KR20220030015A - Dental technician articulator - Google Patents

Abstract

An embodiment of the present invention provides a maxillary frame to which a maxillary dental model is coupled. A maxillary coupling comprising a pivot bar coupled to one end of the maxillary frame so that the axial directions are perpendicular to each other, and a convex portion formed along the outer circumferential surface of the central region of the pivot. wealth; and a mandible frame to which the mandibular tooth model is coupled, a central column erected at the end of the mandible frame, and a seating part formed at the top of the central column in a shape corresponding to the block part so that the convex part can be seated. It provides a dental articulator, characterized in that it includes, and the block portion and the seating portion is formed to be inclined.

Description

Articulator for dental technicians {DENTAL TECHNICIAN ARTICULATOR}

The present invention relates to an articulator for dental work, and more particularly, to an articulator for dental work that reproduces horizontal movement of the maxilla and mandible.

The present invention relates to an articulator for checking the occlusal state of a patient's teeth, and more specifically, a human temporomandibular joint in 3D so that the occlusal state can be precisely and specifically checked after fixing the upper and lower teeth models obtained from the patient. It is about the articulator to implement.

In general, the articulator is an instrument used for manufacturing and diagnosing dentures, crown restorations, prostheses, etc. by measuring the occlusal state of teeth and gums. It is a mechanism that mechanically imitates The articulator is not only mainly used for diagnosing diseases that may arise from occlusion problems and making a treatment plan, but also is a device used in various ways for dental treatment such as implants and orthodontics.

It is important to accurately reproduce the jaw movement by accurately reflecting the condition of the maxilla and mandible in such an articulator.

However, the anatomical positional relationship of the human body varies greatly depending on the individual, and research on the jaw movement itself is currently ongoing, so it is very difficult to accurately reproduce the human jaw movement outside the oral cavity.

Jawbone movement is a very complex movement, and it does not proceed in one direction only, but the up-and-down movement between the maxilla and the mandible, as well as an anterior-posterior movement and a lateral movement occur at the same time. This movement of the maxilla is due to the anatomical characteristics of the joint connecting the maxilla and the mandible, and the reproducibility of the jaw movement varies depending on the degree to which the anatomical characteristics of the maxilla and the mandible are reflected. It can be divided into sexual articulators and fully adjustable articulators.

Although the non-adjustable articulator is still used today, it can only move up and down and is divided into a flat line articulator or an average tooth articulator. The non-adjustable articulator does not accurately reflect the anatomical characteristics of the human body, and is an articulator that can only move up and down.

On the other hand, the semi-adjustable articulator, also called the two-dimensional articulator, has superior reproducibility compared to the non-adjustable articulator because it can control the overwork inclination and guide angle with the incisors. This semi-adjustable articulator is widely used in clinical practice because its reproducibility is relatively good and the method of use is simpler than that of the fully adjustable articulator.

The fully adjustable articulator is designed to reproduce all the characteristics of limiting motion, including the flexion and direction of the condylar slope, and precisely reproduces the central axis of the mandibular motion, so it can reproduce the maxillary motion very accurately, but it is very expensive and very easy to use. There are complex problems.

As described above, the conventional mechanical articulator cannot accurately reproduce the jaw movement or is very complicated to use, so it is difficult to use it universally.

On the other hand, in Korean Patent Registration No. 10-1926041, the movable width of 4.4 mm in the mandible 6 position was increased by setting the depth of the ⊃ shape so that a space of 3 mm is formed inwardly in the locking part where the pivot shaft is mounted, but the maxilla The horizontal movement between the mandible and the mandible was not implemented, and there was a limitation in that it reproduces only a certain part of the Immediate Side Shift (ISS), which is defined as the distance where the non-working side condyle moves mesially and purely linearly above the center of the head.

Republic of Korea Patent Registration No. 10-1926041 (Announced on December 06, 2018)

The present invention is to solve the problems of the prior art described above, and an object of the present invention is to realize the left and right lateral movements and forward and backward movements between the maxilla and the mandible in a relatively inexpensive non-adjustable articulator or semi-adjustable articulator, so that the ISS It aims to reproduce the area.

One aspect of the present invention is a maxillary frame to which a maxillary dental model is coupled. A maxillary coupling part including a pivot bar coupled to one end of the maxillary frame so that the axial directions are perpendicular to each other, and a convex part formed along the outer circumferential surface of the central region of the pivot. ; and a mandible frame to which the mandibular tooth model is coupled, a central column erected at the end of the mandible frame, and a seating part formed at the top of the central column in a shape corresponding to the block part so that the convex part can be seated. It provides a dental articulator, characterized in that it includes, and the block portion and the seating portion is formed to be inclined.

Another aspect of the present invention is a maxillary frame including a maxillary frame to which the maxillary dental model is coupled, a pivot bar coupled to one end of the maxillary frame so that the axial directions are perpendicular to each other, and convex parts formed along the outer peripheral surfaces of both ends of the pivot bar. ; and a mandible frame to which the mandibular dental model is coupled, the first column and the second column erected at the end of the mandible frame, and the first column and the second column in a shape corresponding to the block part so that the convex part can be seated. a mandibular coupling portion including a seating portion formed at an upper end of each; It provides, characterized in that the block portion and the seating portion is formed to be inclined, an articulator for dental laboratories.

In an embodiment, the convex portion may be formed of inclined surfaces disposed on both sides so that a center thereof protrudes, and the seating portion may be formed of an inclined surface corresponding to the convex portion.

In one embodiment, the block portion, a flat surface; and inclined surfaces disposed on both sides of the flat surface so that the flat surface protrudes. It may be made of, and the seating portion may be characterized in that it is formed with a flat surface and an inclined surface corresponding to the convex portion.

In an embodiment, the inclined surface of the convex part may be characterized in that it forms 3 to 8°.

In an embodiment, the inclined surface of the convex part may be characterized in that it forms 3 to 8°.

In one embodiment, the mandibular coupling portion may be characterized in that it further comprises a pressing shaft for pressing the convex portion with elasticity.

According to one aspect of the present invention, the inclined surface of the convex part moves in the horizontal direction along the inclined surface of the seating part, so that the ISS region can be reproduced in the non-adjustable articulator or the semi-adjustable articulator.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view of an articulator for dental labs according to a first embodiment of the present invention.
FIG. 2 is an enlarged view of a cross-section taken along line I-I of FIG. 1 .
3 is a perspective view of an articulator for dental labor according to a second embodiment of the present invention.
FIG. 4 is an enlarged view of a cross section taken along line II-II of FIG. 3 .
5 is a view showing the movement of the mandibular No. 6 position according to the occlusal compass and the conventional articulator.
6 is a diagram illustrating a motion of the mandible 6th position according to the first embodiment.
7 is a view showing the movement of the mandible 6th position according to the second embodiment.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is "connected" with another part, this includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member interposed therebetween. . In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

1 is a perspective view of an articulator for dental labs according to a first embodiment of the present invention. FIG. 2 is an exploded cross-sectional view taken along line I-I of FIG. 1 . 3 is a perspective view of an articulator for dental labor according to a second embodiment of the present invention. 4 is an exploded cross-sectional view taken along line II-II of FIG. 3 .

Hereinafter, a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The maxillary frame 111 of the maxillary coupling part 110 is formed in an oval shape so that the maxillary dental model is coupled. A plurality of openings may be formed inside the oval circumference of the maxillary frame 111 as shown in FIG. 1 , but the present invention is not limited thereto, and any shape may be applied. The pivot bar 112 is coupled to the end of the maxillary frame 111 so as to be perpendicular to the long axis of the oval shape of the maxillary frame 111 . At both ends of the pivot bar 112, first and second support parts 113a of corresponding diameters are rotatably and detachably coupled to the ⊃-shaped first and second locking parts 123a and 123b of the mandibular coupling part 120 to be described later. 113b) is formed.

A convex portion 114 formed along an outer circumferential surface of the central region of the pivot bar 112 is provided in the central region of the pivot table 112 .

The mandible frame 121 of the mandibular coupling part 120 is formed in an oval shape so that the mandibular tooth model is coupled. A plurality of openings may be formed on the inner side of the oval circumference of the mandible frame 121 as shown in FIG. 1 , but the present invention is not limited thereto, and any shape may be applied. The central column 122 is erected at one end of the long axis of the oval shape of the mandible frame 121 . The central column 122 extends in the vertical direction, and a seating portion 124 having a shape corresponding to the convex portion 114 is formed so that the convex portion 114 is seated on the upper end of the central column 122 to be movable.

On the other hand, in the conventional articulator, the convex part is formed in a simple spherical contact surface and the seating part is configured in a shape corresponding to the convex part, so that horizontal movement between the maxilla and the mandible is not realized.

Accordingly, in the conventional articulator, there is a limit to reproduce only a certain portion of the ISS (Immediate Side Shift).

In order to overcome the conventional limitations, the convex portion 114 according to the first embodiment of the present invention includes an inclined surface I, and the seating portion 124 is characterized in that it has a shape corresponding thereto. In detail, as shown in FIG. 2 , the convex portion 114 has a flat surface H disposed in the center of the outer circumferential surface and an inclined surface disposed to be inclined on both sides of the flat surface H so that the flat surface H protrudes. It may consist of (I).

At this time, the flat surface H is disposed at the center of the convex portion 114. As shown, even if only a pair of the convex portion 114 and the seating portion 124 are provided, the upper frame 111 is the lower frame. (121) can be balanced.

Meanwhile, the shape of the convex part 114 is not limited thereto, and as will be described later, the shape of the convex part 114 may be formed of only the inclined surfaces I disposed on both sides so that the center of the convex part 114 protrudes.

As described above, the convex portion 114 of the present invention includes the inclined surface I, and the seating portion 124 has a shape corresponding to the convex portion 114 , and the horizontal force on the convex portion 114 . In the case of adding , the inclined surface I of the convex portion 114 may move in the horizontal direction along the inclined surface I of the seating portion 124 .

That is, the horizontal movement between the maxilla and the mandible can be implemented in the articulator for non-adjustable dental cavities or the articulator for semi-adjustable dental cavities, and thus the ISS region can be reproduced.

At this time, in order to realize a wider ISS region, the inclined surface I of the convex portion 114 is preferably formed to have an inclination of 3 to 8°, and more preferably to have an inclination of 4 to 7°. there is.

First and second locking parts 123a and 123b to which the first and second support parts 113a and 113b of both ends of the pivot bar 112 can be mounted are provided on both sides of the seating part 124 . . The first and second locking portions 123a and 123b have a ⊃-shaped groove, and the diameter of the groove corresponds to the diameter of the first and second support portions 113a and 113b.

A pressing shaft coupling hole 125 is formed on the rear upper side of the seating part 124 . The pressing shaft 126 has a head 127 formed in a hemispherical shape. The rounded head 127 comes into contact with the convex portion 114 of the pivot bar 112 so that the pivot bar 112 can easily move with the contact point of the pressing shaft 126 as an axis. The pressing shaft 126 has a spring 128 placed thereon and is coupled to the pressing shaft coupling hole 125 to have elasticity, and the head 127 of the pressing shaft 126 presses the convex part 114 to the contact point of the head 127 . It allows the pivot bar 112 to tilt around the .

Since the dental articulator 100 configured as described above has elasticity and is pressed by the pressing shaft 126, a pivoting rod ( 112) can be tilted forward and backward to adjust the occlusion, and the occlusion can be adjusted by tilting the pivot bar 112 with the contact point between the first support part 113a and the first locking part 123a as a central axis, and the second The occlusion can be adjusted by tilting the pivot bar 112 with the contact point between the support part 113b and the second locking part 123b as the central axis, and the seating part 124 and the convex part 114 of the central column 122 . It is possible to horizontally move the pivot bar 112 by using as a contact point.

Hereinafter, a second embodiment of the present invention will be described in detail. It is different from the first embodiment described above in that there are a plurality of columns and that the convex part and the seating part are formed at both ends of the articulator instead of the center. A detailed description of the above-described configuration will be omitted.

First, at both ends of the pivot bar 212 , first and second convex parts 213a of corresponding diameters are rotatably and detachably coupled to the ⊃-shaped first and second seating parts 224a and 224b of the mandible coupling part 220 . , 213b) is formed.

The mandible frame 221 is provided with a connecting portion 222 coupled to the end of the lower frame 221 so as to be perpendicular to the long axis of the oval, and at both ends of the connecting portion 222, a first column 223a and a second column ( 223b) is established. The height of the first column 223a and the second column 223b is set so that the upper coupling part 210 is spaced apart and coupled to the lower coupling part 220 . A ⊃-shaped first seating part 224a and a second seating part 224b are formed at upper ends of the first column 223a and the second column 223b.

At this time, the first and second convex portions 213a and 213b are formed of inclined surfaces I disposed on both sides so that their centers protrude. In detail, even if the first and second convex portions 213a and 213b and the first and second seating portions 224a and 224b are made of only the inclined surface I, the first at both ends of the articulator 200 for dental work , 2 convex portions 213a and 213b and the first and second seating portions 224a and 224b are disposed, so that the upper frame 211 may maintain a balance with respect to the lower frame 221 .

On the other hand, the shapes of the first and second convex portions 213a and 213b are not limited thereto, and as described above, the flat surface H disposed at the center of the outer circumferential surface and the flat surface H so that the flat surface H protrudes. It may be made of an inclined surface (I) disposed to be inclined on both sides of the.

That is, the inclined surfaces I of the first and second convex portions 213a and 213b may move in the horizontal direction along the inclined surfaces I of the first and second seating portions 224a and 224b, and accordingly, non-adjustable It is possible to reproduce the ISS area in the articulator or semi-adjustable articulator.

At this time, in order to realize a wider ISS region, the inclined surfaces I of the first and second convex portions 213a and 213b are preferably formed to have an inclination of 3 to 8°, and more preferably 4 to 7 It can have a slope of °.

Hereinafter, with reference to FIGS. 5 to 7, the movable range of the articulator according to the embodiment of the present invention in the lateral and front and rear directions and the movable range of the conventional articulator will be described in detail.

Figure 5a shows the occlusal compass in which the movement coordinates of the teeth are displayed on a horizontal plane. Specifically, based on the position of the cusp, P (Protrusion) means forward movement, PM (Protoconus-Mediotursion) means balancing movement, which is medial movement of the balancing condyle during lateral movement, and PL (Paraconus-Lateroprotursion). ) means lateral-anterior motion, and ML (Metaconus-Laterotrusion) means working-side motion, which is the lateral movement of the working-side condyle during lateral motion.

In addition, ISS (Immediate Side Shift) is a lateral movement phenomenon that occurs when the entire mandible is tilted to the side, and PSS (Progressive Side Shift) is a relatively straight condyle in the anterior and medial direction while the movable condyle rotates after the ISS is finished. refers to the path of movement.

Figure 5b shows the motion of the conventional articulator. Specifically, i and ii indicate the contact point between the pivot bar and the column of the mandibular coupling part. If both contact points of the pivot are adjusted only by tilting the axis, there is a problem in that the movement of the anterior part is unreasonable and ISS and PSS are impossible.

Specifically, in the conventional articulator, PM motion based on the i contact point, the ML motion based on the ii contact point, and the forward motion based on the head of the press shaft were possible for the mandibular position 6 in the articulator.

That is, in the conventional articulator, horizontal movement of the maxillary coupling part with respect to the mandibular coupling part was impossible, and there was a problem that the ISS area could not be reproduced.

6 is a view showing the movement of the mandible 6th position according to the first embodiment of the present invention. In detail, contact i is a contact point between the first support part 113a and the first locking part 123a, and contact ii represents a contact point between the second support part 113b and the second locking part 123b. A convex portion 114 and a seating portion 124 formed of a flat surface (H) and an inclined surface (I) of 3 to 8° are provided between the i contact and the ii contact. Accordingly, the convex portion 114 can move in the horizontal direction to form an inclination of about 3 to 8° with respect to the seating portion 124, and the movable width of about 3 to 8° is increased in the mandibular 6th position, so that As shown, the ISS area can be reproduced.

7 is a view showing the movement of the mandible 6th position according to the second embodiment of the present invention. In detail, contact i is a contact point between the first convex part 213a and the first seating part 224a, and contact ii represents a contact point between the second convex part 213b and the second seating part 224b. The first and second convex portions and the first and second seating portions are formed with an inclined surface I of 3 to 8°.

Accordingly, the first and second convex portions 213a and 213b can move in the horizontal direction at an inclination of 3 to 8° with respect to the first and second seating portions 224a and 224b, and therefore, approximately at the 6th position of the mandible. The movable width of 3~8° has been increased to reproduce the ISS area as indicated by the hatched line.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

100 Dental Technician Articulator
110 maxillary joint
111 maxillary frame
112 pivot
113a first support
113b second support
114 convex
120 mandibular joint
121 mandibular frame
122 central column
123a first locking part
123b second locking part
124 Seating part
125 press shaft coupling hole
126 push shaft
127 heads
128 spring
200 Dental Technician Articulator
210 maxillary joint
211 maxillary frame
212 pivot
213a first convex portion
213b second convex portion
220 mandibular joint
221 mandibular frame
222 connection
223a first column
223b second column
224a first seating part
224b second seating part
225 press shaft coupling hole
226 push shaft
227 heads
228 spring
H horizontal plane
I slope

Claims (7)

a maxillary frame to which the maxillary dental model is coupled; and
A mandibular coupling part comprising a mandibular frame to which the mandibular dental model is coupled, a central column erected at the end of the mandible frame, and a seating part formed at the top of the central column in a shape corresponding to the block part so that the convex part can be seated; including,
The block part and the seating part are formed to be inclined, the articulator for dental work. a maxillary coupling part including an maxillary frame to which the maxillary dental model is coupled, a pivot coupled to one end of the maxillary frame so that the axial directions are perpendicular to each other, and convex parts formed along the outer peripheral surfaces of both ends of the pivot; and
The mandibular frame to which the mandibular dental model is coupled, the first column and the second column erected at the end of the mandible frame, and the first column and the second column in a shape corresponding to the block part so that the convex part can be seated. a mandibular coupling portion including a seating portion formed at an upper end, respectively; including,
The block part and the seating part are formed to be inclined, the articulator for dental work. 3. The method according to claim 1 or 2,
The convex portion is made of inclined surfaces disposed on both sides so that the center thereof protrudes, and the seating portion is formed as an inclined surface corresponding to the convex portion, the dental articulator. 3. The method according to claim 1 or 2,
The block part,
flat surface; and
inclined surfaces disposed on both sides of the flat surface to protrude the flat surface; made of, and wherein the seating portion is formed of a flat surface and an inclined surface corresponding to the convex portion, an articulator for dental laboratories. 4. The method of claim 3,
The inclined surface of the convex part is characterized in that to form 3 ~ 8 °, dental articulator for a pore. 5. The method of claim 4,
The inclined surface of the convex part is characterized in that to form 3 ~ 8 °, dental articulator for a pore. 3. The method according to claim 1 or 2,
The mandibular coupling unit, dental articulator, characterized in that it further comprises a pressing shaft for pressing the convex portion with elasticity.

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