CN203598061U - Intraradicular Dental Implants - Google Patents

Abstract

A root-shaped intraosseous dental implant comprises a cutting part, a hard tissue integration part, a soft tissue integration part and a supporting part which are sequentially connected from bottom to top, wherein the outer surface of the hard tissue integration part is an annular arc-shaped curved surface and has the soft tissue shaping effect, the integration with the soft tissue in the oral cavity and the stable connection with a dental prosthesis device are facilitated, and the optimal chewing function requirement is met.

Description

Intraradicular Dental Implants

technical field

The utility model relates to a root-form endoosseous dental implant, in particular to a root-form endoosseous dental implant with good biological sealing.

Background technique

Dental clinical implant technology is applied to the edentulous area of the patient after tooth extraction. An artificial implant (implant) made of commercial pure titanium is surgically implanted into the alveolar bone of the patient's edentulous area, as a natural Tooth root function. After the healing period, the new bone will regenerate to form osseointegration with the artificial implant, and the new bone will be tightly osseointegrated into the surface structure of the artificial implant fixture. After the new bone is integrated, the precise abutment is rotated and connected. Finally, the dental prosthesis is customized and fixed on the abutment to achieve the function of replacing natural teeth.

The artificial dental implant technology subverts the invasive natural tooth grinding process of prosthetic crowns and bridges. It retains the natural dentine and can be implanted into the bone alone to support the final dental prosthetic device, exempting patients from all kinds of missing traditional dentures. Significantly increase the demand for occlusal function and improve the quality of life of patients.

Clinically, how to achieve primary stability during surgery is the key to the success of artificial dental implant osseointegration. The alveolar bone density, bone volume, and bone height ( bone height) and bone width (bone width) are different, especially in cases of severe bone resorption conditions, the external structure and screw thread design of the artificial implant are extremely important. Poor thread design and surface treatment will greatly increase the failure rate of implant osseointegration in artificial dental implant treatment.

How to avoid periimplantitis (periimplantitis) is an important factor for the success of artificial dental treatment and long-term maintenance of normal function, and the invasion of special bacteria in the oral cavity from the gingival sulcus is the cause of periimplantitis and surrounding bone resorption the main reason. So how to design a special artificial implant tooth neck, so that the formation of artificial implant and soft tissue integration (fibrointegration) to achieve the best biological sealing (biological sealing), prevent improper bacteria in the oral cavity from invading the gingival sulcus, and avoid peri-implant inflammation and The occurrence of surrounding bone resorption is an important issue in the clinical failure of artificial dental implants.

Utility model content

In order to solve the above-mentioned problem of integration of artificial implants and soft tissues to achieve better biological sealing, one of the purposes of this utility model is to provide a dental implant in the root bone, which can be integrated with the soft tissues in the oral cavity and stably connected to the dental implant. The prosthetic device achieves the best biological seal, prevents improper bacteria in the oral cavity from invading the gingival sulcus, avoids peri-implant inflammation and surrounding bone resorption, and at the same time achieves the best masticatory function requirements.

In order to achieve the above-mentioned purpose, the dental implant in the root bone of the present invention comprises a cutting part, a hard tissue integrating part, a soft tissue integrating part and a platform connected sequentially from bottom to top, and is characterized in that: the soft tissue The outer surface of the integration part is an annular arc-shaped curved surface. the

In a preferred embodiment, the soft tissue integration part and/or the hard tissue integration part is cone-shaped or column-shaped.

In a preferred embodiment, the soft tissue integration part is in the shape of an inverted cone.

In a preferred embodiment, the cutting part, the hard tissue integrating part, the soft tissue integrating part and the abutment part are integrally formed.

In a preferred embodiment, the cutting part, the hard tissue integrating part and the soft tissue integrating part are integrally formed into an implant body, and a connecting part is provided at the bottom of the abutment part for connecting the implant body.

In a preferred embodiment, the cutting part and the hard tissue integration part are integrally formed into an implant body, the abutment part and the soft tissue integration part are integrally formed into a pedestal, and a connection is provided at the bottom end of the abutment part for connecting the implant.

In a preferred embodiment, a blind hole is formed on the top edge of the implant body, and external threads are formed on the surface of the connecting portion to be locked in the blind hole.

In addition, the outer surface of the cutting part is formed with a threaded cutting edge and a plurality of longitudinal bone storage grooves; thereby, it is easy to cut and the cut bone debris is easy to gather in the bone storage groove and combine with the uncut tooth bone And the advantages of immediate regeneration.

In a preferred embodiment, the plurality of longitudinal bone storage tanks are three longitudinal bone storage tanks arranged equiangularly.

In a preferred embodiment, the hard tissue integration part includes: a locking part, the bottom edge of which is connected to the top edge of the cutting part, and the outer surface of the locking part is formed with a plurality of external trapezoidal threads, and these outer The arrangement of trapezoidal screw teeth has a first density; and a stable part, the bottom edge of which is connected to the top edge of the locking part, and the outer surface of the stable part is formed with a plurality of annular grooves, and these annular grooves The arrangement of has a second density, and the second density is higher than the first density.

Therefore, the present utility model has better effects compared with the prior art by means of the above-mentioned means: because the tooth neck of the implant (that is, the soft tissue integration part) forms a circular arc-shaped curved surface structure, the new soft tissue is closely attached to it. Growing on the arc-shaped surface, compared with a single plane, the arc-shaped surface can provide better soft tissue adhesion, so that the soft tissue adhesion effect is better, and it has the advantage of biological sealing to prevent the invasion of bacteria through the gingival sulcus.

Furthermore, the root-shaped intraosseous dental implant of the present invention can form a thread-like trapezoidal tooth surface in the implant hole by virtue of the self-tapping screw function of the locking part and the stabilizing part, so that it can be closely connected with the tooth bone. They are locked together and have the effect of drilling down and getting tighter and tighter.

In addition, in the dental implant in the root bone of the present invention, the design of the denser ring-shaped groove can immediately increase the closeness between the implant part and the dental head, and further have the function of stabilization or anchoring; at the same time, the new dental bone will It grows into the stepped annular groove of the reinforced part, and achieves double-effect and stable functions as if new bones buckle the steps.

Description of drawings

Fig. 1a and Fig. 1b are respectively a side view and a bottom view of the structure of the dental implant in the root bone of the first embodiment of the present invention.

Fig. 2 is a schematic exploded view of the structure of the dental implant in the root bone of the second embodiment of the present invention.

Fig. 3 is a schematic view showing the structural combination of the dental implant in the root bone of the second embodiment of the present invention.

Fig. 4 is a schematic exploded view of the structure of the dental implant in the root bone of the third embodiment of the present invention.

Fig. 5 is a schematic view showing the structural combination of the dental implant in the root bone of the third embodiment of the present invention.

Fig. 6 is a schematic diagram of a root-shaped intraosseous dental implant with a one-piece columnar design of the present invention.

Fig. 7 is a schematic diagram of the root-shaped intraosseous dental implant of the utility model with a two-stage design and a columnar design.

FIG. 8 is a schematic diagram of another two-stage root-shaped intraosseous dental implant of the present invention.

Label description:

10 root-shaped intraosseous dental implants; 14 abutments; 20 cutting parts; 201 cutting edges; 202 bone storage tanks; 21 hard tissue integration parts; 22 locking parts; 221 external trapezoidal screw teeth; 26 soft tissue integration part; 261 circular arc-shaped surface; 28, 38 implant; 30, 40 pedestal; 31 blind hole; ; 36 connecting portion; 361 upper section; 362 lower section; 363 external thread.

Detailed ways

Fig. 1a and Fig. 1b are the side view and bottom view of the structure of the first embodiment of the dental implant in the root bone of the present invention, respectively. As shown in Fig. 1a, the dental implant in the root bone 10 consists of A cutting portion 20, a hard tissue integration portion 21, a soft tissue integration portion 26 and a platform portion 14, in this embodiment, the dental implant 10 in the root bone is a one-piece implant design , that is, the cutting part 20 , the hard tissue integrating part 21 , the soft tissue integrating part 26 and the abutment part 14 are integrally formed, wherein the outer surface of the soft tissue integrating part 26 is an annular arc-shaped curved surface 261 .

In this context, the term "bottom-up" refers to the lower relative to the inner part of the alveolar bone in the patient's edentulous area during the dental implant procedure, and the upper part relative to the inner part of the alveolar bone exposed to the outer part of the alveolar bone; therefore , upper and lower will have different orientations depending on whether the patient's upper row of alveolar bone or lower row of alveolar bone is implanted in the implant procedure.

In the root-shaped intraosseous dental implant 10, the above-mentioned cutting portion 20, hard tissue integration portion 21, and soft tissue integration portion 26 have a root form or a taper shape, and are formed by a special nanometer surface. When the processed pure titanium structure is placed into the bone of the patient through minimally invasive surgery, the cutting part 20 and the hard tissue integration part 21 will form osseointegration with the hard tissue in the oral cavity, while the soft tissue integration part 26 will integrate with the soft tissue in the oral cavity , and the platform part 14 is used to connect the dental prosthetic device.

On the other hand, please refer to Fig. 1a and Fig. 1b at the same time, a sharp helical cutting edge 201 is formed on the outer surface of the cutting part 20, and three bone storage tanks 202 arranged at equal angles are formed longitudinally, but the bone storage tank 202 The number is not limited to three, but can have different numbers according to different designs; and the hard tissue integration part 21 includes a locking part 22 and a stabilizing part 24 from bottom to top, and the outer surface of the locking part 22 forms There are a plurality of outer trapezoidal threads 221, and the plurality of outer trapezoidal threads 221 are arranged with a first density, and the outer surface of the stabilizing part 24 is formed with a plurality of annular grooves 241, which are arranged with a second density, And the second density is higher than the first density.

Continuing the above description, when the dental implant procedure is to be performed, a hole is drilled in advance of the desired dental implant position so that the root-shaped intraosseous dental implant 10 can be implanted at the positioning point, and a locking device is used to cooperate with the abutment 14 during dental implantation The design of the dental implant 10 in the root bone is positioned and rotated, so that the cutting part 20 starts to cut the hard tissue with a rotation and advances vertically to facilitate the entry of other parts, wherein the cut bone chips are concentrated in the three bone storage tanks 202 inside, so that the bone chip can combine with the uncut hard tissue in the bone storage tank 202 and regenerate immediately, thereby stabilizing this area.

With the continuous rotation, the outer trapezoidal thread 221 of the locking part 22 will have a function similar to a self-tapping screw, and the outer trapezoidal thread 221 will form an internal thread on the hard tissue, so as to lock tightly with the hard tissue are fixed together, and because of the tapered design of the locking part 22, the locking part 22 has the effect of drilling down and locking tighter; and the denser annular groove design of the stable part 22 is more Immediately increase the tightness between the implanted part and the hard tissue, thereby having the function of stabilization or anchorage. Further, through continuous rotation, the soft tissue integration part 26 is combined with the soft tissue.

In the present utility model, since the outer surface of the soft tissue integration part 26 is designed as an annular arc-shaped curved surface 261, it can facilitate the growth of newborn soft tissue closely attached to the annular arc-shaped curved surface 261, and the adhesion effect of the soft tissue is good, thereby having a high biological seal ( The advantages of biological sealing) to avoid the invasion of bacteria. In addition, if the patient’s periodontal soft tissue shrinks abnormally due to injury, periodontal plastic surgery can be used to attach a dental prosthetic device to the gingiva, and the outer surface of the soft tissue integration part 26 is designed as a circular arc-shaped curved surface 261, which can provide healthy transplantation. The gingival connective tissue space makes periodontal plastic surgery convenient.

In the present utility model, in addition to the above-mentioned one-piece implant design, the root-shaped intraosseous dental implant 10 can also be a two-piece implant design. Figure 2 shows the second piece of the present utility model. The exploded schematic view of the structure of the dental implant in the root bone of the embodiment, as shown in the figure, the dental implant in the root bone 10 is assembled by an implant 28 and a platform 30, and the implant 28 includes a cutting part 20. A hard tissue integration part 21 and a soft tissue integration part 26, the outer surface design of each part has been described in the first embodiment, but in the second embodiment, a top edge of the soft tissue integration part 26 is machined with a The blind hole 31 is formed by connecting the inner tapered hole 32, the inner polygonal hole 33 and the inner threaded hole 34 sequentially from top to bottom; The bottom edge of the abutment part 35, the upper section 361 of the connecting part 36 is an outer tapered surface with a wide top and a narrow bottom, and an external thread 363 is formed on the surface of the lower section 362 of the connecting part 36, so as to be locked in by the external thread 363. The threaded hole 34 , as shown in FIG. 3 , allows the abutment 30 and the implant body 28 to be combined together to form the root-shaped intraosseous dental implant 10 .

Continuing the above description, please refer to FIG. 2 again. In the second embodiment, when performing the implant procedure, the implant body 28 is locked into the hard tissue by using the locking device to cooperate with the design of the inner polygonal hole 33 in the blind hole 31 And in the soft tissue, after the implant body 28 is stabilized, the connecting portion 36 of the abutment 30 is locked in the internal threaded hole 34 for subsequent connection of the dental prosthetic device.

Fig. 4 is a schematic exploded view of the structure of the root-shaped intraosseous dental implant 10 according to the third embodiment of the present invention. As shown in the figure, the root-shaped intraosseous dental implant 10 is assembled by an implant 38 and a base 40 As a result, the implant body 38 only includes a cutting portion 20 and a hard tissue integration portion 21. The outer surface design of each position has been described in the first embodiment, but a top edge of the hard tissue integration portion 21 is machined with a The blind hole 31 is formed by connecting the inner tapered hole 32, the inner polygonal hole 33 and the inner threaded hole 34 sequentially from top to bottom; The bottom edge of the platform part 35 and the soft tissue integration part 26 are an annular arc-shaped curved surface 261 , and a connecting part 36 is formed on the bottom edge of the soft tissue integration part 26 .

Wherein, the upper section 361 of the connecting part 36 is an outer tapered surface with a wide top and a narrow bottom, and an external thread 363 is formed on the surface of the lower section 362 of the connecting part 36, so as to be locked in the internal threaded hole 34 by the external thread 363, as As shown in Fig. 5, the abutment seat 40 and the implant body 38 are combined together to form the root-shaped intraosseous dental implant 10; Cooperate with the design of the inner polygonal hole 33 in the blind hole 31, lock the implant 38 into the hard tissue, and after the implant 38 is stabilized, lock the connecting part 36 of the abutment 40 in the inner threaded hole 34 to For attachment of dental prosthetic devices.

Wherein, in the second embodiment, referring to FIG. 2, the cutting part 20, the hard tissue integrating part 21 and the soft tissue integrating part 26 are integrally formed into the implant body 28, while the abutment part 35 and the connecting part 36 are integrally formed into a support part. Base 30; in the third embodiment, please refer to Fig. 4, the cutting part 20 and the hard tissue integration part 21 are integrally formed into the implant body 38, and the abutment part 35, the soft tissue integration part 25 and the connecting part 36 are then integrally formed into pedestal 40.

In this utility model, no matter it is the one-stage implant design in the first embodiment, or the two-stage implant design in the second and third embodiments, they all have the following characteristics: (1) The appearance of the soft tissue integration part is round The design of the curved curve has the effect of soft tissue shaping, which is conducive to the integration with the soft tissue in the oral cavity and the stable connection of the dental prosthetic device to achieve the best masticatory function requirements; and it can provide the ability to transplant healthy gingival connective tissue during periodontal plastic surgery. space. (2) Utilizing the design of three bone storage tanks evenly distributed on the cutting part and matching with three sharp cutting edges, it has the characteristics of easy cutting and easy concentration of cut bone chips in the three bone storage tanks, so that the bone chips can be stored in the three bone storage tanks. The combination and immediate regeneration of the uncut hard tissue in the bone groove has the advantage of stabilizing this area. (3) The outer trapezoidal thread design of the locking part of the hard tissue integration part can form a thread-like trapezoidal tooth surface in the implant hole by the function of self-tapping thread when the locking part is rotated into the hard tissue, and It can be tightly locked together with the hard tissue. At the same time, due to the tapered design of the locking part, the locking part has the effect of drilling down and locking tighter; while the hard tissue integration part has a tighter ring shape. The design of the groove can immediately increase the tightness between the implanted part and the hard tissue, thereby having the function of stabilization or anchoring.

In the above-mentioned first, second and third embodiments, the cutting part 20, the hard tissue integrating part 21 and the soft tissue integrating part 26 have a conical shape, but it is not limited thereto. In other embodiments, the hard tissue integrating part 21 and the soft tissue integration part 26 can also be cylindrical. Figure 6 shows a schematic diagram of a one-stage and columnar dental implant in the root of the utility model. Figure 7 shows a two-stage and Schematic diagram of a root-shaped intraosseous dental implant with a columnar design. As shown in the figure, the hard tissue integration part 21 and the soft tissue integration part 26 do not have a tapered design, but the hard tissue integration part 21 still has the above-mentioned external trapezoidal screw teeth 221 and relatively The dense annular groove 241 is designed, and the outer surface of the soft tissue integration part 26 is an annular arc-shaped curved surface 261.

In addition, in one embodiment, as shown in FIG. 8, the outer shape of the hard tissue integration part 21 is cylindrical, and the outer surface is equipped with an outer trapezoidal thread 221 and a denser annular groove 241, while the soft tissue integration part The appearance of 26 is conical (inverted conical), and the outer surface is an annular arc-shaped curved surface 261; although the design of this cylindrical hard tissue integration part does not have the effect of drilling deeper and tighter and locking tighter, However, with the design of the external trapezoidal thread, it can still be tightly locked with the hard tissue through the function of self-tapping thread.

To sum up, the utility model is a variable one-stage implant or two-stage implant, which can better meet the needs of complex and changeable clinical cases and produce rapid and stable osseointegration. The tooth neck (i.e. the soft tissue integration part) is specially designed to enhance the integration of the implant and the soft tissue of the tooth neck, and has a soft tissue shaping effect to achieve the best bio-sealing effect, prevent bacteria from invading, and avoid periimplantitis ) and surrounding bone resorption. The multi-stage special thread design structure on the outside of the implant can further enhance the primary stability during the operation, retain the natural bone quality, and achieve stable osseointegration between the new bone and the implant.

The above-described embodiments are only to illustrate the technical ideas and characteristics of the present utility model, and its purpose is to enable those skilled in this art to understand the content of the present utility model and implement it accordingly, and should not limit the patent of the present utility model with this scope, that is, all equivalent changes or modifications made according to the spirit disclosed in the utility model should still be covered within the patent scope of the utility model.

Claims (10)

1. a dental implant in root shape bone, comprises a cutting part, an integration portion of sclerous tissues, a soft tissue integration portion and a platform portion and from bottom to top sequentially connects, and it is characterized in that: the outer surface of this soft tissue integration portion is an annular arc curve.

2. dental implant in as claimed in claim 1 shape bone, is characterized in that, this soft tissue integration portion and/or integration portion of sclerous tissues are taper or column.

3. dental implant in as claimed in claim 1 shape bone, is characterized in that, this soft tissue integration portion is inverted cone shape.

4. dental implant in as claimed in claim 1 shape bone, is characterized in that, this cutting part, integration portion of sclerous tissues, soft tissue integration portion and a platform portion are formed in one.

5. dental implant in as claimed in claim 1 shape bone, is characterized in that, this cutting part, integration portion of sclerous tissues and soft tissue integration portion are one-body molded is an implant, and this platform portion bottom is provided with a junction, for connecting this implant.

6. dental implant in as claimed in claim 1 shape bone, it is characterized in that, this cutting part and this integration portion of sclerous tissues are one-body molded is an implant, and this platform portion and this soft tissue integration portion are one-body molded is a pedestal, this pedestal bottom is provided with a junction, for connecting this implant.

7. dental implant in the root shape bone as described in claim 5 or 6, is characterized in that, the apical margin of this implant is formed with a blind hole, and the surface of this connecting portion is formed with external screw teeth, to be locked in this blind hole.

8. dental implant in the root shape bone as described in any one in claim 1 to 6, is characterized in that, the outer surface of this cutting part is formed with screw thread cutting edge, and many longitudinal bone storing grooves.

9. dental implant in as claimed in claim 8 shape bone, is characterized in that, these many longitudinal bone storing grooves are longitudinal bone storing groove that three isogonisms are arranged.

10. dental implant in the root shape bone as described in any one in claim 1 to 6, it is characterized in that, this integration portion of sclerous tissues comprises: a locking part, its root edge connects the apical margin of cutting part, and the outer surface of this locking part is formed with multiple outer trapezoidal threads, the arrangement of these outer trapezoidal threads has one first density; And a firm portion, its root edge connects the apical margin of this locking part, and the outer surface of this firm portion is formed with multiple annular ditch grooves, and the arrangement of these annular ditch grooves has one second density, and this second density is higher than this first density.

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