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CN208710123U - A kind of mouth cavity planting body and mouth cavity planting body component - Google Patents

A kind of mouth cavity planting body and mouth cavity planting body component Download PDF

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Publication number
CN208710123U
CN208710123U CN201820425977.1U CN201820425977U CN208710123U CN 208710123 U CN208710123 U CN 208710123U CN 201820425977 U CN201820425977 U CN 201820425977U CN 208710123 U CN208710123 U CN 208710123U
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China
Prior art keywords
planting body
mouth cavity
screw thread
cavity planting
bizet
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CN201820425977.1U
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Inventor
徐凯
吴海源
宋洪广
董骧
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Beijing Naton Medical Science And Technology Research Institute Co Ltd
BEIJING LAIDUN BIOMATERIAL Co Ltd
Original Assignee
Beijing Naton Medical Science And Technology Research Institute Co Ltd
BEIJING LAIDUN BIOMATERIAL Co Ltd
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Application filed by Beijing Naton Medical Science And Technology Research Institute Co Ltd, BEIJING LAIDUN BIOMATERIAL Co Ltd filed Critical Beijing Naton Medical Science And Technology Research Institute Co Ltd
Priority to CN201820425977.1U priority Critical patent/CN208710123U/en
Priority to PCT/CN2018/123246 priority patent/WO2019184474A1/en
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Abstract

A kind of mouth cavity planting body and mouth cavity planting body component, mouth cavity planting body component includes mouth cavity planting body, base station and the fastening bolt for connecting mouth cavity planting body and base station, mouth cavity planting body includes integrally formed bizet, middle section and root, middle part is connected between bizet and root, wherein, bizet is back taper, and the outer diameter of the upper end of bizet is less than the outer diameter of the lower end of bizet, and bizet has the first external screw thread;The outer diameter in middle section is less than the outer diameter of bizet, and middle section has the second external screw thread;The outer diameter of root is less than the outer diameter in middle section, and root has third external screw thread, and the first externally threaded screw pitch is less than the second external screw thread and the externally threaded screw pitch of third.

Description

A kind of mouth cavity planting body and mouth cavity planting body component
Technical field
The dental implant that the utility model relates to apply in dental operation.
Background technique
Mouth cavity planting body component is also known as dental implant component, is that human body agomphosis is implanted by way of surgical operation In the upper mandibular at position, after the healing of its wound, the device of artificial tooth is repaired in installation at an upper portion thereof.
Clinically planting body is required main are as follows: primary stability is higher after implantation, not damaged to surrounding tissue, bizet tooth Slot bone calcination is smaller, and long-term planting body can be tightly combined with bone tissue.Planting body implantation process can facilitate, and allow certain Operating error.
Existing mouth cavity planting body component mainly includes mouth cavity planting body, base station and fastening bolt connecting the two.Oral cavity In planting body implanting tissue, base station is connect with artificial corona.
The bizet of existing planting body is generally pylindrical, and after cortex bone is for hole, planting body is inserted into dental cavity, and bizet is circle Rebound and bone contact stress of the cylindrical planting body due to cortex bone are larger, biggish compressing are caused to cortex bone, so that alveolus Bone generates calcination.In addition to this, when planting body is when bearing oblique bite force, the bizet of planting body and the contact stress of cortex bone Larger, these factors can all lead to absorption of alveolar bone.
In addition, existing planting body, under identical pitch and tooth form, smaller with surrounding bone contact area, this leads to contact pressure It is larger;Although positive self tapping slot can enhance planting body self tapping, part primary stability is also lost simultaneously, is furthermore existed During actual operation, when needing to adjust implantation direction, without corrective action, this can make troubles positive self tapping slot to doctor.
Therefore, it is necessary to improve to existing mouth cavity planting body component, to avoid absorption of alveolar bone as far as possible, implantation is improved Stability.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of mouth cavity planting body and mouth cavity planting body component, with to the greatest extent Amount avoids absorption of alveolar bone, improves implantation stability.
To achieve the goals above, the technical solution adopted in the utility model is as follows:
The utility model provides a kind of mouth cavity planting body comprising integrally formed bizet, middle section and root, middle part connection Between bizet and root, wherein bizet is back taper, and the outer diameter of the upper end of bizet is less than the outer diameter of the lower end of bizet, bizet With the first external screw thread;The outer diameter in middle section is less than the outer diameter of bizet, and middle section has the second external screw thread;The outer diameter of root is less than middle section Outer diameter, root have third external screw thread, the first externally threaded screw pitch is less than the second external screw thread and the externally threaded screw pitch of third.
According to an embodiment, for the taper of bizet between 4 ° -8 °, the first external screw thread is micro- screw thread, the first externally threaded spiral shell Away from for 0-0.5mm, the second external screw thread and the externally threaded screw pitch of third are 0.8mm-1.5mm.
According to an embodiment, the first externally threaded tooth height is high less than the second external screw thread and the externally threaded tooth of third.
According to an embodiment, the first external screw thread and the second externally threaded junction are smooth transition.
According to an embodiment, the top in middle section is cylinder, and the middle part and lower part in middle section are taper, and the inner core in middle section is cone Shape.
According to an embodiment, the second externally threaded depth of threat is gradually increased from top to bottom.
According to an embodiment, the shape and inner core of root are taper, and the externally threaded depth of threat of third gradually increases from top to bottom Greatly.
According to an embodiment, the externally threaded depth of threat of third is greater than the second externally threaded depth of threat, externally threaded screw pitch of third etc. In the second externally threaded screw pitch.
According to an embodiment, the top of the second external screw thread and the externally threaded each thread of third is protruded under the thread Portion is formed as step.
According to an embodiment, the first external screw thread, the second external screw thread and third external screw thread are continuous double thread structure.
According to an embodiment, the periphery of middle section and root is additionally provided with reversed self tapping slot, and the depth of reversed self tapping slot is from root It is gradually decreased to middle section.
The utility model also provides a kind of mouth cavity planting body component, including mouth cavity planting body, base station and connection tooth-planting The fastening bolt of body and base station, wherein the mouth cavity planting body is above-mentioned mouth cavity planting body.
The mouth cavity planting body and mouth cavity planting body component of the utility model have the advantage that
1, the bizet of the utility model is designed as back taper, can reduce the contact stress of bizet and cortex bone, to subtract It is few even to avoid generating calcination to cortex bone;Inverted cone-shaped structure makes planting body and jawbone contact stress maximum point under root It moves, the stress effect of reduction is conducive to avoid cortex bone stress is excessive from causing to absorb, and reduces absorption of alveolar bone;
2, the screw pitch of bizet is relatively shorter than the screw pitch of the other parts of mouth cavity planting body, so that the screw thread of bizet is closeer, hat The structure of similar micro- screw thread in portion is capable of increasing and cortex bone contact surface area, the applied stress of reduction and cortex bone;And
3, the monnolithic case of the mouth cavity planting body of the utility model is taper, and implantation torque is made to be converted into planting body and surrounding Bone contact force, to keep primary stability stronger.
Detailed description of the invention
Fig. 1 is the schematic diagram according to the mouth cavity planting body of an embodiment of the present invention.
Fig. 2 is the partial enlarged view of part A in Fig. 1.
Fig. 3 is another angle schematic diagram according to the mouth cavity planting body of an embodiment of the present invention.
Fig. 4 is the another angle schematic diagram according to the mouth cavity planting body of an embodiment of the present invention.
Fig. 5 is the cross-sectional view according to the mouth cavity planting body of an embodiment of the present invention.
Fig. 6 is the bottom view according to the mouth cavity planting body of an embodiment of the present invention.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes Formula is implemented, and is not understood as limited to embodiment set forth herein;On the contrary, thesing embodiments are provided so that this is practical new The design of example embodiment more comprehensively and completely, and is comprehensively communicated to those skilled in the art by type.In the figure in order to Clearly, it may be exaggerated the thickness of region and layer.Identical appended drawing reference indicates same or similar structure in figure, thus will Omit their detailed description.
In addition, described feature, structure or characteristic can be incorporated in one or more implementations in any suitable manner In example.In the following description, many details are provided to provide and fully understand to the embodiments of the present invention.So And it will be appreciated by persons skilled in the art that the technical solution of the utility model can be practiced without in the specific detail It is one or more, or can be using other methods, constituent element, material etc..In other cases, it is not shown in detail or describes public affairs Know structure, material or operation to avoid the major technique intention of fuzzy the utility model.
The utility model provides a kind of mouth cavity planting body component comprising mouth cavity planting body, base station (not shown) and connection The fastening bolt (not shown) of mouth cavity planting body and base station, as shown in Figures 1 to 4, mouth cavity planting body include integrally formed hat Portion 10, middle section 20 and root 30, middle section 20 are connected between bizet 10 and root 30, wherein bizet 10 is back taper, bizet 10 Upper end outer diameter be less than bizet 10 lower end outer diameter, bizet 10 have the first external screw thread 11;The outer diameter in middle section 20 is less than hat The outer diameter in portion 10, middle section 20 have the second external screw thread 21;The outer diameter of root 30 is less than the outer diameter in middle section 20, and root 30 has third External screw thread 31, the screw pitch of the screw pitch of the first external screw thread 11 less than the second external screw thread 21 and third external screw thread 31.
In planting process, mouth cavity planting body is screwed in bone, compared to existing cylindrical bizet 10, the hat of the utility model Portion 10 is designed as back taper, can reduce the contact stress of bizet 10 Yu cortex bone, even avoids producing cortex bone to reduce Raw calcination;Inverted cone-shaped structure moves down planting body to root 30 with jawbone contact stress maximum point, and the stress effect of reduction has Cortex bone stress is excessive to be caused to absorb conducive to avoiding, and reduces absorption of alveolar bone.
In addition, the screw pitch of bizet 10 is relatively shorter than the screw pitch of the other parts of mouth cavity planting body, so that the screw thread of bizet 10 Closeer, the structure of similar micro- screw thread of bizet 10 is capable of increasing answers with cortex bone contact surface area, reduction and the effect of cortex bone Power.
In addition, the monnolithic case of the mouth cavity planting body of the utility model be taper, make be implanted into torque be converted into planting body with Surrounding bone contact force, to keep primary stability stronger.
In the present embodiment, bizet 10 is the inverted conical shape of micro taper, and taper is between 4 ° -8 °, such as 6 ° or so.First External screw thread 11 is micro- screw thread, and the screw pitch of the first external screw thread 11 is 0-0.5mm, the screw pitch of the second external screw thread 21 and third external screw thread 31 For 0.8mm-1.5mm, for example, 1mm.Micro- screw thread of bizet 10 is capable of increasing the contact area with bone, stablizes to increase initial stage Property, so that long-term synosteosis is more stable.
It should be appreciated that above-mentioned numerical value is merely illustrative, the shape of mouth cavity planting body can be designed as needed, for example, Second external screw thread 21 is equal with the screw pitch of third external screw thread 31.Any mouth cavity planting body with inverted conical shape bizet 10 all should It is covered by the protection scope of the application.
In the present embodiment, as shown in Fig. 1,3,4, the tooth height of the first external screw thread 11 is less than spiral shell outside the second external screw thread 21 and third The tooth of line 31 is high, and the tooth height of the first external screw thread 11 can be within the scope of 0.08-0.2mm, for example, 0.1mm.Since cortex bone can be held By larger holding power, required lateral pressurization is smaller, and the present embodiment is smaller by the Design of Screw Thread of bizet 10, thus will not be excessive Go deep into cortex bone, so as to reduce the applied stress with cortex bone, and will not influence the stability of implantation.
In the present embodiment, the first external screw thread 11, the second external screw thread 21 and third external screw thread 31 are multiple thread, that is, a plurality of Screw thread is spaced apart according to certain rules.In the present embodiment, the first external screw thread 11, the second external screw thread 21 and third external screw thread 31 are double Helicitic texture.The junction of first external screw thread 11 and the second external screw thread 21 is smooth transition.Specifically may be used are as follows: when processing, from hat Portion 10 to middle section 20, bizet 10 and the screw pitch of the transition portion in middle section 20 become larger, to form continuous smooth transition surface.
In the present embodiment, as shown in Figure 1, the upper surface 12 of bizet 10 is the interfacial plane of bizet 10 and base station, upper surface 12 may be designed as with chamfering, such as 45 ° of chamferings, so that upper surface is the surface that from-inner-to-outer tilts down, after implantation, Transfer platform can be climbed up and be full of to gum from this inclined interfacial plane, avoid bacterium from entering inside planting body, cause oral cavity Disease.
In the present embodiment, as shown in Fig. 1,3,4, the top in middle section 20 is cylinder, and the other parts in middle section 20 are taper. Wherein, cylindrical and conical section proportion substantially 1:2.It should be appreciated that the shape in middle section 20 is without being limited thereto, it is cylindrical with The ratio of taper can be adjusted arbitrarily.Cylindrical part makes the transition of middle section and bizet more smooth, however, in other embodiments In, middle section integrally can be taper, that is, not design cylindrical part.
In the present embodiment, as shown in figure 4, the inner core track L1 in middle section 20 is taper, so that middle section 20 fades to taper.Its In, as shown in figure 4, inner core track L1 is the line of each minimum point of the outer surface of mouth cavity planting body.As it can be seen that in the present embodiment, The inner core of whole oral cavity planting body is that the back taper transition of bizet 10 is the positive cone in middle section 20 and root 30 from top to bottom, thus Different degrees of extruding appropriate is generated to surrounding bone.In addition, as a shown in Figure 6, the end 32 of root 30 is in the present embodiment Hemispherical, to avoid damage to jawbone, mucous membrane of maxillary sinus etc..
In the present embodiment, as shown in Fig. 1,3,4, the depth of threat of the second external screw thread 21 is gradually increased from top to bottom.Root 30 Shape track L2 and inner core track L1 is taper, and the depth of threat of third external screw thread 31 is gradually increased from top to bottom.In the present embodiment, The depth of threat of third external screw thread 31 is greater than the depth of threat of the second external screw thread 21, and the screw pitch of third external screw thread 31 is equal to the second external screw thread 21 Screw pitch, the screw pitch can be in the range of 0.8-1.2mm, for example, 1mm.
That is, by cortex bone to cancellous bone direction, depth of threat is gradually increased.The pyramidal structure of whole oral cavity planting body is with plantation Being screwed into for body generates lateral pressurization to the bone of surrounding.Since cortex bone can bear larger holding power, required lateral pressurization is smaller, And cancellous bone is just the opposite, therefore, the middle section 20 of above-mentioned gradual change taper can laterally generate lesser pressurization to cortical bone region, And the depth of threat being gradually increased can laterally generate biggish pressurization to cancellous bone region, ultimately facilitate the initial steady of planting body It is fixed.
In the present embodiment, as shown in Figure 1, 2, the top H1 of each thread of the second external screw thread 21 and third external screw thread 31 is prominent For the lower part H2 of the thread, be formed as step external screw thread.Step external screw thread can cause transverse shear stress to surrounding bone.This Outside, in the identical situation of the Parameter Conditions such as screw pitch, depth of threat, the contact area of step external screw thread and surrounding bone is bigger, improves Be in contact with each other power, compared with regular screw threads, has the externally threaded planting body of step and jawbone contact stress smaller, enhancing plantation Body primary stability.
In addition, in the present embodiment, since step external screw thread and above-mentioned double thread structure can be improved implantation and stablize Property, therefore, one of said two devices or the structure combined can be advantageously implemented planting body and quickly be implanted into, that is, after extraction, in alveolar bone When not restoring, implantation that also can be stable by mouth cavity planting body, without providing certain convalescence for alveolar bone, thus substantially plus The implantation program of fast planting body, repeatedly medical trouble is reduced for patient.
In the present embodiment, as shown in Figure 1, the periphery of middle section 20 and root 30 is additionally provided with reversed self tapping slot 40, reversed self tapping The depth of slot 40 is gradually decreased from root 30 to middle section 20.Traditional positive self tapping slot are as follows: laborsaving when being screwed into, when extraction is laborious; And reversed self tapping slot 40 are as follows: it is laborsaving when extraction, it is laborious when being screwed into.Since the external thread structure of mouth cavity planting body entirety can guarantee Be quickly screwed with 30 stability of root, cooperate reversed self tapping slot 40 on this basis so that when need to adjust implantation direction when, reversely The shear action of rotary planting body, reversed self tapping slot 40 can be such that planting body adjustment direction is easier.Therefore, compared to positive self tapping Slot, the reversed self tapping slot 40 of the present embodiment realize mouth cavity planting body under the premise of guaranteeing stability, through its self tapping effect Easily adjust.
In the present embodiment, for reversed self tapping slot 40 30 bottom diameter of root is profile diameter 1/2, length is about implant diameter 1/2.It should be appreciated that parameter, the quantity of reversed self tapping slot 40 can be changed as needed, such as can be formed with equal around periphery Even distribution it is a plurality of.
In the present embodiment, as shown in fig. 6, the upper end 51 of the inner cavity 50 of mouth cavity planting body is Morse's taper structure, taper Within the scope of 25 ° -40 °, for example, 30 °, it can be fitted closely with base station corresponding angle for the part, concurrent raw food welding.This The taper of the upper end 51 of inner cavity can rise in conjunction with the chamfering with the upper surface of bizet 10 described in above-described embodiment in embodiment To avoiding bacterium from entering the effect inside planting body.
In addition, in the present embodiment, as shown in fig. 6, having anti-rotation convex at the close upper end 51 of the inner cavity of mouth cavity planting body Rise 52, it is outstanding to be formed in inner wall, be engaged with base station, prevent base station from rotating, to improve the company of mouth cavity planting body and base station Connect stability.In the present embodiment, the quantity of anti-rotation protrusion 52 is four, is uniformly distributed around inner wall.
In conclusion the mouth cavity planting body of the utility model has the advantage that
1, the bizet of the utility model is designed as back taper, can reduce the contact stress of bizet and cortex bone, to subtract It is few even to avoid generating calcination to cortex bone;Inverted cone-shaped structure makes planting body and jawbone contact stress maximum point under root It moves, the stress effect of reduction is conducive to avoid cortex bone stress is excessive from causing to absorb, and reduces absorption of alveolar bone;
2, the screw pitch of bizet is relatively shorter than the screw pitch of the other parts of mouth cavity planting body, so that the screw thread of bizet is closeer, hat The structure of similar micro- screw thread in portion is capable of increasing and cortex bone contact surface area, the applied stress of reduction and cortex bone;
3, in one embodiment, by cortex bone to cancellous bone direction, screw thread depth of threat is gradually increased, can be to surrounding when being screwed into Bone generate lateral pressurization, cooperate with stepped threads dental structure, laterally pressurization generated to surrounding bone after being screwed into, enhancing is initial steady It is qualitative, and
4, the monnolithic case of the mouth cavity planting body of the utility model is taper, and implantation torque is made to be converted into planting body and surrounding Bone contact force, to keep primary stability stronger.
Although exemplary embodiment describes the utility model with reference to several, it is to be understood that, term used is explanation With term exemplary, and not restrictive.Since the utility model can be embodied in a variety of forms without departing from practical new The spirit or essence of type, it should therefore be appreciated that above-described embodiment is not limited to any of the foregoing details, and should be in appended claims Defined by widely explain in spirit and scope, therefore fall into whole change and modification in claim or its equivalent scope It all should be appended claims to be covered.

Claims (12)

1. a kind of mouth cavity planting body comprising integrally formed bizet, middle section and root, middle part be connected to bizet and root it Between, which is characterized in that
Bizet is back taper, and the outer diameter of the upper end of bizet is less than the outer diameter of the lower end of bizet, and bizet has the first external screw thread;
The outer diameter in middle section is less than the outer diameter of bizet, and middle section has the second external screw thread;
The outer diameter of root is less than the outer diameter in middle section, and root has third external screw thread, and the first externally threaded screw pitch is less than the second outer spiral shell Line and the externally threaded screw pitch of third.
2. mouth cavity planting body according to claim 1, which is characterized in that the taper of bizet is between 4 ° -8 °, the first outer spiral shell Line is micro- screw thread, and the first externally threaded screw pitch is 0-0.5mm, and the second external screw thread and the externally threaded screw pitch of third are 0.8mm- 1.5mm。
3. mouth cavity planting body according to claim 2, which is characterized in that the first externally threaded tooth height is less than the second external screw thread It is high with the externally threaded tooth of third.
4. mouth cavity planting body according to claim 2, which is characterized in that the first external screw thread and the second externally threaded junction For smooth transition.
5. mouth cavity planting body according to claim 1, which is characterized in that the top in middle section is cylinder, the middle part in middle section It is taper with lower part, the inner core in middle section is taper.
6. mouth cavity planting body according to claim 5, which is characterized in that the second externally threaded depth of threat gradually increases from top to bottom Greatly.
7. mouth cavity planting body according to claim 1, which is characterized in that the shape and inner core of root are taper, third Externally threaded depth of threat is gradually increased from top to bottom.
8. mouth cavity planting body according to claim 7, which is characterized in that the externally threaded depth of threat of third is greater than the second external screw thread Depth of threat, the externally threaded screw pitch of third be equal to the second externally threaded screw pitch.
9. mouth cavity planting body according to claim 1, which is characterized in that the second external screw thread and the externally threaded each spiral shell of third The top of tooth protrudes from the lower part of the thread, is formed as step.
10. mouth cavity planting body according to claim 1, which is characterized in that outside the first external screw thread, the second external screw thread and third Screw thread is continuous double thread structure.
11. mouth cavity planting body according to claim 1, which is characterized in that the periphery of middle section and root be additionally provided with it is reversed from Slot is attacked, the depth of reversed self tapping slot is gradually decreased from root to middle section.
12. a kind of mouth cavity planting body component, including mouth cavity planting body, base station and the fastening spiral shell for connecting mouth cavity planting body and base station Bolt, which is characterized in that the mouth cavity planting body is the mouth cavity planting body as described in any one of claim 1 to 11.
CN201820425977.1U 2018-03-27 2018-03-27 A kind of mouth cavity planting body and mouth cavity planting body component Active CN208710123U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201820425977.1U CN208710123U (en) 2018-03-27 2018-03-27 A kind of mouth cavity planting body and mouth cavity planting body component
PCT/CN2018/123246 WO2019184474A1 (en) 2018-03-27 2018-12-24 Dental implant and dental implant assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820425977.1U CN208710123U (en) 2018-03-27 2018-03-27 A kind of mouth cavity planting body and mouth cavity planting body component

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CN208710123U true CN208710123U (en) 2019-04-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108403235A (en) * 2018-03-27 2018-08-17 北京莱顿生物材料有限公司 A kind of mouth cavity planting body and mouth cavity planting body component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108403235A (en) * 2018-03-27 2018-08-17 北京莱顿生物材料有限公司 A kind of mouth cavity planting body and mouth cavity planting body component
CN108403235B (en) * 2018-03-27 2020-05-15 北京莱顿生物材料有限公司 Oral implant and oral implant assembly

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