Dental implant capsule unit and plasma surface treatment apparatus using same

Abstract

The present invention relates to a dental implant capsule unit and a plasma surface treatment apparatus using same and, more specifically, to a capsule unit configured to enable the plasma surface treatment of a dental implant in a packaged state, and a plasma surface treatment apparatus which uses same and can be easily used by anyone.

Description

Dental implant capsule unit and plasma surface treatment device using the same

[0001] The present invention relates to a dental implant capsule unit and a plasma surface treatment device using the same, and more particularly, to a capsule unit that enables plasma surface treatment of a dental implant in its packaged state, and a plasma surface treatment device that can be easily used by anyone using the same.

[0002] In general, a dental implant is a dental procedure that refers to a replacement for a lost natural tooth or to restore the original function of a tooth by implanting an artificial tooth.

[0003] While conventional prosthetics and dentures can damage the surrounding teeth and bone over time, implants preserve the surrounding dental tissues. They function and resemble natural teeth, yet are immune to decay, offering the advantage of semi-permanent use. Furthermore, implants not only restore single missing teeth, but also enhance the functionality of dentures in patients with partial or complete edentulism, while also improving the aesthetics of dental prosthetics. Furthermore, they can help stabilize the dentition by dispersing excessive stress on the surrounding bone tissue.

[0004] These implants generally include a fixture that is implanted into the alveolar bone, an abutment that is connected to the fixture, an abutment screw that secures the abutment to the fixture, and an artificial tooth (crown) that is connected to the abutment.

[0005] Typically, the implant procedure involves a first procedure to implant a fixture into the alveolar bone, a second procedure to fix an artificial tooth (crown) after waiting for the fixture to be osseointegrated into the alveolar bone (3 to 6 months).

[0006] Among dental implants, the fixture is the component implanted into the alveolar bone and serves as an artificial tooth root. Therefore, the material used for the fixture must be highly biocompatible and stable with human tissue, as well as non-reactive chemically or physiologically and non-rejectable. Furthermore, the fixture must exhibit high mechanical strength to prevent deformation or fracture even under repeated loads and momentary pressures, necessitating the selection of an appropriate material. Currently, titanium or titanium alloys are commonly used as such materials.

[0007] However, titanium and its alloys themselves have the drawback of requiring a long period of time for osseointegration. To address this shortcoming, a hydrophilic oxide film is formed on the surface of titanium or its alloys to enhance osseointegration.

[0008] These fixtures are safe to use immediately after manufacturing. However, over time, during distribution or hospital storage, the surface can become contaminated with organic matter, or carbon in the air can bind to the oxide film, reducing the fixture's surface hydrophilicity. This phenomenon is called biological aging. If the fixture's hydrophilicity declines, its ability to achieve osseointegration in the early stages of implantation is significantly reduced.

[0009] Accordingly, a technology for surface treating dental implants with plasma has been developed and is being used.

[0010] Korean Patent No. 10-2351510 discloses a plasma dental implant encapsulation device.

[0011] The above encapsulation device has the advantage of having a very short surface treatment time and no secondary contamination problem, as it treats the surface of the implant by applying plasma while the implant is packaged.

[0012] However, the implants housed within the packaging capsule are not securely fixed, which can lead to the implants shaking or shifting within the capsule. Furthermore, the first electrode section, installed around the packaging capsule, is positioned away from the capsule, making it unfavorable for plasma discharge. Furthermore, the second electrode section, which electrically connects to the implant, has a very complex and inefficient configuration.

[0013] The present invention was created to improve the above problems, and its purpose is to provide a dental implant capsule unit in which the structure of a packaging capsule containing an implant is improved so that the implant can be firmly fixed within the packaging capsule, and the electrode structure is improved so that the efficiency of plasma discharge can be increased.

[0014] In addition, the purpose of the present invention is to provide a plasma surface treatment device that can be easily used by anyone by mounting a capsule unit in which a dental implant is packaged.

[0015] In order to achieve the above object, the dental implant capsule unit of the present invention comprises: a capsule housing formed in a cylindrical shape with open upper and lower portions and accommodating a dental implant fixture therein; a lower cap coupled to the lower portion of the capsule housing; a fixing portion coupled to the lower cap to fix the fixture and electrically connect to the fixture; and an upper cap coupled to the upper portion of the capsule housing; wherein the upper cap comprises a cap body coupled to the upper portion of the capsule housing and having an accommodation space formed therein that is isolated from the interior of the capsule housing; a cap cover coupled to the upper portion of the cap body to block the upper portion of the accommodation space; and a cover screw accommodated in the accommodation space so that the fixture can be fastened to a screw groove formed in the upper portion of the fixture after being implanted into the alveolar bone.

[0016] The above-mentioned fixed part is provided with a mount body that is connected to the lower cap and has an upper portion inserted into the entrance of the screw groove, and a mount screw that is inserted into a center hole formed to penetrate the upper and lower portions of the mount body and is screw-connected to the screw groove.

[0017] The above mount body comprises a lower body that is inserted into an insertion groove formed in the lower cap, a protruding flange formed to protrude from an outer surface of the lower body and hooked to the upper end of the lower cap, and an upper body formed on the upper portion of the lower body and inserted into the entrance of the screw groove to support the fixture.

[0018] The above mount screw has a fixed pin formed vertically long, a screw portion formed on the upper portion of the fixed pin and exposed to the outside of the mount body to be screwed into the screw groove, and a head portion formed on the lower portion of the fixed pin and having a diameter larger than the diameter of the fixed pin, and a catch is formed in the center hole to limit movement of the head portion when the mount screw is inserted into the center hole.

[0019] And to achieve the above object, the plasma surface treatment device of the present invention comprises: a case; an electrode part installed in a chamber provided on one side of the case and having a capsule unit mounted thereon; and a door for opening and closing the chamber; wherein the capsule unit comprises a capsule housing formed in a cylindrical shape with open upper and lower portions and accommodating a dental implant fixture therein; a lower cap coupled to the lower portion of the capsule housing; a fixing part coupled to the lower cap to fix the fixture and electrically connect the fixture and the electrode; and an upper cap coupled to the upper portion of the capsule housing; and wherein the electrode part comprises an electrode support part having an entry hole formed therein extending vertically through which the capsule unit can pass; a first electrode installed in the electrode support part and contacting an outer surface of the capsule housing; a holder part installed inside the electrode support part and coupled to the lower cap of the capsule unit entering through the entry hole; and a second electrode installed in the holder part and penetrating the lower cap to be connected to the fixing part.

[0020] The above holder part is connected to a power source and has a power connector in which the second electrode is installed to protrude upward, and a collet installed on the upper part of the power connector and to which the lower cap is coupled.

[0021] The above collet has a cylindrical body and a plurality of grippers formed by splitting the upper portion of the body into pieces and being elastically deformable by bending outward from the body.

[0022] It further comprises a rotating means for rotating the holder portion.

[0023] The above-mentioned rotating means comprises a motor, a driving gear coupled to the motor, and a driven gear coupled to the holder portion and meshed with the driving gear.

[0024] As described above, the dental implant capsule unit of the present invention can not only firmly support the implant contained therein, but also improve the connection structure between the capsule unit and the power source to increase the efficiency of plasma discharge.

[0025] In addition, the present invention can improve user convenience by providing a cover screw that can seal the screw groove of the fixture in the capsule unit itself for a certain period of time.

[0026] In addition, the present invention is implemented so that anyone can easily apply plasma to modify the surface of an implant with reduced osseointegration ability while it is packaged in a capsule unit, thereby improving hydrophilicity and early osseointegration ability after implantation, and at the same time, making it very convenient to use.

[0027] Figure 1 is a cutaway perspective view of a typical dental implant fixture.

[0028] Figure 2 is a perspective view of a capsule unit according to an example of the present invention.

[0029] Figure 3 is an exploded perspective view of Figure 2,

[0030] Figure 4 is a cross-sectional view of Figure 2,

[0031] Figure 5 is a perspective view of a plasma surface treatment device according to an example of the present invention.

[0032] Fig. 6 is a cutaway perspective view of the electrode portion applied to Fig. 5.

[0033] Fig. 7 is a perspective view of the electrode part applied to Fig. 5.

[0034] Fig. 8 is a cross-sectional view showing the capsule unit of Fig. 2 combined with the electrode portion applied to Fig. 5.

[0035] Figures 9 and 10 are the contact angle measurement test results,

[0036] Figure 11 shows the results of an organic matter analysis test.

[0037] Hereinafter, a dental implant capsule unit and a plasma surface treatment device using the same according to a preferred embodiment of the present invention will be described in detail.

[0038] A dental implant fixture (1) is accommodated inside the dental implant capsule unit of the present invention.

[0039] A fixture is a structure that is implanted into the alveolar bone for implant surgery and serves as an artificial tooth root. As illustrated in Fig. 1, a screw groove (2) of a certain depth is typically formed on the upper portion of the fixture (1). This is to allow an abutment screw, used to secure an abutment to the upper portion of the fixture (1), to be fastened to the screw groove (2).

[0040] The fixture (1) is formed of titanium metal or titanium alloy, a biocompatible and highly durable material. To enhance osseointegration, implant manufacturers may form an oxide film on the surface of the fixture made of titanium or titanium alloy, or may apply a separate surface treatment before packaging and distribution. Accordingly, implant manufacturers may place the fixture (1) with the oxide film formed or subjected to a separate surface treatment into a capsule unit (10) applied to the present invention and ship it.

[0041] Referring to FIGS. 1 to 4, a dental implant capsule unit (10) according to an example of the present invention comprises a capsule housing (11) formed in a cylindrical shape with open upper and lower portions and accommodating a dental implant fixture therein, a lower cap (15) coupled to the lower portion of the capsule housing (11), a fixing member (20) coupled to the lower cap (15) to fix the fixture (1) and electrically connect to the fixture (1), and an upper cap (30) coupled to the upper portion of the capsule housing (11).

[0042] The capsule housing (11) is formed in a cylindrical shape with the upper and lower parts open. Inside the capsule housing (11), the fixture (1) is positioned with the upper and lower parts turned upside down. When implanted into the alveolar bone, the pointed end of the fixture (1) is positioned at the lower side. However, when accommodated inside the capsule housing (11), the pointed end of the fixture (1) is positioned at the upper side. Therefore, when accommodated inside the capsule housing (11), the screw groove (2) of the fixture (1) is positioned at the lower side.

[0043] The present invention generates plasma using a dielectric barrier discharge (DBD) method to treat the surface of a fixture. Dielectric barrier discharge (DBD) generates plasma by inducing an electrical discharge between two electrodes separated by an insulating dielectric barrier. DBD can be used at atmospheric pressure and room temperature, and is widely used in industry because it can produce high-power discharges and does not require complex pulse power supplies.

[0044] In the present invention, the capsule housing (11) is a container for packaging the fixture (1) and also serves as an insulating dielectric. The material of the capsule housing (11) may be quartz or a synthetic resin such as polycarbonate or high-density polyethylene, which may be used as an insulating dielectric.

[0045] The lower cap (15) is coupled to the lower part of the capsule housing (11) and supports the fixing part (20). The lower cap (15) may be formed of synthetic resin. A protrusion (16) is formed on the upper part of the lower cap (15). The protrusion (16) is inserted into the interior of the capsule housing (11) through the lower part of the capsule housing (11). A joint groove (19) having a predetermined depth along the circumference is formed on the outer surface of the lower cap (15). The protrusion (79) of the grippers (78) of the electrode part (60) described later is coupled to the joint groove (19).

[0046] A circular electrode insertion hole (17) is formed inside the lower cap (15). This is to allow the second electrode (80) of the electrode portion (60) to be described later to be inserted into the lower cap (15). In addition, a circular mounting hole (18) is formed inside the protrusion (16). This is to allow the lower body (26) of the mount body (25) to be described later to be inserted. The mounting hole (18) is formed to have a larger diameter than the electrode insertion hole (17).

[0047] The fixing member (20) is coupled to the lower cap (15) to fix the fixture (1) and electrically connect the electrode member (60) of the plasma surface treatment device and the fixture (1). For this purpose, the fixing member (20) may be formed of a conductive metal material.

[0048] The fixed part (20) is coupled to the lower cap (15) and has a mount body (25) whose upper part is inserted into the entrance (2a) of the screw groove (2), and a mount screw (21) that is inserted into a center hole (29) formed to penetrate the upper and lower parts of the mount body (25) and is screw-coupled to the screw groove (2).

[0049] A center hole (29) extending vertically is formed in the center of the mount body (25). A mount screw (21) is inserted through the center hole (29) and connected to the fixture (1). In this state, when the second electrode (80) of the electrode part (60) is inserted into the lower part of the center hole (29), the mount body (25) is connected to the second electrode (80).

[0050] The illustrated mount body (25) comprises a lower body (26), a protruding flange (28) formed to protrude from the outer surface of the lower body (26) and hooked to the upper end of the lower cap (15), and an upper body (27) formed on the upper end of the lower body (26) and inserted into the inlet (2a) of the screw groove (2) to support the fixture (1).

[0051] The lower body (26) is inserted into the mounting groove (18) formed in the protrusion (16) of the lower cap (15) and is coupled to the lower cap (15).

[0052] The protruding flange (28) is formed to protrude outward from the upper outer surface of the lower body (26). When the lower body (26) is inserted into the mounting groove (18), the protruding flange (28) is caught on the upper end of the protrusion (16) of the lower cap (15).

[0053] The upper body (27) is formed on the upper part of the lower body (26). The upper body (27) is formed so that its outer diameter gradually decreases as it goes upward. The upper body (27) is inserted into the inlet (2a) of the screw groove (2) of the fixture (1).

[0054] The center hole (29) is formed with different diameters at the upper and lower portions. For example, the upper portion of the center hole (29) corresponding to the upper body (27) is formed with a smaller diameter than the lower portion of the center hole (29) corresponding to the lower body (26). Accordingly, a catch (29a) with a narrower diameter is formed in the middle portion of the center hole (29).

[0055] The mount screw (21) is inserted into the lower part of the center hole (29) and protrudes toward the upper part of the mount body (25). The mount screw (21) protruding toward the upper part of the mount body (25) is screwed into the screw groove (2) of the fixture (1). The mount screw (21) firmly fixes the fixture (1) to the mount body (25).

[0056] The mount screw (21) has a fixed pin (22) that is formed long in the vertical direction, a screw portion (23) formed on the upper portion of the fixed pin (22) and exposed to the outside of the mount body (25) to be screwed into the screw groove (2), and a head portion (24) formed on the lower portion of the fixed pin (22) and having a diameter larger than the diameter of the fixed pin (22).

[0057] The fixed pin (22) is formed to be elongated vertically. The fixed pin (22) is formed with a diameter smaller than the diameter of the center hole (29) so that it can pass through the center hole (29). A screw portion (23) is formed on the upper portion of the fixed pin (22).

[0058] The head portion (24) is formed with a diameter larger than the diameter of the fixed pin (22). When the mount screw (21) is inserted into the center hole (29) and moved upward, the head portion (24) is caught on the catch (29b) of the center hole (29) and its movement is restricted.

[0059] And, in order to enable the mount screw (21) to be fastened to the fixture (1) using a tool, a hexagonal groove (24a) is provided in the head portion (24) for tightening with a tool.

[0060] The above-described fixing member (20) is screw-connected to the fixture (1) to support the fixture (1), so that the fixture (1) can be effectively fixed so that it does not move inside the capsule housing (11).

[0061] The upper cap (30) is attached to the upper part of the capsule housing (11). The upper cap (30) can be formed of synthetic resin.

[0062] The upper cap (30) is coupled to the upper part of the capsule housing (11) and has a cap body (31) in which a receiving space (32) isolated from the interior of the capsule housing (11) is formed, a cap cover (37) coupled to the upper part of the cap body (31) to block the upper part of the receiving space (32), and a cover screw (34) accommodated in the receiving space (32).

[0063] The cap body (31) is coupled to the upper part of the capsule housing (11). A protrusion (33) is formed at the lower part of the cap body (31) and is inserted into the upper part of the capsule housing (11). A receiving space (32) is formed inside the cap body (31). The lower part of the receiving space (32) is closed, and the upper part is open. Since the lower part of the receiving space (32) is closed, the receiving space (32) is disconnected from the interior of the capsule housing (11).

[0064] A cover screw (34) is accommodated in the accommodation space (32). The cover screw (34) can be inserted into the screw groove (2) of the fixture (1) and screwed together.

[0065] The implant procedure involves a first procedure to implant a fixture into the alveolar bone, a second procedure to fix an artificial tooth (crown) after waiting for the fixture to be osseointegrated into the alveolar bone (3 to 6 months), and then the second procedure. The screw groove of the fixture (1) implanted into the alveolar bone must be sealed until osseointegration occurs immediately after the first implant procedure. Therefore, immediately after the first implant procedure, the cover screw (34) contained in the upper cap (30) is taken out and fastened to the screw groove (2) of the fixture (1).

[0066] In this way, the present invention can improve user convenience by providing a cover screw (34) that can seal the screw groove (2) of the fixture (1) for a certain period of time in the capsule unit (10).

[0067] The cap cover (37) is attached to the upper part of the cap body (31) and blocks the upper part of the receiving space (32).

[0068] The dental implant capsule unit (10) of the present invention described above can not only firmly support the fixture (1) accommodated therein, but also increase plasma treatment efficiency by improving the connection structure between the capsule unit (10) and the electrode.

[0069] When a certain period of time passes during the distribution or storage process while the fixture (1) is contained in the capsule unit (10) described above, carbon in the air combines with the oxide film on the surface of the fixture (1), thereby reducing the hydrophilicity of the surface of the fixture (1), and the surface of the fixture (1) becomes contaminated by organic substances in the air. In this case, the initial osseointegration ability of the fixture (1) is significantly reduced, and inflammation due to contamination may be induced.

[0070] Accordingly, it is preferable to use the fixture (1) accommodated in the capsule unit (10) by treating the surface with plasma immediately before implant surgery.

[0071] The plasma surface treatment device applied to the present invention can treat the surface of a fixture (1) with plasma by generating plasma using a dielectric barrier discharge method. When the capsule unit (10) is mounted on the plasma surface treatment device with the fixture (1) accommodated therein and the plasma surface treatment device is operated, the surface of the fixture (1) is treated with plasma. Since there is air inside the capsule unit (10), the air is used as a plasma generating gas.

[0072] Referring to FIGS. 5 to 8, the illustrated plasma surface treatment device (50) comprises a case (51), an electrode unit (60) installed in a chamber (53) provided on one side of the case (51) and in which a capsule unit (10) is mounted, and a door (55) for opening and closing the chamber (53).

[0073] The case (51) is formed as a tubular structure having a predetermined space inside. A chamber (53) is provided on the front of the case (51). The chamber (53) is formed as an empty space of a predetermined size. A door (55) is installed on the front of the case (51) to enable the chamber (33) to be opened and closed. It is preferable that the door (55) be formed of a transparent material so that the interior of the chamber (53) can be viewed with the naked eye.

[0074] Of course, a power drive unit for supplying power to the electrode unit (60) is installed inside the case (51). A typical power supply and drive circuit used for dielectric barrier discharge can be applied as the power drive unit.

[0075] A touch screen (57) may be provided on the front of the case (51) to turn the power drive unit on / off or to control output and time, etc.

[0076] The electrode part (60) is installed in the chamber (53) of the case (51).

[0077] The illustrated electrode part (60) comprises an electrode support part (61) having an entry hole (62) formed in the vertical direction so that a capsule unit (10) can pass through, a first electrode (63) installed in the electrode support part (61) and contacting the outer surface of the capsule housing (11), a holder part (70) installed inside the electrode support part (61) and coupled to the lower cap (15) of the capsule unit (10) that enters through the entry hole (62), and a second electrode (80) installed in the holder part (70) and connected to the mount body (25) of the fixing part (20) by penetrating the lower cap (15).

[0078] The electrode support (61) is formed at a certain height from the bottom (54) of the chamber (53). The electrode support (61) is formed with an entry hole (62) that penetrates in the vertical direction so that the capsule unit (10) can pass through.

[0079] The first electrode (63) is installed on the inner surface of the entry hole (62). The first electrode (63) comes into contact with the outer surface of the capsule housing (11) that enters the entry hole (62). The first electrode (63) is formed in the shape of a thin plate. The first electrode (63) may be formed of a copper material. The first electrode (63) is formed in a curved shape so as to increase the contact area between the first electrode (63) and the capsule housing (11). Although not shown, the cable connected to the second electrode (85) may be installed to be grounded.

[0080] Meanwhile, a pushing means may be provided to push the first electrode (63) toward the capsule housing (11) so that the first electrode (63) can always be kept in close contact with the outer surface of the capsule housing (11). A spring may be used as the pushing means. In this case, the spring is installed in the electrode support member (61) and serves to push the first electrode (63) toward the entry hole.

[0081] The holder part (70) is installed inside the electrode support part (61). The holder part (70) is combined with the lower cap (15) of the capsule unit (10) that enters through the entry hole (62).

[0082] The holder part (70) is connected to a power source and has a power connector (71) that is installed to protrude above the second electrode (80), and a collet (76) that is installed on the upper part of the power connector (71) and to which the lower cap (15) is coupled.

[0083] The power connector (71) is formed of a conductive material. A coupling groove is formed on the upper portion of the power connector (71) for coupling the second electrode (80). In addition, a coupling groove is formed on the lower portion of the power connector (71) for coupling with a driven gear (103) to be described later, into which a bolt (73) is fastened. A support protrusion (72) is formed on the outer surface of the power connector (71).

[0084] The collet (76) has a cylindrical body (77) and grippers (78) formed by splitting the upper part of the body (77) into multiple pieces.

[0085] The body (77) is formed in a cylindrical shape with open upper and lower portions. The upper portion of the power connector (71) is inserted into the interior through the lower portion of the body (77). The lower portion of the body (77) is caught on the support jaw (72) of the power connector (71). The lower cap (15) of the capsule unit (10) is inserted into the interior of the body (77) through the upper portion of the body (77).

[0086] A plurality of cut slits are formed in the upper part of the body part (77). Accordingly, the upper part of the body part (77) is formed with a plurality of grippers (78) spaced at regular intervals. The grippers (78) are elastically deformable so as to be bent toward the outside of the body part (77). A protruding jaw (79) is formed on the inside of each gripper (78).

[0087] When the lower cap (15) of the capsule unit (10) begins to be inserted into the interior of the body (77), the grippers (78) are forcibly spread outward. And when the lower cap (15) is sufficiently inserted into the interior of the body (77), the lower part of the lower cap (15) is caught on the upper part of the power connector (71). And in this state, the protruding jaws (79) of the grippers (78) are engaged with the joint groove (19) of the lower cap (15). Accordingly, the lower cap (15) is fixed to the collet (76).

[0088] The second electrode (80) is installed in the power connector (71). The second electrode (80) is connected to the power driving unit and voltage is applied. The second electrode (80) may be formed in a vertically long rod shape. The second electrode (80) may be formed of a copper material. The second electrode (80) is inserted into and connected to a coupling groove formed in the upper portion of the power connector (71). The upper portion of the second electrode (80) is formed to protrude upward from the power connector (71). The second electrode (80) is inserted into the center hole of the mount body (25) through the electrode insertion hole (17) of the lower cap (15) and is electrically connected to the mount body (25).

[0089] In the present invention, a rotation means for rotating the holder part (70) may be further provided so as to rotate the capsule unit (10) coupled to the holder part (70).

[0090] It comprises a motor (100) as a rotation means, a driving gear (101) coupled to the motor (100), and a driven gear (103) coupled to a holder (70) and meshed with the driving gear (101).

[0091] An electric motor (100) is installed inside the case. A drive gear (101) is coupled to the rotation shaft of the electric motor (100).

[0092] The driven gear (103) is connected to the lower portion of the power connector (71) with a bolt (73). As shown, when two electrode parts (60) are provided in parallel within the chamber (53), one driven gear (103) is installed for each power connector (71) of each electrode part (60). The driven gears (103) of each electrode part (60) are installed to mesh with each other. One of the two driven gears (103) meshes with the drive gear (101).

[0093] When the motor (100) operates, the holder portion (70) of each electrode portion (60) rotates. Accordingly, the capsule unit (10) coupled to the holder portion (70) also rotates. When power is supplied while rotating the capsule unit (10), plasma can be evenly generated within the capsule unit (10).

[0094] A slip ring (85) is further provided to stably supply power to the second electrode (80) when the holder (70) rotates. The slip lip (85) contacts the lower portion of the power connector (71) and supplies power to the second electrode (80). The slip ring (85) is connected to the power drive unit by a cable. A metal bearing may also be used as the slip ring (85).

[0095] The plasma surface treatment device of the present invention described above can be implemented so that anyone can easily operate an implant with reduced osseointegration ability while it is packaged in a capsule unit to modify the surface of the implant.

[0096] To examine the effects of plasma-based surface treatment on implants, the contact angle and organic matter content were analyzed before and after plasma treatment. A titanium fixture was placed in the capsule unit shown in Figure 1 and used for testing.

[0097] Discharge experiments were conducted by connecting electrodes to a capsule unit containing a fixture. The capsule unit was rotated at approximately 7 rpm to generate plasma at room temperature and atmospheric pressure. Experiments were conducted under the following conditions: voltage of 6 kV, frequency of 15 kHz, and treatment time of 2 min.

[0098] <Contact angle measurement>

[0099] A 7 μl drop of distilled water was dropped onto the surface of the fixture specimen, and the extent of surface spreading was measured using a contact angle meter (Phoenix300, SEO, Korea). The contact angles of five specimens per experimental group were measured, and the average value was analyzed. The contact angle measurement results before surface treatment are shown in Fig. 9, and the contact angle measurement results after surface treatment are shown in Fig. 10, respectively.

[0100] Referring to Figures 9 and 10, the average contact angle before surface treatment was 110.70°, while the average contact angle after surface treatment was 9.64°. This confirms that when the fixture is surface treated with plasma, the surface of the fixture can be modified from hydrophobic to hydrophilic.

[0101] Organic matter analysis

[0102] A test was requested to analyze the increase or decrease in organic matter (carbon) on the fixture surface before and after plasma surface treatment. The results of the test request are shown in Figure 11.

[0103] Referring to Figure 11, the experimental results show that the amount of organic matter was reduced by an average of 328%. Therefore, it can be seen that surface treatment of the fixture with plasma can effectively reduce organic matter contaminating the surface of the fixture.

[0104] While the present invention has been described with reference to specific embodiments, these are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be determined solely by the appended claims.

Claims

1. A capsule housing formed in a cylindrical shape with open upper and lower parts and containing a fixture for a dental implant inside; A lower cap coupled to the lower part of the capsule housing; A fixing part electrically connected to the fixture while fixing the fixture by being coupled to the lower cap; It has an upper cap coupled to the upper part of the capsule housing; The upper cap is coupled to the upper part of the capsule housing and has a cap body in which an accommodation space is formed that is isolated from the interior of the capsule housing, a cap cover coupled to the upper part of the cap body to block the upper part of the accommodation space, and a cover screw that is accommodated in the accommodation space so that the fixture can be fastened to a screw groove formed in the upper part of the fixture after the fixture is implanted into the alveolar bone. A dental implant capsule unit characterized by having:

2. A dental implant capsule unit according to claim 1, characterized in that the fixing member comprises a mount body coupled to the lower cap and having an upper portion inserted into the entrance of the screw groove, and a mount screw inserted into a center hole formed to penetrate the upper and lower portions of the mount body and screw-coupled to the screw groove.

3. A dental implant capsule unit according to claim 2, characterized in that the mount body comprises a lower body that is inserted into an insertion groove formed in the lower cap, a protruding flange that is formed to protrude from an outer surface of the lower body and is hung on the upper end of the lower cap, and an upper body that is formed on the upper portion of the lower body and is inserted into the entrance of the screw groove to support the fixture.

4. In the second paragraph, the mount screw has a fixed pin formed vertically long, a screw portion formed on the upper portion of the fixed pin and exposed to the outside of the mount body to be screwed into the screw groove, and a head portion formed on the lower portion of the fixed pin and having a diameter larger than the diameter of the fixed pin. A dental implant capsule unit characterized in that a catch is formed in the center hole to limit movement of the head portion when the mount screw is inserted into the center hole.

5. Case and; An electrode part installed in a chamber provided on one side of the above case and equipped with a capsule unit; Equipped with a door for opening and closing the above chamber; The above capsule unit comprises a capsule housing formed in a cylindrical shape with open upper and lower portions and accommodating a fixture for dental implant inside, a lower cap coupled to the lower portion of the capsule housing, a fixing portion coupled to the lower cap to fix the fixture and electrically connect the fixture and the electrode, and an upper cap coupled to the upper portion of the capsule housing. The above electrode part is a plasma surface treatment device characterized in that it comprises an electrode support part having an entry hole formed in the upper and lower directions so that the capsule unit can pass through, a first electrode installed in the electrode support part and contacting the outer surface of the capsule housing, a holder part installed inside the electrode support part and coupled with the lower cap of the capsule unit entering through the entry hole, and a second electrode installed in the holder part and connected to the fixing part by penetrating the lower cap.

6. In the fifth paragraph, a plasma surface treatment device characterized in that the holder part has a power connector that is connected to a power source and in which the second electrode is installed to protrude upward, and a collet that is installed on the upper part of the power connector and to which the lower cap is coupled.

7. In the 6th paragraph, the collet is characterized by having a cylindrical body and a gripper formed by splitting the upper part of the body into a plurality of parts and capable of elastically deforming by bending outwardly of the body.

8. A plasma surface treatment device characterized in that it further comprises a rotating means for rotating the holder part in the fifth paragraph.

9. A plasma surface treatment device according to claim 8, characterized in that the rotating means comprises a motor, a driving gear coupled to the motor, and a driven gear coupled to the holder portion and meshing with the driving gear.

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