Background technology
The implant system that " implant tooth " adopts can be divided into one-part form and multisection type according to type.Wherein multisection type implant system is made up of implantation body, base station and center screw conventionally, implantation body and base station are fixed by center screw, the plantation of this multisection type implantation body needs two operations, and this has not only extended treatment and healing time, has also increased patient's misery.And implant operation can not ensure complete success for the second time, this all causes very large pressure at heart to patient and doctor's.
One-part form plantation physical ability realizes artificial tooth's disposable plantation at present, but is only applicable in Anterior Implant, cannot meet the needs of the single anodontia in large gap and the residue larger position of alveolar bone width (as backteeth district) plantation:
1, at present one-part form implantation body is multiplex in Anterior Implant, and the alveolar bone of labial teeth is narrow, so the size of one-part form implantation body is all smaller, causes the intensity of one-part form implantation body low, self tapping poor-performing.
2, the bone wall of rear dentale is wider, but thickness deficiency in the situation that ensureing implantation body's intensity, adopts multisection type implant system at present.Because implantation body in multisection type implant system separates with base station, plant tooth early stage implantation body and be embedded in bone, be not subject to the impact of extraneous gmatjpdumamics, can be stable and synosteosis.And at present one-part form implantation body is one with base station, plantation afterwards base station can be exposed to bone and be easily subject to the impact of extraneous power outward, is unfavorable for knitting.
To sum up, urgently a kind of can be ensureing in structural strength, the one-part form implanting body of artificial tooth of repairing for edentulous region, large gap that not affected by extraneous power.
Utility model content
The purpose of this utility model is, for the problem of above-mentioned existing one-part form implantation body insufficient strength, self tapping poor performance, a kind of one-part form implanting body of artificial tooth of repairing for edentulous region, large gap is proposed, this one-part form implanting body of artificial tooth that is used for the reparation of edentulous region, large gap is simple in structure, can in ensureing structural strength, increase the self tapping performance of implantation body.
For achieving the above object, the technical solution adopted in the utility model is: a kind of one-part form implanting body of artificial tooth of repairing for edentulous region, large gap, comprise one in turn coaxially connect implantation section, wear gum section and base station, the described section cylinder and the frustum that comprise coaxial connection implanted, described cylinder two ends are respectively with the bigger diameter end of frustum with wear gum section and be connected, described implantation section surface is provided with screw thread, the miner diameter end of described frustum is arc surface, described cylindrical external diameter is 4.5-6mm, described implantation segment length is 4-8mm, is preferably 6mm.
The setting of implanting section frustum approaches profile and the natural root of the tooth of implanting section, and to improve the long-time stability of implantation body, the conical surface of this utility model frustum and the angle of horizontal plane are about 70 °-85 °.The stress that can effectively disperse to implant section that arranges of implanting section arc surface, reduces the damage to spongy bone.
Further, describedly wear the first frustum and the second frustum that gum section comprises coaxial connection, the bigger diameter end of described the first frustum is coaxially connected with the bigger diameter end of the second frustum, described the second frustum and implantation coaxial a connection of section, the height of described the first frustum is 0.3-1.0mm, the height of described the second frustum is 1-4mm, and the bigger diameter end external diameter of described the first frustum and the second frustum is 4-7mm.
Further, the external diameter of wearing the miner diameter end of gum section the first frustum described in is 3-6mm.
Further, described in, wearing gum section the second frustum surface is smooth arc-shaped surface.Smooth arc-shaped surface can effectively be avoided growing of antibacterial, reduces or avoid the generation of bone regeneration around implant inflammation, and shiny surface is set to arc surface, and arc surface can avoid wearing gum section stress concentration, prevents that implantation body from fractureing wearing gum section, and is beneficial to the growth of gingiva cuff.Smoothly in this utility model refer to that surperficial extra coarse degree is between 0.4-0.8.
Further, described base station is polygon prism, and the long-diagonal of described polygon prism cross section equates with the external diameter of described the first frustum miner diameter end.Preferred described base station is eight prisms.
Further, the height of described base station is 2-4mm.Base station height is short as much as possible, makes the impact that is not subject to extraneous gmatjpdumamics of base station.
Further, on described frustum, be provided with self tapping groove.Self tapping groove described in the utility model is the cell body of length direction both ends open.
Further, described self tapping groove is vertical self tapping groove or helical form self tapping groove, and described vertical self tapping groove is made up of an arc surface; The hand of spiral of described helical form self tapping groove is identical with hand of thread spiral, the lead angle of described helical form self tapping groove is different from the lead angle of screw thread, described helical form self tapping groove is made up of two arc surfaces, the binding site of two arc surfaces is tangent connection, and showing as connection does not smoothly have the angle of projection or depression.The lead angle of helical form self tapping groove is different from the lead angle of screw thread, can prevent that bone bits are by outside self tapping groove and screw thread discharge implantation body.This utility model self tapping groove in the shape of a spiral, make implantation body in the process screwing in, self tapping groove anterior angle contacts gradually with osseous tissue, make cutting force and extruding force 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, stability is high.
Further, described self tapping groove number is more than two, and described more than two self tapping groove is distributed on the outer surface of implanting section.The degree of depth of this utility model self tapping groove shoals to the bigger diameter end of implanting section frustum gradually from the miner diameter end of implanting section frustum.In order to realize bone extrusion effect, consistent being advisable of osseous tissue volume of the volume of this utility model self tapping groove and screw chasing.
The one-part form implanting body of artificial tooth that this utility model is repaired for edentulous region, large gap is prepared from by the high metal material of biocompatibility.The preferred titanium that adopts is prepared from,, can there is bone and integrate in the good biocompatibility of pure titanium metal, also have good physical property simultaneously, its intensity and toughness plasticity are better than hydroxyapatite and ceramic analog biological material, can greatly improve the success rate of Dental Implant.
The implantation methods of the one-part form implanting body of artificial tooth that this utility model is repaired for edentulous region, large gap comprises 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 section, and the one-part form implanting body of artificial tooth that then will repair for edentulous region, large gap screws in until implantation section is concordant with bone plane near the one end of wearing gum section.The one-part form implanting body of artificial tooth screw-in process of repairing for edentulous region, large gap is implanted section osseous tissue is around produced to cutting and extruding, suitable extruding can improve the primary stability of the one-part form implanting body of artificial tooth of repairing for edentulous region, large gap, implant surgery has been carried out, can bring occluding relation corona not too closely, prevent the damage of gmatjpdumamics to implantation body, after bone is integrated generation, change the corona of life-time service according to normal occluding relation.
The one-part form implanting body of artificial tooth that this utility model is repaired for edentulous region, large gap is simple in structure, compact, the utlity model has compared with prior art following advantage:
1, this manual tooth planting's body profile is short and thick, is applicable to the reparation of the single anodontia in large gap and the residue larger position of alveolar bone width, can effectively reduce the generation of implantation body's fracture.
2, this implanting body of artificial tooth is integral type implantation body, and its structural strength is high, can effectively reduce the risk that fractures of implantation body; This utility model has been cancelled center screw compared with multisection type implantation body, has avoided coping screw to become flexible and the clinical problem causing that fractures.
3, the implantation section of this implanting body of artificial tooth is provided with self tapping groove, can in ensureing structural strength, increase the self tapping performance of implantation body.
4, by one piece of this utility model implantation body of remote design, can eliminate partial denture free-end.Improve Ken Shi I, II, IV free-end disappearance, use partial denture patient's masticatory function, reduce the infringement of artificial tooth to abutment and remaining alveolar ridge simultaneously; As covering total artificial tooth abutment for total artificial tooth provides maintenance, stable, support, improve masticatory efficiency; Avoid damaging the important dissection knot such as nervus mandibularis pipe of maxillary sinus, tight re-absorbed alveolar ridge of mandible below; Reduce base area, improve patient's comfort level.
5, this manual tooth planting's physical ability as telescope crown fix-activity combine the retainer of reparation; Cemented retention plantation fixed bridge retainer; Can be as plantation leaf-comb, fixed bridge, semi-fixed bridge retainer.
6, base station part polygon prism design, can prevent corona rotation effectively, the stability of packaging corona.
7, this utility model implanting body of artificial tooth implant operation simple, reduce patient suffering, risk is low; Repair clinical delivery simple, do not need complicated operating theater instruments (as shifted base station, substituting body and central bolt); Wear tooth simple, do not need to dismantle cover screw fixture cover, the steps such as base station are installed; And operation wound is little.
Detailed description of the invention
Embodiment 1
The present embodiment discloses a kind of one-part form implanting body of artificial tooth of repairing for edentulous region, large gap of the reparation in large gap list anodontia and the residue larger position of alveolar bone width, as Figure 1-3, this one-part form implanting body of artificial tooth that is used for repairing edentulous region, large gap comprise that one coaxially connects in turn in implantable bone, shaggy section 1, ganoid gum section 2 and the base station 3 for being connected with corona worn implanted, it is one-body molded that this is used for one-part form implanting body of artificial tooth employing pure titanium metal of repairing edentulous region, large gap.
Implant section 1 surface and be provided with screw thread, implanting section 1 is made up of the cylinder 5 coaxially connecting and frustum 4, cylinder 5 one end are connected with the bigger diameter end of frustum 4, the other end with wear gum section 2 and be connected, this implantation section 1 makes implantation body's entirety present bionical taper, approach with natural root of the tooth profile, can effectively disperse bite stress, improve long-time stability.Cylindrical external diameter is 5.0mm, and implantation segment length is 6mm.The miner diameter end of frustum 4 is arc surface, and arc surface is dispersive stress effectively, avoids the damage to spongy bone of stress concentration and root.On frustum 4, be provided with helical form self tapping groove 11, the hand of spiral of helical form self tapping groove 11 is identical with hand of thread spiral, the lead angle of helical form self tapping groove 11 is different from the lead angle of screw thread, helical form self tapping groove 11 can be realized the self tapping performance of implanting section 1, reduce operating procedure, and can hold the bone bits that squeeze out in self tapping process, increase primary stability, accelerated bone is integrated, and improves the success rate of implantation body.Helical form self tapping groove 11 is made up of two arc surfaces, and the binding site of two arc surfaces is tangent connection.In the present embodiment, helical form self tapping groove 11 numbers are two, and two vertical self tapping grooves 11 are distributed on the outer surface of implanting section 1.
Wear the first frustum 7 and the second frustum 6 that gum section 2 comprises coaxial connection, the bigger diameter end of the first frustum 7 is coaxially connected with the bigger diameter end of the second frustum 6, the second frustum 6 is coaxially connected with implantation section 1, the height of the first frustum 7 is 0.5mm, the height of the second frustum 6 is 3mm, and the external diameter of the first frustum 7 bigger diameter ends and the second frustum 6 bigger diameter ends is 5.4mm.The external diameter of the miner diameter end of the first frustum 7 is 4.4mm.Wear gum section 2 for smooth arc-shaped surface, smooth surface can effectively be avoided growing of antibacterial, reduces or avoid the generation of bone regeneration around implant inflammation, and smooth arc-shaped surface can also avoid wearing gum section 2 stress concentration, prevent that implantation body from fractureing wearing gum section 2 places, and be beneficial to the growth of gingiva cuff.
Base station 3 is eight prisms, and the long-diagonal of eight prism cross sections equates to be all 4.4mm with the external diameter of described the first frustum 7 miner diameter ends, and the height of base station 3 is 3mm.
The implantation methods of the one-part form implanting body of artificial tooth that the present embodiment is repaired for edentulous region, large gap is as shown in Figure 4: first carry out reaming at the alveolar bone 8 of needs of patients implant site, the diameter in hole will be slightly less than implants section 1 external diameter; Then the one-part form implanting body of artificial tooth that will repair for edentulous region, large gap screws in until implant section 1 near wearing one end of gum section 2 and the bone plane of alveolar bone 8 is concordant, make the second frustum 6 of wearing gum section 2 be arranged in gingiva 9, the first frustum 7 higher than gingiva 9, implant surgery has been carried out, can bring occluding relation corona 10 not too closely, prevent the damage of gmatjpdumamics to implantation body, after bone is integrated generation, change the corona of life-time service according to normal occluding relation.
Embodiment 2
The present embodiment discloses a kind of substantially the same manner as Example 1 for the one-part form implanting body of artificial tooth that repair edentulous region, gap greatly, and different is that described cylindrical external diameter is 6mm, and described implantation segment length is 8mm.The height of the first frustum is 0.5mm, and the height of the second frustum is 2mm, and the bigger diameter end external diameter of the bigger diameter end of the first frustum and the second frustum is 6.4mm, and the external diameter of the miner diameter end of the first frustum is 5.4mm.The height of base station is 4mm.
This utility model is not limited to the one-part form implanting body of artificial tooth of repairing for edentulous region, large gap that above-described embodiment is recorded, and implants section change, self tapping groove kind, quantity and the change of size of screw thread kind and the change of base station shape all within protection domain of the present utility model.
Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although this utility model 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 amendments or replacement do not make the essence of appropriate technical solution depart from the scope of the each embodiment technical scheme of this utility model.