CN102357045B - Hollow abutment capable of connecting with interior of dental implant - Google Patents
Hollow abutment capable of connecting with interior of dental implant Download PDFInfo
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- CN102357045B CN102357045B CN 201110216732 CN201110216732A CN102357045B CN 102357045 B CN102357045 B CN 102357045B CN 201110216732 CN201110216732 CN 201110216732 CN 201110216732 A CN201110216732 A CN 201110216732A CN 102357045 B CN102357045 B CN 102357045B
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Abstract
The invention discloses a hollow abutment capable of connecting with the interior of a dental implant. The hollow abutment is characterized in that an upper part of a repair part section (1) of the hollow abutment is a circular truncated cone of which sectional areas are increased from top to bottom; a lower part of the repair part section (1) is a regular eight-edge prism (1A) of which corners are cambered; the middle transition section (2) is a projecting circular truncated cone of which a side surface is cambered and sectional areas are decreased from top to bottom and is coated with a silver carrying TiO2 antibacterial coating; an upper part of an implant insertion section (3) is a circular truncated cone of which sectional areas are decreased from top to bottom and inclination is in a range of 10 to 12 degrees and an annular groove (3B) is arranged in the surface of the circular truncated cone of the implant insertion section (3); a silicone rubber gasket (3C) is embed into the annular groove (3B); and a lower part of the implant insertion section (3) is regular eight-edge prism (3A) of which corners are cambered. The hollow abutment has the advantages of good fretting damageresistance, good closure, strong corrosion resistance, good antibacterial property, good gum forming function and long service life.
Description
Technical field
The present invention relates to a kind of tooth implant base station for Oral Repair.
Technical background
Along with the development of bone Integration Theory is improved and the clinical practice of many decades, the tooth plantation has become one of focus of repairing technology of dental disappearance, compare with traditional removable denture, fixed denture repair mode, the tooth plantation has the advantages such as attractive in appearance, that comfort level is high, masticatory function is stronger.Although recent research shows 5 years success rates of tooth implant and can reach 96.1%.But along with the further prolongation of active time, the success rate at a specified future date of tooth implant but has the trend of further reduction, follows up a case by regular visits to success rate in external 16 years to be reported as 82.94%, and domestic 11～15 years success rate of following up a case by regular visits to is reported as 62.5%.In numerous tooth implant failure case, tooth implant and base station to be connected the loosening failure phenomenon that waits comparatively common, therefore, the locking countermeasure that is connected of tooth implant and base station has become the key technical problem of further raising tooth implant success rate in long term.
Base station is the primary structure of conduction gmatjpdumamics in the implant denture, at present base station commonly used for tooth implant in the hollow base station that is connected.The reparation segment section of the truncated cone-shaped on hollow base station top closely is connected with the inner chamber of the superstructure of implant denture (artificial tooth is exposed to the part in oral cavity); The bottom is inserted the inner chamber of implantation body and is formed contact surface, and the hollow space that is passed base station by center screw is connected with the female thread of implantation body bottom.
In the process of chewing, implant denture is bearing the periodicity alternate load of different sizes, direction and kind as the tooth replacement body, " base station-superstructure " linkage interface, " base station-implantation body " contact interface " approximate fastening ", small relative displacement has in fact but occured, and its motion amplitude exactly is in the motion amplitude scope of fine motion in the tribology.The damage that this fine motion brings may cause base station contact surface and joint face material loss, base station size variation and cause base station loosening, or cause the base station crack initiation and propagation and so that greatly reduce the fatigue life of base station.
Inventor's early-stage Study shows: fretting damage is the key factor that causes the base station mechanical failure; And the tangential fretting damage of joint face and contact surface is the most serious, and radially comparatively slight with compound fretting damage.
In addition, during plantation was repaired, the soft tissue sealing around the base station had a great impact implantation body's success rate.Obtain good soft tissue sealing, a relatively aseptic microenvironment should be provided, and be conducive to the material surface of cell adhesion.And there is inevitable microgap in the contact interface of " base station-implantation body ", and oral cavity internal corrosion medium (saliva, microorganism etc.) is easy to be penetrated in this special small gap; In the operation process, the base station surface also inevitably can be subject to the pollution of liquid etc. in saliva, blood, the art, and it very easily is corroded.Also reduced the service life of base station.
Summary of the invention
The purpose of this invention is to provide the hollow base station that is connected in a kind of and the tooth implant, the anti-fretting damage performance of this base station is good, closure is good, corrosion resistance is strong, anti-microbial property is good, the gingival forming better function, long service life.
The present invention realizes its goal of the invention, and the technical scheme that adopts is: the hollow base station that is connected in a kind of and the tooth implant, from top to bottom successively by reparation segment section, middle transition section, plant three sections of body inserting paragraphs and consist of, it is characterized in that:
The top of described reparation segment section is downward large round platform gradually, and the bottom is curved positive eight prisms in turning;
The middle transition section for protrude, the side be arc, downward gradually little round platform, and surface-coated is carried silver-colored TiO
2Antimicrobial coating;
The top of planting the body inserting paragraph is that downward gradually little gradient is 10～12 ° round platform, and is provided with ring-shaped groove on the round platform surface, is embedded with silicone rubber gasket in the ring-shaped groove; The bottom of planting the body inserting paragraph is curved positive eight prisms in turning.
Compared with prior art, the invention has the beneficial effects as follows:
One, for the middle transition section that contacts with oral soft tissue, carries silver-colored TiO in its surface-coated
2The relative gnotobasis around the base station can be created and keep to antimicrobial coating, and antibiotic property is good, is conducive to around the base station epithelial cell and adheres to smoothly and finish the soft tissue sealing.
Two, base station is repaired the bottom that segment section is connected with the superstructure inner chamber of implant denture and is planted the body inserting paragraph and the contact position of implantation body's inner chamber, has all adopted curved positive eight prisms in turning.Positive eight prisms make base station both have anti-turning effort, are connected more firmly between base station and superstructure and the implantation body, are difficult for loosening; The stress concentration that the turning of arc has been avoided again the existence of line angle, easily produced when having avoided base station stressed, the cambered surface area has substituted the part area of plane simultaneously, changes tangential fine motion into compound fine motion, has effectively reduced fretting damage.
Three, the body inserting paragraph top of planting of base station is 10-12 ° round platform for downward gradually little gradient, thereby when by center screw base station being connected with the implant inner chamber downwards, the two can form tightr, more firm connection.Experiment showed, that its loosening torque surpasses screw-down torque 85%; The micro-space of this contact interface is less than 10um.The space of contact interface is little, also makes it have good sealing process, can avoid oral cavity internal corrosion medium (saliva, microorganism etc.) to be penetrated in base station-implantation body's contact interface; And the ring-shaped groove that is embedded with silicone rubber gasket is set on this round platform surface, can further reduces the infiltration of antibacterial, further improve closure, antibiotic property and the corrosion resistance at " base station-implantation body " interface.
On the above-mentioned base station inner chamber, the position of matching with the nut lower surface of center screw is the round table surface of 30 ° of inclinations.
Like this, using the nut lower surface is the center screw on 30 ° of inclined planes, can avoid this mating surface of base station inner chamber and the center screw screw rod mating surface of base station inner chamber to form right angle corner, reduces the stress concentration of corner.Increased simultaneously the lifting surface area of this mating surface, can bear larger screw-down torque, made base station more firm with being connected of implant.
Positive eight radius of curvature of arc prismatic and that plant the positive eight prismatic corners of body inserting paragraph of above-mentioned reparation segment section are equal to the length of side in the octagon cross section at place
Doubly.
The effect that alleviates stress concentration and fretting damage of the anti-turning effort that takes into account planar section that like this, can be best and cambered surface part.
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the perspective view of the embodiment of the invention.
Fig. 2 is that the hollow base station of the embodiment of the invention is by center screw and half section structural representation after implantation body links to each other.
The specific embodiment
Embodiment
Fig. 1, Fig. 2 illustrate, and a kind of specific embodiment of the present invention is, the hollow base station that is connected in a kind of and the tooth implant, from top to bottom successively by reparation segment section 1, middle transition section 2, plant 3 three sections of body inserting paragraphs and consist of.Wherein:
The top of described reparation segment section 1 is downward large round platform gradually, and the bottom is positive eight curved prismatic 1A of turning;
The top of planting body inserting paragraph 3 is that downward gradually little gradient is 10～12 ° round platform, and is provided with on the round platform surface, is embedded with silicone rubber gasket 3C among the ring-shaped groove 3B; The bottom of planting body inserting paragraph 3 is positive eight curved prismatic 3A of turning.
On this routine base station inner chamber, the position 1C that matches with the nut lower surface of center screw 4 is the round table surface of 30 ° of inclinations.The radius of curvature of arc of repairing positive eight prismatic 1A of segment section 1 and planting positive eight prismatic 3A corners of body inserting paragraph 3 is equal to the length of side in the octagon cross section at place
Doubly.
Fig. 2 also illustrates, for hollow base station of the present invention by center screw 4 with can form firmly, be connected closely with implantation body 5.
Claims (3)
- One kind with tooth implant in the hollow base station that is connected, from top to bottom successively by reparation segment section (1), middle transition section (2), plant (3) three sections formations of body inserting paragraph, it is characterized in that:The top of described reparation segment section (1) is downward large round platform gradually, and the bottom is curved positive eight prisms (1A) in turning;Middle transition section (2) for protrude, the side be arc, downward gradually little round platform, and surface-coated is carried silver-colored Ti0 2Antimicrobial coating;The top of planting body inserting paragraph (3) is that downward gradually little gradient is 12 ° round platform, and is provided with ring-shaped groove (3B) on the round platform surface, is embedded with silicone rubber gasket (3C) in the ring-shaped groove (3B); The bottom of planting body inserting paragraph (3) is curved positive eight prisms (3A) in turning.
- 2. the hollow base station that is connected in a kind of and the tooth implant according to claim 1 is characterized in that, on the described hollow base station inner chamber, the position (1C) of matching with the nut lower surface of center screw (4) is the round table surface of 30 ° of inclinations.
- 3. the hollow base station that is connected in a kind of and the tooth implant according to claim 1 is characterized in that: positive eight prisms (1A) of described reparation segment section (1) and the radius of curvature of arc of planting positive eight prisms (3A) corner of body inserting paragraph (3) are equal to the length of side in the octagon cross section at placeDoubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110216732 CN102357045B (en) | 2011-08-01 | 2011-08-01 | Hollow abutment capable of connecting with interior of dental implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110216732 CN102357045B (en) | 2011-08-01 | 2011-08-01 | Hollow abutment capable of connecting with interior of dental implant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102357045A CN102357045A (en) | 2012-02-22 |
| CN102357045B true CN102357045B (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110216732 Active CN102357045B (en) | 2011-08-01 | 2011-08-01 | Hollow abutment capable of connecting with interior of dental implant |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103263304A (en) * | 2013-06-07 | 2013-08-28 | 大连三生科技发展有限公司 | Dental implant abutment |
| CN103263303A (en) * | 2013-06-07 | 2013-08-28 | 大连三生科技发展有限公司 | Dental implant device |
| CN107496980A (en) * | 2017-08-03 | 2017-12-22 | 上海市徐汇区牙病防治所 | A kind of surface modifying method of base station |
| CN109567983B (en) * | 2018-11-28 | 2020-12-22 | 北京航空航天大学 | Horn-shaped implant and implantation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2587370Y (en) * | 2002-12-10 | 2003-11-26 | 中国人民解放军第四军医大学口腔医学院 | Novel self-tapping and self-positioning implanting teeth body |
| CN101048113A (en) * | 2004-08-31 | 2007-10-03 | 牙科显象有限责任公司 | Dental implant system and method for the implantation and construction of the implant system |
| CN101810517A (en) * | 2009-02-19 | 2010-08-25 | 杨建军 | Zirconium oxide tooth implantation system |
| CN201642387U (en) * | 2010-05-06 | 2010-11-24 | 江苏创英医疗器械有限公司 | Dental implant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009002947B4 (en) * | 2008-12-12 | 2012-02-02 | Mehrhof Implant Technologies Gmbh | dental implant |
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2011
- 2011-08-01 CN CN 201110216732 patent/CN102357045B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2587370Y (en) * | 2002-12-10 | 2003-11-26 | 中国人民解放军第四军医大学口腔医学院 | Novel self-tapping and self-positioning implanting teeth body |
| CN101048113A (en) * | 2004-08-31 | 2007-10-03 | 牙科显象有限责任公司 | Dental implant system and method for the implantation and construction of the implant system |
| CN101810517A (en) * | 2009-02-19 | 2010-08-25 | 杨建军 | Zirconium oxide tooth implantation system |
| CN201642387U (en) * | 2010-05-06 | 2010-11-24 | 江苏创英医疗器械有限公司 | Dental implant |
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| Publication number | Publication date |
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| CN102357045A (en) | 2012-02-22 |
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