KR20220159787A - Fixture and implant for dental comprising the same - Google Patents

Abstract

The present invention relates to a dental prosthetic fixture and a dental implant including the same, and more particularly, to a dental prosthetic fixture which minimizes physical stimulation on the inner wall of a bone cavity during a fixture implanting procedure, and quickly induces high-quality bone growth from the inner wall of the bone cavity to the surface of the fixture after the fixture is implanted, to promote initial fixation of the fixture and minimize side effects that may occur after the implantation of the fixture, so that a successful intraoral implant procedure can be performed, and a dental implant including the same.

Description

Dental prosthetic fixture and dental implant comprising the same {Fixture and implant for dental comprising the same}

The present invention relates to a dental prosthetic fixture and a dental implant including the same, and more particularly, minimizes physical stimulation on the inner wall surface of the bone cavity during the implantation procedure of the fixture, and from the inner wall surface of the bone cavity after the fixture is placed. A dental prosthetic fixture that promotes the initial fixation power of the fixture by allowing high-quality bone growth to be induced more quickly on the surface of the fixture and minimizes side effects that may occur after fixture placement to enable successful intraoral implant surgery, and dentistry including the same It's about dental implants.

Implant surgery originally refers to a prosthesis procedure that restores human tissue when it is lost, but in a narrower sense in dentistry, refers to a series of procedures for implanting artificially made teeth.

Specifically, a dental root fixture made of titanium, etc., which is not rejected by the human body, is placed in the bone cavity to replace the lost tooth root (root), and then an upper prosthetic abutment is fixed to the upper part to improve the function of the tooth. It is a recovery procedure.

That is, implant structures in dentistry can be divided into fixtures and abutments, and various dental prostheses are installed on top of the abutment according to the purpose of treatment.

On the other hand, the most important part to be considered for the success of the implant procedure is the correct placement of the fixture. The fixture is a fundamental part of the implant structure, and the success of the implant procedure depends on how much the fixture is planned and firmly placed in the alveolar bone, and then good ossification is induced on the surface of the fixture to resemble natural teeth. It is not an exaggeration to say that it depends on whether the degree of bonding can be demonstrated.

In other words, since the fixture is placed into the alveolar bone and is integrated with the alveolar bone by ossification within the alveolar bone, if the direction of fixture placement and the condition of the alveolar bone of the recipient are not sufficiently considered during the initial implantation process of the fixture, the abutment on it Even if ment and dental prosthesis are installed without difficulty, it cannot be regarded as a successful procedure.

Accordingly, the fixture must be firmly implanted in the alveolar bone to guarantee the function of the implant structure as an artificial tooth for a long period of time.

In particular, if the first fixture is not accurately placed, ossification cannot be achieved sufficiently around the fixture, and the holding power is lowered, causing symptoms, and bone resorption.

Accordingly, the conventional fixture is a situation that depends only on the structure of a uniform fixture in which a thread is formed on the surface of the cylindrical body to secure a strong holding force and support force, and the fixture is screwed to the alveolar bone.

Korean Registered Patent No. 10-1594095

The present invention was created to solve these problems in view of the above-mentioned problems in the prior art, and minimizes physical stimulation on the inner wall surface of the bone cavity during the fixture placement procedure, and after the fixture is placed, it moves from the inner wall surface of the bone cavity to the surface of the fixture. Provides a dental prosthetic fixture and a dental implant including the same that enable a successful intraoral implant procedure by promoting the initial fixation of the fixture so that high-quality bone growth can be induced more quickly and minimizing the side effects that will occur after fixture placement But it has a purpose.

As a means for achieving the above object, the present invention includes a fixing unit inserted into a bone cavity, wherein the fixing unit includes: a core; bone fixation means formed on the outer lower side of the core; A bone guide means formed on the upper part of the ball fixation means outside the core, wherein the bone fixation means is implanted on the inner wall surface of the bone cavity and wedges the surrounding bone to ensure physical bonding force at the initial stage of implantation The bone induction means is characterized in that it does not physically damage the inner wall of the bone cavity and smoothly supplies blood to quickly induce bone recovery and enable the formation of strong cortical bone.

Specifically, the fixing unit may include a core; a spiral bone fixation means formed in a spiral shape in the spiral section of the lower outer circumferential surface of the core and implanted in a screw fastening method on the inner wall surface of the bone cavity; and disc-shaped bone guiding means protruding toward the inner wall surface of the bone cavity in the form of a circular band in the guide section of the outer circumferential surface of the upper part of the core and having a smaller diameter than the maximum diameter of the spiral bone fixing means so as to come into contact with the inner wall surface of the bone cavity. It is characterized by including;

In addition, the fixture for dental prosthesis is characterized in that it comprises a cone-shaped shoulder portion formed on the upper end of the fixing portion.

In addition, the uppermost disc-shaped bone guiding means among the plurality of disc-shaped bone guiding means is characterized in that it comes into contact with the lower end of the shoulder part and is integrated with the shoulder part.

In addition, it is characterized in that the maximum diameter of the spiral bone fixation means is formed larger in the range of 0.1 mm to 0.5 mm than the diameter of the disk-shaped bone induction means.

In addition, each of the plurality of disk-shaped bone guide means is characterized in that they are formed with the same diameter so as to have the same distance as the inner wall surface of the bone cavity.

In addition, each of the plurality of disc-shaped bone guide means is characterized in that it is formed with a smaller diameter than the diameter of the bone cavity while having the same spacing as the inner wall surface of the bone cavity.

In addition, each of the plurality of disc-shaped bone guiding means is characterized in that the diameter gradually increases toward the lower disc-shaped bone guiding means.

In addition, a fixture that is placed into the bone cavity; an abutment coupled to an upper end of the fixture; And a crown coupled to the outside of the abutment and having a tooth shape.

The present invention minimizes physical stimulation on the inner wall surface of the bone cavity during the fixture placement procedure, and allows high-quality bone growth to be more quickly induced from the inner wall surface of the bone cavity to the surface of the fixture after the fixture is placed, thereby improving the initial fixation force of the fixture It promotes and minimizes the side effects that will occur after fixture placement, thereby providing an effect that enables a successful intraoral implant procedure.

1 is a view showing the overall appearance of a fixture according to the present invention.
Figure 2 shows one side of the fixture shown in Figure 1;
3 is a view showing a cross-sectional configuration based on line BB shown in FIG. 2;
Figure 4 is a view showing a coupled state with an abutment and a crown based on the cross-sectional configuration of the fixture.
FIG. 5 is an enlarged view of portion A shown in FIG. 2;
6 is a view showing a state in which a fixture is placed in a bone cavity by way of example.
7 is a view showing an example in which a plurality of pin members having different diameters are configured based on a state in which a fixture is placed in a bone cavity.
8 is a view showing one side of a fixture according to another embodiment of an implant fixture.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shapes of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same members are sometimes indicated by the same reference numerals. Detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted.

Fixation of an incomplete fixture in the alveolar bone mainly occurs when the space between the fixture and the alveolar bone is wide. Inflammatory tissues or microorganisms first adhere to and grow on the surface of the fixture, and eventually the implant falls out or must be removed inevitably, causing procedure failure.

In this case, there are cases where the alveolar bone is damaged to such an extent that re-treatment is impossible, which causes enormous human damage to the person being treated. In addition, considering the high cost of the implant procedure, there is no shortage of emphasis on firmly planting the fixture in the alveolar bone.

Accordingly, in recent years, a general fixture forms a spiral thread on the outer circumferential surface of the fixture, applies torque to the fixture and inserts it into the preformed bone cavity (H2), forming tapping (spiral creation) on the inner wall surface of the bone cavity (H2) itself. A fixture is placed in the alveolar bone. This has the advantage that the fixture can be strongly coupled physically into the alveolar bone, and most fixtures adopt this placement structure.

However, damage to the surrounding bone at the initial stage of implantation cannot be ruled out because the screw thread of the fixture strongly penetrates the inner wall surface of the bone cavity H2 in the form of a wedge during the fixture placement process. In addition, since the screw thread digs into the inner wall of the bone cavity (H2), it is not possible to provide a sufficient gap with the fixture, which inhibits the circulation of blood, etc., which promotes bone cell growth, and delays ossification, resulting in implant failure. There was a problem that caused the treatment period to be long.

Therefore, the fixture according to the present invention minimizes physical damage to the inner wall of the bone cavity (H2) during the procedure, guarantees strong physical bonding with the inner wall of the bone cavity (H2), and quickly induces strong cortical bone formation on the surface of the fixture. It was invented so that the implant structure can be established as an oral prosthesis for a long time as an artificial tooth by shortening the implant procedure period and minimizing the side effects that may occur later.

Hereinafter, the present invention will be described in detail based on a prior understanding of the concept of developing a fixture according to the present invention.

1 is a view showing the overall appearance of a fixture according to the present invention, FIG. 2 is a view showing one side of the fixture shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along line B-B shown in FIG. Figure 4 is a view showing the coupling state with the abutment based on the cross-sectional configuration of the fixture, Figure 5 is an enlarged view of part A shown in Figure 2, Figure 6 is a fixture FIG. 7 is a view showing a state in which a fixture is placed in a bone cavity by way of example, and FIG. 7 is a view showing an example in which a plurality of disk-shaped bone guide means having different diameters are configured based on a state in which a fixture is placed in a bone cavity. FIG. It is a view showing one side of a fixture according to another embodiment of.

The fixture according to the present invention may be defined as including a fixing part 10 as shown in FIGS. 1 to 3 and, if necessary, additionally including a shoulder part 20.

Here, integration with the alveolar bone means that the fixing part 10 inserted into the bone cavity H2 is physically coupled to the alveolar bone according to the ossification process of the bone around the fixing part 10 .

In the center of the fixture, a mounting hole (H1) opening upward may be recessed, and the abutment (ABT) may be fastened to the mounting hole (H1). At this time, the sidewall of the mounting hole H1 may be implemented in various ways, and as an example, a certain angle gradient may be formed in the form of upper and lower narrows. The cross-sectional shape of the mounting hole (H1) is preferably circular, and the cross-section of the fastening part of the abutment (ABT) mounted on the mounting hole (H1) is also circular, and the sidewall of the fastening part is the side wall of the mounting hole (H1). It is preferable that it is complementary to the gradient form.

In this configuration, as the abutment (ABT) enters the mounting hole (H1) in the vertical direction, a clamping force is generated between the surface of the abutment (ABT) and the surface of the mounting hole (H1), and the abutment (ABT) can be combined with the fixture in an interference fit method. That is, since sufficient holding force of the abutment (ABT) can be secured without additional screw fastening between the fixture and the abutment (ABT), it is possible to install the abutment (ABT) through a simple blow operation, thereby simplifying installation. It is simple and structurally stable because it does not cause screw loosening or screw shearing due to lateral pressure of adjacent teeth in the oral cavity.

In addition, since the air gap between the abutment (ABT) and the fixture can be minimized by close contact between the abutment (ABT) and the fixture, it is possible to prevent foreign matter from remaining in the implant structure and to reduce the occurrence of odor in the oral cavity. .

A crown (CR) prefabricated in the shape of a tooth may be coupled to the upper outer side of the abutment (ABT). The crown (CR) is a final prosthetic appliance for restoring a defective part during implantation, and is usually made of gold, porcelain, zirconia, PMMA, etc., and may be integrated onto the abutment (ABT) through a bonding means.

The shoulder portion 20 of the fixture is a portion formed at the top of the fixture and downwardly supports the abutment ABT from the top of the fixing portion 10.

The shoulder part 20 may be manufactured in various shapes, for example, it may be formed in a cone shape with an upper and lower beam, and has a flat outer surface. Here, the flat outer surface means an outer surface state in which the spiral bone fixation means 12, the disk-shaped bone induction means 13, grooves, concavo-convex, and groove structures, which will be described later, are excluded.

It should be understood that the micro-scale fine and irregular groove structure by surface treatment commonly applied to fixtures is included in the flat outer surface referred to in the present invention.

Inflammation may occur in the gum tissue around the implant structure during or after the implant procedure, and if left untreated, the inflammation is transferred to the alveolar bone attached to the shoulder portion 20. At this time, when inflammation occurs in the alveolar bone, bone resorption of the alveolar bone around the upper part of the fixture occurs, and there is a risk that the surrounding structure of the shoulder portion 20 is exposed.

At this time, when there are irregularities on the surface of the shoulder part 20, things such as inflammation and bacteria are more easily adhered to the shoulder part 20, making it difficult to operate the tool for removing inflammation, and even with a cleaning device, the shoulder part 20 ), the surface of which cannot be cleaned thoroughly.

On the other hand, since the outer surface of the shoulder portion 20 in the present invention is formed in a cone shape with a flat surface, it is relatively easy to treat foreign substances adhering to the shoulder portion 20 .

The upper and lower heights of the shoulder portion 20 may be made within a range of approximately 0.5 mm to 3 mm in consideration of the average amount of bone resorption when inflammation occurs.

Next, the fixing part 10 extends from the lower side of the shoulder part 20, and is a part that is integrated with the alveolar bone in earnest through ossification of the alveolar bone in the bone cavity H2, and has a coupling section Z1 in the longitudinal direction. and the induction period (Z2) can be functionally distinguished.

At this time, the coupling section Z1 at the bottom of the fixing unit 10 and the induction section Z2 at the top may be arranged separately. Here, the coupling section (Z1) may be formed with various coupling means, as an example, means a portion where the spiral bone fixation means 12 to be described later is formed, and the induction section (Z2) is a disk-shaped bone induction means 13 to be described later. ) means the part formed.

More specifically, the fixing part 10 is formed in a spiral shape in the core 11 serving as the axis of the fixing part 10 and the coupling section Z1 of the lower outer circumferential surface of the core 11 to form the bone cavity H2. The spiral bone fixation means 12 implanted by screw fastening on the inner wall surface and the core 11 are protruded toward the inner wall surface of the bone cavity H2 in the form of a circular band in the guide section Z2 of the upper outer circumferential surface of the core 11, and the bone It may be exemplified as including a disk-shaped bone guide means 13 having a smaller diameter d3 than the maximum diameter d1 of the spiral bone fixation means 12 so as to come into contact with the inner wall surface of the cavity H2.

First, the spiral bone fixing means 12 is protruded in a spiral form on the lower outer circumferential surface of the core 11 to create a spiral on the inner wall surface of the bone cavity H2. The maximum diameter d1 of the spiral bone fixation means 12 is preferably larger than the diameter d4 of the preformed bone cavity H2, and the bone diameter d2 of the spiral bone fixation means 12, the core 11 The diameter of ) is preferably smaller than the diameter d4 of the preformed bone cavity H2.

This is, while the spiral bone fixation means 12 is screwed to the inner wall surface of the bone cavity H2 in the process of placing the fixture, a certain distance between the surface of the core 11 and the inner wall surface of the bone cavity H2. This is to induce the formation of strong cortical bone even in the joint area.

In the spiral bone fixation means 12, a cut groove 14 may be formed for discharge of chips cut by the spiral bone fixation means 12, supply of washing water, and the like. The incision groove 14 may be exemplified by incising the surface of the spiral bone fixation means 12 to a certain depth. The incision groove 14 may be formed in a straight line along the upper and lower length directions of the fixing unit 10, and may be formed on all sides of the spiral bone fixing means 12 with a phase difference of a certain angle.

The disc-shaped bone guide means 13 can be formed on the upper side of the fixing part 10, that is, the guide section Z2, and directly wedges the inner wall surface of the bone cavity H2. Spiral bone fixation means 12 ), it is in contact with the inner wall of the bone cavity (H2) to induce high-quality ossification in the bone cavity (H2).

Since the disk-shaped bone guide means 13 is provided on a line that does not apply physical stimulation to the inner wall surface of the bone cavity H2, there is no physical damage to the bone in the alveolar bone around the guide section Z2 of the fixing part 10, Due to the advantage of smooth blood supply, bone recovery is rapidly induced and stronger cortical bone formation is possible.

In general, implant surgery is not a one-time procedure, but several steps, such as placing a fixture, having a healing period until the bone and gum tissue are sufficiently healed, and then attaching an abutment (ABT) and mounting an upper prosthesis on top of it. Since is a procedure that proceeds in a time-sequential manner, as long as the procedure is performed for a relatively long period of time, the recovery rate of the human tissue of the recipient must be rapidly induced during the fixture placement process, so that the overall period of the implant procedure can be shortened.

Accordingly, the fixture according to the present invention induces rapid bone recovery of the alveolar bone in the induction period (Z2) at the initial stage of implantation, thereby shortening the overall implant procedure period.

In particular, even if the fixture is successfully placed, there is a concern that bone resorption frequently occurs in the upper part of the fixture due to side effects of the procedure, etc. By inducing strong cortical bone formation in the upper part of the fixture, that is, the induction zone (Z2) It contributes to minimizing side effects that may occur after implantation.

From this point of view, even in the case of a subject with low bone density, a successful fixture placement procedure is possible.

The disc-shaped bone induction means 13 may be understood as a circular band shape or a circular shelf shape around the core 11 in the circumferential direction, and a plurality of disc-shaped discs in the guide section Z2 according to the specifications of the fixture. The bone guiding means 13, for example, 1 to 3 disc-shaped bone guiding means 13 are spaced apart in the upper and lower directions to form an guiding space 15 between adjacent disc-shaped bone guiding means 13. .

In addition, the circular band shape of the disc-shaped bone induction means 13 may be in a connected form, or may be partially incised if necessary, and furthermore, a plurality of disc-shaped bone induction means may have the same interval, but different intervals. may be formed. For example, the upper side may have a narrow interval but the lower side may have a wide interval, or vice versa.

The diameter (d3) of the disc-shaped bone guide means (13) is the same as or slightly less than the diameter (d4) of the preformed bone cavity (H2), through which the direction of insertion of the fixture is aligned with the formation direction of the bone cavity (H2). can guide you Here, "slightly smaller" means the degree to which the bone induction means 13 can be inserted in close contact without damaging the surface of the bone cavity during the insertion of the fixture. Preferably it is about 0.01 to 1 mm.

At this time, the maximum diameter d1 of the spiral bone fixation means 12 may be larger than the diameter d3 of the disk-shaped bone induction means 13 in the range of 0.1 mm to 0.5 mm.

Preferably, the maximum diameter d1 of the spiral bone fixation means 12 may be 0.3 mm larger than the diameter d3 of the disk-shaped bone guide means 13.

With this configuration, the outermost circumference of the spiral bone fixation means 12 can be offset 0.15 mm outward from the outermost circumference of the disk-shaped bone guide means 13.

The fact that the maximum diameter (d1) of the spiral bone fixation means (12) is larger in the range of 0.1 mm to 0.5 mm than the diameter (d3) of the disk-shaped bone guide means (13) reduces the initial fixation force of the fixture and the change in diameter of the fixture itself. As a value set in consideration, if the maximum diameter d1 of the spiral bone fixation means 12 is larger than 0.5 mm from the diameter of the disc-shaped bone induction means 13, it may be advantageous for the initial fixation force of the fixture, There is a problem that the diameter of the fixture itself becomes large, and on the contrary, when the difference between the maximum diameter (d1) of the spiral bone fixation means 12 and the diameter (d3) of the disk-shaped bone guide means 13 is less than 0.1 mm. The initial fixing force of the fixture may be weakened.

On the other hand, the induction space 15 refers to a space formed between adjacent disk-shaped bone induction means 13, and ossification can progress as the bone fills from the inner wall surface of the bone cavity H2 toward the induction space 15. have.

At this time, it is preferable that each of the plurality of disk-shaped bone induction means 13 is formed with the same diameter.

On the other hand, as shown in FIG. 7, when the plurality of disc-shaped bone induction means 13 have different diameters and the outermost circumference of the disc-shaped bone induction means 13 takes a stepped structure, the bone cavity H2 ) The distance w1 between the inner wall surface and each disc-shaped bone induction means 13 is gradually expanded or reduced, so that more homogeneous cortical bone formation can be induced in stages around the induction zone Z2.

In a preferred embodiment of the present invention, since the outermost circumference of each of the plurality of disc-shaped bone guidance means 13 is in uniform contact with the inner wall surface of the bone cavity H2, the volume of the guidance space 15 is uniform and Through this, it is possible to create an environment capable of inducing more homogeneous dense bone formation.

On the other hand, when ossification progresses into the induction space 15, the bones adhere to the surface of the core 11 and the disk-shaped bone induction means 13. In addition to the improvement of fixation power, it is possible to be freed from secondary infection caused by bacterial invasion that may occur later.

To this end, as shown in FIG. 5, the disk-shaped bone induction means 13 includes an upper inclined surface 16 that slopes downward toward the outside, a vertical surface 17 vertically extending downward from the upper inclined surface 16, and a vertical surface. It may be illustrated as including a lower inclined surface 18 inclined downward toward the core 11 side in (17).

The upper inclined surface 16, the vertical surface 17, and the lower inclined surface 18 constitute the outer surface of the disk-shaped bone induction means 13 and may be configured to be angled in contact with each other on a line that does not exert a wedge action on the alveolar bone.

If the upper and lower heights of the vertical surface 17 are not sufficiently secured or the angle between the upper inclined surface 16, the vertical surface 17 and the lower inclined surface 18 is formed sharply, the disk-shaped bone induction means (13) is configured sharply to apply a wedge action to the alveolar bone, causing a problem in that bone formation is delayed when an external force is applied to the fixture at the initial stage of implantation of the fixture.

The vertical plane may be formed in contact with the inner wall surface of the bone cavity as a plane parallel to the inner wall surface of the bone cavity.

At this time, the angle θ1 formed by the upper inclined surface 16 and the imaginary horizontal line is 21 °, and the angle θ2 formed by the lower inclined surface 18 and the virtual horizontal line is 5 °. It is preferable in that the action can be minimized, and in addition, it is more preferable in that the angle between the core 11 and the disc-shaped bone induction means 13 can be brought to an obtuse angle greater than 90°. .

If the angle θ3 between the corners of the core 11 and the disk-shaped bone induction means 13 is formed at an acute angle smaller than 90° or 90°, it is difficult for the bone to fully kick into the angle between the corners. A problem in which a gap is formed between the surface of the fixture and the alveolar bone may be caused.

Meanwhile, in the process of placing the fixture into the bone cavity H2, it may be difficult to determine whether the fixture is implanted deeper than expected or fixed to the desired depth in the bone cavity H2.

At this time, the implantation depth of the fixture can be visually grasped through the position of the disc-shaped bone guide means 13, and the fixture can be implanted at a planned depth without being undesirably deeply implanted.

To this end, the uppermost disc-shaped bone induction means 13 of the plurality of disc-shaped bone induction means 13 is in contact with the lower end of the shoulder part 20 and integrated with the shoulder part 20, so that the uppermost disc-shaped bone induction means (13) 13) can be configured to be used as a criterion for determining the implanted depth of the fixture.

For example, the plurality of disc-shaped bone guiding means 13 come into contact with the lower end of the shoulder part 20 and are integrated with the shoulder part 20 so that the implantation depth of the fixture can be grasped through the disc-shaped bone guiding means 13. It may include a disc-shaped bone guiding means 13 and a second disc-shaped bone guiding means 13 spaced downward from the first disc-shaped bone guiding means.

And, as shown in FIG. 8, in the case of the uppermost disk-shaped bone induction means 13, the upper inclined surface 16 may be omitted if necessary.

At this time, each of the plurality of disc-shaped bone induction means 13 has the same spacing as the inner wall surface of the bone cavity H2, but is formed with a smaller diameter than the diameter d4 of the bone cavity H2, or the lower disc-shaped bone. It may be configured such that its diameter gradually increases toward the induction means 13. That is, as described above, the distance w1 between the inner wall surface of the bone cavity H2 and each of the disc-shaped bone guidance means 13 is gradually expanded or reduced, resulting in a more homogeneous stepwise around the guidance section Z2. Cortical bone formation can be induced.

On the other hand, the surface of the fixture according to the present invention may be subjected to a blasting treatment with hydroxyapatite powder, followed by a surface treatment of coating the hydroxyapatite in a high-temperature plasma state.

Through this surface treatment, it is possible to improve mechanical properties such as strength of the fixture and securing an appropriate surface friction coefficient, and furthermore, it contributes to improving the success rate of implant surgery by improving the affinity between the different materials of bone and implant.

In summary, the spiral bone fixation means is placed on the inner wall of the bone cavity and acts as a wedge to the surrounding bone to ensure physical bonding force at the initial stage of implantation, and the disc-shaped bone guide means is in contact with the inner wall of the bone cavity, but Blood supply is smoothly performed without physical damage to the inner wall surface, so that bone recovery is rapidly induced and strong cortical bone is formed.

Therefore, since the fixture according to the present invention creates a spiral on the inner wall surface of the bone cavity by the spiral bone fixation means in the coupling section of the fixing part, it is strongly coupled to the alveolar bone to secure the initial fixation force, and at the same time, the fixture sinks, It can be free from jamming and misdirection, and in the induction section, the disk-shaped bone guide means is provided on the line that does not apply physical stimulation to the inner wall of the bone cavity, so there is no physical damage to the bone in the alveolar bone around the guide section of the fixing part. , Due to the advantage of smooth blood supply, bone recovery is rapidly induced and stronger cortical bone formation is possible, thereby shortening the overall implant procedure period and minimizing side effects that may occur after fixture placement.

The embodiments of the present invention described above are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. Therefore, it will be well understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and alternatives within the spirit and scope of the present invention as defined by the appended claims.

10: fixing unit
20: shoulder portion
Z1: coupling section
Z2: induction section
11: Core
12: spiral bone fixation means
13: disc-shaped bone induction means

Claims (10)

It includes a fixing part inserted into the bone cavity,
The fixing unit,
core;
bone fixation means formed on the outer lower side of the core;
Including a bone induction means formed on the upper part of the ball fixing means to the outer upper side of the core,
The bone fixing means is placed on the inner wall surface of the bone cavity to wedge the surrounding bones to ensure physical bonding force at the initial stage of implantation,
The bone induction means is a dental prosthetic fixture, characterized in that the blood supply is smoothly performed without physical damage to the inner wall of the bone cavity to quickly induce bone recovery and enable the formation of strong cortical bone. It includes a fixing part inserted into the bone cavity,
The fixing unit,
core;
a spiral bone fixation means formed in a spiral shape in the spiral section of the lower outer circumferential surface of the core and implanted in a screw fastening method on the inner wall surface of the bone cavity; and
Disc-shaped bone guide means protruding toward the inner wall surface of the bone cavity in the shape of a circular band in the guidance section of the upper outer circumferential surface of the core and having a smaller diameter than the maximum diameter of the spiral bone fixation means so as to come into contact with the inner wall surface of the bone cavity; A dental prosthetic fixture comprising a. According to claim 1 or claim 2,
The dental prosthesis fixture comprises a cone-shaped shoulder portion formed at an upper end of the fixing portion. The method of claim 2,
A dental prosthetic fixture according to claim 1 , wherein a plurality of disc-shaped bone guiding means are spaced apart from each other in the upper and lower directions to form a guiding space between adjacent disc-shaped bone guiding means. The method of claim 3,
The dental prosthetic fixture, characterized in that the uppermost disc-shaped bone guiding means among the plurality of disc-shaped bone guiding means comes into contact with the lower end of the shoulder part and is integrated with the shoulder part. The method of claim 2,
A dental prosthetic fixture, characterized in that the maximum diameter of the spiral bone fixation means is formed larger in the range of 0.1 mm to 0.5 mm than the diameter of the disk-shaped bone guide means. The method of claim 3,
The dental prosthetic fixture according to claim 1 , wherein each of the plurality of disc-shaped bone guidance means is formed to have the same diameter so as to have the same distance from the inner wall surface of the bone cavity. The method of claim 2,
The dental prosthetic fixture according to claim 1 , wherein each of the plurality of disc-shaped bone guide means has the same spacing as the inner wall surface of the bone cavity but has a smaller diameter than the diameter of the bone cavity. The method of claim 2,
The dental prosthetic fixture, characterized in that the diameter of each of the plurality of disc-shaped bone guiding means gradually increases toward the lower disc-shaped bone guiding means. The fixture of claim 1 implanted into a bone cavity;
an abutment coupled to an upper end of the fixture; and
A dental implant comprising a; crown coupled to the outside of the abutment and having a tooth shape.

Images