Summary of the invention
The object of the invention is to, for above-mentioned existing implant tooth, cannot reach problem attractive in appearance and effect that repair, a kind of artificial tooth's base station (abbreviation base station) is proposed, this artificial tooth's base station can be applicable to various tooth-planting conditions and angle, and implant tooth adopts that this base station energy acquisition and surrounding tissue and remaining denture are coordinated, repairing effect attractive in appearance.
For achieving the above object, the technical solution used in the present invention is: a kind of artificial tooth's base station, and described artificial tooth's base station two ends are respectively corona linkage section and plant body linkage section, and described corona linkage section axis is 10 °-30 ° with the angle of planting body linkage section axis.
Further, described corona linkage section is frustum, and the tapering of described frustum is 2 °-10 °.
Further, the described body linkage section of planting is for coaxial the first frustum, anti-rotation post and the second frustum connecting, described corona linkage section is connected with the bigger diameter end of the first frustum, the miner diameter end of described the first frustum is connected with one end of anti-rotation post, the other end of described anti-rotation post is connected with the bigger diameter end of the second frustum, described the first frustum is the frustum that meets Morse's taper, described in meet Morse's taper frustum bus and the angle between axis be 10 °-15 °; Described anti-rotation hole is quincunx post or polygon post, and described quincunx post is that cross section is quincuncial cylinder, and described polygon post is quadrangular, six prisms or eight prisms;
Another object of the present invention also provides a kind of artificial tooth's multi-piece type implant system, this artificial tooth's multi-piece type implant system can overcome the uncertainty that existing multi-piece type implant Ya Yiyin medical treatment operates clinically, causes and is combined difficulty with coronal or causes bacteria breed; Screw thread closing component structure easy fracture, cannot reach problem attractive in appearance and effect that repair, this artificial tooth's multi-piece type implant system has realized stability and intensity is high, can be applicable to various tooth-planting conditions and angle, effectively reduce local stress, shorten healing time, reduce patient's wound, be conducive to the non-heeling-in of gingival forming with the implant system of Angled abutment.
For achieving the above object, the technical solution used in the present invention is: a kind of artificial tooth's multi-piece type implant system, comprise implantation body, artificial tooth's base station and central bolt, described implantation body is provided with artificial tooth's base station plants the connecting hole that body linkage section matches, described artificial tooth's base station inside is provided with the shoulder hole matching with central bolt, in described implantation body connecting hole, is also provided with the female thread matching with central bolt external screw thread.The screw rod of described central bolt, through the threaded engagement of shoulder hole and implantation body, can be realized the fixing of implantation body, artificial tooth's base station and central bolt.
Further, described implantation body two ends are respectively cervical region and head, described cervical region is smooth arc-shaped surface, described head outer surface is provided with screw thread, the outer surface of described head is also provided with helical form self tapping groove, the hand of spiral of described helical form self tapping groove is identical with hand of thread spiral, and the lead angle of described helical form self tapping groove is different from the lead angle of screw thread.
Further, described self tapping groove is comprised of two arc surfaces, and the binding site of two arc surfaces is tangent connection.
Further, described self tapping groove number is more than two, and described two above self tapping grooves are distributed on the outer surface of head.
Further, described head is frustum, and the bigger diameter end of described head frustum is near cervical region, and described head is arc surface away from one end of cervical region.Described head outer surface thread is asymmetric double thread, and the angle of asymmetric double thread lower limb and horizontal plane is 15 °-20 °, is preferably 15 °; The angle of top edge and horizontal plane is 30 °-40 °, is preferably 35 °.
Another object of the present invention also provides a kind of implantation methods of artificial tooth's multi-piece type implant system, comprise the following steps: first on the alveolar bone of needs of patients implant site, hole, the diameter in hole will be slightly less than the external diameter of implantation body, then implantation body is screwed in until implant neck is concordant with gingiva near one end of head, again artificial tooth's base station is arranged in implantation body, finally puts corona part and use the fastening implantation body of central bolt and artificial tooth's base station.
The artificial tooth base station of the present invention and artificial tooth's multi-piece type implant system are rational in infrastructure, compact.The implantation methods of this artificial tooth's multi-piece type implant system is simple, science.The present invention compared with prior art has the following advantages:
1, the corona linkage section axis of the artificial tooth base station of the present invention is 10 °-30 ° with the angle of planting body linkage section axis, doctor can select according to the actual dental bed situation of patient artificial tooth's base station of differing tilt angles, copy the direction of growth of nature tooth, and then the coordination of acquisition and surrounding tissue and remaining denture, repairing effect attractive in appearance;
Artificial tooth's base station and implantation body adopt cone match to make conical surface mutually press close to form cold welding effect, effectively prevent the generation of micro-leakage, eliminate the fine motion between base station and implantation body, and gmatjpdumamics is separated into axially and both direction radially, prevents that stress concentrations and central bolt from fractureing.
2, the artificial odontodes part of the present invention formula implant system is the implantation body of the combination of multi-piece type and non-heeling-in technology, can effectively avoid between bone integration period, single-piece implantation body is because Occlusal interference during dental implant surgical person chewing on things, the undercapacity that causes bone to integrate, the steadiness after tooth is planted in impact, cause bone atrophy, make to plant the problem of tooth failure.Stability and the intensity of the artificial odontodes part of the present invention formula implant system are high, can be applicable to various tooth-planting conditions and angle, effectively reduce local stress, shorten healing time, reduce patient's wound.
3, the implantation methods of the artificial odontodes part of the present invention formula implant system can disposablely complete implant tooth, thereby has avoided secondary operation to reduce operation number of times, and has reduced the risk of the peri-implant osseous tissue absorption that may cause due to plantation secondary operation.
The specific embodiment
The invention discloses a kind of artificial tooth's base station that is applicable to various tooth-planting conditions and angle, particularly, artificial tooth's base station two ends are respectively corona linkage section and plant body linkage section, and described corona linkage section axis is 10 °-30 ° with the angle of planting body linkage section axis, is preferably 15 °-25 °.In the middle of described corona linkage section and planting can also be provided with between body linkage section as required, wear gum section, described centre wears gum section and to plant body linkage section coaxial.Corona linkage section is frustum, and the tapering of frustum is 2 °-10 °, preferably 3 °.
Plant body linkage section for coaxial the first frustum, anti-rotation post and the second frustum connecting, described corona linkage section is connected with the bigger diameter end of the first frustum, the miner diameter end of described the first frustum is connected with one end of anti-rotation post, and the other end of described anti-rotation post is connected with the bigger diameter end of the second frustum.Described the first frustum is the frustum that meets Morse's taper, and the frustum bus and the angle between axis that meet Morse's taper are 10 °-15 °.Described anti-rotation post is quincunx post or polygon post, and wherein polygon post is quadrangular, six prisms or eight prisms; Quincunx post is that cross section is quincuncial cylinder, and petal quantity is not limit, and is preferably six lobes quincunx.
Corona linkage section is provided with cutting groove vertically, and this cutting groove not only can be located corona, and plays anti-turning effort.
The present invention also provides a kind of non-artificial tooth's of burying multi-piece type implant system, comprises implantation body, artificial tooth's base station and central bolt, and implantation body and artificial tooth's base station are fixed by central bolt.Particularly, implantation body is provided with artificial tooth's base station plants the connecting hole that body linkage section matches, and artificial tooth's base station inside is provided with the shoulder hole matching with central bolt, is also provided with the female thread matching with central bolt external screw thread in implantation body's connecting hole.The screw rod of central bolt, through the threaded engagement of shoulder hole and implantation body, can be realized the fixing of implantation body, artificial tooth's base station and central bolt.Described implantation body two ends are respectively cervical region and head, and described cervical region is provided with chamfering round platform away from one end of head.
Implant neck is smooth arc-shaped surface, and smooth arc-shaped surface is conducive to the growth of gingiva cuff.Head outer surface is provided with screw thread, and the outer surface of head is also provided with helical form self tapping groove, and the hand of spiral of helical form self tapping groove is identical with hand of thread spiral, and, when hand of thread spiral is while being left-handed, the hand of spiral of helical form self tapping groove is also left-handed; When hand of thread spiral is dextrorotation, the hand of spiral of helical form self tapping groove is also dextrorotation.The lead angle of described helical form self tapping groove is different from the lead angle of screw thread, and to prevent that bone bits are by outside self tapping groove and screw thread discharge implantation body, the lead angle of helical form self tapping groove is greater than the lead angle of screw thread conventionally.The cell body that self tapping groove of the present invention is both ends open, this cell body is comprised of two arc surfaces, the binding site of two arc surfaces is tangent connection, shows as the angle that connection does not smoothly have projection or depression, in self tapping Cao implantation body installation process, can realize self tapping function.Self tapping groove number is more than two, and two above self tapping grooves are distributed on the outer surface of head, and adjacent self tapping separation is identical, and the preferred number of self tapping groove is three.,Shi implantation body is in the process screwing in the shape of a spiral for self tapping groove of the present invention, and self tapping groove anterior angle contacts gradually with osseous tissue, and cutting force and extruding force are more reasonable, avoid bone injury.Simultaneously helical form fluting is than the easier hold bone bits of general fluting, reduces or avoids the resistance of implantation body in screw-in process gradually, can effectively anti-rotation after self tapping groove hold bone bits, and stability is high.
Implantation body of the present invention head is frustum, approaches, to improve the long-time stability of implantation body with structure and the natural root of the tooth of head.The angle of the head frustum conical surface of the present invention and horizontal plane is about 70 °-85 °, and the bigger diameter end of head frustum is near cervical region, and head is arc surface away from one end of cervical region, arc surface the stress that can effectively disperse head is set, reduce the damage to spongy bone.
From the miner diameter end of head frustum, the bigger diameter end to head frustum shoals the degree of depth of self tapping groove gradually, and in order to realize bone extrusion effect, the volume of self tapping groove of the present invention is advisable with osseous tissue volume is consistent with after screw thread extruding.
Implantation body of the present invention head outer surface thread is asymmetric double thread, asymmetricly refers to that the cross section of screw thread is not axisymmetric shape, and the angle of asymmetric double thread lower limb and horizontal plane is 15 °-20 °, is preferably 15 °; The angle of top edge and horizontal plane is 30 °-40 °, is preferably 35 °.
Setting implant diameter is L, and according to Asian oral environment and operation technique requirement, L is long is 4mm-18mm; The radius of described head arc surface is R, and L ︰ R is 2-3.5; Described self tapping slot length is 1/5L-7/10L.Described cervical region height is 1/4R-3/4R, is preferably 1/2R; Cervical region cambered surface diameter is 2R-4R, is preferably 3R.Planting body linkage section length is 1.5R-3R, 2R preferably, and efficiency prevents that insertion depth is inadequate, causes the fine motion of implantation body and base station seam, central attachment screw stress concentration fractures.The pitch of described asymmetric double thread is 1/10L-1/5L, is preferably 1/10L; The depth of thread is 1/30L-1/10L, is preferably 1/20L.The frustum that meets Morse's taper is high for 1/4R-3/4R, is preferably 1/2R.
Implantation body is provided with connecting hole, and this connecting hole is coaxial with implantation body.When described while planting body linkage section for coaxial the first frustum connecting, polygon post and the second frustum, connecting hole comprises coaxial the first conical bore, polygonal holes, the second conical bore and the tapped blind hole connecting in turn, described the first conical bore is near connecting hole opening, and described the first conical bore is the conical bore that meets Morse's taper.Artificial tooth's base station is connected and is prevented rotation by polygon post with implantation body.Be appreciated that described polygonal holes is four jiaos of holes, hexagon ring or anistree hole, the polygonal holes degree of depth is R, and described tapped blind hole length is 1R-3/2R.When planting body linkage section for coaxial the first frustum connecting, quincunx post and the second frustum, connecting hole comprises coaxial the first conical bore, quincunx hole, the second conical bore and the tapped blind hole connecting in turn, the first conical bore is near connecting hole opening, described quincunx hole is that cross-section center is quincuncial through hole, its petal number is not limit, be preferably hexagonal Flos Mume, quincunx hole depth is R, and described tapped blind hole length is 1R-3/2R.The cone match that artificial tooth's base station and implantation body adopt makes conical surface mutually press close to form cold welding effect, effectively prevent the generation of micro-leakage, eliminate the fine motion between base station and implantation body, and gmatjpdumamics is separated into axially and both direction radially, prevents that stress concentrations and central bolt from fractureing.
On central bolt screw rod, near one end of bolt head, being provided with axis angle is the taper seat of 30 °, taper seat coordinates with corresponding taper seat in base station inner step hole, can avoid this cooperation place to form right angle corner, reduce the stress concentration of corner, increase and be fastenedly connected stability.In central bolt head, be provided with hexagonal wrench hole, be convenient to slewing maneuver central bolt.
The artificial tooth base station of the present invention, artificial tooth's multi-piece type implant system are prepared from by titanium or the high metal material of the other biological compatibility.
The artificial tooth base station of the present invention, artificial tooth's multi-piece type implant system stability and intensity are high, can effectively solve the undercapacity that the Occlusal interference while adopting operator initial stage of existing implantation body operation to chew causes bone to integrate, and need to carry out the risk that bone regeneration around implant osseous tissue that second operation may cause absorbs, particularly can solve existing base station profile and be mostly straight base station, but not natural tooth and root of the tooth are the problem of the irregular form of angle.
The present invention also provides a kind of implantation methods of artificial tooth's multi-piece type implant system, comprise the following steps: on the position alveolar bone of first implanting at needs of patients, hole, the diameter in hole will be slightly less than the external diameter of implantation body, then implantation body is screwed in to alveolar bone until implant neck is concordant with gingiva near one end of head, be that implantation body only has chamfering round platform to be exposed to gingiva outside, again base station is arranged in implantation body, finally put corona part and with the fastening implantation body of central bolt and base station, completed artificial tooth's plantation.
Below in conjunction with embodiment, the present invention is further described:
Embodiment 1
Fig. 1 is the front view of the artificial tooth base station of the present invention.
The invention discloses a kind of artificial tooth's base station that adopts pure titanium to make, as shown in Figure 1, the two ends of this artificial tooth's base station are respectively corona linkage section 26 and plant body linkage section, and corona linkage section 26 axis are 20 ° with the angle of planting body linkage section axis.The tapering of corona linkage section 26 frustums is 3 °, can effectively increase the adaptation of base station and corona, prevents that corona is loosening.
Plant body linkage section for coaxial the first frustum 25, polygon post 24 and the second frustum 22 connecting, corona linkage section is connected with the bigger diameter end of the first frustum 25, the miner diameter end of the first frustum 25 is connected with one end of polygon post 24, the other end of polygon post 24 is connected with the bigger diameter end of the second frustum 22, the first frustum 25 is for meeting the frustum of Morse's taper, angle between this frustum bus and axis is 10 °, and wherein polygon post 24 is eight prisms.The second frustum 22 is provided with fillet 21 away from the edge of one end of polygon post 24, and fillet 21 can make assembling more smooth and easy.Between described the second frustum 22 and polygon post 24, be also provided with the second chamfering 23.
Corona linkage section 26 is provided with cutting groove 27 vertically, and this cutting groove 27 not only can be located corona, and plays anti-turning effort.
This base station inside is provided with shoulder hole, is provided with the taper seat 20 coordinating with central bolt on described shoulder hole.
The present embodiment artificial tooth base station is copied the incline direction of nature tooth, and then the coordination of acquisition and surrounding tissue and remaining denture, repairing effect attractive in appearance.The cone match that this artificial tooth's base station and implantation body adopt makes conical surface mutually press close to the fine motion that can eliminate between base station and implantation body, and gmatjpdumamics is separated into axially and both direction radially, prevents that stress concentrations and central bolt from fractureing.
Embodiment 2
Fig. 2 is the three-dimensional exploded view of the artificial odontodes part of the present invention formula implant system; The front view of Tu3Wei implantation body; The cutaway view of Tu4Wei implantation body; The upward view of Tu5Wei implantation body; The top view of Tu6Wei implantation body; Fig. 7 is the structural representation of central bolt; Fig. 8 is that the artificial odontodes part of the present invention formula implant system is planted in the structural representation in oral cavity; Fig. 9 is that the AA of Fig. 8 is to cutaway view.
The present embodiment discloses a kind of artificial tooth's multi-piece type implant system, as shown in Figure 2, this artificial tooth's multi-piece type implant system comprises implantation body 1, the disclosed artificial tooth's base station 2 of embodiment 1 and central bolt 3, implantation body 1 is provided with artificial tooth's base station 2 plants the connecting hole that body linkage section matches, artificial tooth's base station 2 inside are provided with the shoulder hole matching with central bolt 3, are also provided with the female thread matching with central bolt 3 external screw threads in implantation body's 1 connecting hole.The screw rod of central bolt 3, through shoulder hole and implantation body's 1 threaded engagement, can be realized the fixing of implantation body 1, artificial tooth's base station 2 and central bolt 3.
As shown in Fig. 3-6, implantation body two ends are respectively cervical region 13 and head, described cervical region 13 is smooth arc-shaped surface, cervical region 13 is provided with chamfering round platform 14 away from one end of head, head outer surface is provided with screw thread 12, the outer surface of head is also provided with helical form self tapping groove 11, and the hand of spiral of helical form self tapping groove 11 and screw thread 12 hands of spiral are dextrorotation, and the lead angle of helical form self tapping groove 11 is greater than the lead angle of screw thread 12.Self tapping groove 11 is comprised of two arc surfaces, and the binding site of two arc surfaces is tangent connection.Self tapping groove 11 numbers are three, and three self tapping grooves are distributed on the outer surface of head.In the present embodiment, head is frustum, and the bigger diameter end of head frustum is near cervical region, and head is arc surface 10 away from one end of cervical region.From the miner diameter end of head frustum, the bigger diameter end to head frustum shoals the degree of depth of self tapping groove 11 gradually.
Implantation body's 1 length is L, and L is long is 10mm; The radius of head arc surface 10 is R; L ︰ R is 3; Self tapping groove 11 length are 7/10L; Cervical region 13 height are 1/2R, and cervical region 13 cambered surface diameters are 3R.Planting body linkage section length is 2R.
Head outer surface thread 12 is asymmetric double thread, and the angle of asymmetric double thread lower limb and horizontal plane is 15 °, and the angle of top edge and horizontal plane is 35 °.The pitch of described asymmetric double thread is 1/10L, and the depth of thread is 1/20L, and helical pitch is twice pitch.
Implantation body 1 is provided with connecting hole, connecting hole is coaxial with implantation body 1, connecting hole comprises coaxial the first conical bore 16, polygonal holes 15, the second conical bore 18 and the tapped blind hole 19 connecting in turn, the first conical bore 16 is near connecting hole opening, the first conical bore 16 is for meeting the conical bore of Morse's taper, wherein polygonal holes 15 is anistree hole, and polygonal holes 15 degree of depth are R, and tapped blind hole 19 degree of depth are 1R-3/2R.Described connecting hole is provided with the conical surface 17 coordinating with the second chamfering 23.Artificial tooth's base station 2 is inserted into can be realized taper seat after the inner chamber of implantation body 1 and be sealed and matched, and the anti-spin orientation of anistree cylinder coordinates and the cooperation of taper seat guiding.
As shown in Figure 7, on central bolt 3 screw rods 32, near one end of bolt head 34, being provided with axis angle is the taper seat 33 of 30 °, taper seat 33 coordinates with corresponding taper seat 20 in base station 2 inner step holes, can avoid this cooperation place to form right angle corner, reduce the stress concentration of corner, increase and be fastenedly connected stability.In 34, central bolt head, be provided with hexagonal wrench hole 35, be convenient to slewing maneuver central bolt 3.
The implantation methods of artificial tooth's multi-piece type implant system described in the present embodiment, as shown in FIG. 8 and 9, comprise the following steps: boring on the position alveolar bone 41 of first implanting at needs of patients, the diameter in hole will be slightly less than the external diameter of implantation body 1, then implantation body 1 is screwed in to alveolar bone 41 cervical regions 13 concordant with gingiva 42 near one end of head, again base station 2 is arranged in implantation body 1, finally put corona 40 parts and with the fastening implantation body 1 of central bolt 3 and base station 2, completed the plantation of artificial tooth's multi-piece type implant system.
Embodiment 3
Artificial tooth's multi-piece type implant system disclosed in this invention is substantially the same manner as Example 2, different is to plant body linkage section for coaxial the first frustum, quincunx post and the second frustum connecting, wherein quincunx post is six lobe Flos Mumes, has 6 chimbs and 6 concave edges.Corresponding implantation body's connecting hole comprises coaxial the first conical bore, quincunx hole, the second conical bore and the tapped blind hole connecting in turn, artificial tooth's base station adopts the anti-rotation in quincunx hole to coordinate with implantation body, increased contact area, improved base station and be connected fastening stability with implantation body, even if can not destroy its inner geometry under higher stress.
In addition, the incline direction of the corona linkage section of artificial tooth's base station has two kinds, and a kind of is that angle of inclination is to quincuncial concave edge; A kind of is that angle of inclination is to quincuncial chimb.In clinical practice, just there are like this 12 kinds of angles to select for doctor, reach best repairing effect.
The present invention is not limited to the disclosed work tooth of above-described embodiment base station, artificial tooth's multi-piece type implant system and implantation methods, corona linkage section axis with plant the change of the angle number of degrees of body linkage section axis, the change of corona linkage section shape, plant the change of body linkage section shape and the change of implantation body's structure all within protection scope of the present invention.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.