CN111432747A

CN111432747A - One-piece dental implant

Info

Publication number: CN111432747A
Application number: CN201880071991.9A
Authority: CN
Inventors: 白承冠
Original assignee: New Century Medical Technology Co ltd
Current assignee: New Century Medical Technology Co ltd
Priority date: 2017-11-07
Filing date: 2018-10-08
Publication date: 2020-07-17
Also published as: KR101831612B1; WO2019093659A1

Abstract

The present invention relates to a one-piece dental implant technique to be implanted into a bone of a human body, and to a technique to increase an initial fixation force and extend a life of an implant by generating cortical bone inside an implant fixture body. More specifically, the technical features include: an abutment which is positioned at the upper part with the gum height as a reference and is used for fixing teeth; and a fixture which is positioned at the lower part with reference to the gum height, has a thread formed on the outer wall, and has a cutting part formed inside to cut the fixture into two or three sections.

Description

One-piece dental implant

Technical Field

The present invention relates to a one-piece dental implant technique to be implanted into a bone of a human body, and to a technique to increase an initial fixation force and extend a life of an implant by generating cortical bone inside an implant fixture body.

Background

Loss of one or two teeth often occurs during adolescent periods, primarily due to decay, and in adults due to progressive deterioration of the gums. Implants (implants) originally refer to substitutes that restore human tissue when it is lost, but in dentistry refer to artificial tooth implants. In order to replace a lost tooth root, an artificial tooth root made of a material which does not have a rejection reaction with a human body is implanted into an alveolar bone from which a tooth is lost, and then the artificial tooth is fixed, so that the function of the tooth is restored.

The implant to be implanted into the human body as described above should be made of a material that does not have a rejection reaction with the human body, and in the technique of implanting the implant, a technique of increasing adhesion of bone cells for fixing teeth and a portion of the implant corresponding to the root portion to perform fixation is important. Particularly, in the case of a jaw bone for fixing teeth, which is divided into a cortical bone and a cancellous bone, wherein the cortical bone is a very dense and strong bone having no empty space, in contrast to the cancellous bone which exists under the cortical bone and is poor in compactness due to loose holes, when a portion of an implant corresponding to a root is fixed to the cortical bone, there is a problem in that an artificial tooth cannot be firmly fixed.

Korean registered patent No. 10-1115336 entitled "dental implant fixture" relates to an implant technique including an alveolar bone contact incision part composed of an assembly type, and discloses a method of increasing a contact area with an alveolar bone.

The above-mentioned prior art is an implant technique of an assembly type, which has a screw portion implanted into an alveolar bone and a structure in which an abutment is coupled with a screw inside the screw, and thus, a partially cut portion of the screw is formed only in a cortical bone portion having a poor tightness, and there is a problem in that the screw cannot be firmly fixed.

Therefore, there is a need for an implant technique that increases the area of a portion fixed to an alveolar bone and generates tightly firm cortical bone inside the fixed portion, thereby increasing an initial fixing force to extend the life of the implant.

Disclosure of Invention

The present invention relates to a technique for increasing an initial fixation force and extending a life of an implant by generating cortical bone inside an implant fixture.

The object of the present invention is to prevent gum disease and gum contraction due to tooth brushing by forming the incised part to be located in a range from the gum level to the bone of the tooth, thereby keeping the gum inside the trunk of the implant, and keeping the gum at the same level as the tooth.

The invention aims to provide a shape similar to a natural tooth by using a position which is separated by more than 2mm downwards from the position of the upper end of an incision part as a lower end.

The present invention is directed to saving removal time and alleviating patient's pain due to excessive removal time by forming a cutting groove in an abutment so that it is easily removed when the abutment is removed.

The present invention has an object to provide a root similar to a natural tooth by incising an incised part similarly to the form of an original tooth at a position where an implant is implanted, thereby more stably fixing the implant and extending the life thereof.

to achieve the above object, an integrated dental implant according to an embodiment of the present invention is implanted into a bone of a human body, and includes an abutment positioned at an upper portion with respect to a gum height (Tissue L evel) to fix a tooth, and a fixture positioned at a lower portion with respect to the gum height and having a screw thread formed on an outer wall, wherein an incision portion for incising the fixture into two or three segments is formed inside the fixture.

further, the incised part is formed such that an upper end thereof is located in a range from the gum height (Tissue L evel) to the tooth Bone part (Bone L evel).

Further, the cut portion is formed so as to have a lower end located at a position spaced downward by at least 2mm from the upper end.

In addition, at least one cutting groove is formed in the abutment.

Further, the incised part is incised in two stages in the case where the original tooth at the position where the implant is implanted is a multiple tooth, and incised in three stages in the case where a plurality of teeth are provided.

The present invention can provide an implant in which cortical bone is generated inside an implant fixture body, thereby increasing initial fixation force and extending the life of the implant.

The present invention can provide an implant in which an incised part is formed to be located in a range from a gum height to a tooth bone part, thereby keeping a gum inside a trunk of the implant, preventing gum disease and gum contraction caused by tooth brushing, and maintaining the gum at the same level as that of a tooth.

The present invention can provide an implant that is formed so that a position spaced downward by 2mm or more from the position of the upper end of the incision part is set as the lower end, thereby providing a shape similar to a natural tooth.

The present invention can provide an implant which can save a removal time and relieve a patient's pain due to an excessive removal time by forming a cutting groove in an abutment, thereby allowing easy removal when removing the abutment.

The present invention can provide an implant which can provide a root similar to a natural tooth by incising an incised part similarly to the form of an original tooth at a position where the implant is implanted, thereby more stably fixing the implant and extending the life.

Drawings

Fig. 1 is a view showing an overall configuration of a one-piece implant according to an embodiment of the present invention.

Fig. 2 is a view illustrating an example of implanting a one-piece implant in an alveolar bone according to an embodiment of the present invention.

Fig. 3 is a diagram showing an example of the mechanical engineering constitution according to an embodiment of the present invention.

Fig. 4 is a view showing an example of partially cutting above a lower end portion of a fixing body according to an embodiment of the present invention.

Fig. 5 is a diagram illustrating an example of an abutment according to an embodiment of the present invention.

Fig. 6 is a view showing an example of cutting the lower end portion of the fixing body of the one-piece implant into two pieces according to one embodiment of the present invention.

Fig. 7 is a view showing an example of cutting the lower end portion of the fixing body of the one-piece implant into three pieces according to one embodiment of the present invention.

Fig. 8 is a diagram illustrating an example of root morphology according to an embodiment of the present invention.

Detailed Description

to achieve the above object, a one-piece dental implant according to an embodiment of the present invention is implanted into a bone of a human body, and includes an abutment positioned at an upper portion with respect to a gum height (Tissue L evel) to fix a tooth, and a fixture positioned at a lower portion with respect to the gum height and having a screw thread formed on an outer wall thereof, wherein an incision portion for incising the fixture into two or three segments is formed in the fixture.

In addition, at least one cutting groove is formed in the abutment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is judged that detailed description of related well-known configurations or functions may make the gist of the present invention unclear, the detailed description will be omitted. In addition, in describing the embodiments of the present invention, the specific numerical values are only examples, and do not limit the scope of the present invention accordingly.

Implants are generally classified into One-Piece (single, One Piece) implants and assembly-type (Two Piece) implants. The one-piece implant is a form in which a fixture body fixed to an alveolar bone and an abutment are combined together, and the assembly type implant is composed of a form in which the fixture body and the abutment are combined. The one-piece implant is an implant which prevents the infiltration of bacteria by removing a space where bacteria grow, thereby preventing the onset of systemic diseases, and has no peculiar smell, as a design advantageous for immediate implantation, immediate loading, and immediate repair. In addition, the one-piece implant has advantages such as reduced fear of thread loosening, reduced odor, reduced bacterial adhesion, and reduced bone removal amount, unlike the assembly type implant.

In addition, according to a research paper of "one-piece implant" of the yangjiri and other four people, in the development and popularization of treatment using the implant, various complications in biological (biological), mechanical (mechanical) and aesthetic (esthetic) aspects occur, as biological complications such as inflammation around the implant and disappearance of bone, mucosal inflammation, fistula (pustule) generated at the joint surface of the assembled implant, and implant detachment. Mechanical complications include structural and mechanical defects of the assembled implant, such as fracture, wear of the metal structure, loss of retention, loosening and fracture of the threads, and fracture of the implant fixation. Finally, aesthetic complications refer to the fact that the prosthesis is associated with the surrounding tissue, thereby affecting the appearance of the prosthesis. To overcome this complication, many attempts have been made, with a great deal of development, one of which is the development of monolithic implants. The majority of existing implants are assembly (two) implants. However, studies have shown that monolithic (single) implants have mechanical and biological advantages over assembled (two) implants.

As a result of analysis and examination of various studies, as a result, it has been found that mechanical complications such as loosening and breaking of screw threads, breaking of abutments and fixing bodies of one-piece implants are few. In addition, it has been shown that the one-piece implant has few biological complications because of no micro-gap, micro-motion, and detachment and re-adhesion of the dental connection, etc. The present invention relates to a technique of a one-piece dental implant having such advantages.

The one-piece dental implant according to the present invention includes an abutment 102, a fixture 101, and a cut-out portion 103.

The one-piece dental implant is an one-piece type in which the fixture 101 and the abutment 102 are coupled to each other, and has no internal thread for coupling the fixture 101 and the abutment 102 to each other inside. In the implant of the assembled type (two-piece), the size of the internal thread for coupling the fixture body 101 and the abutment 102 is 3.0mm in minimum diameter and 6.0mm in length. However, the one-piece implant without the internal coupling thread inside the fixture body 101 has the following advantages: it is possible to secure a space for maximally enlarging the cutting portion of the fixing body 101 without the connection thread being broken or the thread being loosened.

in the one-piece implant implanted into a human bone, an abutment 102 is positioned at an upper portion with reference to a gum height (Tissue L evel)107 for tooth fixation.

The abutment 102 is formed in a cylindrical shape of a crown portion 109 (restoration) for fixing a tooth shape in order to implant an artificial tooth, and the crown portion 109 may be referred to as a crown 109, which is similar in shape to a natural tooth and may replace the function of the natural tooth. The crown 109 is typically made of a material having a tooth color and a gold color, the gold color material is gold, and the tooth color material is zirconia, ceramic, or the like.

At least one cutting groove 108 is formed in the abutment 102.

The abutment 102 may be removed in the oral cavity of a patient according to the diameter or length of the crown 109 after implantation of the implant, and the cutting grooves 108 may be formed at intervals of 1 to 3mm for easy removal. If the length to be removed is cut based on the cutting groove 108, the removal time can be saved. If the removal time can be saved, there is an advantage that the pain of the patient due to the excessive removal time can be reduced and the effect of preventing the temperature rise of the abutment 102 can be obtained.

The fixture 101 is located at a lower portion with reference to a gum height and has a thread 105 formed on an outer wall.

The fixing body 101 includes a screw thread 105, a trunk outer wall 110, a cut-out portion 103, and a lower end portion of the fixing body 101.

The fixture 101, which is a fixing portion for stably implanting the implant into the tooth, is located below the implant, and since the fixture 101 has the screw thread 105, an initial fixing force becomes large and a contact area with the bone becomes large, thus being advantageous for stability of the implant and also being an advantageous form for dispersion of occlusal load. The incision part 103, which is an inside part of the fixture body, may also be formed of the thread 105, and since the inside and outside incised on the basis of the fixture body are all formed of the thread 105, an initial fixing force becomes more large and a contact area with the bone becomes large, so that the stability of the implant is facilitated.

The outer diameter of the fixing body 101 is Tapered (threaded) from the top to the bottom, and the outer surface is formed with a thread 105 to function as a self-tapping screw (a screw into which a thread is self-tapped when screwed into a hole having no thread).

the distal end portion of the lower end portion of the fixture 101 may be cut into two or three segments from the trunk (trunk outer wall 110) up to the tooth Bone (Bone L evel)106 or the gum height (Tissue L evel) 107.

The cut-out portion 103 cuts out the fixing body 101 into two or three sections inside the fixing body 101.

The incision part 103 is positioned on the fixture 101 side, so that the implant is stably implanted into the tooth, and is configured in a form of being incised at the center of the fixture so as to be stably fixed to a gingival bone called a gingival part, a cancellous bone 210, and a cortical bone 220.

the incision 103 may be made in two or three sections around the trunk (trunk outer wall 110) from the distal end portion of the lower end 104 of the fixture body to the bony part of the tooth (Bone L evel) 106.

The cut portion 103 may be formed in a manner of gradually tapering from the upper portion to the lower portion (Tapered) from the cut portion 103 inside, or may be formed in a manner of cutting two or three segments in a straight line, in a manner of gradually tapering from the upper portion to the lower portion (Tapered) from the cut portion 103 inside. In the case of the form including the cut-out portion 103, the trunk of the fixed body 101 is divided into two or three halves to form the cut-out portion 103, and therefore, there is an advantage that blood can smoothly flow from the outside into the fixed body 101 in the vertical direction and the horizontal direction.

The bone regeneration effect can be improved by halving (cutting into two segments) and trisecting (cutting into three segments) the inside of the fixture 101 to increase the contact area with the alveolar bone, and by performing surface treatment on the fixture 101 by Acid-etching (Acid-etching), the inside of the cut-out portion 103 is also subjected to surface treatment, so that the bone regeneration effect can be improved.

The lower end 104 of the fixing body may be in a form of being cut or may be in a form of not being cut. When the fixing body 101 is cut at a portion 1-2 mm higher than the lower end 104 of the fixing body, the fixing body is prevented from being deformed by external pressure. When the lower portion of the fixture lower end portion 104 is in a non-cut state, the function of a self-tapping screw (a screw into which a thread enters when screwed into a hole having no thread) when the implant is implanted can be enhanced by forming the thread 105 in the fixture lower end portion 104.

The incision part 103 is formed with the gum height as the upper end.

the incised part 103 is formed such that the upper end is located in a range from a gum height (Tissue L evel)107 to a tooth Bone part (Bone L evel) 106.

Gingiva (gingiva) is a kind of oral mucosa that surrounds a portion of a tooth that contacts a jawbone. When the gum is lost, a recovery time of 7 to 10 days is usually required, but in the case of diseases caused by gum diseases, improper tooth brushing habits, and the like, the recovery time is slow, and recovery may be difficult at all times. In the case of implanting the implant without the cut part 103, the gum of the fixture 101 portion of the implant may be lost, but in the case of the present invention, since the cut part 103 reaches the gum, the gum is retained in the cut part, thereby preventing the gum from being contracted due to gum disease and tooth brushing, and having an effect of retaining the gum and the tooth at the same level.

That is, in the case of an implant without the incision 103, since the fixture 101 is partially made of the material of the fixture 101, when the implant is implanted, the gingiva, the cortical bone 220, and the cancellous bone 210 are all pushed out, and the gingiva, the cortical bone 220, and the cancellous bone 210 may be pushed out or lost (removed). However, in the case of the fixture 101 including the incision portion 103 according to the present invention, since the form of the fixture 101 is minimized compared to the fixture 101 without the incision portion 103, there is an advantage that damage to the gum, the cortical bone 220, and the cancellous bone 210 can be minimized.

the jaw Bone structure for fixing teeth is roughly divided into a cortical Bone 220 and a cancellous Bone 210, wherein the cortical Bone 220 is formed by a portion about 2 to 4mm downward from the dental Bone portion (Bone L evel)106, has no empty space, is very dense and strong, and on the contrary, the cancellous Bone 210 is present below the cortical Bone 220 and has poor compactness due to loose holes.

The time that cortical bone 220 is generated after loss varies depending on the upper or lower jaw, but may take 10-16 weeks. The repair is performed 3 to 4 months after the implant is implanted, which means a time until the cortical bone 220 is generated.

The initial fixation force is increased by generating the cortical bone 220 inside the fixture body 101, and the cortical bone 220 is retained inside, so that the implant life can be extended. The necessity of retaining the cortical bone 220 is that, when the cortical bone 220 is broken, the teeth first start to sway, and thus the teeth may be lost. In particular, most of the dentistry-related drugs for reinforcing osteoporosis are for preventing cortical bone 220 and gum (gingiva) diseases.

When the incised part 103 is located between the gingival level and the bony part of the tooth, not only the gingival may be protected, but also since the incised part 103 entirely surrounds the cortical bone 220, there is an advantage that the implant may be more stably and firmly fixed.

The incision part 103 is formed at a position spaced at least 2mm or more downward from the gum height as a lower end.

The cut-out portion 103 is formed at a position separated downward by at least 2mm from the upper end as a lower end.

As for the diameter D1 of the fixture 101, a minimum of 3.0mm and a maximum of 8.0mm, the diameter D2 of the cut-out portion 103 of the fixture 101 is a minimum of 0.5mm and a maximum of 7.0mm, the length L1 of the fixture 101 is a minimum of 4.0mm and a maximum of 17.00mm, the length L2 of the abutment 102 is a minimum of 2.0mm and a maximum of 15.0mm, and the length L3 of the cut-out portion 103 of the fixture 101 is a minimum of 2.0mm and a maximum of 17.0 mm.

The length of the cut portion 103 of the fixing body 101 is a position where the cut portion 103 is separated downward from the upper end position, and the upper end of the cut portion 103 may be a position where the cutting starts at the upper end with the cut portion 103 as a reference.

The incised part 103 is formed by incising two teeth in the case of a multiple tooth 802 as an original tooth at a position where an implant is implanted, and incising three teeth in the case of a plurality of teeth 803.

In terms of teeth, there are roughly divided into a crown called a tooth head and a root called a tooth root. In the case of an implant used in dentistry, if compared with our constitution, the portion corresponding to the abutment 102 may be a tooth head (crown) portion and the portion corresponding to the fixture 101 may be a tooth root (root). The structure of the tooth root may be composed of a boundary portion of enamel and cementum, i.e., a root neck, the most terminal portion of the root, i.e., a root apex (usually, the root apex is inclined to the far center), and the length from the root apex to the neck, i.e., a root body.

The tooth roots may be classified according to the number of tooth roots, and a single tooth 801(Simple root) composed of one tooth root is formed in the upper and lower jaw anterior teeth, the upper jaw second premolar, and the lower jaw first and second premolar. In the case of a multiple root tooth 802(complex tooth) whose root is composed of two teeth, it is located at the first premolar of the upper jaw, the molar of the lower jaw, and the deciduous tooth of the lower jaw, and the root of the first premolar of the upper jaw is branched into the buccal side and the lingual side, and the molar of the lower jaw and the deciduous tooth of the lower jaw are branched into the mesial and distal sides. A plurality of teeth 803(multiple roots) composed of three or more roots are composed of maxillary molars (lingual root, mesial buccal root, distal mesial buccal root in this order) and maxillary deciduous teeth.

According to the present invention, the incised part 103 belonging to the fixture 101 may be configured to be incised in two or three stages, and the incised part 103 may be incised in two stages in the case where the original tooth of the patient to be treated is the multiple tooth 802, or the incised part 103 may be incised in three or four stages in the case where the original tooth is the multiple tooth 803, in order to implant the tooth in a form similar to the root of the original tooth of the patient to be treated.

The cut-out portion 103 cuts out the fixing body 101 in two or three stages inside the fixing body 101.

The incised part 103 is positioned at one side of the fixture 101 so that the implant can be stably implanted into the tooth, and the center of the fixture 101 is configured in an incised form so that it can be stably fixed to a gingival bone, a cancellous bone 210, and a cortical bone 220, which are called a gingival part.

the incision 103 may be made in two, three, or four segments around the trunk (outer trunk wall 110) from the distal end portion of the lower end 104 of the fixture body to the bony part of the tooth (Bone L evel) 106.

The cut portion 103 may be formed in a manner of gradually tapering from the upper portion to the lower portion (Tapered) outside the fixing body 101, or in a manner of gradually tapering from the upper portion to the lower portion (Tapered) from the cut portion 103 inside, or in a manner of cutting two, three, or four segments in a straight line. In the case of the form including the cut-out portion 103, the trunk of the fixed body 101 is divided into two or three equal parts to form the cut-out portion 103, and therefore, there is an advantage that blood can smoothly flow from the outside into the fixed body 101 in the vertical direction and the horizontal direction.

The bone regeneration effect can be improved by halving (cutting into two segments), trisecting (cutting into three segments), and quartering (cutting into four segments) the inside of the fixture 101, increasing the contact area with the alveolar bone, and by performing surface treatment on the fixture 101 with Acid-etching (Acid-etching), the inside of the cut portion 103 is also subjected to surface treatment, thereby improving the bone regeneration effect.

The lower end 104 of the fixing body may be in a form of being cut or may be in a form of not being cut. When the part higher by 1-2 mm from the lower end 104 of the fixing body is cut, the fixing body 101 can be prevented from being deformed by external pressure. In the case where the lower portion of the fixture lower end portion 104 is not cut, the function of a self-tapping screw (a screw which self-taps a thread when screwed into a hole having no thread) when implanting an implant can be enhanced by forming the thread 105 in the fixture lower end portion 104.

The incision part 103 is formed with the gum height as the upper end.

The gingiva (gingiva)230 is a kind of oral mucosa that surrounds a portion of a tooth that contacts with a jawbone. When the gum 230 is lost, a recovery time of 7 to 10 days is usually required, but in the case of diseases caused by gum diseases, improper tooth brushing habits, and the like, the recovery time is slow, and recovery may be difficult at all times. When the implant is implanted without the implant having the incised part 103, the gum 230 of the fixture 101 portion of the implant may be lost, but in the case of the present invention, since the incised part 103 reaches the gum 230, the gum 230 is retained in the incised part, thereby preventing the gum from being contracted due to gum disease and tooth brushing, and having an effect of retaining the gum 230 at the same level as the teeth.

That is, in the case of an implant without the incision 103, since the inside of the fixture 101 is entirely made of the material of the fixture 101, when the implant is implanted, the gingiva 230, the cortical bone 220, and the cancellous bone 210 are all pushed out, and the gingiva 230, the cortical bone 220, and the cancellous bone 210 may be pushed out or lost (removed). However, in the case of the fixture 101 including the incised part 103 according to the present invention, since the form of the fixture 101 is minimized compared to the fixture 101 without the incised part 103, there is an advantage in that damage to the gingiva 230, the cortical bone 220, and the cancellous bone 210 can be minimized. When the upper end of the incised part is located between the gingival level and the bony part of the tooth, the gingiva 230 remains inside the incised part 231, and the cortical bone 220 may remain inside the incised part 221 and the cancellous bone 210 may remain inside the incised part 211 as it descends toward the lower end of the incised part.

The initial fixation force is increased by generating the cortical bone 220 inside the fixture body 101, and the cortical bone 220 is retained inside, so that the implant life can be extended. The necessity of retaining the cortical bone 220 is that, when the cortical bone 220 is broken, the teeth first start to sway, and thus the teeth may be lost. In particular, most of the dentistry-related drugs for reinforcing osteoporosis are for preventing cortical bone 220 and gum (gingiva)230 diseases.

Fig. 4 is a view showing an example of cutting at a portion above a lower end portion of the fixing body 101 according to an embodiment of the present invention.

The cut-out portion 103 cuts out the fixing body 101 in two, three, or four sections inside the fixing body 101. The cut-out portion 103 is formed with the gum height as the upper end. The incision part 103 is formed with a lower end at a position spaced at least 2mm below the gum level.

The lower end portion 104 of the fixing body may be in a form of being cut or may be in a form 401 of being joined without being cut. When the part higher by 1-2 mm from the lower end 104 of the fixing body is cut, the fixing body 101 can be prevented from being deformed by external pressure. In the case where the lower portion of the fixture lower end portion 104 is not cut, the screw thread 105 is formed in the fixture lower end portion 104, whereby the function of a self-tapping screw (a screw which self-taps a thread into a hole having no thread) when the implant is implanted can be enhanced.

When the inside of the fixing body 101 is cut into two steps in a state where the fixing body lower end portion 104 is not cut, both side screw thread portions 105 of the fixing body 101 are drawn down toward the lower end of the cut portion 103, so that a state 401 where the fixing body lower end portion 104 is not cut but coupled can be formed, and the screw thread 105 can be formed in the coupled fixing body lower end portion 104. When the inside of the fixing body 101 is cut into three parts in a state where the lower end portion 104 of the fixing body is not cut, the thread 105 of the three-part cut part 103 of the fixing body 101 may be in a state where the three-part thread 105 is closed as it goes down toward the lower end of the cut part 103. As with the two-stage cut, the lower end of the fixing body 101 may be formed in a coupled form, and the coupled lower end 104 of the fixing body may be formed with a screw thread 105. In the case where the lower end portion 104 of the fixture is threaded, since the force received from the lower end when the implant is implanted becomes strong, the function of a self-tapping screw (a screw which self-taps a thread into when screwed into a hole having no thread) can be enhanced.

Fig. 5 is a diagram illustrating an example of an abutment 102 according to an embodiment of the present invention.

At least one cutting groove 108 is formed in the abutment 102.

The abutment 102 may be removed after implantation of the implant within the patient's mouth depending on the diameter or length of the crown 109, which may typically be measured and judged by the person performing the procedure. In the present invention, the cutting grooves 108 may be formed at intervals of 1 to 3mm in order to easily remove the abutment 102. Even if the length is not measured separately or the height to be cut is judged, the length to be removed can be cut off intuitively based on the cutting groove 108, thereby saving the removal time. If the removal time is saved, there is an advantage that the pain of the patient due to the excessive removal time can be reduced and the effect of preventing the temperature rise of the abutment 102 can be obtained.

Fig. 6 is an explanatory view showing that the lower end portion of the fixing body 101 of the one-piece implant is cut into two pieces according to one embodiment of the present invention.

The two-stage cut may be made in a straight line (-) from the distal end portion of the anchor lower end portion 104 to the tooth bone portion or the gum height, i.e., the upper end portion 106 of the anchor 101, with the trunk portion (trunk outer wall 110) as the center. The outside of the fixing body 101 may be cut so as to be tapered from the upper end 602 of the two-stage cut portion 103 to the lower end 603 of the two-stage cut portion 103. The lower ends of the two-stage cut portions 103 may be in a form of being cut or may be in a form of being joined without being cut.

the body (outer trunk wall 110) may be cut into two, three, or four segments from the end portion of the lower end portion of the fixture body 101 to the tooth Bone (Bone L evel)106 or the gum height (Tissue L evel) 107.

The incised part 103 is located at the side of the fixture 101 so that the implant can be stably implanted into the tooth, and the center of the fixture 101 is configured in an incised form so that it can be stably fixed to a gingival bone, a cancellous bone 210, and a cortical bone 220, which are called a gingival part.

the incision 103 may be made in two or three sections around the trunk (trunk outer wall 110) from the distal end portion of the lower end portion 104 of the fixture body to the bony part of the tooth (Bone L evel)106 or the gum height (Tissue L evel) 107.

The cut portion 103 may be formed in a manner of gradually tapering from the upper portion to the lower portion (Tapered) outside the fixing body 101, or in a manner of gradually tapering from the upper portion to the lower portion (Tapered) from the cut portion 103 inside, or in a manner of cutting two, three, or four segments in a straight line. In the case of the form including the cut-out portion 103, the trunk of the fixed body 101 is divided into two or three halves to form the cut-out portion 103, and therefore, there is an advantage that blood can smoothly flow from the outside into the fixed body 101 in the vertical direction and the horizontal direction.

The lower end 104 of the fixing body may be in a form of being cut or may be in a form of not being cut. When the part higher by 1-2 mm from the lower end 104 of the fixing body is cut, the fixing body 101 can be prevented from being deformed by external pressure. In the case where the lower portion of the fixture lower end portion 104 is not cut, the screw thread 105 is formed in the fixture lower end portion 104, whereby the function of a self-tapping screw (a screw which self-taps a thread into a hole having no screw thread) when implanting an implant can be enhanced.

Fig. 7 is an exemplary view illustrating that the lower end portion of the fixing body 101 of the one-piece implant is cut into three pieces according to one embodiment of the present invention.

Three sections may be cut from the distal end portion of the fixture lower end portion 104 to the tooth bone portion or the gum height, that is, the upper end portion 106 of the fixture 101, around the trunk portion (trunk outer wall 110), and the end surface 701 of the three-section cut portion 103 may be divided into three sections. The outside of the fixing body 101 may be cut so as to be tapered from the upper end 702 of the three-step cut part 103 to the lower end 703 of the three-step cut part 103. The lower end of the three-stage cut portion 103 may be in a form of being cut or may be in a form of being joined without being cut.

the body (outer trunk wall 110) may be cut into two or three sections from the tip portion of the upper end of the fixture body 101 to the tooth Bone (Bone L evel)106 or the gum height (Tissue L evel) 107.

The cut portion 103 may be formed in a manner of gradually tapering from the upper portion to the lower portion (Tapered) outside the fixing body 101, in a manner of gradually tapering from the upper portion to the lower portion (Tapered) from the cut portion 103 inside, or in a manner of cutting two, three, or four segments in a straight line. In the case of the form including the cut-out portion 103, the trunk of the fixed body 101 is divided into two or three halves to form the cut-out portion 103, and therefore, there is an advantage that blood can smoothly flow from the outside into the fixed body 101 in the vertical direction and the horizontal direction.

The bone regeneration effect can be improved by halving (cutting into two segments), trisecting (cutting into three segments), or quartering (cutting into four segments) the inside of the fixture 101 to increase the contact area with the alveolar bone, and by performing surface treatment on the fixture 101 with Acid-etching (Acid-etching) to perform surface treatment also on the inside of the cut-out portion 103, the bone regeneration effect can be improved.

The lower end 104 of the fixing body may be in a form of being cut or may be in a form of not being cut. When the part higher by 1-2 mm from the lower end 104 of the fixing body is cut, the fixing body 101 can be prevented from being deformed by external pressure. When the lower part of the fixture lower end portion 104 is in a non-cut state, the function of a self-tapping screw (a screw into which a thread is self-tapped when the screw is screwed into a hole having no thread) when the implant is implanted can be enhanced by forming the thread 105 in the fixture lower end portion 104.

The incised part 103 is formed by incising two teeth in the case where the original tooth at the position where the implant is implanted is the multiple tooth 802, and incising three or four teeth in the case where the plurality of teeth 803 are provided.

According to the present invention, the incised part 103 belonging to the fixture 101 may be configured to be incised in two, three or four stages, and the incised part 103 may be incised in two stages in the case where the original tooth of the patient to be treated is the multiple tooth 802, or the incised part 103 may be incised in three or four stages in the case where the original tooth is the multiple tooth 803, in order to implant the tooth in a form similar to the root of the original tooth of the patient to be treated.

The present invention relates to a one-piece dental implant technique to be implanted into a bone of a human body, and to a technique to increase an initial fixation force and extend a life of an implant by generating cortical bone inside an implant fixture body. More specifically, it is characterized in that it comprises: an abutment which is positioned at the upper part with the gum height as a reference and is used for fixing teeth; and a fixture which is positioned at the lower part with the gum height as the reference, is provided with a thread on the outer wall, and is internally provided with a cutting part for cutting the fixture into two or three sections.

Claims

1. A one-piece implant for implantation into a bone of a human body,

The method comprises the following steps:

An abutment which is positioned at the upper part with the gum height as a reference and is used for fixing teeth; and

A fixing body which is positioned at the lower part with the gum height as the reference and is provided with screw threads on the outer wall,

The fixing body is formed with a cut portion formed therein to cut the fixing body into two or three sections.

2. The unitary implant of claim 1,

The incised part is formed such that the upper end thereof is located in a range from the height of the gum to the tooth bone.

3. The unitary implant of claim 2,

The cut portion is formed at a position separated by at least 2mm downward from the upper end as a lower end.

4. The unitary implant of claim 1,

At least one cutting groove is formed on the base tooth.

5. The unitary implant of claim 1,

The incised part is incised into two sections when the original tooth at the position where the implant is implanted is a multiple tooth, and incised into three sections when the multiple teeth are implanted.