CN110141382A - A kind of dental implant and its implantation methods - Google Patents
A kind of dental implant and its implantation methods Download PDFInfo
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- CN110141382A CN110141382A CN201910458608.1A CN201910458608A CN110141382A CN 110141382 A CN110141382 A CN 110141382A CN 201910458608 A CN201910458608 A CN 201910458608A CN 110141382 A CN110141382 A CN 110141382A
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- screw
- plantation
- base station
- thread
- dental implant
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/70—Tooth crowns; Making thereof
- A61C5/77—Methods or devices for making crowns
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
- A61C8/0025—Self-screwing with multiple threads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0037—Details of the shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0074—Connecting devices for joining an upper structure with an implant member, e.g. spacers with external threads
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention discloses a kind of dental implant and implantation methods, including plantation screw, plantation base station and lock screw, the lower end for planting screw to connect with alveolar bone, and the upper end of plantation screw is arranged in plantation base station；It is fixedly connected between plantation base station and plantation screw using lock screw；The inside of plantation screw is provided through several central through holes, and central through hole is parallel with the plantation axis of screw；The surface of plantation screw is provided with several gradient microporous, and gradient microporous is grown into for osteoid with osteogen；Gradient microporous is laid along the radial of plantation screw, and through the diameter setting of plantation screw；The present invention plants failure by the way that by reducing the elasticity modulus of dental implant in plantation screw central through hole and gradient microporous, improve dental implant rises up into compatibility caused by avoiding due to bone-loss；Implantation methods, easy to operate, healing cycle is short, and planting effect is preferable.
Description
Technical field
The invention belongs to dental implant technical field, in particular to a kind of dental implant and its implantation methods.
Background technique
Modern tooth-planting technology has been developed as one in the mature dentistry of multidisciplinary cutting edge technology support
The scope of a independent studies has been set up more scientific, more reasonable, more perfect a completely new idea and method, tooth-planting
Technology is that the load of dental implants is transferred to the biological tissue of surrounding, have the advantages that compared to traditional false artificial tooth it is significant,
Therefore plantation tooth is rapidly developed in recent years.
Currently, tooth-implanting masticatory function is better than traditional artificial tooth, implantation good, beautiful and comfortable, the disposable implantation of stability etc.
Advantage becomes the first choice of absence of tooth or tooth plastic patients.Existing many mouth cavity planting bodies are substantially three sections, packet
Include the plantation screw, plantation base station and corona of implantation alveolar bone.Plantation base station lower end is connected through a screw thread with plantation screw, is planted
Base station upper end is bonded by cement glue and corona preformed hole.Existing plantation screw is generally entity filling, whole bullet
Property modulus is far longer than the elasticity modulus of 2.398 ± 0.455GPa of jawbone of biological tooth, the hollow implant also having been reported that,
Special construction makes elasticity modulus close to tooth jawbone, but bone-loss increase occurs in clinic, and First Year bone-loss amount is more than
1mm is considered plantation failure.
Summary of the invention
In view of the deficiency of the prior art, the present invention provides a kind of dental implant and its implantation methods, to solve
In the prior art, the elasticity modulus of screw is planted much larger than plantation caused by the elasticity modulus of tooth jawbone or bone-loss increase
The technical issues of failure.
To achieve the above object, the technical solution of the present invention is as follows:
A kind of dental implant, including plantation screw, plantation base station and lock screw, plant lower end and the alveolar bone of screw
The upper end of plantation screw is arranged in connection, plantation base station；It is fixedly connected between plantation base station and plantation screw using lock screw；
The inside of plantation screw is provided through several central through holes, and central through hole is parallel with the plantation axis of screw；Kind
The surface for planting screw is provided with several gradient microporous, and gradient microporous is grown into for osteoid with osteogen；Gradient microporous is along plantation
The radial of screw is laid, and through the diameter setting of plantation screw.
Further, the outer surface for planting screw is provided with the first screw thread and the second screw thread, and the setting of the first screw thread is being planted
The lower end of plantation screw is arranged in the upper end of screw, the second screw thread；First screw thread is fine thread, and the second screw thread is thick spiral shell
Line；Gradient microporous is arranged in the thread pitch of the second screw thread；The screw thread inclination angle of first screw thread is 4 ° -6 °, and the depth of thread is
0.10mm；The screw thread inclination angle of second screw thread is 6 ° -10 °, the wide W0=0.4-0.6P0 of the tooth of the second screw thread, the high h0=0.3- of tooth
0.5P0, wherein P0 is the screw pitch of the second screw thread.
Further, central through hole includes a centre bore and four periphery holes, and centre bore is arranged in plantation screw
On mandrel line, periphery hole is uniformly arranged in the outer circumference of centre bore；The diameter dimension of centre bore is 0.18-0.22mm, week
The diameter dimension of side sky is 0.48-0.5mm.
Further, the diameter dimension of gradient microporous is 40-120 μm；The axis angle of two neighboring gradient microporous is
15°-30°。
Further, plantation screw includes Upper cylindrical section and lower cone segments, and lower cone segments are arranged in Upper cylindrical
The lower part of section is evenly arranged with three leaf bladed self tapping notch in the outer circumference of lower cone segments.
Further, that plants screw is internally provided with pentagon groove, and the upper of plantation screw is arranged in pentagon groove
End；The lower end of plantation base station is set as pentagon boss, plants the pentagon boss of base station and the pentagon groove of plantation screw
It is cooperatively connected.
Further, that plants screw is internally provided with cylindrical hole shape structure, plants and is provided through step inside base station
Through-hole；Lock screw sequentially passes through in the cylindrical hole shape structure of the step through-hole that plantation base station is arranged in and plantation screw；Locking
Screw includes nut and screw rod, and the top of nut is provided with interior hexagonal structure, and screw rod is internally provided with cylinder with plantation screw
Hole shape structure is engaged by screw thread and is fixed.
It further, further include corona, corona is arranged in the top of plantation base station, uses water between corona and plantation screw
Men Ting bonding；Corona is made of 3D printing, specifically: using the former and formpiston in oral cavity, production lacks periodontal tooth
Stamp obtains the pattern of missing tooth by 3-D scanning, finally produces required corona using 3D printing.
Further, screw, plantation base station and plantation screw are planted and is all made of 3D printing production；Plant the outer surface of base station
Intermediate position use nature transition circle cambered surface, for being connect with cortex bone.
A kind of implantation methods of dental implant, comprising the following steps: firstly, cutting the prefabricated implantation hole of cortex bone；Then
Screw placement will be planted in planting hole, healing of wound；When planting screw and bone tissue healing to a certain degree, cortex is cut again
Bone, by plantation base station insertion plantation screw, the plantation base station then passed through with lock screw is fixedly connected with plantation screw.
Compared with prior art, the beneficial effects of the present invention are:
A kind of dental implant of the present invention, by reducing dental implant in plantation screw central through hole and gradient microporous
The elasticity modulus of body, improve dental implant rises up into compatibility, and failure is planted caused by avoiding due to bone-loss；It is logical
The weight that setting central through hole reduces plantation screw is crossed, the plantation original biomechanical property of screw is maintained；Pass through
Gradient microporous is set, realizes osteoid and is grown into osteogen, improves the faying face of plantation screw and alveolar bone, close bone
Gradient microporous promotes bone tissue and plants the quick combination of screw.
Further, by the way that the first screw thread and the second screw thread are arranged on plantation screw, the first screw thread is that plantation screw mentions
The effect of primary stability and dispersive stress has been supplied, the second screw thread remains more bone tissues according to biology Design of Screw Thread,
Evenly dispersed stress effectively prevent the dislocation of plantation screw placement early period, improves plantation survival rate.
Further, central through hole includes centre bore that a diameter dimension is 0.2mm and four diameter dimensions are 0.5mm
Periphery hole realizes the volume reduction amount of plantation screw 5%-7%.
Further, gradient microporous uses diameter dimension for 40-120 μm, realizes human body osteoid and osteoblast is equal
It can grow into, the design of gradient microporous greatly improves the biocompatibility of plantation screw, it is ensured that the healing week of implantation plantation screw
Phase reduces 7 days than common species.
Further, by the way that three leaf bladed self tapping notch are arranged, the contact area of plantation screw and bone tissue is increased, is subtracted
The volume of small plantation screw；After planting screw placement, the three automatic notch of leaf bladed can effectively prevent plantation screw reversely to loosen,
Improve the stability of dental implant.
Further, the pentagon groove by the way that the lower end for planting base station is designed as pentagon boss, with plantation screw
Engagement effectively prevent that the loosening of plantation base station occurs；There is better anti-loosening function under the influence of complex external force；It realizes
Under the conditions of biological load, it can effectively prevent and relatively rotate between corona and plantation screw.
Further, it by 3-D scanning to the reverse of missing corona, obtains adding the outer of beauty than missing tooth dental transition
See pattern.
Further, small dental implant is manufactured using 3D printing technique, realizes one-pass molding plantation screw, kind
Phytyl platform, lock screw, substantially reduce the production cycle while precision is protected；Meanwhile the centre of base station outer surface
Part is designed as nature transition arc, this surface is connect with cortex bone, and stress caused by wedge angle is avoided to concentrate even stress screen
It covers.
A kind of implantation methods of dental implant of the present invention, easy to operate, healing cycle is short, planting effect compared with
It is good.
Detailed description of the invention
Fig. 1 is a kind of dental implant schematic perspective view of the present invention；
Fig. 2 is a kind of dental implant longitudinal profile structure schematic of the present invention；
Fig. 3 is a kind of dental implant horizontal cross-section structure diagram of the present invention；
Fig. 4 is the plantation bolt structure schematic diagram in a kind of dental implant of the present invention；
Fig. 5 is the plantation screw partial enlargement diagram in a kind of dental implant of the present invention；
Fig. 6 is the second helicitic texture schematic diagram on the plantation screw in a kind of dental implant of the present invention；
Fig. 7 is the overlooking structure diagram of the plantation screw in a kind of dental implant of the present invention；
Fig. 8 is the present invention looks up structural representation of the plantation screw in a kind of dental implant of the present invention；
Fig. 9 is the overall structure diagram of the plantation base station in a kind of dental implant of the present invention；
Figure 10 is the present invention looks up structural representation of the plantation base station in a kind of dental implant of the present invention；
Figure 11 is the lock screw structural schematic diagram in a kind of dental implant of the present invention.
Wherein, a kind of plant screw, 2 kinds of plant base stations, 3 lock screws, 4 central through holes, 5 gradient microporous, 6 three leaf bladed self tappings
Notch, 7 pentagon grooves, 8 cylindrical hole shape structures；11 first screw threads, 12 second screw threads；21 pentagon boss, 22 step through-holes；
31 nuts, 32 screw rods；41 centre bores, 42 periphery holes；101 Upper cylindrical sections, 102 lower cone segments.
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, with reference to the accompanying drawing to this hair
Bright embodiment is described in further details.Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
With reference to shown in attached drawing 1-3, the present invention provides a kind of dental implants, including plantation screw 1, plantation base station 2, lock
Determine screw 3 and corona；The lower end of plantation screw 1 is connect with alveolar bone, and the upper end of plantation screw 1, plantation is arranged in plantation base station 2
It is fixedly connected between base station 2 and plantation screw 1 using lock screw 3, the top of plantation base station 2 is arranged in corona；Corona and kind
It plants and is bonded between screw 1 using cement.
With reference to shown in attached drawing 1-7, plants and be provided with the first screw thread 11 and the second screw thread 12 on the outer surface of screw 1, plant
The outer surface of screw 1 is provided with the first screw thread 11 and the second screw thread 12, and the upper end of plantation screw 1 is arranged in the first screw thread 11,
The lower end of plantation screw 1 is arranged in second screw thread 12；First screw thread 11 is fine thread, and fine thread uses thin screw pitch, shallow thread
Close-packed arrays mode；Second screw thread 12 is coarse-pitch thread, and coarse-pitch thread is using coarse pitch thread, the loose arrangement mode of deep thread；Plantation
When upper end on screw 1 uses fine thread, realizes plantation screw 1 and quickly combined growth with cortex bone, locked plantation screw 1
Implant angle and depth, when the lower end of plantation screw 1 uses coarse-pitch thread, the growth for meeting lower end is relatively slow and undertake 80%
Above physiological stress；Plant screw 1 outer surface setting fine thread and coarse-pitch thread, realize with the compact bone substance of alveolar bone with
The different distributions of cancellous bone match.
Plantation screw 1 is internally provided with several central through holes 4, and central through hole 4 is parallel with the plantation axis of screw 1；In
Heart through-hole 4 includes a centre bore 41 and four periphery holes 42, and centre bore 41 is arranged on the central axis of plantation screw 1, week
Lateral opening 42 are uniformly arranged in the outer circumference of centre bore 41；The setting of five central through holes can achieve the volume reduction of 5%-7%
Amount, while keeping the original biomechanical property of dental implant；Plant 1 volume of screw reduction so that bone growth space
It can use, and therefore provide preferably primary stability, and effectively reduce elasticity modulus.
The surface of plantation screw 1 is provided with several gradient microporous 5, and gradient microporous 5 is grown into for osteoid with osteogen；Ladder
It spends micropore 5 to lay along the radial of plantation screw 1, and through the diameter setting of plantation screw 1.Gradient microporous 5 is arranged in the second spiral shell
In the thread pitch of line 12, threaded line evenly distributed setting of the gradient microporous 5 along the second screw thread 12；The size of gradient microporous 5 is only
Osteoid is allowed to grow into osteogen, so that plantation screw 1 and alveolar bone faying face are bigger, gradient microporous 5 is close bone micropore,
Bone tissue is promoted quickly to be combined with plantation screw 1.
Planting screw 1 includes Upper cylindrical section 101 and lower cone segments 102, and lower cone segments 102 are arranged in Upper cylindrical
The lower part of section 101；Pentagon groove 7 and cylindrical hole shape structure 8 are provided in upper cone section 101, the setting of pentagon groove 7 exists
The upper end of Upper cylindrical section 101, pentagon groove 7 are used to be cooperatively connected with the lower end of plantation base station 2；Cylindrical hole shape structure 8 is set
It sets in the lower part of pentagon groove 7, the upper end of cylindrical hole shape structure 8 is connected to pentagon groove 7；Cylindrical hole shape structure 8 it is interior
Internal screw thread is provided on wall, for connecting with lock screw 3.
Three leaf bladed self tapping notch 6 are evenly arranged in the outer circumference of lower cone segments 102；Three leaf bladed self tapping notch
6 increase the contact area of plantation screw 1 and bone tissue, while reducing the volume of plantation screw 1, have three leaf bladed self tappings
After the plantation screw 1 of notch 6 is implanted into, the reversed loosening of plantation screw 1 is avoided, effectively increases the stability of plantation screw 1.
The stress concentration of plantation 1 lower end of screw is reduced by the way that three leaf bladed self tapping notch 6 are arranged in the lower end of plantation screw 1, is reduced
The stress shielding of local bone tissue, natural bone can be rapidly performed by itself remodeling, kind near three leaf bladed self tapping notch 6
The densification for planting 1 surrounding sclerotin of screw improves the speed of Integrated implant；Meanwhile three leaf bladed self tapping notch 6 structure design mention
The high stability of plantation screw, bone starts growth and fills its space after plantation screw 1 is implanted into, and plants screw 1 with regard to nothing
Method reverses.
The inside of plantation screw 1 is provided through several central through holes 4, and central through hole 4 and the axis for planting screw 1 are flat
Row improves the volume reduction amount of plantation screw 1, maintains kind by the way that longitudinal center's through-hole 4 is arranged inside plantation screw 1
Plant the original biomechanical property of screw 1；Central through hole 4 includes that a centre bore 41 and four periphery holes 42, centre bore 41 are set
It sets on the central axis of plantation screw 1, periphery hole 42 is uniformly circumferentially positioned in the outer circumference of centre bore 41.
With reference to shown in attached drawing 1-3,8,9, the lower end of plantation base station 2 is set as pentagon boss 21, plants five sides of base station 2
The pentagon groove 7 of shape boss 21 and plantation screw 1 is cooperatively connected.It plants recessed using pentagon between screw 1 and plantation base station 2
Slot 7 is connect with the dissymmetrical structure of pentagon boss 21, is avoided plantation screw 1 and is planted the rotation between base station 2, in biology
Under loading condiction, it can effectively prevent and relatively rotate between corona and plantation screw 1.Run through inside plantation base station 2 and sets
It is equipped with step through-hole 22；Lock screw 3 sequentially passes through the cylinder of the step through-hole 22 that plantation base station 2 is arranged in and plantation screw 1
In hole shape structure 8, realizes plantation screw 1 and be fixedly connected with plantation base station 2.Plant the intermediate position of the outer surface of base station 2
Stress caused by wedge angle is avoided to concentrate even stress shielding for connecting with cortex bone using nature transition circle cambered surface.
With reference to shown in attached drawing 1-3,10, lock screw 3 sequentially passes through the step through-hole 22 that plantation base station 2 is arranged in and plantation
In the cylindrical hole shape structure 8 of screw 1；Lock screw 3 includes nut 31 and screw rod 32, and the top of nut 31 is provided with interior hexagonal knot
The upper end of structure, screw rod 31 is fixedly connected with nut 32, and the lower end of screw rod 31 is provided with external screw thread, the external screw thread of 31 lower end of screw rod with
The internal screw thread for planting the cylindrical hole shape structure 8 in screw 1, which engages, to be fixed, and realizing will be with a kind of screw plant of plantation by screw rod 31
Base station 2 is fixedly connected.
The top of plantation base station 2 is arranged in corona, is bonded between corona and plantation screw 1 using cement；Corona uses
3D printing production, specifically: using the former and formpiston in oral cavity, production lacks periodontal dental impressions, by 3-D scanning,
The pattern of missing tooth is obtained, finally produces required corona using 3D printing.
Embodiment
A kind of dental implant, including plantation screw 1, plantation base station 2, lock screw 3 and corona are present embodiments provided,
Plantation screw 1, plantation base station 2, lock screw 3 and corona are all made of 3D printing and are made.
First screw thread 11 uses the fine thread that screw thread inclination angle is 0.10mm for 4 ° -6 ° and the depth of thread, and the first screw thread 11 is set
It sets in the upper end of plantation screw 1, realizes and grown with quick combine of cortex bone；It being capable of quick lock in by the first screw thread 11
The implant angle and implantation depth of screw 1 are planted, provides the stability of initial planting for plantation screw 1.
Second screw thread 12 uses screw thread inclination angle for 6 ° of -10 ° of coarse-pitch thread, the tooth of coarse-pitch thread wide W0=0.4-0.6P0, h0=
0.3-0.5P0, wherein P0 is the screw pitch of coarse-pitch thread；Preferably, the depth of thread is the coarse-pitch thread of 0.15-0.25mm；Second screw thread
12 be arranged in plantation screw 1 lower end, plantation screw 1 lower end growth it is relatively slow, with undertake dental implant
80% or more physiological stress；Second screw thread 12, which can be realized, retains relatively large number of bone tissue, and stress condition is relatively uniform.
Central through hole 4 includes a centre bore 41 and four periphery holes 42, and the diameter dimension of centre bore 41 is 0.18-
0.22mm, the diameter dimension of periphery hole 42 are 0.48-0.5mm, and central through hole 4 is that plantation screw 1 provides the volume reduction of 5%-7%
Amount maintains the plantation original biomechanical property of screw 1.
Gradient microporous 5 is arranged in the thread pitch of the second screw thread 12, and gradient microporous 5 is along the threaded line side of the second screw thread 12
To evenly distributed；Gradient microporous 5 is connected to through the radius for planting screw 1, one end of gradient microporous 5 with centre bore 41, the other end
It is connected to the outer surface of plantation screw 1；The diameter dimension of gradient microporous 5 is 40-120 μm, the axis of two neighboring gradient microporous 5
Angle is 15 ° -30 °, meets the growing into plantation screw 1 of osteoid and osteogen, so that plantation screw 1 and alveolar bone knot
Conjunction face is bigger, and close bone micropore promotes bone tissue to be combined quickly with plantation screw 1；The design of gradient microporous 5 greatly improves biology
Compatibility reduces the healing cycle of implantation plantation screw 17 days than common species.
By the way that central through hole 4 and gradient microporous 5 is arranged on plantation screw 1, reduce the volume of dental implant with again
Amount, provides space for bone growth, effectively reduces elasticity modulus, improves biocompatibility.
The lower end setting of screw 1 is planted there are four three leaf bladed self tapping notch 6, reduces and plants 1 lower end of screw
Stress is concentrated, and the stress shielding of local bone tissue is reduced, and is increased the contact area of plantation screw and bone tissue, is reduced plantation
The volume of screw；Natural bone can be rapidly performed by itself remodeling near three leaf bladed self tapping notch 6, plant around screw 1
The densification of sclerotin improves the speed of Integrated implant；Meanwhile three the design of leaf bladed self tapping notch 6 improve plantation screw 1
Stability, bone starts its space of growth filling after plantation screw 1 is implanted into, and plantation screw 1 can not just reverse.
Plantation screw 1 of the present invention is adopted as Ti6AL4V, and plantation screw 1 uses 3D printing one-pass molding, plants spiral shell
The surface roughness of nail 2 is 10-15 μm.
The lower end of plantation base station 2 is set as pentagon boss 21, avoids hexagonal symmetry structure in the prior art, existing
The most of plantation base stations having are the locking of hexagon internal thread, because of the symmetry characteristic of its stress, may cause interior hexagon and plant
It plants to exist between screw and connects untight problem, or gap occur, in the sufficiently complex oral cavity of environment, easily cause bacterium
It breeds, thus a series of problems, such as inducing inflammation.The present invention uses the dissymmetrical structure of pentagon boss 21, realizes in biology
Under loading condiction, it can effectively prevent and relatively rotate between corona and plantation screw 1；In the outer surface for planting base station 2
Between partially use nature transition arc, natural transition arc connect with cortex bone.
External screw thread is provided on the screw rod 31 of lock screw 3, the internal screw thread of the cylindrical hole shape structure 8 of screw 1 is planted in cooperation,
Screw 1 will be planted by lock screw 3 by realizing is fixedly connected with plantation base station 2.
The present invention plants base station 2 and lock screw 3 is all made of 316L, plants base station 2 and lock screw 3 using in 3D printing
One-pass molding respectively, plantation 2 surface roughness of base station is about 8 ± 2 μm.
Corona is with reference to the form for facing tooth, when corona makes, using the oral cavity former and formpiston of patient, produces patient's missing
Periodontal dental impressions inversely find out missing tooth substantially pattern by 3-D scanning, and manual intervention in addition designs for patient
The missing corona of individual character.Corona material is CoCr alloy, and by 3D printing one-pass molding, crown surfaces roughness is about 8 μm, firmly
Degree is 370HV, reduces hardness with heat treatment method, increases roughness by blasting treatment, final to carry out porcelain processing.
A kind of dental implant of the present invention, by being provided with central through hole and surface graded micro- in plantation screw
Hole, this composite structure reduce elasticity modulus, improve biocompatibility；Respectively not according to the compact bone substance of alveolar bone and cancellous bone
Two groups of combination screw threads with feature in plantation screw outer surface, micro- screw thread provide primary stability and dispersive stress, the thick spiral shell in lower end
Line retains more bone tissues according to biology Design of Screw Thread, and evenly dispersed stress effectively prevent the dislocation of implantation early period, mentions
Height plantation survival rate；The asymmetric pentagon of base station design has better anti-loosening function under the influence of complex external force；It is logical
3-D scanning software is crossed to the reverse of missing corona, its structural form of manual intervention, available than missing tooth in addition
More beautiful exterior appearance；Small combination planting body is manufactured using 3D printing technique, and screw, kind can be planted with one-pass molding
Phytyl platform, lock screw and corona, substantially reduce the production cycle while precision is protected.
Above-described dental implant, due to its small volume and complicated composite structure, with machining difficulty it is big,
Time-consuming.In the dental implant production of the present embodiment, it can be manufactured by 3D printer in the case where being adjusted to reasonable running parameter,
Product meets desired effect.
The present invention also provides a kind of implantation methods of dental implant, comprising the following steps:
Firstly, cortex bone is cut, it is prefabricated on alveolar bone to obtain implantation hole；
Then, the lower cone segments for planting screw 1 are bored the implantation hole in 102 implantation steps 1 to enter, healing of wound；
Secondly, cutting cortex bone again when planting screw 1 and bone tissue heals into predeterminable level；
Secondly, by plant base station 2 pentagon boss 21 insertion plantation screw 1 pentagon groove 7 in, and with lock spiral shell
Nail 3 passes through plantation base station 2 and engages with the internal screw thread for planting screw 1；
Finally, corona and plantation screw are bonded by cement.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification to the above embodiments, change and equivalent structural changes, still fall within skill of the present invention
In the protection scope of art scheme.
Claims (10)
1. a kind of dental implant, which is characterized in that including plantation screw (1), plantation base station (2) and lock screw (3), plantation
The lower end of screw (1) is connect with alveolar bone, and plantation base station (2) setting is in the upper end of plantation screw (1)；Plant base station (2) and kind
It plants and is fixedly connected between screw (1) using lock screw (3)；
The inside of plantation screw (1) is provided through several central through holes (4), the axis of central through hole (4) and plantation screw (1)
In parallel；The surface of plantation screw (1) is provided with several gradient microporous (5), and gradient microporous (5) is long for osteoid and osteogen
Enter；Gradient microporous (5) is laid along the radial of plantation screw (1), and through the setting of the diameter of plantation screw (1).
2. a kind of dental implant according to claim 1, which is characterized in that the outer surface of plantation screw (1) is provided with
First screw thread (11) and the second screw thread (12), the first screw thread (11) setting is in the upper end of plantation screw (1), the second screw thread (12)
It is arranged in the lower end of plantation screw (1)；First screw thread (11) is fine thread, and the second screw thread (12) is coarse-pitch thread；Gradient microporous
(5) it is arranged in the thread pitch of the second screw thread (12)；The screw thread inclination angle of first screw thread (11) is 4 ° -6 °, and the depth of thread is
0.10mm；The screw thread inclination angle of second screw thread (12) is 6 ° -10 °, the wide W0=0.4-0.6P0 of tooth of the second screw thread (12), the high h0 of tooth
=0.3-0.5P0, wherein P0 is the screw pitch of the second screw thread (12).
3. a kind of dental implant according to claim 1, which is characterized in that central through hole (4) includes a centre bore
(41) it is arranged on the central axis of plantation screw (1) with four periphery holes (42), centre bore (41), periphery hole (42) is uniformly set
It sets in the outer circumference of centre bore (41)；The diameter dimension of centre bore (41) is 0.18-0.22mm, the diameter of periphery sky (42)
Having a size of 0.48-0.5mm.
4. a kind of dental implant according to claim 1, which is characterized in that the diameter dimension of gradient microporous (5) is 40-
120μm；The axis angle of two neighboring gradient microporous (5) is 15 ° -30 °.
5. a kind of dental implant according to claim 1, which is characterized in that plantation screw (1) includes Upper cylindrical section
(101) it is arranged with lower cone segments (102), lower cone segments (102) in the lower part of Upper cylindrical section (101), lower cone segments
(102) three leaf bladed self tapping notch (6) are evenly arranged in outer circumference.
6. a kind of dental implant according to claim 1, which is characterized in that plantation screw (1) is internally provided with five
Side connected in star (7), pentagon groove (7) setting is in the upper end of plantation screw (1)；The lower end of plantation base station (2) is set as five sides
The pentagon groove (7) of shape boss (21), the pentagon boss (21) and plantation screw (1) of planting base station (2) is cooperatively connected.
7. a kind of dental implant according to claim 1, which is characterized in that plantation screw (1) is internally provided with circle
Post holes shape structure (8), plantation base station (2) is internal to be provided through step through-hole (22)；Lock screw (3) sequentially passes through setting and exists
It plants in the step through-hole (22) of base station (2) and the cylindrical hole shape structure (8) of plantation screw (1)；Lock screw (3) includes nut
(31) and screw rod (32), the top of nut (31) are provided with interior hexagonal structure, the inside setting of screw rod (31) and plantation screw (1)
There is cylindrical hole shape structure (8) to engage by screw thread to fix.
8. a kind of dental implant according to claim 1, which is characterized in that further include corona, corona setting is being planted
The top of base station (2) is bonded between corona and plantation screw (1) using cement；Corona is made of 3D printing, specifically:
Using the former and formpiston in oral cavity, production lacks periodontal dental impressions and obtains the pattern of missing tooth by 3-D scanning,
Finally required corona is produced using 3D printing.
9. a kind of dental implant according to claim 1, which is characterized in that plantation screw (1), plantation base station (2) and
Plantation screw (3) is all made of 3D printing production；The intermediate position for planting the outer surface of base station (2) uses nature transition circle cambered surface,
For being connect with cortex bone.
10. a kind of implantation methods of dental implant described in -9 any one according to claim 1, which is characterized in that including with
Lower step: firstly, cutting the prefabricated implantation hole of cortex bone；Then plantation screw (1) is implanted in hole, healing of wound；Work as kind
It plants screw and bone tissue heals to a certain degree, cut cortex bone again, plantation base station (2) is inserted into plantation screw (1), then
The plantation base station (2) passed through with lock screw (3) is fixedly connected with plantation screw (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458608.1A CN110141382A (en) | 2019-05-29 | 2019-05-29 | A kind of dental implant and its implantation methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458608.1A CN110141382A (en) | 2019-05-29 | 2019-05-29 | A kind of dental implant and its implantation methods |
Publications (1)
| Publication Number | Publication Date |
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| CN110141382A true CN110141382A (en) | 2019-08-20 |
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| CN201910458608.1A Pending CN110141382A (en) | 2019-05-29 | 2019-05-29 | A kind of dental implant and its implantation methods |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451136A (en) * | 2020-11-13 | 2021-03-09 | 北京联袂义齿技术有限公司 | Preparation method of 3D printed dental implant |
| CN113413224A (en) * | 2021-06-21 | 2021-09-21 | 哈尔滨工程大学 | Novel porous antibacterial implant based on 3D printing technology and manufacturing method thereof |
| CN115317165A (en) * | 2022-08-22 | 2022-11-11 | 吉林大学 | Load platform for wearable equipment |
-
2019
- 2019-05-29 CN CN201910458608.1A patent/CN110141382A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451136A (en) * | 2020-11-13 | 2021-03-09 | 北京联袂义齿技术有限公司 | Preparation method of 3D printed dental implant |
| CN112451136B (en) * | 2020-11-13 | 2022-02-18 | 北京联袂义齿技术有限公司 | Preparation method of 3D printed dental implant |
| CN113413224A (en) * | 2021-06-21 | 2021-09-21 | 哈尔滨工程大学 | Novel porous antibacterial implant based on 3D printing technology and manufacturing method thereof |
| CN115317165A (en) * | 2022-08-22 | 2022-11-11 | 吉林大学 | Load platform for wearable equipment |
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