KR102599230B1 - Implant fixture having fine grooves - Google Patents

Abstract

A dental implant fixture having a fine groove formed in a screw portion of the fixture is disclosed. A dental implant fixture with fine grooves according to an embodiment of the present invention has a plurality of fine grooves that cross the upper and lower ends of the outer end of the screw thread of the dental implant fixture in a straight line parallel to or along the length of the body. It can be formed at an angle with respect to the direction.

Description

Dental implant fixture having fine grooves}

The present invention relates to a dental implant fixture, and more specifically, to a dental implant fixture having a micro groove formed in the screw portion of the fixture.

An implant, generally used in dentistry, refers to implanting a metal in the form of a tooth root into the jaw bone in an area where a tooth has been partially or completely lost in the oral cavity, allowing it to adhere to the bone and then forming a tooth.

The procedure for artificial teeth using implants first involves drilling and tapping the alveolar bone to form a groove that matches the size of the implant, and then attaching a fixture mount to the top of the implant. Afterwards, the implant fixture is implanted into the alveolar bone using a surgical hand piece, and then the fixture mount is removed from the implant. The first surgery is then completed by fastening the cover screw to the top of the implant and suturing the implant. The cover screw serves to prevent bacteria and foreign substances remaining in the oral cavity from invading the inside of the implant while waiting for osseointegration of the implant. The osseointegration period varies somewhat depending on the patient's bone quality and implant location, but generally takes 3 to 5 months.

Afterwards, through a second surgery, the gums are opened to expose the cover screw, the degree of osseointegration of the implant is checked, and the cover screw is removed. Next, a healing cap is fastened to the top of the implant to prevent the gum from covering the space where the artificial tooth will be located and to form an aesthetic gum, and wait for a certain period of time. Finally, after confirming aesthetic gum formation, the healing cap is removed, and an impression coping is fastened to the top of the implant to fabricate a prosthesis.

Subsequently, a preliminary impression is taken in the oral cavity using impression material, and the coping for the impression is removed. Through this, the abutment and prosthesis are completed, the abutment is fastened to the top of the implant, and the prosthesis is fixed on the abutment to complete the artificial tooth.

However, the dental implant fixture according to the prior art has a structure in which a screw is formed in the body and cannot bring about significant changes, and the structure that improves stability also has limitations.

Registered Patent 10-2059302

According to the present invention, an object of the present invention is to provide a dental implant fixture with fine grooves that can improve the feeling of placement and improve initial and long-term stability by increasing the surface area with bone quality.

A dental implant fixture with micro grooves according to one aspect of the present invention has a plurality of micro grooves that cross the upper and lower ends of the outer ends of the screw threads of the dental implant fixture in a straight line parallel to the longitudinal direction of the body or along the length of the body. It can be formed at an angle with respect to the direction.

At this time, the dental implant fixture is divided into a plurality of sections in the longitudinal direction, and a plurality of micro grooves formed in each section may have different inclinations.

At this time, in the dental implant fixture, the micro groove formed in the lower section of the first height may be formed at an angle greater than the micro groove formed in the upper section of the first height with respect to the horizontal line perpendicular to the longitudinal direction.

At this time, the first height may be a point where the diameter of the body begins to decrease linearly.

At this time, the fine groove may be formed only in the lower section of the first height.

At this time, the fine grooves formed in the lower section may be at an angle of 90 degrees with respect to the horizontal line, and the fine grooves formed in the upper section may be inclined between 44 and 50 degrees with respect to the horizontal line.

At this time, the depth of the fine groove may be 50% or less of the height of the screw thread.

At this time, the upper section of the first height may have a surface area where fine grooves are formed of 10% or less relative to the surface area of the end of the screw thread, and the lower section of the first height may have a surface area of 40% or less.

According to the above configuration, the dental implant fixture with fine grooves according to the present invention can improve initial and long-term stability by improving the insertion feeling and increasing the contact surface area with bone.

Figure 1 is a cross-sectional view of an artificial tooth treatment site to which a dental implant fixture with fine grooves according to an embodiment of the present invention is applied.
Figure 2 is an enlarged front view of a portion of a dental implant fixture with fine grooves according to an embodiment of the present invention.
Figure 3 is an enlarged view of the thread portion of a dental implant fixture with micro grooves according to an embodiment of the present invention.
Figure 4 is a front view of a dental implant fixture with micro grooves according to an embodiment of the present invention.
Figure 5 is an enlarged plan view of a screw thread that is part of a dental implant fixture with fine grooves according to an embodiment of the present invention.

The words and terms used in this specification and claims are not to be construed as limited in their usual or dictionary meanings, but according to the principle that the inventor can define terms and concepts in order to explain his or her invention in the best way. It must be interpreted with meaning and concepts consistent with technical ideas.

Therefore, the embodiments described in this specification and the configuration shown in the drawings correspond to a preferred embodiment of the present invention, and do not represent the entire technical idea of the present invention, so the configuration may be replaced by various alternatives at the time of filing of the present invention. There may be equivalents and variations.

In this specification, terms such as “comprise” or “have” are intended to describe the existence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to describe the presence of one or more other features. It should be understood that it does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

A component being “in front,” “rear,” “above,” or “below” another component means that it is in direct contact with the other component, unless there are special circumstances. This includes not only those placed at the “bottom” but also cases where another component is placed in the middle. In addition, the fact that a component is "connected" to another component includes not only being directly connected to each other, but also indirectly connected to each other, unless there are special circumstances.

Hereinafter, a dental implant fixture with fine grooves according to the present invention will be described with reference to the drawings.

A cross-section of a tooth after an implant procedure to which a dental implant fixture with fine grooves according to an embodiment of the present invention is applied is shown in Figure 1.

Referring to FIG. 1, the implant fixture 20 is properly treated and fixed to the skin 10 inside the gum 11, and the abutment 40 is attached to the upper part of the implant fixture 20 with a screw 30. ) is combined and fixed by. The screw 30 is screwed into the abutment fastening hole 20a inside the implant fixture 20, thereby tightly fixing the abutment 40 to the implant fixture 40. An artificial tooth 50 is coupled to the upper part of the abutment 40, and the artificial tooth 50 is firmly supported by the abutment 40. In this way, since the artificial tooth 50 and the abutment 40 are all supported by the implant fixture 20 that is embedded and coupled to the bone 10, the implant fixture 20 is firmly coupled to the bone 10. This plays a very important role in implant surgery.

That is, referring to FIGS. 1 to 5, the dental implant fixture 20 having a fine groove according to an embodiment of the present invention has an abutment fastening hole 20a formed by opening the upper part of the body 21. It relates to a dental implant fixture (20) in which an abutment (40) is inserted and seated and fixed by a screw (30), and a screw for engaging the alveolar bone is formed on the outer surface, wherein the dental implant fixture (20) ) may be formed parallel to the longitudinal direction of the body 21 or inclined with respect to the longitudinal direction.

At this time, referring to FIG. 4, the dental implant fixture 20 is divided into a plurality of sections (A, B) in the longitudinal direction, and a plurality of fine grooves 22a formed in each section have different slopes. You can have

At this time, referring to FIGS. 3 and 4, the dental implant fixture 20 has a fine groove 22a formed in the lower section A of the first height with respect to the horizontal line perpendicular to the longitudinal direction. The inclined angle θ may be formed larger than that of the fine groove 22a formed in the upper section B of the height.

At this time, the first height may be a point where the diameter of the body 21 begins to linearly decrease. Here, a plurality of main cutting edges may be formed from the lower end of the implant fixture 20 to a position higher than the first height. That is, the fine groove 22a can be formed by forming a previously normally formed main cutting edge, and its height can be formed higher than the first height.

At this time, the fine groove 22a may be formed only in the lower section A of the first height. By doing this, the purpose of securing friction and cutting role in the initial stage and securing torque in the upper section (B) after insertion can be achieved.

At this time, referring to FIG. 4, the fine grooves 22a formed in the lower section (A) are formed at an angle of 90 degrees with respect to the horizontal line, and the fine grooves 22a formed in the upper section (B) are formed at an angle of 44 degrees to the horizontal line. - Can be tilted between 50 degrees. As mentioned above, the main purpose of the lower section (A) is to secure friction and cutting role, and the upper section (B) is to secure the holding force and torque.

At this time, referring to FIG. 5, the depth of the fine grooves 22a and 22a' may be 50% or less of the height of the screw thread 22. This is because if it is formed at more than 50%, it is difficult to expect the desired function due to the formation of fine grooves 22a.

At this time, the upper section (B) of the first height has a surface area in which the fine grooves (22a) are formed is 40% or less with respect to the surface area of the end of the screw thread (22), and the lower section (A) of the first height is 10% or less. You can. This is because, as mentioned above, the purpose is to secure friction and cutting role at the beginning of installation, and to secure fixing torque after installation.

Referring to Figure 2, on the outer surface of the screw thread 22 of the implant fixture 20 according to an embodiment of the present invention, a plurality of fine grooves 22a are inclined at a certain angle with respect to the horizontal line perpendicular to the longitudinal direction at a certain distance. are formed. The fine grooves 22a are formed to be inclined in the same direction as the spiral direction, and thus assist the implant fixture 20 to receive force in the same direction in which it is inserted during installation. The fine grooves 22a may be manufactured by scraping the surface of the screw thread 22 in a straight line using a tool.

Referring to FIG. 3, a portion of the screw thread 22 of the implant fixture 20 according to an embodiment of the present invention is shown enlarged. As shown, the screw threads 22 are inclined along the spiral direction with respect to the horizontal line, and the fine grooves 22a are all formed inclined with respect to the horizontal line in the same direction.

Referring to Figure 4, the front of the implant fixture 20 according to an embodiment of the present invention is shown, and the fixture 20 is standing vertically along the longitudinal direction. The fixture 20 can be divided into an upper section, B section, and a lower section, A section, based on the first height. At this time, section A is a portion where the diameter of the body 21 rapidly decreases linearly, and is the location where implantation begins. In section A, the angle between the fine grooves 22a and the horizontal line is formed at 90 degrees, and in section B beyond that, it is formed at about 45 degrees. That is, in section A, the cutting force for initial placement is increased and acts in a direction parallel to the longitudinal direction. In section B, the fine grooves 22a are formed at an angle, which serves to secure the fixing torque after implantation. Meanwhile, in Figure 4, in addition to the fine groove 22a, a previously formed main cutting edge cut at a right angle may also be formed. Of course, as described above, the main cutting edge may extend from a position higher than the first height to near the lower end.

Referring to Figure 5, it shows that fine grooves 22a and 22a' are formed on the screw thread 22 of the implant fixture 20 according to an embodiment of the present invention. As shown, the fine grooves 22a and 22a' may be formed to have various depths as described above with respect to the height of the screw thread 22, but are limited to 50% or less of the total height of the screw thread 22. must be formed. This is because the action is similar even if it is formed more than that. In other words, even if the depths of the fine grooves 22a on the left and the fine grooves 22a' on the right are different, their actions are similar in the end, so there is no need to make any further incisions. In addition, as described above with respect to the surface area of the fine groove 22a, the upper section of the first height has a surface area where the fine groove 22a is formed is 10% or less with respect to the outer surface area of the end of the screw thread 22, and the first It is desirable that the lower section of the height is formed at 40% or less. Here, the surface area refers to the surface area of the outer end of the screw thread 22, and only the cut surface area is compared regardless of the depth of the cut portion of the fine groove 22a.

Although the embodiments of the present invention have been described, the spirit of the present invention is not limited to the embodiments presented in this specification, and those skilled in the art who understand the spirit of the present invention can add or change components within the scope of the same spirit. , deletion, addition, etc., other embodiments can be easily proposed, but this will also be said to fall within the scope of the present invention.

10: Bone quality
11: Gum 20: Implant fixture
20a: Abutment fastening hole 21: Body
22: thread 22a, 22a': fine groove
30: screw 40: abutment
50: artificial teeth

Claims (8)

A plurality of fine grooves that cross the upper and lower ends of the outer end of the screw thread of the dental implant fixture in a straight line are formed at an angle with respect to the longitudinal direction of the body, and the plurality of fine grooves have a square cross-section perpendicular to the cutting direction. It is cut to form
The dental implant fixture is divided into a plurality of sections in the longitudinal direction, and a plurality of micro grooves formed in each section have different inclinations,
The dental implant fixture has a fine groove formed in the lower section of the first height with respect to a horizontal line perpendicular to the longitudinal direction, and has a larger inclined angle than the micro groove formed in the upper section of the first height,
The fine grooves formed in the lower section are at an angle of 90 degrees to the horizontal line, and the fine grooves formed in the upper section are inclined between 44 and 50 degrees to the horizontal line, so that the lower section secures friction and cutting role, and the upper section secures the fixing force torque,
A dental implant fixture with fine grooves, wherein the upper section of the first height has a surface area where the fine grooves are formed less than 10% of the surface area of the end of the screw thread, and the lower section of the first height has a surface area of 40% or less. delete delete According to claim 1,
A dental implant fixture having a fine groove, wherein the first height is a point at which the diameter of the body begins to linearly decrease. delete delete According to claim 1,
A dental implant fixture having fine grooves, wherein the fine grooves have a depth of 50% or less of the height of the screw thread. delete

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