TWI541009B - Dental implant fixture - Google Patents

Description

Implant fixture

The present invention relates to a dental implant fixture, and more particularly to an implant fixture that can be implanted while fully utilizing a coronal bone having an upper end and a lower end. The upper end portion forms a thin ridge portion which forms a base bone which is relatively larger than one of the thin ridge portions, thereby ensuring structural stability as an artificial root.

Primitive implantation means replacement to support repair and acts as a missing tissue for the human body, but implanted dentistry refers to a series of surgical procedures for implanting artificial teeth.

In other words, implantation refers to a series in which a fixation made of titanium or the like which is not repelled by the human body is implanted in the alveolar bone without teeth to replace the missing root, and then the artificial tooth is placed to restore the function of the tooth. Dental surgery.

While a typical prosthesis or denture will damage adjacent teeth and bones over time, the implant does not damage adjacent tooth tissue and also has the same function or shape as the original tooth without creating any cavities. Therefore, the implant has the advantage of being semi-permanently used.

In an artificial dental surgery (ie, an implant, also referred to as an implant procedure), a drill is used to perforate an implant site and the fixture is implanted in a cogging The bone is fused into a bone to form an artificial root. Then, an abutment is joined to the fixture and the stent is covered with a final crown to complete the implantation procedure.

This implant will promote the function of artificial teeth for some and all patients without teeth. And the repair of a single missing tooth, and improve the aesthetic aspect of prosthetic repair. In addition, the implant will disperse excessive stress applied to adjacent supporting bone tissue and help stabilize the dentition.

Fixtures to be implanted first during an implant procedure are typically made in a shape similar to a slotted screw and are classified into small, standard, and large sizes.

Therefore, the surgeon selects the specification of the fixture based on the shape of the alveolar bone, the shape around the alveolar bone where the fixation is to be implanted, the space, and the like.

At the same time, a fixture of only a different size but having a substantially slotted screw shape is typically applied to a patient having a typical oral structure, particularly one having a wider ridge in which the upper end of the alveolar bone is wider.

However, if the alveolar bone is abnormal, for example, if the upper end of the alveolar bone is narrow (that is, a thin ridge is formed but the base bone at the lower end is as wide as normal), it is difficult to ensure structural stability of the general fixture. .

In other words, if the alveolar bone has a thin ridge at its upper end and the base portion of the lower ridge is formed to be wider than the thin ridge, a fixture must make full use of the alveolar bone according to the shape of the alveolar bone to ensure As a structural stability of artificial roots. However, this fixture has not yet been developed and therefore needs to be researched and developed.

The present invention provides an implant fixture that can be implanted while fully utilizing a coronal bone having an upper end portion and a lower end portion, the upper end portion forming a thin ridge portion, the lower end portion being formed Relatively larger than one of the thin ridges of the base bone, thereby ensuring structural stability as an artificial root.

According to an aspect of the present invention, a dental implant fixture is provided, the dental implant fixture The method comprises: a body portion including a head on one side; an initial implant portion formed on an outer surface of the other end portion of the body portion and first implanted in the alveolar bone In one of the thin ridges, the alveolar bone includes an upper end portion and a lower end portion, the upper end portion forming the thin ridge portion, the lower end portion forming a base bone relatively larger than the thin ridge portion; and a thread The portion is threaded on an outer surface of the body portion and includes a thread, the height of the thread gradually increasing from the head toward the initial implant portion.

The threaded portion may include: an upper threaded portion adjacent to the head; a lower threaded portion adjacent to the initial implant portion; and a plurality of connecting threaded portions continuously connecting the upper threaded portion and the lower threaded portion.

A virtual outer trace connecting the end of the upper threaded portion, the end of the connecting threaded portion and the end of the lower threaded portion has a trapezoidal pattern.

The thickness of the thread may gradually decrease from the upper threaded portion toward the lower threaded portion.

The body portion can have a taper shape that tapers from the head toward the initial implant portion.

The initial implant portion can include a sharpened portion that is sharpened at the other end of the body portion and that is used to guide an implantation location in the thin ridge.

The initial implant portion may further include an initial implant thread portion, one side of the initial implant thread portion being connected to the sharp portion for guiding the implant portion, and the other side being threadedly disposed on the body The outer surface of the portion is connected to the threaded portion.

The body portion can have a straight type from the head toward the initial implant portion, the straight pattern having a diameter.

The body portion may have a cone type, the cone type is straight The diameter gradually increases from the head toward the initial implant portion.

The dental implant fixture may further include all of the blade portions, the cutting edge portion being formed in the threaded portion.

The cutting edge portion may be formed in the threaded portion and inclined toward one side with respect to one longitudinal direction of the body portion.

The cutting edges may be symmetrically formed with respect to the body portion at opposite sides of the body portion.

The head may have one of an inner type head or an outer type head in which an area of a seat is embedded and coupled, and the branch is embedded and coupled in the outer type head The region of the seat and the outer head has a projection that projects upwardly from a top surface.

1‧‧‧ alveolar bone

1a‧‧‧Upper

1b‧‧‧Bone bone

2‧‧‧ alveolar bone

2a‧‧‧thin ridge

2b‧‧‧Bone bone

100‧‧‧Fixed objects

110‧‧‧ Body Department

111‧‧‧ head

130‧‧ Thread Department

131a‧‧‧Threaded Department

131c‧‧‧Threaded Department

121‧‧‧ Sharpening Department

122‧‧‧Investigation of the initial thread

120‧‧‧Initial Implant Department

200‧‧‧ implant fixture

211‧‧‧ head

210‧‧‧ Body Department

220‧‧‧Initial Implant Department

300‧‧‧ implant fixture

311‧‧‧ head

310‧‧‧ Body Department

320‧‧‧Initial Implant Department

T1‧‧‧ thickness

T2‧‧‧ thickness

The exemplary embodiments of the present invention will be more clearly understood from the following detailed description of the drawings, wherein: FIG. 1 is a view showing a general alveolar bone; and FIG. 2 is a view showing a first embodiment according to the present invention. For example, a view of the alveolar bone in which one of the dental implants is implanted; FIG. 3 is a view showing that the dental implant according to the first embodiment of the present invention is implanted in the alveolar bone shown in FIG. a view of one state; Fig. 4 is an enlarged view of one of the dental fixtures of Fig. 2; Fig. 5 is a plan view of Fig. 4; and Fig. 6 is a view showing a second embodiment according to the present invention a view of one of the states in which the dental implant is implanted in the alveolar bone; Fig. 7 is an enlarged view of one of the dental implants of Fig. 6; Fig. 8 is a plan view of Fig. 7; and Fig. 9 is a view showing the dental implant according to a third embodiment of the present invention. A view of one state implanted in the alveolar bone; Fig. 10 is an enlarged view of one of the dental implant fixtures of Fig. 9; and Fig. 11 is a plan view of Fig. 10.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG

Hereinafter, the present invention will be explained in detail by explaining various embodiments of the present invention with reference to the attached drawings. The same reference numerals in the drawings denote the same elements.

1 is a view showing a general alveolar bone, and FIG. 2 is a view showing a alveolar bone in which a dental implant fixture is implanted in accordance with a first embodiment of the present invention.

In the case of the alveolar bone 1 shown in Fig. 1, an upper end portion 1a is wide, and the base bone 1b of the lower end portion is also wide.

Figure 1 shows a typical alveolar bone 1 of a typical patient. When an artificial root is formed in this alveolar bone 1, a fixture (not shown) that is shaped like a typical slotted screw is utilized. That is, a typical fixture (not shown) selected from small, standard, and large specifications is implanted into the alveolar bone 1 of Fig. 1 and then used as an artificial root.

However, in the case of one of the agglomerates 2 which is somewhat abnormal as shown in Fig. 2, the above-described fixture (not shown) which is shaped like a typical slotted screw cannot be utilized.

In other words, as shown in Fig. 2, on one having a thin ridge 2a formed In the case of the end portion and the alveolar bone 2 forming a lower end portion than one of the base bones 2b of the thin ridge portion 2a, a fixture 100 (see Fig. 3) must make full use of the alveolar bone 2 Implanted to ensure structural stability as an artificial root.

Therefore, the fixture 100 (see Fig. 3) implanted in the alveolar bone 2 and forming the artificial root as shown in Fig. 2 must have a typical fixture that is shaped like a slotted screw (see Not shown) different structures. The fixture 100 will be explained with reference to Figs. 3 to 5.

Fig. 3 is a view showing a state in which the dental implant according to the first embodiment of the present invention is implanted in the alveolar bone shown in Fig. 2, and Fig. 4 is a dental fixation shown in Fig. 2. One of the enlarged views, and the fifth drawing is a plan view of Fig. 4.

As shown herein, the dental implant fixture 100 according to an embodiment of the present invention can be implanted while fully utilizing the alveolar bone, the alveolar bone having an upper end portion forming a thin ridge 2a and formed to be relatively wider than The lower end of the base bone 2b of the thin ridge 2a, and thus the structural stability as an artificial root. The dental implant fixture 100 includes a body portion 110 and a threaded portion 130.

The body portion 110 forms a center post in the fixture 100 according to this embodiment. The body portion 110 has an approximately straight stem.

In the fixture 100 according to this embodiment, the body portion 110 is tapered at an angle along a length direction.

In other words, the body portion 110 is fabricated as a tapered shape that tapers from a head portion 111 toward an initial implant portion 120. If the body portion 110 is manufactured to have such a shape, it is advantageous to facilitate the implantation of the fixture 100.

For reference, the cross section of the body portion 110 may have a diameter ranging from about 5 mm to 8 mm, but is not limited thereto.

The body portion 110 is formed with a head portion 111 on one side thereof. The head portion 111 is formed at an upper end portion of the body portion 110 and is intended to be coupled to a seat (not shown).

The head 111 may have one of an inner type head or an outer type head in which an area of the holder is embedded and coupled, and the outer type head is embedded and coupled with the The region of the support and the outer head has a projection that projects upwardly from a top surface.

In this exemplary embodiment, the aforementioned inner type head 111 is used, but is not limited thereto. Alternatively, an external type head (not shown) may be employed.

The body portion 110 is formed with an initial implant portion 120 on one side opposite to the head portion 111. In other words, the initial implant portion 120 is formed on one of the outer surfaces of the other side end of the body portion 110 and is used as one of the thin ridges 2a to be implanted first in the alveolar bone, the cogging The bone includes an upper end portion which forms a thin ridge portion 2a and an lower end portion of the base bone 2b which is formed to be larger than the thin ridge portion 2a.

The initial implant portion 120 includes a sharpening portion 121 for guiding an implantation position, and an initial implant thread portion 122.

The sharpening portion 121 for guiding the implantation position is sharpened at the other end of the body portion 110 and serves to guide the implantation position of the thin ridge 2a. In contrast to a general fixture (not shown), the ends of the fixture 100 are sharpened.

One side of the initial implant thread portion 122 is connected to the sharpening portion 121 for the implantation position, and the other side is threadedly disposed on the outer surface of the body portion 110 and connected to one of the threaded portions 130c of the threaded portion 130.

At the same time, the threaded portion 130 is formed in a thread shape on the outer surface of the body portion 110. In this exemplary embodiment, the threaded portion 130 has a thread having a height from one of the heads 111 The area gradually increases toward the initial implant portion 120.

The threaded portion 130 includes an upper threaded portion 131a adjacent to the head portion 111, a lower threaded portion 131c adjacent to the initial implant portion 120 (ie, continuously connected to the initial implanted thread portion 122), and a continuously threaded portion 131a A plurality of connecting screw portions 131b are connected to the lower thread portion 131c.

Each of the upper threaded portion 131a and the lower threaded portion 131c refers to a line located at a corresponding position, and the connecting thread portion 131b refers to a plurality of lines between the upper threaded portion 131a and the lower threaded portion 131c. In this embodiment, the connecting thread portion 131b includes a total of eight lines, but is not limited thereto. Alternatively, the connecting thread portion 131b may be less than or more than eight lines.

Therefore, the threaded portion 130 can be realized in the form of the upper threaded portion 131a, the plurality of connecting threaded portions 131b, and the lower threaded portion 131c. In this embodiment, the upper threaded portion 131a, the plurality of connecting thread portions 131b and the lower threaded portion 131c are connected at their ends by a virtual outer trajectory forming a trapezoidal pattern.

When the end portion of the upper threaded portion 131a, the end portion of the plurality of connecting thread portions 131b, and the virtual outer track of the end portion of the lower thread portion 131c form a trapezoidal pattern, the fixture 100 can make full use of the alveolar bone 2 Implanted into the alveolar bone 2 to ensure structural stability as an artificial root.

The screw portion 131a, the plurality of connecting screw portions 131b and the lower thread portion 131c, and the upper thread portion 131a constituting the screw portion 130 indicate that the thicknesses t1 and t2 of the thread gradually decrease toward the lower thread portion 131c. With this structure, it is easy to implant and ensure structural stability.

Meanwhile, although not shown in the drawings, the threaded portion 130 may further include all of the blades.

The cutting edge has a sharpened end to make the fixture 100 easier to implant.

The cutting edge portion may be formed along the longitudinal direction of the body portion 110 and inclined toward one side. In this case, the cutting edges may be formed symmetrically with respect to the body portion 110 at opposite sides of the body portion 110.

Of course, the above is not intended to limit the scope of the inventive concept. That is, the cutting edges are not necessarily symmetrically formed at opposite sides of the body portion 110.

Next, an implantation procedure using the fixture 100 having such a structure will be schematically explained.

First, a hole is punched in the implantation position by a predetermined drilling machine. Then, as shown in Fig. 3, the fixture 100 according to this embodiment is placed at the implantation position and implanted in the implantation position of the thin ridge 2a of the alveolar bone 2.

Although the alveolar bone 2 in this embodiment has an upper end portion which forms a thin ridge portion 2a and a lower end portion of the base bone 2b which is formed to be relatively wider than the thin ridge portion 2a, the fixture 100 in this embodiment can be easily implanted. Entering into the alveolar bone 2 and ensuring structural stability as an artificial root after implantation, because the fixed object has an end portion connecting the upper threaded portion 131a, an end portion of the plurality of connecting thread portions 131b, and a lower thread portion The virtual outer track of the end of 131c has a trapezoidal pattern and has a tapered body portion 110.

After the time for fused the fully implanted fixture 100 into a bone has elapsed, the stent is joined to the head 111 of the fixture 100 and the stent is covered with a final crown to complete the implantation procedure.

With the above structure and surgery, the fixture 100 according to an exemplary embodiment can be implanted while making full use of the alveolar bone 2 in this embodiment, the alveolar bone having an upper end portion forming a thin ridge 2a and The lower end portion of the base bone 2b which is relatively wider than the thin ridge portion 2a is formed, thereby ensuring structural stability as an artificial root.

Fig. 6 is a view showing a state in which the dental implant according to a second embodiment of the present invention is implanted in the alveolar bone, and Fig. 7 is an enlarged view of one of the dental implants of Fig. 6. And Fig. 8 is a plan view of Fig. 7.

In this embodiment, a dental implant fixture 200 also includes a body portion 210 having a head portion 211 and an initial implant portion 220, and a threaded portion 130.

As in the above embodiment, the threaded portion 130 includes an upper threaded portion 131a, a plurality of connecting threaded portions 131b, and a lower threaded portion 131c.

The end portion of the upper threaded portion 131a, the end portion of the plurality of connecting screw portions 131b, and the end portion of the lower threaded portion 131c are connected by a virtual outer trajectory having a trapezoidal pattern. Further, the thickness t1, t2 (see Fig. 4) of one thread gradually decreases from the upper thread portion 131a toward the lower thread portion 131c.

With such a configuration, the body portion 210 has a straight type in which the diameter thereof is uniform from the head portion 211 toward the initial implant portion 220.

Although the fixture 200 in this embodiment has a straight body portion 210, in this embodiment the fixture can be implanted while making full use of the alveolar bone 2, which has a thin ridge 2a. The upper end portion and the lower end portion of the base bone 2b which is relatively wider than the thin ridge portion 2a are formed to further ensure structural stability as an artificial root.

Fig. 9 is a view showing a state in which the dental implant according to a third embodiment of the present invention is implanted in the alveolar bone, and Fig. 10 is an enlarged view of one of the dental implants of Fig. 9. And Fig. 11 is a plan view of Fig. 10.

In this embodiment, a dental implant fixture 300 also includes a body portion 310 having a head portion 311 and an initial implant portion 320, and a threaded portion 130.

As in the above embodiment, the threaded portion 130 includes an upper threaded portion 131a, a plurality of connecting threaded portions 131b, and a lower threaded portion 131c.

The end portion of the upper threaded portion 131a, the end portion of the plurality of connecting screw portions 131b, and the end portion of the lower threaded portion 131c are connected by a virtual external trajectory having a trapezoidal pattern. Further, the thickness t1, t2 (see Fig. 4) of the thread gradually decreases from the upper thread portion 131a toward the lower thread portion 131c.

With such a configuration, the body portion 310 has a conical pattern in which its diameter becomes larger from the head portion 311 toward the initial implant portion 320.

Although the fixture 300 in this embodiment has a conical body portion 310, the fixture can be implanted while making full use of the alveolar bone 2 in this embodiment, the alveolar bone having a thin ridge 2a formed The upper end portion and the lower end portion of the base bone 2b which is relatively wider than the thin ridge portion 2a are formed to further ensure structural stability as an artificial root.

According to an embodiment of the present invention, a dental implant can be implanted while fully utilizing a coronal bone having an upper end portion and a lower end portion, the upper end portion forming a thin ridge portion. The lower end portion forms a base bone that is relatively larger than one of the thin ridges, thereby ensuring structural stability as an artificial root.

While the invention has been shown and described with reference to the exemplary embodiments of the present invention, it should be understood that

2‧‧‧ alveolar bone

2a‧‧‧thin ridge

2b‧‧‧Bone bone

100‧‧‧Fixed objects

Claims (11)

A dental implant fixture comprising: a body portion including a head on one side; an initial implant portion formed on an outer surface of the other end of the body portion and first implanted Entering into a thin ridge of one of the alveolar bones, the alveolar bone includes an upper end portion and a lower end portion, the upper end portion forming the thin ridge portion, and the lower end portion is formed to be relatively larger than the thin ridge portion a basal bone; and a threaded portion formed on the outer surface of the body portion in a spiral shape and including a thread, the height of the thread gradually increasing from the head toward the initial implant portion The threaded portion includes: an upper threaded portion adjacent to the head portion; a lower threaded portion adjacent to the initial implant portion; and a plurality of connecting thread portions continuously connecting the upper threaded portion and the lower threaded portion; wherein A virtual outer trajectory of the end of the upper threaded portion, the end of the connecting threaded portion, and the end of the lower threaded portion has a trapezoidal pattern. The dental implant of claim 1, wherein the thickness of the thread gradually decreases from the upper threaded portion toward the lower threaded portion. The dental implant of claim 1, wherein the body portion has a taper shape that tapers from the head toward the initial implant portion. The dental implant of claim 1, wherein the initial implant portion includes a sharpened portion that is sharpened at the other end of the body portion and used to guide the thin ridge An implant location in the department. The dental implant of claim 4, wherein the initial implant further comprises an initial Initially implanting a threaded portion, one side of the initial implanted threaded portion being connected to the sharpening portion for guiding the implanted position, and the other side being helically disposed on the outer surface of the body portion and The threaded parts are connected. The dental implant of claim 1, wherein the body portion has a straight type from the head toward the initial implant portion, the straight form having a diameter. The implant fixture of claim 1, wherein the body portion has a cone type, one of the diameters of the cone pattern gradually increasing from the head toward the initial implant portion. The dental implant fixture according to claim 1, further comprising a blade portion formed in the threaded portion. The dental implant of claim 8, wherein the cutting edge portion is formed in the threaded portion and inclined toward one side with respect to a longitudinal direction of the body portion. The dental implant of claim 9, wherein the cutting edge portion is symmetrically formed with respect to the body portion at opposite sides of the body portion. The dental implant of claim 1, wherein the head has one of an inner head or an outer head, and one of the abutments is embedded and coupled in the inner head. In the region, the region of the mount is embedded and coupled in the outer head and the outer head has a projection that projects upwardly from a top surface.