CN115919491A - Non-coaxial planting system and design method thereof - Google Patents
Non-coaxial planting system and design method thereof Download PDFInfo
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- CN115919491A CN115919491A CN202310166719.1A CN202310166719A CN115919491A CN 115919491 A CN115919491 A CN 115919491A CN 202310166719 A CN202310166719 A CN 202310166719A CN 115919491 A CN115919491 A CN 115919491A
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- implant
- coaxial
- abutment
- central screw
- dental crown
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- 238000000034 method Methods 0.000 title claims description 14
- 239000007943 implant Substances 0.000 claims abstract description 98
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 26
- 238000002513 implantation Methods 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 abstract description 10
- 230000001070 adhesive effect Effects 0.000 abstract description 10
- 241001391944 Commicarpus scandens Species 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 description 14
- 239000004053 dental implant Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 206010061218 Inflammation Diseases 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004195 gingiva Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010883 osseointegration Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Dental Prosthetics (AREA)
Abstract
The invention belongs to the technical field of implant teeth, and relates to a non-coaxial implant system, which comprises an implant body, an abutment, a central screw and a dental crown; the implant and the abutment and the implant and the central screw are connected in a non-coaxial linear manner, and the abutment and the central screw are connected in a coaxial linear manner, so that the open hole of the central screw can be positioned on the lingual side of the dental crown, and the appearance is attractive; the screw-fixed dental crown with the hole formed on the lingual side of the dental crown can be ensured, so that the risk caused by adhesive residue is thoroughly avoided; when the adhesive fixed crown is manufactured, the crown can be removed together with the abutment after being fixed in the mouth, thereby thoroughly cleaning the adhesive; the opening of the central screw can be ensured to be positioned at the lingual side of the dental crown when the inclination degree of the alveolar bone is different; in order to avoid the situation that the area of the implant corresponding to the tail end of the central screw is thin, the diameter of the implant is thickened at the position, and then the implant is gradually thinned towards the neck and the root, so that the thickness of the wall of the implant corresponding to the bottom end of the central screw can be ensured, and the implant is not easy to break.
Description
Technical Field
The invention belongs to the technical field of dental implants, and particularly relates to a non-coaxial implant system and a design method thereof.
Background
Dental implants are known as the "third pair of human teeth". The implant 1 corresponds to a tooth root and is an implant embedded in an alveolar bone. The structure which passes through the gum and can be inserted into the implant is called an abutment 2, and the abutment 2 and the implant are fixed together through a central screw 3. Finally, the artificial crown 4 is fixed to the abutment 2 by an adhesive (fig. 1 and 2), and the dental implant restoration is completed. However, the adhesive for cementing the crown 4 often remains around the abutment 2 or the implant 1, causing inflammation of the gingiva and alveolar bone around the implant 1, and eventually leading to resorption of the alveolar bone, exposure of the implant, loosening and detachment, and ending in failure (fig. 3 and 4). Therefore, an ideal way of dealing with the dental crown is to open the central screw 3 of the abutment 2 at the lingual side of the crown 4 (the side of the abutment close to the tongue), and then to open the dental crown 4 at the screw opening corresponding to the abutment 2 (i.e. to open a hole at the corresponding position) (fig. 5), and after the dental crown 4 is fixed in the mouth, the central screw 3 is loosened through the opening to take out the crown 4 and the abutment 2 (which are already fixed as a whole at this time), and the excess adhesive is thoroughly removed and highly polished, and then the central screw 3 is re-inserted and screwed to close the screw mouth, thereby completing the final repair.
However, in the current implant system, the coaxial and linear connection between the implant 1 and the abutment 2, and between the abutment 2 and the central screw 3 (as shown in fig. 1) cannot achieve the effect of fig. 5, and the alveolar bone is inclined towards the labial side, so that the implant must be also inclined towards the labial side in order to ensure that the implant 1 is located in the alveolar bone, so most of the screw openings of the abutment 2 are forced to be located at the labial side or the incisal end of the crown 4, which greatly affects the beauty (see fig. 6 and 7). Therefore, the dental crown 4 is forced to be repaired by using the non-drilled and cemented dental crown 4, and after the cementing, the dental crown 4 cannot be removed together with the abutment 2 because the screw hole is covered by the dental crown 4, and the residual cement cannot be completely removed, thereby burying a risk factor.
However, there is no implanting system for ensuring that the screw hole of the abutment 2 is positioned on the lingual side of the crown 4, wherein the implanting system has a non-coaxial, linear connection between the implant 1 and the abutment 2 and between the abutment 2 and the central screw 3.
Disclosure of Invention
The invention aims to provide a non-coaxial implanting system and a design method thereof, which solve the problem that the conventional implant can not ensure that a screw hole of an abutment is positioned on the lingual side of a dental crown.
The invention is realized by the following technical scheme:
a non-coaxial implantation system comprises an implant body, an abutment, a central screw and a dental crown;
the implant and the abutment and the implant and the central screw are connected in a non-coaxial linear manner, and the abutment and the central screw are connected in a coaxial linear manner;
a screw hole is arranged at the lingual side of the dental crown;
the diameter of the implant at the end corresponding to the central screw is the largest, and the implant gradually becomes thinner towards the neck and the root of the implant.
Furthermore, an axial included angle exists between the implant and the axial center line of the base station, and the included angle is 12-30 degrees.
Further, the axial included angle between the implant and the base station is 15 degrees.
Further, the part of the implant from the maximum diameter to the root end adopts a deep thread and large-pitch design;
the part of the implant from the maximum diameter to the neck is designed by shallow threads and small screw pitches.
Further, the thread depth of the deep thread is >0.5mm and the pitch of the coarse pitch is >0.5mm.
Furthermore, the thread depth of the shallow thread is less than or equal to 0.5mm, and the thread pitch of the small thread pitch is less than or equal to 0.5mm.
Further, the diameter of the implant is determined according to the size of the teeth at different positions and the width of the alveolar bone.
Further, the diameter of the implant is 3.25mm-4.5mm.
The invention also discloses a design method of the non-coaxial planting system, which comprises the following steps:
s1, preliminarily observing the width and height of an alveolar bone in a planting area and the inclination degree of a labial side according to dental CT data, performing three-dimensional reconstruction, simulating implant implantation, and measuring the required axial included angle between an implant and an abutment when a screw hole is expected to be positioned on the lingual side of a dental crown, so as to determine the axial inclination angle of the implant and the abutment;
and S2, determining the appropriate diameter and length of the implant.
Further, in S2, determining the diameter of the implant according to the sizes of the teeth at different positions and the width of the alveolar bone;
the length of the implant is determined according to the alveolar bone height and the missing tooth position.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a non-coaxial planting system, wherein a non-coaxial linear connection mode is adopted between a planting body and an abutment and between the planting body and a central screw, and a coaxial linear connection mode is adopted between the abutment and the central screw, so that an axial included angle is formed between the planting body and the axial center line of the abutment, the open hole of the central screw of the abutment can be ensured to be positioned at the lingual side of a dental crown, and the beautiful effect is ensured; the invention can ensure that the screw fixed dental crown with the hole on the lingual side of the dental crown is manufactured, thereby thoroughly avoiding the risk caused by adhesive residue; when the dental crown fixed by the adhesive is manufactured, the invention can ensure that the dental crown is taken down together with the abutment after the dental crown is fixed in the mouth, thereby thoroughly cleaning the adhesive; the invention can ensure that the central screw opening of the abutment is positioned at the lingual side of the dental crown when the inclination degree of the alveolar bone is different; in the invention, in order to avoid that the area of the implant corresponding to the tail end of the central screw is thinner, the diameter of the implant is thickened at the position, and the implant is further gradually thinned towards the neck and the root end, so that the thickness of the wall of the implant corresponding to the bottom end of the central screw can be ensured, and the implant is not easy to break.
Further, according to analysis of the width of the alveolar bone of the patient and the big data of the inclination degree of the labial side, the axial included angle between the implant and the axial center line of the abutment is designed to be 12-30 degrees.
Furthermore, in order to cut the alveolar bone less frequently in the implantation process, the part of the implant from the maximum radial root end adopts a deep thread and large-pitch design, and the part of the implant from the maximum radial neck part adopts a shallow thread and small-pitch design.
Drawings
FIG. 1 is a sectional view of a conventional dental implant in a coaxial linear connection manner;
fig. 2 is an assembled view of the dental implant of fig. 1;
FIG. 3 is a photograph of a dental implant with adhesive remaining around the abutment;
FIG. 4 is a photograph of a patient showing peri-implant inflammation due to residual cement, resulting in a large number of alveolar bone defects around the implant and implant loosening;
FIG. 5 is a photograph of a lingual opening of a dental crown;
FIG. 6 is a simulation diagram of a hole opening on the labial surface of a dental crown after a conventional implant is implanted in conformity with the alveolar bone direction;
FIG. 7 is a photograph of a tooth after a hole is opened in the labial surface of the crown after a conventional implant is implanted in conformity with the alveolar bone direction;
FIG. 8 is a schematic structural view of a non-coaxial planting system of the present invention;
fig. 9 is a simulation of a non-coaxial planting system of the present invention.
Wherein, 1, an implant; 2. a base station; 3. a central screw; 4. a dental crown.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description is made with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The components described and illustrated in the figures and embodiments of the present invention may be arranged and designed in a wide variety of different configurations, and thus, the detailed description of the embodiments of the present invention provided in the following figures is not intended to limit the scope of the claimed invention, but is merely representative of a select embodiment of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the figures and embodiments of the present invention, belong to the scope of protection of the present invention.
It should be noted that: the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, element, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, element, method, article, or apparatus.
As shown in fig. 8, the present invention relates to a non-coaxial implant system comprising an implant 1, an abutment 2, a central screw 3 and a crown 4; the implant 1 and the abutment 2, and the implant 1 and the central screw 3 are connected in a non-coaxial and linear manner, and the abutment 2 and the central screw 3 are connected in a coaxial and linear manner.
In order to avoid the thinner area of the implant 1 corresponding to the end of the central screw 3, the diameter of the implant 1 is increased, and then the implant is gradually reduced towards the neck and the root end.
In order to cut alveolar bone with less abrasion in the implantation process, the part of the implant 1 from the maximum diameter to the root end adopts a deep thread and large thread pitch design, and the part of the implant 1 from the maximum diameter to the neck part adopts a shallow thread and small thread pitch design.
Typically, the thread depth of the deep thread is >0.5mm, the pitch of the coarse pitch is >0.5mm;
the thread depth of the shallow thread is less than or equal to 0.5mm, and the thread pitch of the small thread pitch is less than or equal to 0.5mm.
In order to ensure that the screw hole of the abutment 2 is the lingual side of the crown 4 when the alveolar bone has different inclination degrees, the included angle between the long axis of the implant 1 and the long axis of the abutment 2 or the central screw 3 is designed to be 12-30 degrees.
In order to adapt to the sizes of teeth and the widths of alveolar bones at different positions, the implant 1 is designed to have different diameters, which are generally 3.25mm, 3.5mm, 3.75mm, 4.1mm and 4.5mm.
The features and properties of the present invention are further described in detail below with reference to examples.
The working process of the invention is as follows:
s1, preliminarily observing the width and height of an alveolar bone in an implantation area and the inclination degree of a labial side according to dental CT data, performing three-dimensional reconstruction, simulating implant 1 implantation, measuring the size of an axial included angle between a required implant 1 and an abutment 2 (a central screw 3) when a screw hole is expected to be positioned on the lingual side of a dental crown 4, and using an implant system with an included angle of 15 degrees when a screw hole is required to be drilled on the lingual side of the dental crown 4 as shown in figure 9.
The length of the implant 1 is determined according to the height of the alveolar bone and the missing tooth position, and the diameter of the implant 1 is determined according to the size of the tooth and the width of the alveolar bone.
S2, after preparing the conventional planting cavity, the implanted implant 1 ensures that the screw channel opening of the implant is positioned on the tongue side (figure 9).
And S3, after the implant 1 is subjected to osseointegration, conventionally repairing the implanted dental crown 4 with a hole opened at the lingual side.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A non-coaxial implantation system, which is characterized by comprising an implant (1), an abutment (2), a central screw (3) and a dental crown (4);
a non-coaxial linear connection mode is adopted between the implant (1) and the base station (2) and between the implant (1) and the central screw (3), and a coaxial linear connection mode is adopted between the base station (2) and the central screw (3);
a screw hole is arranged on the lingual side of the dental crown (4);
the diameter of the implant (1) corresponding to the tail end of the central screw (3) is the largest, and the implant gradually becomes thinner towards the neck and the root end of the implant (1).
2. A non-coaxial implant system according to claim 1, wherein the implant (1) is axially angled from the axial centerline of the abutment (2) by 12-30 °.
3. A non-coaxial implant system according to claim 2, wherein the implant (1) is axially angled at 15 ° to the abutment (2).
4. A non-coaxial implant system according to claim 1, wherein the implant (1) is of deep thread, coarse pitch design from the maximum diameter to the root end;
the part of the implant (1) from the maximum diameter to the neck adopts a shallow thread and small-pitch design.
5. The non-coaxial planting system of claim 4, wherein the deep thread has a thread depth >0.5mm and the high pitch has a pitch >0.5mm.
6. The non-coaxial planting system of claim 4, wherein the shallow thread has a thread depth of 0.5mm or less and the small pitch has a pitch of 0.5mm or less.
7. A non-coaxial implant system according to claim 1, wherein the diameter of the implant (1) is determined according to the size of the teeth and the width of the alveolar bone at different positions.
8. A non-coaxial planting system according to claim 7, wherein the diameter of the implant (1) is 3.25mm-4.5mm.
9. The method of designing a non-coaxial planting system as recited in any of claims 1-8, comprising the steps of:
s1, preliminarily observing the width and height of an alveolar bone in an implantation area and the inclination degree of a labial side according to dental CT data, performing three-dimensional reconstruction, simulating implant (1) implantation, measuring the required axial included angle between the implant (1) and an abutment (2) when a screw hole is expected to be positioned on the lingual side of a dental crown (4), and determining the axial inclination angle between the implant (1) and the abutment (2);
s2, determining the diameter and the length of the proper implant (1).
10. The design method of a non-coaxial implant system according to claim 9, wherein in S2, the diameter of the implant (1) is determined according to the sizes of the teeth at different positions and the width of the alveolar bone;
the length of the implant (1) is determined according to the height of the alveolar bone and the missing tooth position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310166719.1A CN115919491A (en) | 2023-02-24 | 2023-02-24 | Non-coaxial planting system and design method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310166719.1A CN115919491A (en) | 2023-02-24 | 2023-02-24 | Non-coaxial planting system and design method thereof |
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| CN115919491A true CN115919491A (en) | 2023-04-07 |
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| CN202310166719.1A Pending CN115919491A (en) | 2023-02-24 | 2023-02-24 | Non-coaxial planting system and design method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130037009A (en) * | 2011-10-05 | 2013-04-15 | 김영수 | Screw hole inclined implant |
| CN203591347U (en) * | 2013-11-18 | 2014-05-14 | 大连三生科技发展有限公司 | Artificial tooth abutment |
| CN106725933A (en) * | 2016-12-23 | 2017-05-31 | 大连三生科技发展有限公司 | A kind of ceramic anti-rotation Angled abutment implant system |
| CN215306865U (en) * | 2021-05-14 | 2021-12-28 | 中国人民解放军陆军军医大学第二附属医院 | Novel oral implant structure |
| WO2022101820A1 (en) * | 2020-11-13 | 2022-05-19 | Gaio Stefano | Angled abutment and method for realizing the same |
-
2023
- 2023-02-24 CN CN202310166719.1A patent/CN115919491A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130037009A (en) * | 2011-10-05 | 2013-04-15 | 김영수 | Screw hole inclined implant |
| CN203591347U (en) * | 2013-11-18 | 2014-05-14 | 大连三生科技发展有限公司 | Artificial tooth abutment |
| CN106725933A (en) * | 2016-12-23 | 2017-05-31 | 大连三生科技发展有限公司 | A kind of ceramic anti-rotation Angled abutment implant system |
| WO2022101820A1 (en) * | 2020-11-13 | 2022-05-19 | Gaio Stefano | Angled abutment and method for realizing the same |
| CN215306865U (en) * | 2021-05-14 | 2021-12-28 | 中国人民解放军陆军军医大学第二附属医院 | Novel oral implant structure |
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