KR100671761B1 - Orthodontic supporting structure - Google Patents

Abstract

PURPOSE: To provide a dentition orthodontic support having good handleability to solve a problem of a difficult treating operation due to a dentition orthodontic treatment to be conducted in a narrow space of a mouth. CONSTITUTION: The dentition orthodontic support comprises an implanting member 21 embedded in a jaw, and a coupling member 22 having an arm 14 with a connecting part 15. The member 21 has a necked part 28 at its head 17. The member 22 has an engaging part 26 including an open part 16a at one side, and the part 26 can be engaged with the part 28. In this case, the part 26 is slid along the part 28 of the member 21, and fixed by caulking its tip part 26b. Thus, its mounting method is simple.

Description

Orthodontic Support Structures {ORTHODONTIC SUPPORTING STRUCTURE}

1A is a perspective view of a connecting unit of an orthodontic support structure according to a first embodiment of the present invention;

1B is a perspective view of an implant unit of a support according to the first embodiment;

2A and 2B are diagrams illustrating how the connecting unit of the first embodiment is mounted to the transplant unit;

Figure 3a is a perspective view showing a connecting unit of the orthodontic support structure according to the second embodiment of the present invention;

3B is a perspective view of the implant unit of the support according to the second embodiment;

4 is a front view illustrating a method of mounting the connecting unit of the second embodiment to the transplant unit;

Fig. 5A is a top view of the orthodontic support structure according to the third embodiment of the present invention;

5B is a side view of the orthodontic support structure according to the third embodiment;

6A is a top view of the connecting unit of the orthodontic support structure according to the fourth embodiment of the present invention;

6B is a top view of the implant unit according to the fourth embodiment;

6C is a side view of the implant unit according to the fourth embodiment;                 

7A is a top view of the connecting unit of the orthodontic support structure according to the fifth embodiment of the present invention;

7B is a top view of the implant unit according to the fifth embodiment;

7C is a side view of the implant unit according to the fifth embodiment;

8A is a top view of the orthodontic support structure according to the sixth embodiment of the present invention;

FIG. 8B is a cross-sectional view of the orthodontic support structure according to the sixth embodiment taken along line 8B-8B in FIG. 8A;

9 is a top view of the connecting unit of the orthodontic support structure according to the seventh embodiment of the present invention;

10 is a top view of a connection unit of the orthodontic support structure according to the eighth embodiment of the present invention;

11 is a diagram illustrating a first treatment embodiment using the orthodontic support structure of the present invention;

12 is a diagram illustrating a second treatment embodiment using the orthodontic support structure of the present invention;

Figure 13 is a diagram illustrating a third treatment embodiment using the orthodontic support structure of the present invention;

14 is a diagram illustrating a fourth treatment embodiment using two orthodontic support structures of the present invention;

Figure 15 is a diagram illustrating a fifth treatment embodiment using the orthodontic support structure of the present invention; And

Figure 16 is a horizontal cross sectional view of a head of an implant unit of an orthodontic support structure in accordance with another embodiment of the present invention;

The present invention relates to irregular orthodontic supports that provide support points for repositioning or moving teeth that are inappropriately positioned in orthodontic treatment.

Orthodontic treatments for correcting tooth irregularities such as dense teeth, inverse bite or inclination of the incisors toward the lips are becoming popular.

One of the most popular methods of orthodontic treatment is that the teeth are adjusted to take the proper position and orientation so that they are achieved throughout the orthodontic teeth, for example, by passing the arch wire through the brackets to the surface of the individual teeth with an adhesive. Securing the bracket, and using the restoring force caused by the elasticity of the arch wire to apply an external force (hereinafter referred to as orthodontic force) to the tooth, thereby causing the individual teeth to move relatively. Steps. This method is hereinafter referred to as relative mobile orthodontic treatment.

In these relative orthodontic treatments, the molars, especially the first molars, are large and difficult to move and are used as anchors in most cases. However, it is an exaggeration to say that the molar does not move at all. In fact, the molar placed in the correct position as a result of orthodontic treatment is in some cases altered. On the contrary, the molar may move positively to the desired position. In this case, orthodontic treatment requires an extended period of time for severe orthodontic treatment of the patient, including complex movements and techniques for orthodontic treatment.

Another method of relative mobility orthodontic treatment is to use external oral fixation, eg, using the patient's head as a fixation source. However, the wearing of the external oral fixation device greatly affects the daily life of the patient, and the external oral fixation device gives severe mental pain and stress to the patient.

In addition, the relative movement orthodontic treatment method is not suitable for the positioning of one tooth.

In order to overcome the above problems, US Patent 5,921,774 (Japanese Patent Laid-Open No. 10-99347) proposes orthodontic treatment using orthodontic support structure.

The orthodontic support structure includes an implant (grafting unit) for implanting in a desired area in the jawbone and an exposed portion (connection unit) for attachment to the implant head. The implant is measured with a diameter of up to 2 mm in its horizontal cross section and the exposed portion includes an arm with hooks (tightening portions) extending into the oral cavity.

In a support implanted in the jawbone, one end of the resin chain or metal coil spring, etc. is joined to the clamping part of the support and the other end is joined to the bracket or lingual button, for example, the support is a corrective force such as pressing or pulling force on the tooth. It is fixed to the teeth in order to apply.

The orthodontic support structure's arm is positioned away from the implantation site in the jaw bone, providing a support point for orthodontic force, so that even when the support is implanted in a position that does not damage nerves or tooth roots, You can install a pregnant woman.

The disclosed orthodontic support structure is capable of applying orthodontic force directly to each individual tooth, which is suitable for correcting the position of one tooth. Moreover, the orthodontic support structure can apply orthodontic forces from the support points most suitable for the teeth to correct without adversely affecting the precisely positioned teeth. Thus, the support can correct improperly positioned teeth without the need for complicated orthodontic treatment, thereby reducing the time required for treatment.

Orthodontic support structure of the present invention includes a transplant unit to be implanted in the desired area in the jawbone and a connecting unit attached to the upper portion of the implant unit, the connecting unit is on the longitudinal axis of the arm and the transplant unit having a tightening portion extending to the oral cavity And an engaging portion having an opening at one end, the connecting unit being detachably mounted to the implantation unit in an intersecting direction.

These and other objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Orthodontic treatment provides limited treatment space and is performed in the oral cavity requiring the use of a treatment device such as an extremely small orthodontic support structure (e.g., the implant unit of the orthodontic support structure measures 1.2 mm in diameter in the horizontal cross section). do. Therefore, this treatment is difficult to perform and requires a orthodontist with a high level of treatment skills. For this reason, there is a need for a treatment device that can be used more easily.

It is therefore an object of the present invention to provide an orthodontic support structure that is more easily handled and manipulated.

Orthodontic support structure of the present invention includes a transplant unit implanted into the desired site in the jawbone and a connecting unit attached to the upper portion of the transplant unit, the connecting unit crosses the longitudinal axis of the female and the transplant unit having a tightening portion extending into the oral cavity. And an engaging portion having an opening at one end, the connecting unit being detachably mounted to the implantation unit in a direction to which the connecting unit is mounted.

If the orthodontic support structure is a type of implant and connection unit secured by a screw, then the screw will inevitably be an extremely small screw that is quite difficult to handle in the narrow space of the oral cavity. If the screwdriver used for the rotation of the screw is directed towards the cheek, for example, it is very difficult to rotate the screw.

On the contrary, in the present invention, the connection unit is easily attached to the implantation unit by sliding the connection unit in the horizontal direction toward the top of the implantation unit. This is because, as described above, the orthodontic support structure of the present invention is assembled such that the connecting unit is mounted on the implant unit in a direction crossing the longitudinal axis of the implant unit.

In the present invention, the horizontal direction (or the direction crossing the longitudinal axis of the implant unit) is preferably a direction substantially perpendicular to the longitudinal axis of the transplant unit.

Since it is common for the implant unit to be implanted approximately perpendicular to the gingival surface, the direction approximately perpendicular to the longitudinal axis of the implant unit is nearly parallel to the gingival surface. Therefore, if the connecting unit slides almost parallel to the gingival surface, obstruction of the cheeks or lips can be avoided.

Preferably, the orthodontic support structure of the present invention may be configured to have a U-shaped inner surface structure in which the implant unit has a narrow portion at the top and the engaging portion of the connection unit is mounted on the narrow portion of the implant unit.

In this configuration, the narrow portion of the implant unit is mounted in the opening of the U-shaped inner surface structure of the engaging portion when the connecting unit and the implant unit are engaged. In addition, this configuration prevents the connecting unit from being separated from the upper side of the implantation unit because the head of the implantation unit is thicker than the narrow portion. Here, it should be noted that the direction in which the implant unit is implanted is considered to be downward and the reverse direction is considered to be upward.

In another preferred form of the invention, a locking mechanism is provided at the point of contact between the implant unit and the link unit to prevent the link unit from rotating around the implant unit.

When the connecting unit is connected to the transplant unit, the extending direction of the arm is fixed because of the locking mechanism, since the extending direction of the arm prevents the connecting unit from rotating around the implant unit. Therefore, the tightening portion can be held in the desired position.

In another preferred form of the invention, the arm and the shorter engaging portion of the connecting unit are connected by an intermediate portion to form a continuous J-shaped structure, the intermediate portion having a flat area on at least a portion of its inner surface. . The head of the implant unit directly above the narrow part has a generally circular or oval cross section whose cross section or side of the polygon is cut to form a plane, and the flat area on the inner surface of the intermediate part is the head when the connecting unit and the implant unit are fitted. In contact with the plane.
The locking mechanism described above is formed on the inner surface of the intermediate portion of the connecting unit and on a flat area on the plane of the head of the implanting unit.

In this configuration, when the connecting unit is joined to the implantation unit, the flat area on the inner surface of the intermediate part of the connecting unit is in contact with the plane of the head (any one side of the head if the head has a polygonal shape). The unit is restrained from rotating around the implant unit.

In another preferred aspect of the present invention, the narrow portion of the transplant unit has a polygonal cross section, an elliptical cross section or a substantially circular cross section in which a side is cut to form a plane, and the engaging portion of the connection unit is such that the engaging portion is mounted to the narrow portion, It has a polygonal inner surface structure, an elliptical inner surface structure or an approximately circular inner surface structure cut off to form a plane. In other words, both the narrow portion and the engaging portion have a polygonal surface structure, an elliptical surface structure or an approximately circular surface structure in which side surfaces are cut to form a plane, and in the preferred embodiment of the present invention, the engaging portion is mounted to the narrow portion. The locking mechanism is formed in the cross-sectional shape of the narrow portion and the inner surface structure of the engagement portion. The engagement structure with the inner surface structure of the course has an opening at one end.

In this configuration, since the narrow portion of the transplant unit is suitably mounted on the engaging portion, the connecting unit is firmly fixed to the implant unit, so that the connecting unit rotates in a certain manner.

Preferably, at least the engagement portion of the connection unit is made of plastic deformation material and fixed to the narrow portion of the implantation unit by crimping of the engagement portion. Typical examples of such plastic deformation materials are stainless steel, titanium, titanium alloys or metals such as cobalt and titanium alloys.

The connecting unit is fixed to the implant unit by crimping the engagement portion.

If the engagement portion is not crimped, when the coupling unit is mounted to the implantation unit, a force is applied to the connection unit in the opposite direction to the direction in which the connection unit slides so that the connection unit will leave the implantation unit. When the engagement portion is crimped, the connecting unit is not released even when the force is applied. However, even when the engagement portion is not crimped, when the coupling unit is mounted to the implantation unit, the coupling unit does not deviate if a force is applied in a direction within a range of about 90 ° on both sides (total 180 ° sector area) in which the coupling unit slides. . If the engagement portion is not crimped, the connecting unit is easily removed from the implant unit. This makes it easier to replace wires or the like attached to the fasteners during orthodontic treatment or to change the traction direction applied to the middle of the teeth.

In another preferred aspect of the present invention, at least the engaging portion of the connecting unit is made of plastic deformation material and the width of the opening in the engaging portion is smaller than the maximum thickness of the portion of the implanted unit in which the engaging portion is fitted.

If the opening in the engagement portion is slightly smaller than the implant unit portion (e.g., the narrow portion described above) to which the engagement portion is fitted, the edge of the opening in the engagement portion contacts the implant unit portion when the connecting unit slides in the horizontal direction to generate resistance. Let's do it. Further, when the connecting unit is forcibly pressed in the horizontal direction, the plastically deformed engagement portion is easily deformed so that the connecting unit can slide to a suitable position. In this respect, the engagement portion is restored to the original shape of the engagement portion and the implantation unit and the connection unit are joined. In this configuration, the engagement portion does not easily escape even when a force is applied to the connection unit in the direction opposite the direction in which the connection unit slides.

Since the orthodontic force applied to the teeth is usually 100 to 300 g (980 to 2940 mN) and a maximum of 1 kg, the engagement portion is preferably made of a material that can withstand the orthodontic force applied in the opposite direction to the direction in which the connecting unit slides. Typical examples of such plastic deformation materials are stainless steel, titanium, titanium alloys, or metals such as cobalt and titanium alloys.

If desired to remove the connecting unit from the implant unit, pull the connecting unit in the reverse direction of the direction in which the connecting unit slides. The pulling force deforms the engagement portion to disengage the implant unit from the engagement portion. The pulling force is enough to deform the engagement portion by overwhelming the corrective force.

In this preferred form of orthodontic support structure the connecting unit is easily attached to and removed from the implant unit. This makes it easier to replace the wires attached to the fasteners during the orthodontic treatment or to change the traction direction applied to the middle of the teeth by removing the fasteners at once.

In another preferred form of the invention, the projection is formed in the inner surface of the engaging portion of the connecting unit and the recess for mounting the projection is formed on the implant unit. In this configuration, the projection on the engagement portion is mounted to the recess in the narrow portion when the connecting unit and the implantation unit are joined. As a result, the connecting unit and the transplant unit are more firmly fixed, so that the connecting unit is not easily detached from the transplant unit.

In another preferred form of the invention, the arm of the connecting unit is made of plastically deformable material.

Since the arm can be bent or curved at a desired angle in a preferred form, the curvature of the arm can be adjusted to position the fastener in the desired position even after the connection unit is firmly attached to the implant unit. According to the invention, the orthodontic support structure is assembled such that the arm can be bent in the horizontal or vertical direction (parallel to the longitudinal axis of the transplant unit).

Since the corrective force applied to the tooth is 1 Kg at the maximum as described above, the engaging portion is preferably made of a material that can withstand the corrective force even after plastic deformation.

Moreover, it is preferable that the buried portion of the implant unit is threaded outward without being larger than 2 mm in diameter.

First embodiment

Figures 1a and 1b illustrate the orthodontic support structure according to the first embodiment of the present invention, Figure 1a is a perspective view showing a connection unit 12 of the support 10, Figure 1b of the support 10 It is a perspective view which shows the transplant unit 11. FIG. 2A and 2B are diagrams illustrating how the connecting unit 12 is fixed to the transplant unit 11, and FIG. 2A is a perspective view showing a position where the connecting unit 12 is fixed to the transplant unit 11, and FIG. 2b is a perspective view showing a state in which their assembly is completed.

The implant unit 11 includes an upper portion 17 exposed to the oral cavity and a buried portion 13 embedded in the jawbone, and the narrow portion 18 is formed on the upper portion 17. In the top view, the head 19 of the upper portion 17 of the narrow portion 18 is formed in a regular octagon.

The connecting unit 12 includes an annular fastener 15 provided at the far end of the arm 14 and an arm 14 extending into the oral cavity. The connecting unit 12 further includes an engaging portion 16 having a U-shaped inner surface structure of a size suitable for mounting on the narrow portion 18 of the upper portion 17. Arm 14 and engaging portion 16 connected by intermediate portion 92 having a flat inner surface together form a continuous J-shaped structure. The connection unit 12 is made of stainless steel, titanium, titanium alloy, or plastic deformation material such as cobalt and titanium alloy.

In order to attach the connecting unit 12 to the transplanting unit 11, the opening 16a in the engaging portion 16 is aligned with the narrow portion 18 of the transplanting unit 11 and the connecting unit 12 is a transplanting unit ( One side of the head 19 of 11) is pressed in the direction of arrow A shown in Fig. 2A until it contacts the flat inner surface of the intermediate portion 92. The far end 16b of the engagement portion 16 is then crimped as shown in FIG. 2B to complete the assembly of the implant unit 11 and the connection unit 12.

Since the flat inner surface of the intermediate portion 92 and one flat side of the head 19 are in intimate contact, the connecting unit 12 restrains the rotation around the implant unit 11. Moreover, since the far end 16b of the engaging portion 16 is crimped, the connecting unit 12 is not easily detached even when a force is applied to the connecting unit 12 in the opposite direction of the arrow A direction. Moreover, the connecting unit 12 is prevented from escaping upward because the position is fixed by the head 19 which is thicker than the narrow portion 18 or extends more horizontally than the narrow portion.

As described above, the orthodontic support structure 10 can be assembled by a simple operation, which means that the connecting unit 12 slides in the horizontal direction indicated by the arrow A and then the connecting unit to the implant unit 11. Crimping (or mechanically bending) the far end 16b of the engagement portion 16 to secure (12). This assembly operation can be easily performed even in a limited space such as the oral cavity so that the orthodontic support structure 10 of the present embodiment can provide ease of handling. In addition, the connection unit 12 is firmly fixed to the transplant unit (11).

The manipulation process for performing orthodontic treatment using the orthodontic support structure 10 is as follows.

First, the orthodontist implants the implant unit 11 in a desired area in the jawbone and waits until the buried portion 13 of the implant unit 11 is firmly fixed in the jawbone. Then, the connection unit 12 is fixed to the implantation unit by the above method. When the connecting unit 12 is mounted to the transplant unit 11, the extending direction of the arm 14 is changed in a step of 45 ° with respect to the center of the implant unit, which means that the head 19 of the implant unit 11 is This is because it has a square octagonal cross section.

One end of the rubber ring, resin chain, metal coil spring, etc. is then hooked to the tightening portion 15 and the other end is connected to a bracket or lingual button fixed to the tooth, for example in order to apply corrective force to the tooth.

If it is desired to change the direction of traction applied to the teeth during the treatment, it is necessary to return the crimped far end 16b of the engagement portion 16 to its original state, separating the connecting unit 12 from the implant unit 11 and Attach the connection unit back to the implant unit in the appropriate position. According to this embodiment, the traction direction can be adjusted by placing the connecting unit 12 which actually leaves the transplant unit 11 in a new position. This method of orthodontic treatment is preferred in that the adjustment of the orthodontic support structure 10 is possible whenever adjustment is necessary without causing surgical damage to the jawbone.

Second embodiment

Figures 3a-3b and 4 illustrate an orthodontic support structure according to a second embodiment of the present invention, Figure 3a is a perspective view showing a connecting unit of the support 20, Figure 3b is a transplant of the support 20 4 is a perspective view showing the unit 21, and FIG. 4 is a top view showing a method of mounting the connecting unit 22 to the implant unit 21. As shown in FIG.

In the present embodiment, the narrow portion 28 of the transplant unit 21 is formed in a regular octagon in the top view as the head 29 of the upper portion 17 of the implant unit 21.

The engaging portion 26 of the connecting unit 22 has an opening 16a at one end.
The opening 16a has a substantially six-sided inner surface structure with four sides and openings at one end, such that the inner shape of the opening 16a is suitable for mounting to the narrow portion 28 of the implant unit 21. . When the connecting unit 22 is mounted to the implanting unit 21, the connecting unit 22 is connected to the head 29 of the implanting unit 21 such that the inner surface of the side flap 24 contacts the side surface of the head 29. ) Has a pair of side flaps 24 extending downwards from both sides of the top plate portion 23 in contact with. The arm 14 and the engaging portion 26 of the connecting unit 22 connected by the intermediate portion 25 together form a continuous J-shaped structure. The connecting unit 22 is made of plastic deformation material, such as stainless steel or titanium. In Figs. 3A, 3B and 4, elements similar or identical to those shown in Figs. 1A-1B and 2 are denoted by the same reference numerals and descriptions of the elements are omitted.

To assemble the orthodontic support structure 20, the opening 16a in the engaging portion 26 of the connecting unit 22 is aligned with the narrow portion 28 of the implant unit 21 and the connecting unit 22 is The engagement portion 26 is stretched until it is mounted on the narrow portion 28. In this respect, the two side flaps 24 of the connecting unit 22 are mounted on two sides of the head 29. The narrow portion 28 has the same hexagonal cross section as the head 29, and the engaging portion 26 of the connecting unit 22 is configured in a shape corresponding to the present embodiment, and the extending direction of the arm 14 is the transplant unit. When the connecting unit 22 is mounted on the 21, it is adjusted in 60 ° steps. The far end 26b of the engagement portion 26 is then crimped to complete the assembly as shown in FIG.

As described above, since the engaging portion 26 is mounted on the narrow portion 28 of the implantation unit 21 and the side flaps 24 are mounted on the head 29, the connecting unit 22 is the implantation unit 21. Restrain rotation around). Moreover, since the far end 26b of the engaging portion 26 is crimped, the connecting unit 22 does not easily leave the implant unit 21. Moreover, the connection unit 22 is fixed because the position is fixed by the head 29 which is thicker than the narrow portion 28 or extends more horizontally than the narrow portion so that the connecting unit 22 is firmly fixed to the transplant unit 21. The unit 12 is prevented from escaping upward.

Third embodiment

Figures 5a-5b is a diagram showing a orthodontic support structure according to a third embodiment of the present invention, Figure 5a is a top view and Figure 5b is a side view. In Figs. 5A-5B, similar or identical elements shown in Figs. 1A-1B and 2 are denoted by the same reference numerals and descriptions of the elements are omitted.

In this embodiment, the buried portion 33 of the implant unit is threaded outward. The middle part of the head 39 of the implant unit 31 has a hexagonal cross section in the top and bottom and top view of the head 39 tapering from the middle part as illustrated. The narrow portion 38 of the implant unit 31 has a circular cross section in the top view. The engaging portion 16 of the connecting unit 12 has an opening 16a at one end, and the opening 16a has a semi-circular inner surface structure mounted to the narrow portion 38 of the implant unit 31.

The orthodontic support structure 30 of the third embodiment allows the orthodontist to easily implant the implant unit by screwing the orthodontic support structure 30 into the jawbone. Since the middle portion of the head 39 has a hexagonal cross section, a wrench can be used when transplanting the transplant unit 31 to facilitate the transplant operation.

Furthermore, since the head 39 of the implant unit 31 is tapered down, the engaging portion 16 of the connecting unit 12 can be smoothly mounted on the narrow portion 38 of the implant unit 31.

As in the first embodiment, in this embodiment, since the intermediate portion 92 of the connecting unit 12 and the flat side surfaces of the head 39 are in intimate contact with each other, the connecting unit 12 rotates around the implant unit 31. Restraining to do

In FIGS. 5A-5B, although the far end 16b of the engagement portion 16 is not crimped, the far end 16b is crimped to more securely connect the connection unit 12 to the implant unit 31.

Moreover, this embodiment makes it easier to pass the resin chain through the holes in the tightening portion of the arm 14, for example, as the holes are countersunk as shown in Fig. 5B.

Fourth embodiment

6A-6C are diagrams illustrating a orthodontic support structure 40 according to a fourth embodiment of the present invention. FIG. 6A is a top view of the connecting unit 42 of the support 40. FIG. 6B is a support 40. ) Is a top view of the implant unit 31, Figure 6c is a side view of the implant unit (31). In Figs. 6A-6C, elements similar or identical to those shown in Figs. 1A-1B, 2 and 5A-5B are denoted by the same reference numerals and descriptions of the elements are omitted.

In the present embodiment, the implant unit 31 has a head 39 having a hexagonal cross section in the top view as well as a narrow portion 38 having a circular cross section in the top view. The engaging portion 46 and the arm 14 of the connecting unit 42 connected by the intermediate portion 92 together form a continuous J-shaped structure. The intermediate portion 92 has a flat inner surface in contact with one side of the head 39.

Engaging portion 46 forms a C-shaped circular arc mounted to the narrow portion of the implant unit (31). The width B of the deadlock portion of the opening portion 46a in the engaging portion 46 is made smaller than the diameter C of the narrow portion 38. The deadlock portion of the opening 46a is formed by the projections 46c from both sides of the engaging portion 46. The two distant ends 46b of the engaging portion 46 extending further than the deadlock are unfolded as shown in Fig. 6A.

The connection unit 42 is made of plastic deformation material such as stainless steel, titanium or titanium alloy.

In order to attach the connection unit 42 to the implantation unit 31, the engaging portion 46 of the connection unit 42 is aligned with the narrow portion 38 of the implantation unit 31 and the connection unit 42 is indicated by an arrow. Slide in the direction of A. Since the far end 46b of the engagement portion 46 is unfolded, the narrow portion 38 is guided smoothly into the engagement portion 46 until the narrow portion 38 contacts the protrusion 46c. Further, when the connecting unit 42 is forcibly pressed in the direction of the arrow A, the engaging portion 46 is deformed, or spread out, so that the narrowing portion 38 passes between the projections 46c to engage the engaging portion 46. Is fully fitted in. Since the engagement portion 46 restores the original shape at this point, it restrains that the narrow portion 38 of the implantation unit is separated from the engagement portion 46.

Moreover, in this embodiment, one side of the head 39 is fixed in intimate contact with the inner surface of the intermediate portion 92, thereby preventing the connecting unit 42 from rotating around the implant unit 31. .

The connection unit 42 is firmly fixed to the implant unit 31 in this manner.

Fifth Embodiment

7A-7C are diagrams illustrating a orthodontic support structure according to a fifth embodiment of the present invention, FIG. 7A is a top view of the connecting unit 52 of the support 50, and FIG. 7B is a transplant of the support 50. FIG. 7C is a side view of the implant unit 51. FIG. In Figs. 7A-7C, elements similar or identical to those shown in Figs. 1A-1B, 2, 5A-5B and 6A-6B are denoted by the same reference numerals and descriptions of the elements are omitted.

In the present embodiment, the head 59 of the implant unit 51 has a circular cross section in the top view while the narrow portion 58 of the implant unit 51 has a hexagonal cross section in the top view. As shown in Fig. 7B, the cross groove 59a (intersecting slot) is formed in the upper surface of the head 59.

The engaging portion 56 of the connecting unit 52 has an opening 56a at one end. The opening 56a is generally a substantially hexagonal inner surface structure having four sides and openings at one end, such that the inner shape of the opening 56a is suitable for mounting to the narrow portion 58 of the implant unit 51. Has

In order to attach the connection unit 52 to the implantation unit 51, the narrow portion 58 of the implantation unit 51 slides into the opening 56a in the engaging portion 56 as in the above-described embodiments. The unit 52 slides in the horizontal direction. After attaching the engaging portion 56 to the narrow portion 58 of the implant unit 51 in this manner, the far end 56b of the engaging portion 56 is crimped to fix the connecting unit 52 in the proper position. do.

Furthermore, in this embodiment, since the cross-shaped groove 59a is formed on the upper surface of the head 59, the orthodontist can implant the implant unit 51 into the jaw bone by, for example, screwing the implant unit with a screwdriver.

Sixth embodiment

8A-8B are diagrams illustrating a orthodontic support structure 60 according to a sixth embodiment of the present invention. FIG. 8A is a top view and FIG. 8B is a cross-sectional view taken along the line 8A-8B of FIG. 8A. In Figs. 8A-8B, elements similar or identical to those shown in Figs. 1A-1B, 2, 5A-5B, and 7A-7B are denoted by the same reference numerals and descriptions of the elements are omitted.

The connecting unit 62 of the support 60 of this embodiment has two arms 63 and 64 each having an annular fastening portion 15 at the far end.

As in the fifth embodiment, the engaging portion 56 of the connecting unit 62 has an approximately six-sided inner surface structure opening at one end thereof so that the engaging portion 56 is mounted to the narrow portion 58. The narrow portion 58 has a hexagonal cross section in a top view.

In order to attach the connecting unit 62 to the implantation unit 61, the engaging portion 56 is mounted to the narrow portion 58 and the far end 56b of the engaging portion 56 is connected to an appropriate position as in the above embodiment. Crimped to secure unit 62.

This embodiment may provide one support 60 with two support points for moving the improperly positioned teeth. As shown in FIG. 8A, the two arms 63, 64 of the support 60 do not necessarily have to be arranged in a straight line 180 ° but can be arranged in various ways.

Seventh embodiment

9 is a top view of the connecting unit 72 of the orthodontic support structure 70 according to the seventh embodiment of the present invention.

The connecting unit 72 of this embodiment has four arms 73, 74, 75, 76 having annular fasteners 15 at their far ends, respectively. According to the invention, the connecting unit has three or more arms as such.

In the orthodontic support structure having a plurality of tightening portions, as in the sixth and seventh embodiments, orthodontic force can be applied to the teeth from a plurality of support points (tightening portions 15) by implanting one support.

Eighth Embodiment

10 is a top view of the connecting unit 12 of the orthodontic support structure 80 according to the eighth embodiment of the present invention.

The connecting unit 82 of this embodiment has a fastening portion 85 such as a hook formed at the far end of the arm. The tightening portion is shaped like a button formed by the far end of the arm that is hooked or inflated or extended as in this embodiment.

Examples of orthodontic treatment

A practical embodiment of orthodontic treatment performed using the orthodontic treatment of the present invention is described below.

First Treatment Example

11 is a diagram illustrating a first treatment embodiment according to the present invention, wherein the orthodontic support structure 30 is implanted in a jawbone covered with a gingival mucosa layer. In Fig. 11, elements similar or identical to those shown in Figs. 1A-1B, 2, and 5A-5B are designated by the same reference numerals and descriptions of the elements are omitted.

After implanting the implant unit 31 in the jaw bone 90, the connecting unit 12 is fixed to the implant unit 31 by the above-described method so that the tightening unit 15 is positioned at a desired position. The orthodontist then attaches one end of the wire 93 to the tightening part 15 and attaches the other end to the bracket, eg fixed to the tooth. As a result, the corrective force is applied to the teeth from the proper direction.

According to the present invention, the orthodontic support structure 30 is positioned so that its upper part is exposed to the oral cavity and the joint between the implant unit 31 and the connection unit 12 is when the support 30 is implanted in the jaw bone 90. It is located away from the gingival mucosa layer 91. Therefore, the joint can be cleaned with a toothbrush, for example to maintain the best cleanliness.

Furthermore, since the upper portion of the implant unit 31 is exposed to the oral cavity, the support 30 can be removed from the jaw bone 90 in an easy and fast manner upon completion of the orthodontic treatment. This can be done, for example, by pulling the implant unit 31 by fixing the top of the implant unit 31 with a pliers. When the upper portion of the implant unit 31 exposed to the oral cavity is formed into a regular hexagon, the implant unit 31 is removed by rotating it with a wrench to return the external thread buried portion 33 of the implant unit 31 to its original state. The support 30 can also be removed easily and quickly in this case as well.

Preferably, the curved surface 37 below the narrow portion 18 of the implant unit 31 should be polished to form a mirror surface. This is because the mirror surface provides good affinity and adhesion to the mucosal tissue of the gingiva mucosa layer 91 passing through the curved surface 37.

If, during treatment, the connection unit 12 is destroyed or the need arises to change the support point (position of the fastener 15), the connection unit 12 can be replaced with a new one. Moreover, the wire 93 or lingual chain is directly attached to the implant unit if desired.

Second Treatment Example

12 is a diagram illustrating a second treatment embodiment according to the present invention, wherein the orthodontic support structure 30 is implanted in the jawbone 90. In Fig. 12, elements similar or identical to those shown in Figs. 1A-1B, 2, 5A-5B, and 11 are denoted by the same reference numerals and description of the elements is omitted.

In the embodiment of FIG. 11, the arm 14 of the connecting unit 12 extends horizontally in a straight line, which arm 14 can be bent or curved as shown in FIG. Such bending of the arm 14 is possible if it is made of plastic deformation material.

The wire 93 attached to the arm 14 or the tightening part 15 may contact the gingiva mucosa and cause discomfort or inflammation, or slightly reduce the position of the tightening part 15 (supporting point). If necessary, it may be set separately from the gingival mucosa layer 91 or otherwise repositioned by adjusting the curvature of the arm 14. When the arm is bent only on a vertical plane (parallel to the longitudinal axis of the implant unit) and the direction of orthodontic force is placed on a line connecting the tooth to be corrected with the implant unit, the arm is fixed in a specific horizontal direction. It does not need to be extended. In this case, the buried portion of the junction portion and the narrow portion of the implantation unit may have a circular cross section.

Third Treatment Example

13 is a diagram illustrating a more practical embodiment of orthodontic treatment performed to lower the canine 96.

The implant unit 31 of the orthodontic support structure 30 is implanted in the jaw bone 90 so that the implant unit 31 does not damage the nerves or roots of the canine 96. Then, the connecting unit 12 is fixed to the implant unit 31 while fixing the tightening unit 15 in the position where the support point is located. Then, one end of the rubber chain 94 is attached to the fastening portion 15 of the connecting unit 12 and the other end of the rubber chain 94 is mounted to the bracket 95 fixed to the canine 96, The pulling force of the furnace is applied to the canine 96.

Fourth Treatment Example

  Figure 14 is a diagram illustrating a fourth treatment embodiment of the present invention wherein two pairs of teeth 99 in the upper jaw are corrected using two orthodontic support structures. In this embodiment, the orthodontic support structure described in the sixth embodiment having two arms 63 and 64 respectively is used.

Figure 15 is a diagram illustrating a fifth therapeutic embodiment of the present invention wherein two pairs of teeth 99 in the upper jaw are corrected using one orthodontic support structure. In this embodiment, the orthodontic support structure described in the seventh embodiment (Fig. 9) having four arms 73 to 76 is used.

15, the leaf spring 98 is mounted to the tightening portion 15 of each arm 73 to 76 of the orthodontic support structure implanted in the upper jaw, and the far end of each leaf spring 98 is a tooth ( It is attached to the lingual button 97 fixed to 99. Orthodontic force is applied to the plurality of teeth 99 in a manner to correct the position.

The orthodontic support structure of the present invention is described with reference to the specific embodiments shown in the accompanying drawings, but the present invention is not limited to these embodiments. It will be apparent to those skilled in the art that various changes and modifications are possible in practical application without departing from the spirit and scope of the present invention and that all such changes and modifications fall within the technical features of the present invention.

As an embodiment, the present invention may be modified such that a protrusion is formed on the inner circumferential surface of the engaging portion of the connection unit, and a recess that can be integrated with the protrusion is formed on the narrow portion of the implantation unit. In this modification, the projecting portion on the engaging portion is fitted into the recessed portion in the narrow portion so that the connecting unit and the implanting unit are more securely fixed.

Further, even if the projection 46c on the engagement portion 46 of the fourth embodiment is raised to a smooth hill shape, the projection 46c can be formed in a hook shape that is more rapidly curved inwardly. This hook-shaped protrusion has a greater resistance to the force acting on the connecting unit in the direction opposite to the direction of arrow A shown in Fig. 6A, thereby restraining the engaging portion from being easily detached from the implant unit.

Figure 16 is a transverse cross-sectional view of the head of the implant unit of the orthodontic support structure according to another embodiment of the present invention. In this embodiment, the intermediate portion 92 of the connecting unit has a flat inner surface as shown in Fig. 1A, and the head of the implant unit is a substantially circular cross section with the side cut off to form a plane as shown in Fig. 16. Has When the connection unit is mounted to the implantation unit, the plane of the implantation unit is in intimate contact with the flat inner circumferential surface of the intermediate portion 92, thereby restraining the connection unit from rotating around the implantation unit.

As described so far, the orthodontic structure of the present invention is easy to handle, and even in the oral cavity providing a limited treatment space, the connection unit can be attached to the implant unit in a simple but reliable manner. Thus, the orthodontic support structure of the present invention alleviates the heavy work of orthodontic technicians in performing orthodontic treatment.

Claims (10)

A transplant unit implanted in a desired region in the jaw bone; And A connection unit attachable to an upper portion of the implant unit, The connecting unit A female part having a tightening part extending into the oral cavity; And And an engagement portion having an opening at one end, the engaging portion being detachably mounted to the implantation unit in a direction crossing the longitudinal axis of the implantation unit. The orthodontic support structure according to claim 1, wherein the implant unit has a narrow portion at an upper portion thereof, and the engaging portion of the connection unit has a U-shaped inner surface structure that can be mounted to the narrow portion of the implant unit. 2. The orthodontic support structure of claim 1, wherein a locking mechanism is provided at the point of contact between the implant unit and the link unit to prevent the link unit from rotating around the implant unit. 4. The arm portion of the connecting unit and its engagement portion shorter than the arm portion are connected by an intermediate portion to form a continuous J-shaped structure, wherein at least a portion of the inner surface of the intermediate portion has a flat area, and the implant The head of the implant unit provided directly over the narrow part of the unit has a generally circular or oval cross section in which the polygonal cross section or side is cut to form a plane, and the locking mechanism is implanted with a flat area on the inner surface of the intermediate part of the connecting unit. And a flat area on the inner surface of the head of the unit, wherein the flat area on the inner surface of the intermediate part is in contact with the plane of the head when the connecting unit is fitted with the implant unit. The narrow part of the transplant unit has a polygonal cross section, an elliptical cross section, or a substantially circular cross section in which a side is cut to form a plane, and the engaging portion of the connection unit can be mounted on the narrow portion. A polygonal inner surface structure, an elliptical inner surface structure, or an approximately circular inner surface structure in which side surfaces are cut to form a plane, and the locking mechanism is formed by the inner surface structure of the engaging portion and the cross-sectional shape of the narrow portion. Orthodontic support structure, characterized in that. 3. The orthodontic support structure of claim 2, wherein at least the engagement portion of the connection unit is made of a plastic deformation material, and the engagement portion is fixed to the narrow portion of the implantation unit by crimping the engagement portion. 2. The orthodontic support structure of claim 1, wherein at least the engagement portion of the connection unit is made of plastic deformation material and the width of the opening in the engagement portion is smaller than the maximum thickness of the portion of the implant unit to which the engagement portion is mounted. The orthodontic support structure of claim 1, wherein the arm is made of a plastically deformable material. 2. The orthodontic support structure of claim 1, wherein the direction crossing the longitudinal axis of the implant unit is a direction substantially perpendicular to the longitudinal axis of the implant unit. 3. The orthodontic support structure of claim 2, wherein the head of the implant unit directly above the narrowing portion tapers toward the longitudinal axis of the implant unit.

Images