CN108309480A - A kind of dental implant - Google Patents

Abstract

The invention discloses a kind of dental implants, including the implant portion being implanted into alveolar bone and abutment portion；Wherein, implant main part and cone portion periphery are provided with double thread, and the crest top land of double thread forms cylindrical surface and circular conical surface；Implant main part double thread forms up big and down small taper surface in bottom of the tooth face；Implant portion has good bone-cutting and Bone condensing effect in alveolar bone, and it is reverse tapered shape to have better stability, implant shoulder portion, and the minim gap formed with bone wall is conducive to the full and Regeneration of Alveolar Bone of area of new bone；Abutment portion is equipped with the anti-rotation structure of the improvement tripartite's boss closed with implant portion endoporus stage casing improvement tripartite's groove phase scarf；The positive cone round platform surface in implant portion endoporus epimere cone Morse's taper face and abutment portion, it is all made of the processing of ultrasonic surface rolling techniques, keep the respective outer side edges of implant portion and abutment portion more accurate, improve and reduce Micro blazed-grating problem, screw in implant more convenient and quicker when realizing operation, base station is more acurrate in place when reparation.

Description

A kind of dental implant

Technical field

The invention belongs to oral cavity implanting tooth technical fields, and in particular to a kind of with Bone condensing ability and improvement Micro blazed-grating Dental implant.

Background technology

Since early 1980s, oral implantology is that dentistry circle opens a brand-new field, and plantation is repaired As the reliable reparation means developed rapidly, consequence is obtained in dentistry field.Dental implant conduct The artificial tooth root of retention device for false has been widely used in the single tooth defect in oral cavity, part tooth defect and dental pattern and has lacked The repairing and treating of mistake.Currently, dental implant type is various, but still remains many problems, be significantly improved space, wherein How implant portion reduces wound, more primary stability when being implanted into alveolar bone, how superstructure reduces fine motion, Micro blazed-grating is kind Implant is always in one of improved target.

Invention content

The defects of for the above-mentioned prior art and insufficient, the object of the present invention is to provide a kind of dental implants, pass through conjunction The morphosis of reason design implant portion double thread, realizing implant portion, there is good bone-cutting and Bone condensing to make in alveolar bone With with better primary stability；Design implant shoulder portion is that reverse tapered shape is formed by minim gap with bone wall, more favorably In the full of area of new bone, contribute to the osteanagenesis of alveolar bone；Design the respective outer side edges in implant portion and abutment portion and in metal watch The improved treatment in face reinforces the accurate connection of implant and base station and anti-rotation function, reduces the Micro blazed-grating of superstructure, and when operation revolves Enter implant more convenient and quicker, base station is more acurrate in place when reparation, avoids the generation of various complication.

To achieve the goals above, the technical solution adopted by the present invention is a kind of dental implant, including in implantation alveolar bone Implant portion, implant portion periphery is followed successively by implant shoulder portion, implant main part and implant cone portion from top to bottom, wherein implant Main part and implant cone portion periphery are provided with double thread, and implant main part double thread crest top land forms cylindrical surface, implant master The bottom of the tooth face of body portion double thread forms up big and down small taper surface.

The double thread structure includes major thread tooth and minor thread tooth, and wherein major thread tooth is angular thread tooth, minor thread Tooth is half of angular thread tooth being arranged in angular thread tooth lower part side root, and major thread tooth and the crest top land of minor thread tooth are flat Row；Double thread screw pitch is 0.7mm~1.2mm, and angle of thread is 60 °, wherein the high 0.25mm~0.55mm of major thread tooth, addendum width 0.1mm~0.4mm, minor thread tooth high 0.08mm~0.12mm, addendum width 0.09mm.

The implant main part double thread is divided into three sections from top to bottom, the natural transition from low to high of double thread tooth height, double spiral shells The descending natural transition of line addendum width；Wherein, a height of 0.25mm~0.35mm of epimere tooth, addendum width be 0.4mm~ 0.3mm；A height of 0.35mm~the 0.45mm of stage casing tooth, addendum width are 0.3mm~0.2mm；The a height of 0.45mm of hypomere tooth~ 0.55mm, addendum width are 0.2mm~0.1mm.

The length of the implant cone portion is the one third of implant portion overall length, and taper is 4 °~6 °, periphery double thread Parameter is identical as the hypomere of implant main part, the high highest of double thread tooth of whole section of implant cone portion, and addendum width is minimum, outside it The double thread crest top land in week forms circular conical surface；Implant cone portion periphery has been placed equidistant at least two self tapping slot.

Implant shoulder portion is collapsed to implant portion platform suitable for reading, forms back taper frustum cone structure, and taper is 6 °~12 °, Length be 1.2mm~2mm, surface setting fine thread be round thread, screw pitch be 0.12mm~0.16mm, the high 0.4mm of tooth~ 0.6mm。

Further include the abutment portion that hypomere is fixed in implant portion, the abutment portion periphery is followed successively by back taper circle from top to bottom Platform, groove, positive curved shape round platform, positive cone round platform and cylindrical round platform, abutment portion are internally provided with through-hole；Positive cone round platform, Cylindrical round platform and the anti-rotation boss being arranged on the outside of cylindrical round platform constitute the base station inserting paragraph for being inserted into implant portion, and base station is inserted Enter the through implant portion endoporus cylindrical surface of section, one is formed between the lower platform suitable for reading along interface and implant portion of positive curved shape round platform The table top of a platform transfer.

Anti- rotation boss is improvement tripartite's boss, and for form between tripartite and three flowers, improvement tripartite's boss protrudes part Radius is 0.25mm~0.4mm, and height is 1.5mm~2.5mm.

Have in the implant portion and can be inserted into abutment portion to form the endoporus of interpolation connection, endoporus is divided into three sections, and epimere is Length 1.5mm~2.5mm, taper are 3 °~9 ° of implant endoporus cone Morse's taper face, stage casing be long 2.5mm~ The cylindrical surface of 3.5mm, diameter 2.2mm~2.6mm, hypomere are the implant internal threads that diameter is less than stage casing；In implant portion endoporus Stage casing cylindrical surface position is equipped with the anti-rotation groove closed with the anti-rotation boss phase scarf of abutment portion, and the two forms anti-rotation structure, anti-rotation The position of groove is less than implant 0.8mm~1.6mm suitable for reading.

The positive cone round platform outer surface of the abutment portion and the implant endoporus cone Morse's taper face appearance in implant portion Face is all made of ultrasonic surface rolling techniques modification.

Implant portion is to wear gum implant, and implant shoulder portion is that a periphery is followed successively by and wears gum implant groove and wear gum from top to bottom The rotary body of implant back taper round platform.

Compared with prior art, the present invention at least has the advantages that, passes through implant main part and implant cone portion The external screw thread of periphery setting, and the double thread structure of the major thread tooth and minor thread tooth composition of unique design is used, it enhances Coordinate between implant portion and alveolar bone, increase the synosteosis area of planting body and alveolar bone, effectively improves implant portion in tooth Stability in slot bone, and screw in implant more convenient and quicker.

Further, due to the natural transition from low to high of the tooth height of double thread, the descending natural transition of addendum width is planted The bottom of the tooth face of phosphor bodies portion double thread forms up big and down small taper surface, and top thread is relatively shallow and blunt, lower thread tooth phase To deep and sharp, make it during planting body screws in alveolar bone, implant double thread is from the automatic gradual mistake of tapping ability It crosses to automatic Bone condensing ability, enhances planting body in the initial stage stationarity of alveolar bone, effectively improve therapeutic effect.And And implant main part and cone portion periphery use the double thread unique structure design of major thread tooth and minor thread tooth composition, Middle major thread tooth is angular thread tooth, and minor thread tooth is half of angular thread being arranged in big angular thread tooth lower part side root Tooth, major thread tooth are parallel with the crest top land of minor thread tooth.Double thread design enhances to be coordinated between planting body and alveolar bone, is increased The synosteosis area of planting body and alveolar bone effectively improves stability of the implant portion in alveolar bone, and screws in implant more It is convenient and efficient.

Further, implant shoulder portion is a back taper round platform, after preparing plantation nest and screwing in planting body, due to back taper Shoulder and bone wall are formed by minim gap and are more conducive to the full of area of new bone, contribute to the osteanagenesis of alveolar bone, make compact bone with Planting body preferably completes synosteosis, reaches strict bone sealing.

Further, shoulder portion fine thread can increase in the cortex bone edge implant of stress concentration and the contact surface of bone tissue Product, reinforces the early stage maintenance of cortex bone.

Further, since implant centrum portion periphery double thread parameter is identical as the hypomere of implant main part, i.e., tooth height is most Height, tooth top is minimum, and the double thread crest top land in implant cone portion periphery forms circular conical surface, not only improves planting body and screws in alveolar bone When navigation, also play the role of at first cut alveolar bone.

Further, the self tapping slot that implant cone portion periphery is placed equidistant with strengthens planting body and is bored in no tapping Perfect cutting, alveolar bone is smoothly screwed in convenient for planting body portion, and plays the role of storing bone bits.

Further, it is convex to be equipped with the improvement tripartite closed with implant portion endoporus stage casing improvement tripartite's groove phase scarf for abutment portion Platform, the form of boss make base station when being inserted into planting body between tripartite and three flowers, can rigidly be accurately positioned and With smooth in place.It is best to improve tripartite's groove and boss number three, both ensure that and has judged the accurate of direction when base station is in place Property, also avoid the multi-direction uncertainty brought.

Further, the appearance of the outer surface of abutment portion positive cone round platform and implant portion endoporus cone Morse's taper face Face is all made of the processing of ultrasonic surface rolling techniques, promotes matallic surface layer crystal grain nanosizing, the surface that can significantly reduce material thick Ultraprecise state is presented in rugosity value, and the position using this technology for most critical between planting body and base station improves well The Micro blazed-grating problem that traditional technology easily occurs avoids planting tooth complication caused by bacterium infection.

Further, it is because implant and base station are one that implant portion, which is also designed to the advantages of wearing gum implant, wearing gum implant, Body, it can prevent from connecting generated fine motion degree and Micro blazed-grating problem due to base station, treatment procedure and treatment time can be shortened, Tooth complication is planted caused by avoiding bacterium descending infection.

Further, implant shoulder portion is collapsed to implant portion platform suitable for reading, forms back taper round platform, and taper is 6 °~12 ° Length is 1.2mm~2mm.After the completion of prepared by implant operation plantation nest, due to back taper shoulder be formed by with bone wall it is small Gap is more advantageous to the full of area of new bone, contributes to the osteanagenesis of alveolar bone, keep the synosteosis of alveolar bone and planting body more preferable, Reach the sealing of strict bone, to enhance the fixed effect in implant portion, alleviate sufferer pain, ensure that planting body at Work(.

Description of the drawings

Fig. 1 is three block diagrams of dental implant of the present invention.

Fig. 2 is the screw thread and cross-sectional view in implant portion of the present invention.

Fig. 3 is structure schematic diagram inside implant portion of the present invention spiral shell.

Fig. 4 is abutment portion structural schematic diagram of the present invention.

Fig. 5 is that the present invention wears gum implant structure schematic diagram.

Fig. 6 is improvement tripartite's boss structure schematic diagram.

In attached drawing：4, implant internal thread, 5, implant endoporus cylindrical surface, 10, implant portion, 11, implant shoulder portion, 12, implant Main part, 13, implant endoporus cone Morse's taper face, 14, anti-rotation groove, 15, shoulder portion fine thread, 16, double thread, 17, Implant centrum portion, 18, self tapping slot, 19, implant portion platform suitable for reading, 20, abutment portion, 21, base station inserting paragraph, 22, lower along interface, 23, positive cone round platform, 24, positive curved shape round platform, 25, base station corona section, 26, back taper round platform, 27, base station groove, 28, slope Mouthful, 29, groove lower edge, 30, anti-rotation boss, 31, cylindrical round platform, 32, wear gum implant, 33, base station it is suitable for reading, 34, centralized positioning Bolt, 49, wear gum implant groove, 50, wear gum implant back taper round platform, 51, double thread tooth it is high, 52, double thread tooth top, 53, double Thread bottom.

Specific implementation mode

The present invention will be further described with reference to the accompanying drawings and detailed description.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, dental implant of the present invention includes implant portion 10, abutment portion 20 and centralized positioning spiral shell Bolt 34；Implant main part 12 and 17 periphery of implant cone portion are provided with the double thread 16 that tooth form is angular thread tooth, in implant shoulder Platform portion 11 is provided with the fine thread 15 that tooth form is round thread, and implant portion 10 passes through fine thread 15 and double thread 16 and alveolar ridge knot It closes；17 periphery of implant cone portion is equidistantly equipped at least 2~3 self tapping slots 18, strengthens planting body and has been bored in no tapping Beautiful cutting, and play the role of storing bone bits；Abutment portion 20 is justified by base station inserting paragraph 21, the positive curved shape for determining to wear gum height Platform 24 and base station corona section 25 are constituted, and centralized positioning bolt 34 passes through the base station of abutment portion suitable for reading 33 to screw in implant internal thread 4 will Implant portion and abutment portion are connected as one.The fine thread 15 of 11 surface of implant shoulder portion setting is round thread, screw pitch 0.12mm High 0.4mm~the 0.6mm of~0.16mm, tooth, the starting of round thread and the ending round and smooth no corner angle of nature.In shoulder portion, fine thread is set 15, it is possible to increase in the cortex bone marginal species implant of stress concentration and the contact area of bone tissue, reinforce the early stage maintenance of cortex bone. Fine thread 15 has from implant portion platform 19 suitable for reading with a distance from 0.06mm~0.20mm, to prevent from going out at implant portion platform 19 suitable for reading Existing gap is conducive to the complete of platform transfer table top.

In implant portion due to devising double thread 16, and the natural transition from low to high of double thread tooth high 51,52 width of tooth top Descending nature transition gradually increases, addendum width is gradually reduced, screw thread in implant main part lower part as tooth is high Tooth is relatively deep and sharp, during screwing in implant to alveolar bone, 12 double thread of implant main part by the high highest part of tooth and The least part of tooth top screws in alveolar bone and cuts bone tissue at first, has certain automatic tapping ability, and is planting Phosphor bodies portion top, with the gradual attenuating of tooth high 51, the gradual increase of 52 width of tooth top, thread is relatively shallow and blunt, implant Rational Bone condensing is gradually carried out to alveolar bone, makes it during planting body screws in alveolar bone, implant double thread 16 is from tool There is automatic tapping ability to be gradually transitions with automatic Bone condensing ability, due to planting body alveolar bone is first cut again by The progressive rational Bone condensing of row, the binding force capableing of between the promotion implant portion of high degree and alveolar bone make planting body in tooth Slot bone interior energy reaches preferably firm, and realize implant portion has better stability in alveolar bone, not only reduces operation Wound also ensures the success of Osseointegrated implants.

As shown in Fig. 2, implant shoulder portion 11 is back taper round platform, taper is 6 °~12 °, and length is 1.2mm~2mm, On be designed with fine thread 15, be conducive to the full of area of new bone since back taper shoulder is formed by minim gap, make compact bone with The synosteosis of planting body is more preferable, reaches strict bone sealing；Implant main part 12 and 17 periphery of implant cone portion use greatly 16 unique structure of the double thread design of thread and minor thread tooth composition, wherein major thread tooth are angular thread tooth, minor thread tooth For half of angular thread tooth for being arranged in big angular thread tooth lower part side root, major thread tooth and the crest top land of minor thread tooth are flat Row, and 12 externally threaded tooth top of implant main part, 52 face forms cylindrical surface, 53 face of externally threaded bottom of the tooth forms up big and down small Taper surface, 17 externally threaded tooth top of implant cone portion, 52 face form circular conical surface；Double thread design enhances planting body and alveolar bone Between coordinate, increase the synosteosis area of planting body and alveolar bone, effectively improve stability of the implant portion in alveolar bone, And screw in implant more convenient and quicker.

As shown in Fig. 2, the screw pitch of 17 periphery double thread of implant main part 12 and cone portion is 0.7mm~1.2mm, angle of thread It it is 60 °, the wherein high 0.25mm~0.55mm of major thread tooth, 52 width of tooth top is that 0.1mm~0.4mm is differed, and minor thread tooth is high 0.08mm~0.12mm, addendum width 0.09mm.Since natural transition, tooth top 52 are wide from low to high for the tooth of double thread 16 high 51 Descending natural transition is spent to gradually increase as tooth is high, addendum width is gradually reduced, spiral shell in implant main part lower part Line tooth is relatively deep and sharp, and during screwing in implant to alveolar bone, 12 double thread of implant main part is by the high highest part of tooth Alveolar bone is screwed at first with the least part of addendum width to be cut, and there is certain automatic tapping ability, and in implant Main part top, with the high gradual attenuating of tooth, the gradual increase of addendum width, thread is relatively shallow and blunt, and implant portion 10 is right Alveolar bone gradually carries out rational Bone condensing, make its planting body screw in alveolar bone during, implant double thread 16 from Automatic tapping ability is gradually transitions with automatic Bone condensing ability, since planting body first cuts alveolar bone again gradually Rational Bone condensing is carried out, makes planting body that can reach preferably firm in alveolar bone, not only reduces operation wound, Er Qiegeng Planting body is enhanced in the initial stage stationarity of alveolar bone, ensure that the success of Osseointegrated implants.

As shown in Fig. 2, the length of cone portion 17 is the one third of 10 overall length of implant portion, taper is 4 °~6 °, periphery Double thread parameter it is identical as the lower part of implant main part 12, the high highest of tooth, addendum width is minimum, implant cone portion periphery it is double Screw thread crest top land forms circular conical surface, not only improves navigation function when planting body screws in alveolar bone, is also carried out at first to alveolar bone Cutting.

As shown in Figure 2, Figure 3, Figure 4, have pluggable abutment portion 20 to form the endoporus of interpolation connection in implant portion 10, it is interior Hole is divided into three sections, and epimere is conical Morse's taper face 13, and length 1.5mm~2.5mm, Morse's taper is 3 °~9, and surface uses The processing of ultrasonic surface rolling techniques；Stage casing is long 2.5mm~3.5mm, the implant endoporus cylindrical surface of diameter 2.2mm~2.6mm 5；Hypomere is the implant internal thread 4 that diameter is less than stage casing；In implant portion endoporus stage casing, cylindrical surface 5, which is equipped with, prevents abutment portion from rotating The anti-rotation groove 14 closed with the 30 phase scarf of anti-rotation boss on the cylindrical round platform of abutment portion 20 31, groove number three be it is best, The position of groove is less than implant 1mm~2mm suitable for reading, and implant platform 19 suitable for reading is without gap after ensure that base station connection, tightly continuously Gap.

In the prior art, the outer surface of abutment portion 20 and 10 endoporus cone Morse's taper face 13 of implant portion are in existing skill It is only connected with the state of Morse's taper in art, it is still, this conventional the purpose is to increase the precise match of the two For mechanical manufacturing technology it is difficult to ensure that in the lower roughness value in its metal surface, surface is left in the presence of being much machined Trace, so also being difficult to avoid the problem that Micro blazed-grating.The present invention is on abutment portion surface and implant portion endoporus cone Morse's taper The surface in face is all made of ultrasonic surface rolling techniques and handles its metal surface, can improve the prior art well and easily go out The problem of existing fine motion degree and Micro blazed-grating.Ultrasonic surface rolling techniques are a kind of emerging ultrasonic wave added process for modifying surface, can be promoted Make matallic surface layer crystal grain nanosizing, the surface roughness value of material can be significantly reduced, ultraprecise state is presented, can also improve Surface stress is distributed, and improves case hardness, bearing capacity, wear resistance, corrosion resistance and fatigue resistance.In planting body The position of Morse's taper cooperation most critical, is handled metal surface using this technology between base station, can avoid oozing because micro- Bacterium descending infection caused by leakage reduces the generation of the complication such as the peri-implantitiss at a specified future date of tooth-implanting.

As shown in Figure 2, Figure 3, Figure 4, in the present invention, 20 positive cone round platform 23 of abutment portion and 10 endoporus of implant portion cone The metal surface in Morse's taper face 13 is all made of the processing of ultrasonic surface rolling techniques, promotes matallic surface layer crystal grain nanosizing, can The surface roughness value of material is significantly reduced, ultraprecise state is presented, greatly reinforces accurate connection between the two, utmostly It solves the problems, such as the fine motion degree and Micro blazed-grating that traditional technology easily occurs, can avoid planting tooth complication caused by bacterium infection.

As shown in Fig. 4, Fig. 1, abutment portion 20 is that a periphery is followed successively by back taper round platform 26, groove 28, just from top to bottom Curved shape round platform 24, positive cone round platform 23 and cylindrical rotary body of the round platform 31 with through-hole；Cylindrical round platform 31 is equipped with and plant The anti-rotation boss 30 that the anti-rotation 14 phase scarf of groove in 10 endoporus stage casing of body portion closes；Positive cone round platform 23 and cylindrical round platform 31 and it On anti-rotation boss 30 constitute the base station inserting paragraph 21 for being inserted into implant portion 10, base station inserting paragraph 21 is gone directly 10 endoporus cylinder of implant portion Shape face 5；After implant portion 10 and abutment portion 20 connect, 20 positive curved shape round platform 24 of abutment portion it is lower along interface 22 and implant portion The table top of platform transfer is formed between mouth platform 19；Back taper round platform 26 and groove 28 below collectively constitute base station tooth Hat section 25 is coated by corona, and the bead of corona is made tightly to be bonded along 29 under groove；Base station groove 27 is conducive to direction positioning, protects The accurate in place of corona has been demonstrate,proved, and has prevented rotation, in the present embodiment, anti-rotation boss 30 is improvement tripartite's boss, For form between tripartite and three flowers, the radius of improvement tripartite's boss protrusion part is 0.25mm~0.4mm, the length of 1.5mm~2.5mm, edges and corners chamfering；Anti- rotation groove 14 is matching improvement tripartite's groove, so that base station is being inserted into plantation When body, can rigidly it be accurately positioned and with smooth in place；Boss number three is best, both ensure that sentencing when base station is in place The accuracy in disconnected direction, also avoids the multi-direction uncertainty brought.

23 surface of positive cone round platform is handled using ultrasonic surface rolling techniques, and centralized positioning bolt 34 passes through the base of abutment portion Platform suitable for reading 33 screws in implant portion implant internal thread 4, and implant portion 10 and abutment portion 20 are connected as one, after the two connection, base station The table top of platform transfer is formed between the lower platform 19 suitable for reading along interface 22 and implant portion of 20 positive curved shape round platform 24 of portion, Increase the biological width of bone regeneration around implant；Back taper round platform 26 and groove 28 below collectively constitute base station corona section 25 It is coated by corona, ensure that the bead of corona when corona is repaired tightly is bonded under groove along 29, prevent gap or step, The intrusion for avoiding bacterium makes corona repair more rigorous；Base station groove 27 is conducive to the positioning in direction, ensure that the accurate of corona In place, and rotation is prevented；Positive curved shape round platform 24 can have 1.0mm~4.0mm it is different wear gum height specification, with Adapt to the different thickness of gum.

As shown in fig. 6, anti-rotation boss 30 is improvement tripartite's boss, form is between tripartite and three flowers, i.e., boss is transversal Face is triangle, and carries out rounded corner processing in three vertex of triangle；Certainly, in other embodiments of the invention, Anti- rotation boss 30 or multi-party boss, the matching design of anti-rotation groove.

As shown in figure 5, implant portion 10, which may be designed in, wears gum implant 32, i.e., implant portion and abutment portion are designed to one Body, i.e. one-part form planting body, implant shoulder portion are that a periphery is followed successively by and wears gum implant groove 49, wears gum implant and fall from top to bottom The rotary body of conical round table 50 wears gum implant back taper round platform 50 as gum portion point, wears gum implant groove 49 and wear gum planting body Mating base station coated together by corona, so that the bead of corona is tightly bonded with 49 lower edge of gum implant groove is worn；Wear gum implant 32 Periphery double thread and internal structure and 10 all same of implant portion.The advantages of wearing gum implant is because implant and base station are one , treatment procedure can be reduced, shorten operation number and treatment time, prevented also from fine motion degree caused by being connected due to base station and Micro blazed-grating problem avoids bacterium infection and causes to plant tooth complication.

Claims (10)

1. a kind of dental implant, it is characterised in that：Including the implant portion (10) in implantation alveolar bone, implant portion (10) periphery is from upper Implant shoulder portion (11), implant main part (12) and implant cone portion (17) are followed successively by under, wherein implant main part (12) and Implant cone portion (17) periphery is provided with double thread (16), and implant main part (12) double thread tooth top (52) face forms cylinder Bottom of the tooth (53) face in face, implant main part (12) double thread (16) forms up big and down small taper surface.

2. dental implant according to claim 1, it is characterised in that：Double thread (16) structure include major thread tooth and Minor thread tooth, wherein major thread tooth are angular thread tooth, and minor thread tooth is to be arranged the half of angular thread tooth lower part side root A angular thread tooth, major thread tooth are parallel with the crest top land of minor thread tooth；Double thread (16) screw pitch is 0.7mm~1.2mm, thread form Angle be 60 °, the wherein high 0.25mm~0.55mm of major thread tooth, addendum width 0.1mm~0.4mm, the high 0.08mm of minor thread tooth~ 0.12mm, addendum width 0.09mm.

3. dental implant according to claim 1 or 2, it is characterised in that：Implant main part (12) double thread (16) It is divided into three sections from top to bottom, natural transition, double thread tooth top (52) width are descending certainly from low to high for double thread tooth high (51) Right transition；Wherein, a height of 0.25mm~0.35mm of epimere tooth, addendum width are 0.4mm~0.3mm；The a height of 0.35mm of stage casing tooth ~0.45mm, addendum width are 0.3mm~0.2mm；A height of 0.45mm~the 0.55mm of hypomere tooth, addendum width be 0.2mm~ 0.1mm。

4. dental implant according to claim 1, it is characterised in that：The length of the implant cone portion (17) is implant portion (10) one third of overall length, taper are 4 °~6 °, the hypomere phase of periphery double thread (16) parameter and implant main part (12) Together, the high highest of double thread tooth of whole section of implant cone portion (17), addendum width is minimum, and the double thread crest top land in its periphery is formed Circular conical surface；Implant cone portion (17) periphery has been placed equidistant at least two self tapping slot (18).

5. dental implant according to claim 1, it is characterised in that：Implant shoulder portion (11) is suitable for reading flat to implant portion Platform (19) collapses, and forms back taper frustum cone structure, and taper is 6 °~12 °, and length is 1.2mm~2mm, the thin spiral shell of surface setting Line (15) is round thread, and screw pitch is 0.12mm~0.16mm, the high 0.4mm~0.6mm of tooth.

6. dental implant according to claim 1, it is characterised in that：It further include the base that hypomere is fixed in implant portion (10) Platform portion (20), abutment portion (20) periphery are followed successively by back taper round platform (26), groove (28), positive curved shape round platform from top to bottom (24), positive cone round platform (23) and cylindrical round platform (31), abutment portion (20) are internally provided with through-hole；Positive cone round platform (23), Cylindrical round platform (31) and the anti-rotation boss (30) being arranged on the outside of cylindrical round platform (31) constitute and are inserted into implant portion (10) Base station inserting paragraph (21), base station inserting paragraph (21) are gone directly implant portion endoporus cylindrical surface (5), the lower edge of positive curved shape round platform (24) The table top of platform transfer is formed between interface (22) and implant portion platform suitable for reading (19).

7. dental implant according to claim 6, it is characterised in that：Anti- rotation boss (30) is improvement tripartite's boss, form Between tripartite and three flower between, improvement tripartite's boss protrusion part radius be 0.25mm~0.4mm, height be 1.5mm~ 2.5mm。

8. dental implant according to claim 6, it is characterised in that：Have in the implant portion (10) and can be inserted into abutment portion (20) to form the endoporus of interpolation connection, endoporus is divided into three sections, the plant that epimere is length 1.5mm~2.5mm, taper is 3 °~9 ° Internal hole cone Morse's taper face (13), stage casing are the cylindrical surface of long 2.5mm~3.5mm, diameter 2.2mm~2.6mm (5), hypomere is the implant internal thread (4) that diameter is less than stage casing；It is equipped with and base in implant portion endoporus stage casing cylindrical surface (5) position The anti-rotation groove (14) that anti-rotation boss (30) the phase scarf in platform portion (20) closes, the two form anti-rotation structure, the position of anti-rotation groove (14) It sets low in implant 0.8mm~1.6mm suitable for reading.

9. the dental implant according to claim 6 or 8, it is characterised in that：The positive cone round platform of the abutment portion (20) (23) implant endoporus cone Morse's taper face (13) outer surface of outer surface and implant portion (10) is all made of ultrasonic surface rolling Pressure technology modification.

10. dental implant according to claim 1, it is characterised in that：Implant portion (10) is to wear gum implant (32), implant shoulder Platform portion (11) is that a periphery is followed successively by the rotation worn gum implant groove (49) and wear gum implant back taper round platform (50) from top to bottom Swivel.