KR102453761B1 - Apparatus for dental lab analog - Google Patents

Abstract

The present disclosure relates to a dental lab analog device installed on a tooth model, provided on the upper part and below the upper part, to prevent rotation by contacting the tooth model, and is a rotation preventing part formed in a polygonal shape having a plurality of vertices. A plurality of vertices of the prevention portion are formed with an inclined surface to facilitate insertion into the tooth model, and a screw portion that passes through the upper portion and the rotation prevention portion, and is formed under the shape for accommodating the abutment and the shape for accommodating the abutment. It relates to a dental lab analog device comprising a; dental lab analog including a through hole having a.

Description

Dental Lab Analog Devices {APPARATUS FOR DENTAL LAB ANALOG}

The present disclosure relates to a dental lab analog device as a whole, and more particularly, to a dental lab analog device that can be easily inserted.

Herein, background information related to the present disclosure is provided, and they do not necessarily mean prior art (This section provides background information related to the present disclosure which is not necessarily prior art).

1 is a view showing an example of an implant presented in Korean Patent Publication No. 10-1134062, wherein the implant is an implant fixture fixed to a bone (10; Implant Fixture), a prosthesis (20; Prosthesis), and an implant fixture (10) It is coupled to and includes an abutment (30; Abutment) for supporting the prosthesis (20). The abutment 30 is fixed to the implant fixture 10 by a screw 32 in a state in which the connection part 31 is inserted into the implant fixture 10 .

FIG. 2 is a view showing an example of a method of manufacturing a prosthesis according to the related art. First, in a state in which the abutment 30 is coupled to the implant fixture 10 , an impression is obtained using the impression material 40 . Impression taking includes taking an impression of the surrounding teeth 60 .

Next, after inserting the abutment analog (33; Abutment Analog) into the obtained impression body 41, the plaster is floated. After the plaster has hardened, when the impression body 41 is removed, a model 50 to which the abutment analog 33 is fixed is obtained. The prosthesis 20 is designed and manufactured on the obtained model 50 .

3 is a view showing another example of a method of manufacturing a prosthesis according to the related art, and after a certain period of time after the implantation of the fixture, the healing abutment 34 is removed to expose the implant fixture 10, and here Insert the impression coping (35; Impression Coping).

Next, an impression body 41 is obtained through impression taking, and an implant analog 11 having the same shape as the implant fixture 10 is placed there through the impression coping 35 as a medium.

Next, the model 50 is made using gypsum. The implant analog 11 corresponding to the actual implant fixture 10 is fixed to the model 50, and when the impression coping 35 is removed, the abutment design or the prosthesis design can be performed using the model 50 have.

Recently, dentists use an oral scanner to scan a patient's mouth to create scan data. The abutment or prosthesis is designed using computer software using the scan data, and the design file is processed with a 5-axis mill or 3D printer to manufacture the abutment or prosthesis.

4 to 5 are views showing another example of a method for designing a prosthesis presented in Korean Patent Application Laid-Open No. 10-2014-0096013. First, CT image data or CT image ( 70) and the implant fixture 10 (refer to FIGS. 5 and 7) to generate image data or image 60 containing information about the oral surface in a state in which it is not placed. The image 60 may be obtained by obtaining an impression body through oral impression taking, forming a model here through a plaster pattern, and performing a CT scan or three-dimensional scan. It can also be obtained by directly scanning the oral cavity using a three-dimensional scanner.

Next, the determined implant planning information is added to the image 60 . The design of the prosthesis 20 may be performed on a computer or from the image 60 to which implant planning information is added. At this time, in order to accurately locate the implant planning information determined for the CT image 70 with respect to the image 60, it is preferable to associate the two images 60 and 70.

When designing a prosthesis using an oral scanner (CT scan, 3D scan, etc.), it is possible to check whether the processed prosthesis is correct before applying it to the patient's mouth because a plaster model (50; see Fig. 3) is not made. none. Therefore, there is a need for a lab analog for fixing the prosthesis and the abutment in order to visually check whether the prosthesis fits in the patient's mouth using the oral scanner, so it was produced.

Recently, dental models are printed using 3D printers. A hole in which the dental lab analog device is to be provided is formed in the part where the implant is to be installed in the printed tooth model. Since the performance of the 3D printer varies according to each laboratory or dentistry, the precision of the hole is low, and there is a problem in that the dental lab analog device is not well fitted into the hole.

This will be described at the end of 'Specific Contents for Implementation of the Invention'.

Herein, a general summary of the present disclosure is provided, which should not be construed as limiting the scope of the present disclosure (This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features).

According to one aspect according to the present disclosure (According to one aspect of the present disclosure), in the dental lab analog device installed on the tooth model, it is provided at the top and the bottom of the top, and prevents rotation in contact with the tooth model and , as a rotation prevention part formed in a polygonal shape having a plurality of vertices, a rotation prevention part having an inclined surface so that the plurality of vertices of the rotation prevention part can be easily inserted into the tooth model, and passing through the upper part and the rotation prevention part, and the abutment A dental lab analog device including; a dental lab analog including a through-hole having a threaded portion formed under a shape for receiving and a shape for accommodating the abutment is provided.

According to another aspect according to the present disclosure (According to another aspect of the present disclosure), in the tooth model in which the hole is formed including the passage between the upper space, the lower space and the upper space and the lower space including a fixing groove having an angle. In the installed dental lab analog device, the upper part provided in the upper space, the upper space provided in the upper space, the rotation preventing part is fixed to the fixing groove to prevent rotation, and is formed in a polygonal shape having a plurality of vertices. The angle of the plurality of vertices of the anti-rotation part is smaller than the angle, the anti-rotation part passes through the upper part and the anti-rotation part, and has a shape for accommodating the abutment and a threaded part formed under the shape for accommodating the abutment. dental lab analogs with holes; And, coupled to the screw portion of the through-hole, the first screw for moving the anti-rotation portion toward the passage; is provided a dental lab analog device comprising a.

This will be described at the end of 'Specific Contents for Implementation of the Invention'.

1 is a view showing an example of an implant presented in Korean Patent Publication No. 10-1134062,
2 is a view showing an example of a method for manufacturing a prosthesis in the prior art;
3 is a view showing another example of a method for manufacturing a prosthesis in the prior art;
4 to 5 are views showing another example of a method for designing a prosthesis presented in Korean Patent Application Laid-Open No. 10-2014-0096013;
6 is a view showing a dental lab analog device according to the present disclosure;
7 is a view for explaining a section AA' of FIG. 6;
8 to 9 are views showing in detail a dental lab analog according to the present disclosure;
10 is a view showing in detail the hole of the tooth model according to the present disclosure;
11 is a view showing an example of a method of installing a dental lab analog device according to the present disclosure.

Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings (The present disclosure will now be described in detail with reference to the accompanying drawing(s)).

6 is a diagram illustrating a dental lab analog device according to the present disclosure.

The dental lab analog device 100 is inserted into the hole 210 of the dental model 200 , and the abutment 150 is inserted into the dental lab analog device 100 .

The hole 210 is formed of an upper space 211 , a lower space 212 , and a passage 213 .

The upper space 211 is provided in the upper part of the hole 210 , the lower space 212 is provided in the lower part of the hole 210 , and the passage 213 is provided between the upper space 211 and the lower space 212 . is provided in

The dental lab analog device 100 may include a dental lab analog 101 , a first screw 140 , and a second screw 160 .

The dental wrap analog 101 may include an upper portion 110 , an anti-rotation unit 120 , a through hole 130 , and a pillar portion 170 . The dental lab analog 101 is provided in the upper space 211 .

The upper part 110 is provided on the anti-rotation part 120 and may be formed in a circular shape.

The anti-rotation unit 120 is provided under the upper part 110 , and prevents the dental lab analog 101 from rotating in the hole 210 .

The through hole 130 passes through the upper part 110 and the rotation preventing part 120 . A shape 131 for accommodating the abutment 150 is formed on the through hole 130 , and a screw part 132 is formed below the shape 131 for accommodating the abutment 150 . The screw portion 132 includes a first screw portion 132-1 and a second screw portion 132-2.

The upper portion 110 may be formed so that the center of the upper space 211 and the center of the upper portion 110 coincide with the center of the hole 210 .

The first screw 140 is coupled to the screw portion 132 of the through hole 130 . The first screw 140 includes a head 141 and a fastening part 142 , the fastening part 142 of the first screw 140 is inserted into the through hole 130 , and the head 141 is It is provided outside the through hole 130 . The first screw 140 is fastened to the second screw portion 132 - 2 .

The second screw 160 may fix the abutment 150 .

It is preferable that an extra space S1 is formed between the first screw 140 and the second screw 160 . This is because when the first screw 140 and the second screw 160 meet, they cannot be properly fixed to the second screw part 132-2 and the first screw part 132-1 of the through hole 130, respectively.

7 is a view for explaining a cross section AA′ of FIG. 6 .

The anti-rotation part 121 may be formed of a polygon 121 having a plurality of vertices 121-1.

The upper space 211 includes a fixing groove 211-2. The fixing groove 211-2 is in contact with a plurality of vertices 121-1 of the anti-rotation part 121 .

The fixing groove 211-2 and the plurality of vertices 121-1 each have an angle, and the angle θ1 of the fixing groove 211-2 is wider than the angle θ2 of the plurality of vertices 121-1. It is preferable to form For example, when the angle θ2 of the plurality of vertices 121-1 is 60 degrees, the angle θ1 of the fixing groove 211-2 may be formed at 65 degrees. When the angle θ2 of the plurality of vertices 121-1 is 90 degrees, the angle θ1 of the fixing groove 211-2 may be formed at 95 degrees. A portion where the plurality of vertices 121-1 and the fixing groove 211-2 are in contact is indicated by the dotted circle c1, the angle θ1 of the fixing groove 211-2 and the plurality of vertices 121 By forming an angle θ2 of -1) differently, only the ends of the plurality of vertices 121-1 are fixed so that the plurality of vertices 121-1 can be easily coupled while digging into the fixing groove 211-2. It is in contact with the groove 211-2.

8 to 9 are views illustrating in detail a dental lab analog according to the present disclosure.

Fig. 8 (a) is a perspective view of the dental lab analog 101, and Fig. 8 (b) is a cross-section AA' of Fig. 8 (a).

The upper part 110 may include a display unit 111 . The display unit 111 may be formed as a flat surface, and is formed on the side surface of the upper portion 110 , so that the user may use the display unit 111 as a reference in the insertion direction of the dental lab analog device 100 .

At the plurality of vertices 121-1, an inclined surface 122 is formed such that a width (L3->L2->L1) between the plurality of vertices 121-1 becomes narrower downward. The inclined surface 122 may allow the rotation preventing unit 120 to be easily inserted into the tooth model 200 (FIG. 6).

The anti-rotation part 120 may be formed to protrude from the pillar part 170 .

The pillar portion 170 may have a narrower width L4 than the upper portion 110 and the rotation preventing portion 120 .

Fig. 9 (a) is a plan view of the dental lab analog 101, and Fig. 9 (b) is a bottom view.

The center of the anti-rotation part 120 and the center of the upper part 110 may be formed to coincide.

The display unit 111 is preferably formed parallel to one surface of the polygon 121 . When the display unit 111 and the direction display unit 211-1 (FIG. 10) coincide, the rotation preventing unit 120 is also easily fitted into the fixing groove 211-2. One side of the display unit 111 and the polygonal portion 131-1 of the through hole 130 may also be parallel to the display unit 111 . Accordingly, the display unit 111 , the rotation preventing unit 120 , and the polygonal unit 131-1 may be formed to be parallel.

10 is a view showing in detail the hole of the tooth model according to the present disclosure.

A direction indicator 211-1 may be formed on the upper surface around the hole 210 . As illustrated, the direction indicator 211-1 may be formed to be connected to the upper space 211 . Of course, the direction display unit 211-1 is not limited thereto as long as it can be displayed to match the direction of the dental lab analog 101 (FIG. 8) and the direction of the hole 210.

The depth D2 of the lower space 212 is preferably formed so that the head 141 of the first screw 140 does not protrude. This is because when the head 141 protrudes, the tooth model 200 may not be fixed to the floor.

The passage 213 connects the upper space 211 and the lower space 212 . The width W3 of the passage 213 is preferably formed to be narrower than the width W1 of the upper space 211 and the width W2 of the lower space 212 . This is because the press-fitted rotation prevention part 120 is caught around the passage 213 and can be prevented from falling into the lower space 212 .

11 is a diagram illustrating an example of a method of installing a dental lab analog device according to the present disclosure;

First, as shown in Fig. 11 (a), a tooth model 200 in which a hole 210 is formed is prepared. As described in FIGS. 4 and 5, implant placement and prosthesis are designed through oral scans and CT data. At this time, the tooth model 200 may be formed by a 3D printer.

Thereafter, the upper space 211 of the hole 210 of the tooth model 200 is widened as shown in FIG. 11 ( b ). By rotating the reamer 310 into the hole 210 of the tooth model 200, it is possible to evenly widen the upper space 211 above the fixing groove 211-2. If a burr or the like is formed in the upper space 211 , the reamer 310 may remove it. The reamer 310 includes an end protection part 311 formed so as not to damage the fixing groove 211-2 and the passage 230, and a deletion part 312 for deleting the tooth model 200. If the upper space 211 of the hole 210 is sufficiently wide, this step may be omitted.

Thereafter, the dental lab analog device 100 is inserted into the upper space 211 of the tooth model 200 .

First, as shown in FIG. 11( c ), the dental lab analog device 100 is coupled to the holder 320 . The holder 320 can move the dental lab analog device 100 without missing it because the dental lab analog device 100 is small, and the dental lab analog device 100 can be inserted into the upper space 211 . The holder 320 includes a handle 321 and a fixing part 322 . The fixing part 322 may include a screw thread.

Thereafter, as shown in FIG. 11( d ), the directions of the dental lab analog device 100 and the tooth model 200 are confirmed. Check the direction of the direction display unit 211-1 of the tooth model 200 and the display unit 111 of the dental lab analog device 100, so that the direction of the direction display unit 211-1 and the display unit 111 coincide with each other Rotate the dental lab analog device 100 .

Thereafter, the dental lab analog device 100 is press-fitted into the upper space 211 of the tooth model 200 as shown in FIG. 11(e). The dental lab analog device 100 can be pressed into the tooth model 200 , and when the upper space 211 is formed small, the rotation preventing unit 120 can dig into the fixing groove 211 - 2 .

Thereafter, the first screw 140 and the dental lab analog 101 are combined as shown in FIG. 11(f). If the dental lab analog 101 is not completely inserted in the process of inserting the dental lab analog device 100 into the hole 210, the first screw 140 is coupled with the dental lab analog 101, and the second One screw 140 may pull the dental lab analog 101 toward the first screw 140 . The first screw 140 may be rotated by the driver 330 to be coupled to the second screw portion 132 - 2 ( FIG. 6 ) of the dental lab analog 101 .

Hereinafter, various embodiments of the present disclosure will be described.

(1) In the dental lab analog device installed on the tooth model, it is provided on the upper part and the lower part of the upper part, prevents rotation by contacting the tooth model, and is a rotation preventing part formed in a polygonal shape having a plurality of vertices. A plurality of vertices of the prevention portion are formed with an inclined surface to facilitate insertion into the tooth model, and a screw portion that passes through the upper portion and the rotation prevention portion, and is formed under the shape for accommodating the abutment and the shape for accommodating the abutment. Dental lab analog device comprising a; dental lab analog including a through hole having a.

(2) A display unit having a flat surface is provided on the upper side thereof, and the anti-rotation unit has a plurality of surfaces, and the dental lab analog device is formed so that the flat surface of the display unit and one surface of the anti-rotation unit are parallel to each other.

(3) A shape for accommodating the abutment is a polygonal portion for preventing rotation of the abutment; the dental lab analog device further includes a surface of the polygonal portion and is formed to be parallel to the flat surface of the display portion.

(4) between the upper portion and the anti-rotation portion; is provided with a column, the width of the column is formed to be narrower than the width of the upper portion and the anti-rotation unit dental lab analog device.

(5) In the dental lab analog device installed in the tooth model having a hole including an upper space, a lower space, and a passage between the upper space and the lower space including a fixing groove having an angle, the upper space provided in the upper space , which is provided in the upper space, is fixed to the fixing groove to prevent rotation, and is a rotation preventing part formed in a polygon having a plurality of vertices, wherein the angle of the plurality of vertices of the rotation preventing part is smaller than the angle of the fixing groove. a dental lab analog including a through hole penetrating through the prevention part, the upper part and the anti-rotation part, and having a threaded part formed under a shape for accommodating the abutment and a shape for accommodating the abutment; and a first screw coupled to the screw portion of the through-hole and moving the anti-rotation portion toward the passage.

(6) A dental lab analog device in which a plurality of vertices of the anti-rotation unit are fixed to the fixing groove.

(7) A dental lab analog device that forms an inclined surface at the plurality of vertices so that the rotation preventing unit slides into the fixing grooves at the plurality of vertices.

(8) The first screw includes a head and a fastening part, the head is provided in the lower space of the tooth model, and the fastening part is located in the passage and the upper space of the dental lab analog device.

(9) A display unit having a flat surface is provided on the upper side thereof, and the anti-rotation unit has a plurality of surfaces, and the dental lab analog device is formed so that the flat surface of the display unit and one surface of the anti-rotation unit are parallel to each other.

According to one dental lab analog device according to the present disclosure, it is possible to fix the dental lab analog so as not to rotate on the tooth model.

100: dental lab analog device 200: tooth model

Claims (9)

In the dental lab analog device installed in the tooth model,
It is provided on the upper part and below the upper part, prevents rotation by contacting the tooth model, and is a rotation preventing part formed in a polygonal shape having a plurality of vertices. and a dental lab analog including a through-hole having a threaded portion formed under a shape for accommodating the abutment and a shape for accommodating the abutment and passing through the upper portion and the anti-rotation portion.
A dental lab analog device having a display unit having a flat surface on the upper side thereof. The method according to claim 1,
The anti-rotation part has a plurality of surfaces,
A dental lab analog device in which a flat surface of the display unit and one surface of the anti-rotation unit are parallel to each other. 3. The method according to claim 2,
The shape for accommodating the abutment further includes a polygonal portion that prevents rotation of the abutment,
A dental lab analog device formed to be parallel to one surface of the polygonal part and the flat surface of the display part. The method according to claim 1,
A pillar portion is provided between the upper portion and the anti-rotation portion,
The width of the column part is narrower than the width of the upper part and the width of the anti-rotation part. In the dental lab analog device installed in the tooth model having a hole including an upper space, a lower space, and a passage between the upper space and the lower space including a fixing groove having an angle,
An upper portion provided in the upper space and an upper space provided in the upper space, the rotation preventing portion is fixed to the fixing groove to prevent rotation, and is formed in a polygonal shape having a plurality of vertices. a dental lab analog including a through-hole having a threaded portion formed under a shape for accommodating the abutment and a shape for accommodating the abutment and passing through the anti-rotation part, the upper part and the anti-rotation part are formed to be smaller; and,
A first screw coupled to the threaded portion of the through-hole and moving the anti-rotation portion toward the passage;
A dental lab analog device having a display unit having a flat surface on the upper side thereof. 6. The method of claim 5,
A dental lab analog device in which a plurality of vertices of the anti-rotation unit are fixed to the fixing groove. 6. The method of claim 5,
A dental lab analog device that forms an inclined surface at the plurality of vertices so that the rotation preventing unit slides into the fixing grooves at the plurality of vertices. 6. The method of claim 5,
The first screw includes a head and a fastening portion,
The head is provided in the lower space of the tooth model,
The fastening part is a dental lab analog device located in the passage and the upper space. 6. The method of claim 5,
The anti-rotation part has a plurality of surfaces,
A dental lab analog device in which a flat surface of the display unit and one surface of the anti-rotation unit are parallel to each other.

Images