KR100544272B1 - Implant for Instant Fixing - Google Patents

Abstract

The present invention relates to an implantable implant that can be fixed immediately, the implantable implant according to the present invention is abutment (Abutment) is screwed to the upper end of the fixture embedded in the alveolar bone and the abutment upper peripheral edge In the implant to which the crown (Crown) is extrapolated, the abutment is milled into the head of the outer upper portion and the body portion of the outer lower, the crown is milled by forming an insertion groove of the same shape as the head, The manufactured crown is extrapolated to the head of the abutment, characterized in that it is maintained and fixed by the negative pressure (Negative Pressure) and frictional force.

According to the present invention by replacing the conventional casting method by milling the crown to have a variety of standard dimensions by simplifying the manufacturing and joining process of the crown by significantly reducing the time required to complete the procedure of implantation and fixation of the crown at the same time It can work. In addition, according to the present invention there is an effect that can easily repair or transition by holding and fixing the crown by the sound pressure and friction force without a separate coupling means.

Implants, crowns, milling, abutments.

Description

Implants for Instant Fixing

1 is a block diagram showing a configuration of an abutment according to the present invention.

Figure 2 is a cross-sectional view showing the cross-sectional shape of the crown according to the present invention.

Figure 3 is an exemplary view illustrating the head side of the abutment according to the present invention.

Figure 4 is a block diagram showing the overall configuration of the implant according to the present invention.

5 is an exemplary view illustrating a conventional implant procedure.

The present invention relates to an implant which can be fixed immediately. More specifically, prior to implantation, the abutment and the crown are manufactured by milling a variety of standard dimensions in advance of the implant, and the implant and the crown are produced when the implant is placed. The present invention relates to an implantable implant which can be completed at the same time as the implantation is completed by fastening the abutment of the appropriate height to the fixture according to various shapes and sizes of the extraction hole, and selecting and fixing the crown of the appropriate dimension.

The teeth are gradually dropped in the order created from a certain point in order to adapt to the growth of the jaw, and permanent teeth are generated at the position of the dropped teeth. However, since the permanent teeth are not regenerated once dropped out, medical procedures have been developed to provide a permanent substitute for permanent teeth due to deterioration of the permanent teeth or accidents. As the procedure, a bridge procedure for processing teeth close to the dropped permanent teeth and a partial or full denture procedure performed when no adjacent teeth supporting the bridge are present are known.

However, the bridge treatment processes teeth close to the dropped tooth, thereby damaging healthy teeth, partial dentures and whole dentures are inconvenient to be attached to or detached from the oral cavity, resulting in formation of foreign bodies and damage of healthy teeth connected to dentures. There is a problem such as that, recently implantation is being used.

In general, dental implant means the replacement of the missing natural tooth itself, or a screw-shaped implant fixture is fastened to the alveolar bone so that it fuses with the bone for a certain period of time and then an abutment thereon. It is a dental procedure that restores the original function of teeth by fixing prostheses such as crowns and artificial teeth.

FIG. 5 is a view illustrating a conventional dental implant procedure, where a conventional implant procedure first performs implantation of an implant fixture in an extraction hole, and then connects the abutment to the implant fixture several months later. When the second procedure is performed, and the implant is confirmed to be fixed to the bone, the impression is made of artificial teeth by casting and then fixed to the abutment by screw fastening or cement method.

In such a conventional implant, there was an inconvenience of having to visit the hospital several times for the first, second, impression, and final setting.

In the conventional implant, a crown is manufactured by artificial teeth, and the process is performed by first forming a plaster model with an impression and then cutting the model using a pin-work process. After the rough process, a wax-up process is performed to make a wax model having the shape and size of an artificial tooth to be molded. The wax model is surrounded by an investment material and the wax model is physically removed therefrom when the investment material is cured. After the investment (Investment) process to form a mold, the injection molding the artificial tooth by injecting a metal solution into the mold, and through the polishing (Polishing) process to remove the oxide on the surface of the cast artificial tooth Is done.

However, according to the casting method of the conventional crown manufacturing method as described above, when the impression is made in the oral cavity of the patient, it is practically difficult to make the bone as it is, and an error occurs. It also occurs in the pinwork process, the wax-up process, the investment process, and the casting and polishing process.As a result of these manufacturing errors, the most important factors in the implant cannot be obtained, such as fitness and passivity. There was a problem that caused the crown to fall off.

In addition, the manufacture of the crown according to the casting method is a complicated process mentioned above, so it takes a lot of time, causing inconvenience to the patient and eliminating the error in the casting (Fitness) and passivity (Passivity) There was also a problem that the technician is under a lot of stress to secure.

In the conventional implant method, the crown type is fixed to the abutment, and a screw type and a cement type have been mainly used. Such a conventional screw type is repeatedly chewed using artificial teeth after the implant procedure. There is a problem that the screw is gradually loosened or fractured by the lateral force and the bite force (vertical pressure, lateral pressure, rotational pressure) acting on the artificial tooth, and the cement type is used to repair or repair the implant after implantation or to fix the implant with the surrounding teeth. There was a problem that the transition is not easy.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to mill a fabrication of abutment of a predetermined height and to manufacture a crown to have a variety of standard dimensions to replace the conventional casting method After milling the crown and manufacturing it, the crown with the most suitable dimensions is selected from the manufactured crowns and is immediately maintained and fixed to the abutment by sound pressure and friction force, thereby simplifying the manufacturing and fixing process of the abutment and crown. It is to provide an implantable implant that can be drastically reduced in time.

In addition, an object of the present invention is to precisely milling the crown to change the contact point of the occlusal surface according to the condition of the patient, the implant procedure by forming a predetermined gap on the occlusal surface and the side where the crown and implant abutment abut By effectively absorbing and dispersing the occlusal force and lateral force generated by repeated repetitive chewing, it is possible to provide an implantable implant which can maintain stability for a long time.

Immediately fixable implant according to the present invention for achieving the object as described above is abutment (Abutment) is screwed to the top of the fixture (embedded to the alveolar bone) and the crown (abutment on the outer periphery of the abutment) In the implant to which the crown is extrapolated, the abutment is manufactured by milling the head of the outer upper portion and the body of the outer lower portion, and the crown is milled by forming an insertion groove of the same shape as the head. The crown is extrapolated to the head of the abutment is characterized in that it is maintained and fixed by the negative pressure (Negative Pressure) and friction.

The abutment has an internal abutment fastened to the fixture by inserting a screw into the fastening hole formed in communication with the inner side of the head and the body, and a screw formed with the head and the screw. It is characterized in that at least one of the external abutment is inserted into the inner fastening hole to protrude the head is fastened to the fixture.

The height of the body is 1 to 5mm, the height of the head is characterized in that 2.5 to 5mm.

The side of the head is inclined so that the inclination angle of the side is -1 to 0 °.

The head portion of the abutment is inclined side and is characterized in that it is fixed to maintain the extrapolated crown to the head portion.

When the crown is extrapolated to the head of the abutment, spaced apart so as to form a predetermined gap (Gap) on each of the occlusal surfaces and side surfaces which are mutually adjacent to each other to absorb and disperse external forces acting on the crown. .

The gap is characterized in that formed in the size of 100 to 400㎛ on the occlusal surface, 20 to 50㎛ on the side.

The material of the crown is FRC resin, the height of the inclined contact portion of the outer bottom contacting the gingiva is 1.5 to 3mm, the overall height is 5 to 8mm, the near-central width is 6 to 12mm, narrow-to-lingual width It is characterized by being 6 mm.

The material of the crown is zirconium, characterized in that the thickness of 0.3 to 1mm.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the implantable implant according to the present invention and its configuration in detail. Here, the configuration and operation of the present invention shown in the drawings and described by it are described as at least one embodiment, by which the technical spirit and core construction and operation of the present invention described above are not limited. In addition, in the following detailed description of the implant which can be fixed immediately according to the present invention, the art that obscures the gist of the present invention or the well-known technique is omitted.

1 is a block diagram showing the configuration of the abutment according to the present invention, there are two types of abutments according to the present invention, an internal abutment and an external abutment, as shown in the figure, milling It is produced by milling using a machine.

The internal abutment is an internal type, as shown in the drawing, the head 10 and the body 20 are integrally milled, and the head 10 and the body 20 formed integrally inside the body 20. The abutment band 1 and the plurality of screws in which the fastening hole 30 is formed in communication with the abutment screw 2 formed from the lower end to a predetermined height are formed.

The internal abutment is connected to the fixture 3 by being screwed into the fastening hole 30 of the abutment band 1 and fastened to the upper end of the fixture 3. , The entire abutment screw 2 is inserted into the abutment band 1 and fastened.

In addition, the external abutment is an external type, the abutment band 1 and a plurality of screws formed by milling only the fastening hole 30 penetrating the inside of the body portion 20 as shown in the figure is The abutment screw 2 formed by milling the head portion 10 integrally on the upper end of the threaded portion 40 formed from the lower end to a predetermined height is formed.

The abutment screw 2 is inserted into the fastening hole 30 of the abutment band 1 in the same manner as that of the internal abutment to the fixture 3. In this case, unlike the internal abutment, the head portion 10 of the abutment screw 2 protrudes upward from the body portion 20 of the abutment band 1. There is this.

Here, preferably, the screw 2 of the inner abutment band and the screw portion 40 of the outer abutment are both formed of titanium or a titanium-based alloy. In addition, the body portion 20 is preferably formed of a zirconium (Zirconium) or zirconium-based alloy, the coupling of the body portion 20 and the fixture (3) by any known method Not limited to the example, the anti-rotation design is applied to prevent rotation after the abutment band is coupled to the fixture, although not shown in the drawing, for example, a fixture 3 Design / manufacturing the lower part of the abutment band (1) into a shape that can be fixed or fitted according to the upper shape of the fixture (3) according to the upper shape of the fixture (3) It can be applied to the present invention that can be connected to each other (joint connection), and can be designed and applied according to the shape of the products that are commonly released and distributed, such a fixture (3) and the abutment band (1) Determination Detailed examples of the staking anymore as a general description of known / well known is omitted.

The internal or external abutment is milled such that the head 10 and body 20 have a number of specific heights, which is the patient's gum in fastening the abutment to the fixture. In order to select a suitable abutment in consideration of the height, the head portion 10 of the abutment according to the present invention is formed with a height of 1 to 5 mm and a width of 3 to 4 mm, the body portion ( 20) is preferably formed with a height of 2.5 to 5 mm and a lower width of 4 to 6 mm.

The abutment manufactured by milling as described above is extrapolated and fixed with an artificial tooth crown. The crown according to the present invention is manufactured by milling using a precise milling machine to have various heights and widths in shape. .

Figure 2 is a cross-sectional view showing a cross-sectional shape of the crown according to the present invention, as shown in the figure, the crown 4 is curved in the upper end concave similarly to the natural teeth in the shape and the abutment at the lower end Insertion groove 50 is formed so that the head portion 10 of the insertion, the outer lower end of the insertion groove has a support inclined portion 60 inclined from the inner side to the outer side. And the side of the crown 4 is inclined concavely from the top of the side to the bottom of the side is protruding the end side of the concave inclined portion is formed in close contact inclined portion 70 is gently inclined from the protruding portion to the bottom of the side.

In the milling process of the crown 4, the size of the insertion groove 50 is the head portion 10 of the abutment so that the head portion 10 of the abutment can be inserted and fixed by the holding force. The crown 4 according to the present invention is preferably milled, so that it is suitable for securing the fitness, so that the inner abutment and the outer abutment are not limited to the type of abutment described above. It can be used for both butts, making it compatible with both types.

The crown 4 milled into such a shape uses FRC resin and zirconia as its materials. The FRC resin refers to Fiber Reinforcement Composite Resin, in which specific fiber tissues are mixed with ordinary dental resin to increase elasticity and strength, and high elasticity makes joint splinting very easy when repairing or repairing an implant and expanding an implant. It can have many advantages.

The crown made of the FRC resin is processed to have a variety of dimensions in height and width, the inclination inclined portion 70 of the crown 4 according to the present invention has a height of 1.5 to 3 mm, from the bottom to the top It is preferable that the height of all the crowns is 5.5 to 7.5 mm, the width between the near-central is 7 to 12 mm, and the width between the narrow-lingual side is 6 mm. However, it is apparent that the range of dimensions can be expanded according to the shape of the extraction hole and the thickness of the alveolar bone, and can be manufactured by milling a crown according to a wider range of standard dimensions. Here, the near-central width means the width of the crown in the longitudinal direction, and the narrow-lingual width means the width of the crown on the cheek side and the tongue in the thickness direction of the crown orthogonal to the near-central width.

In addition, the crown made of zirconium is milled to have a thickness of 0.3 to 1 mm, and the crown made of zirconium is mainly used for artificial teeth in the anterior part where it is difficult to use the crown made of FRC resin due to aesthetic factors. It is preferably used for coping to add strength or for coping of posterior molars where the most occlusal force is concentrated mainly by chewing action to chew food.

The milled crown according to the present invention is held and fixed to the abutment by the negative pressure (Negative Pressure) and the appropriate frictional force of the portion where the crown and the abutment abut.

Since the size of the insertion groove 50 of the crown and the head 10 of the abutment is milled appropriately, the crown and the abutment are in contact with each other in a direction opposite to the direction in which the crown is to be dropped. A negative pressure is generated to generate a retention force that holds the crown from falling out of the abutment, and the crown is held more firmly by the friction force generated on the contact surface. It will be fixed.

In addition, in the case of implanting a plurality of implants, the paths of the respective implants are not parallel, and a predetermined angle is inevitably formed. The formation of angles on the paths increases the holding force in the implant according to the present invention.

Figure 3 is an exemplary view showing an example of obliquely milling the head side in accordance with the present invention. As shown in the drawings, in the present invention, the head 10 side of the abutment can be milled in the form of a vertically narrow so as to be inclined at a predetermined angle, which is narrowed from the upper end to the lower end of the head 10 side. By tilting to prevent the falling edge of the insertion groove 45 of the crown in the inclined surface (A position shown in Figure 3) in the case of a force to drop off the crown extrapolated to the head 10 is applied to prevent the fall This is to keep the crown fixed. Here, when it is necessary to remove the crown for replacement or repair of the implant, if a strong force is concentrated on the crown and the dropping force is given to the crown, the crown elasticity does not easily catch the head inclined surface. Can be removed

In the present invention, the inclination of the side of the head 10 is preferably milled within a range of -1 to 0 °, in which case the top side of the head 10 protrudes approximately 50 μm from the bottom side. Therefore, as will be described later, the gap between the side of the head 10 and the insertion groove 50 of the crown is approximately 30 μm, so as to remove the crown as shown in FIG. The insertion groove 50 is caught on the upper side surface of the head portion 10 which protrudes about 20 μm more than the end of the insertion hop 40 when it is detached with a strong force to remove the crown. The 20 μm or so may be sufficiently overcome and removed by the elasticity of the crown.

Meanwhile, in the present invention, a predetermined gap is formed on a contact surface of the insertion groove 50 of the crown to which the abutment is inserted and fixed to the crown and the head portion 10 of the abutment. By dispersing and absorbing the external force acting on the implant after the procedure of the implant to prevent lethal damage to the implant.

That is, when the implant is repeatedly chewed using artificial teeth, two external forces are applied by the artificial teeth and the other teeth on the upper and lower sides or the left and right sides. One is the occlusal force, which is the vertical force, and the other is the horizontal force. Lateral force acts to damage the implant, thus forming and compensating a gap to cushion the external force to prevent concentration at any point of the implant.

The contact surface of the crown and the abutment consists of an occlusal surface and a side surface. In the present invention, a gap of 100 to 400 μm is formed on the occlusal surface and 20 to 50 μm on the side surface to allow repeated repetitive chewing action after the procedure of the implant. This can compensate for the occlusal and axial forces acting on the implant.

Referring to the procedure of the implantable implant according to the present invention as described above, first, by using a precision milling machine to manufacture a plurality of crowns having a variety of standard dimensions and abutments of a predetermined height.

The implant fixture is embedded in the alveolar bone according to the shape of the extraction hole and the alveolar bone, and the implant abutment to fix the crown to the implant fixture is appropriately selected in consideration of the height of the patient's gum and then screwed together. When the implant abutment is combined, a crown suitable for the abutment is selected from the manufactured crowns, and the selected crown is inserted into the abutment and fixed. Figure 4 shows the overall configuration of the implant according to the present invention finally finished through the above process.

Although the implantable implant according to the present invention has been described above, the technical scope of the present invention is not limited to the contents described in the embodiments. In addition, in order to perform the same purpose of the present invention, those skilled in the art It should be noted that the equivalent configuration modified or changed by the person does not depart from the scope of the technical idea of the present invention described in the claims.

Therefore, modifications or changes in equivalent configurations by those skilled in the art will be constrained by the technical scope of the present invention as set forth in the claims.

According to the implantable implant according to the present invention as described above by replacing the conventional casting method by milling the crown to have a variety of standard dimensions by simplifying the manufacturing process and the coupling process of the crown by significantly reducing the time required At the same time the implant is effective to complete the fixation of the crown.

In addition, according to the present invention there is an effect that can easily repair or transition by holding and fixing the crown by the sound pressure and friction force without a separate coupling means.

In addition, according to the present invention by replacing the error occurring on the conventional casting by milling process to ensure the fit (Fitness) between the crown and the abutment to prevent the external force is concentrated on a particular implant (Hammer Effect) and occlusal surface It has the effect of changing the contact point of the variously, and forms a predetermined gap in the occlusal surface and the side where the crown and the implant abutment are absorbed to absorb the occlusal force and lateral force generated by repeated chewing action after the implant procedure. Dispersion has the effect of preventing fatal damage due to external force applied to the implant.

Claims (9)

In the implant that the abutment is screwed to the upper end of the fixture embedded in the alveolar bone and the crown is extrapolated to the outer periphery of the abutment, The abutment is manufactured by milling the head of the outer upper portion and the body portion of the outer lower portion, the crown is milled by forming an insertion groove of the same shape as the head portion, the manufactured crown is the head of the abutment Immediately fixable implant, characterized in that it is extrapolated to and maintained by negative pressure and friction force. The method according to claim 1, The abutment is an internal abutment which is fastened to the fixture by a screw is inserted into the front of the fastening hole formed in communication with the inside of the head and the body unit integrated with each other; The screw is formed integrally with the head and the screw portion is at least one of the external abutment is inserted into the body inner fastening hole protruding the head is fastened to the fixture. The method according to claim 1 or 2, The height of the body portion is 1 to 5mm, the head height is 2.5 to 5mm the implantable immediately fixed. The method according to claim 1 or 2, Immediately fixable implant, characterized in that the head side is inclined side angle is -1 to 0 °. The method according to claim 1 or 2, The head portion of the abutment is inclined side by side and can be fixed immediately, characterized in that for holding the crown extrapolated to the head holding. The method according to claim 1, When the crown is extrapolated to the head of the abutment is inserted so that a predetermined gap (Gap) is formed in each of the occlusal surface and the side mutually adjacent to each other so as to absorb and disperse the external force acting on the crown Implantable Implant. The method according to claim 6, The gap is 100 to 400㎛ on the occlusal surface, 20-50㎛ on the side of the implantable immediately fixed, characterized in that formed. The method according to claim 1, The crown, The material is made of FRC resin and the height of the inclined contact portion of the outer lower end contacting the gingiva is 1.5 to 3 mm, the overall height is 5 to 8 mm, the near-central width is 6 to 12 mm, and the narrow to lingual width is 6 mm. Implantable immediately implantable, characterized in that. The method according to claim 1, The crown, Implantable immediately implantable, characterized in that the zirconium material is 0.3 to 1mm in thickness.

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