case, when the cover 400 is pressed and inserted, the cover 400 and the tubular shape are securely and easily fastened, and when the projection 442 of the cover 400 is flipped up, the tub 400 is easily separated from the tubular shape to facilitate storage and transportation. .

While the invention has been shown and described with respect to particular embodiments, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit of the invention provided by the following claims. It will be self-evident for those of ordinary knowledge.

100: upper pivot 120: hinge shaft
140: ball 200: lower pivot
220: support portion 240: elastic portion
250: East Shanghai 260: Post-War Movement
270 ball 300: tooth model
322 through hole 360 ball housing
400: cover

Claims (10)

Hinge shafts 120 protruding from both side ends thereof and an upper pivot portion 100 having a ball 140 for ball joint coupling at a front end portion;
A lower pivot 200 coupled to the hinge shaft 120 to reproduce the jaw joint movement with the upper pivot 100 and having a ball 270 for ball joint coupling at the front end; And
Gypsum dough (A) is filled inside as a cylindrical shape having a constant depth, a curved through-hole 322 formed along the teeth for the separation operation of the tooth fixing pin (B) is formed on the bottom, the rear end portion A ball housing 360 through which the balls 140 and 270 of the upper rotating part 100 or the lower rotating part 200 can be inserted or removed is formed, and the ball housing 360 has a bolting hole 367 therethrough. Articulator (300) is formed to form a bolt (368) is fixed to the rotation of the ball (140,270) selectively in a tightening manner. The method according to claim 1,
The ball housing 360 of the dental model 300 is formed to protrude from the base 362 and the base 362 embedded in the rear end of the dental model 300, the ball (140, 270) can be inserted or removed Articulator, characterized in that consisting of the receiving portion (365). The method according to claim 2,
The accommodating part 365 of the ball housing 360 has an inner surface 368 formed in a curved surface to accommodate the balls 140 and 270, but is formed and inserted to extend only in both sides to surround the balls 140 and 270. Articulator, characterized in that it does not limit the vertical movement of (140,270). The method according to claim 1,
The lower pivot 200 may slide up and down on the support 220 and the support 220 having a hook 222 on which the hinge shaft 120 of the upper pivot 100 is fitted from the rear. It is composed of the front and rear moving parts 260 coupled to be slid back and forth to the Shanghai East 250, Shanghai East 250 is formed so that the ball 270 in the front end, the upper end of the support portion 220 in the rear Articulator, characterized in that the elastic portion 240 is formed so that the hinge shaft 120 is not separated from the locking ring 222 by pressing the upper pivot 100 forward. The method of claim 4,
The elastic portion 240 has a spherical pressing end 244 is formed at the front end, the portion that the pressing end 244 in the upper rotating part 100 is dug into the curved surface along the circumference of the upper rotating part 100 Articulator, characterized in that the guide groove (160) is formed so that the pressure end (244) is slid without departing from the inside of the guide groove (160). The method of claim 4,
The shanghai eastern part 250 vertically penetrates the center part 226 of the support part 220 and slides inward, and the front and rear moving part 260 penetrates horizontally through the lower end 254 of the shanghai eastern part 250 horizontally. Sliding in, support portion 220 and Shanghai East 250 is a bolting hole is formed in each of the bolts (228, 256) fastening method characterized in that the sliding of the inner Shanghai East 250 and the front and rear moving unit 260 is selectively fixed Articulator. Gypsum dough (A) is filled inside as a cylindrical shape having a constant depth, a curved through hole 322 formed along the teeth for the separation operation of the tooth fixing pin (B) is formed on the lower surface 320, A ball housing 360 for ball joint coupling is formed at the rear end, and the ball housing 360 is formed with a bolting hole 367 penetrating therethrough, so that the ball is inserted or removed in the bolt 368 tightening method ( Dental model for articulators to allow selective fixation. The method according to claim 7,
The dental model is a cylindrical shape having a lower surface 320 having a semi-circular shape, the through-hole 322 is formed in an arc shape 322 of a semi-circle along the entire tooth. The method according to claim 7,
The dental model is a dental model for articulator, characterized in that the lower surface (320 ') is a cylindrical shape having a quadrant shape, the through hole (322') is formed in an arc shape of the quadrant along half of the teeth. The method according to claim 7,
The tooth model is the cover 400 of the same shape as the cylindrical shape is coupled to the upper end of the cylindrical shape, the cover 400 is formed of a transparent plastic material so that the inner tooth (C) model can be exposed Dental model for articulator.

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