CN218484682U - Cheekbone implant and implant assembly - Google Patents

Abstract

The application relates to the technical field of dental implantation, in particular to a cheekbone implant and an implant assembly. The zygomatic bone implant comprises an implant head, an implant transition part and an implant neck which are sequentially connected, wherein the implant head comprises a cone part and a column part, and the cone part comprises a first threaded area; the cylindrical portion comprises a second threaded region; the surface of the implant transition part is provided with a depressed area, the neck of the implant comprises a third thread area and a smooth platform area, and the third thread area is connected with the implant transition part. This application is equipped with the depressed area through the surface at the planting body transition portion, because the planting body transition portion sets up at the cheekbone position, through the cooperation of depressed area, just can not make facial very high, and the cheekbone planting back face can seem more natural pleasing to the eye.

Description

Cheekbone implant and implant assembly

Technical Field

The application relates to the technical field of dental implantation, in particular to a cheekbone implant and an implant assembly.

Background

The zygomatic implantation is a tooth implantation repair method adopted in tooth implantation repair, which is a method that maxillary bone mass is seriously damaged or atrophied, a patient does not want to accept bone augmentation operations such as bone implantation, bone distraction and the like, and the tooth implantation repair is expected. The zygomatic implantation means that the dental implant is implanted into the zygomatic bone, and 2-4 conventional dental implants are implanted into the anterior dental area by means of the compact bone block of the zygomatic bone so as to complete the repair of the maxillary dentition. The length of the zygomatic bone implant is generally 30.0-60 mm. The zygomatic implant enters the maxillary sinus from the dental ridge and enters the zygomatic bone through the mucosa outside or the outer bone wall of the maxillary sinus, and most of the middle part of the implant is exposed outside the mucosa of the maxillary sinus and under soft tissues. The length of the cheekbone implant is closely related to the jaw-face anatomical structure of the patient. Generally, the zygomatic implant is implanted on the atrophied alveolar ridge palatal side of the posterior dental zone, the cortical bone of the alveolar bone of a patient with severe bone atrophy is less, and after the implant repair is completed, the absorption of the cervical bone of the zygomatic implant is easy to occur, and finally the cervical thread of the implant is exposed, so that complications such as peri-implant inflammation and oronasal maxillary sinus fistula occur. Researches show that the existing full-thread coarse-surface zygomatic implant clinically used at present has the problems of peri-implantitis, maxillary sinus irritability inflammation, aseptic inflammation of the zygomatic buccal surface and other complications, in recent years, scholars at home and abroad propose an improved operation to reduce the generation of related complications, and no zygomatic implant for avoiding facial protrusion of a patient after the zygomatic implant is implanted is provided. Therefore, there is a pressing need for improved designs of zygomatic implants in various forms that meet the clinical needs.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages of the prior art, it is an object of the present application to provide a zygomatic implant to solve the problems of the prior art.

To achieve the above and other related objects, the present application provides, in one aspect, a zygomatic implant comprising an implant head, an implant transition portion and an implant neck portion connected in sequence, wherein the implant head comprises a cone portion and a cylinder portion which are adjacent to each other, and the cone portion comprises a first threaded zone; the cylindrical portion includes a second threaded region; the surface of implant transition portion is equipped with the depressed area, the implant neck includes third screw thread district and smooth platform district, the third screw thread district with implant transition portion is connected.

In some embodiments of the present application, the outer diameter of the cone portion increases from the end distal to the cylindrical portion to the end proximal to the cylindrical portion.

In some embodiments of the present application, the diameter of the cylindrical portion is equal from an end distal to the implant transition portion to an end proximal to the implant transition portion.

In some embodiments of the present application, an end of the conical portion remote from the cylindrical portion is provided with a tip.

In some embodiments of the present application, the cone portion is provided with a chip groove; the extending direction of the chip grooves extends from one end far away from the cylindrical body part to one end close to the cylindrical body part.

In some embodiments of the present application, the first threaded region includes a self-tapping thread segment, and each of the self-tapping thread segments has an internal thread disposed between adjacent threads.

In some embodiments of the present application, the working face of each thread in the self-tapping thread segment is at an angle α,5 ° α 30 °, to the radial direction of the cone portion.

In some embodiments of the present application, the working face of each of the internal threads is at an angle β,5 ° ≦ β ≦ 30 °, with respect to its radial direction along the taper portion.

In some embodiments of the present application, a thread extension direction of the built-in thread coincides with a thread extension direction of the self-tapping thread section.

In some embodiments of the present application, the thread depth of the self-tapping thread segment is greater than the thread depth of the built-in thread.

In some embodiments of the present application, the thread thickness of the self-tapping thread segment is greater than the thread thickness of the built-in thread.

In some embodiments of the present application, the thread pitches of the self-tapping thread segments are equal.

In some embodiments of the present application, the pitch between adjacent ones of the built-in threads is equal.

In some embodiments of the present application, the self-tapping thread section comprises a single thread self-tapping thread section and a double thread self-tapping thread section; the double-thread self-tapping thread section is connected with the second thread region.

In some embodiments of the present application, the internal thread is a double lead thread.

In some embodiments of the present application, the thread thickness of the single thread self-tapping thread section is less than the thread thickness of the double thread self-tapping thread section.

In some embodiments of the present application, the thread thickness of the single thread self-tapping thread section is less than the thread thickness of the double thread self-tapping thread section.

In some embodiments of the present application, the second threaded region comprises horizontal threaded segments.

In some embodiments of the present application, the thread depth of the self-tapping thread section is greater than the thread depth of the second threaded region.

In some embodiments of the present application, the thread thickness of the self-tapping thread segments is greater than the thread thickness of the second threaded region.

In some embodiments of the present application, the self-tapping thread segments have a pitch that is greater than the pitch of the second threaded region.

In some embodiments of the present application, the outer surface of the implant transition is a smooth surface.

In some embodiments of the present application, the angle between the working surface of the thread in the third thread zone and the radial direction of the neck of the implant is between 5 ° and 20 °.

In some embodiments of the present application, the depression depth d of the depression area is 1 to 3mm.

In some embodiments of the present application, the depressed length L0 of the depressed region is 15 to 40mm.

In some embodiments of the present application, the width W of the recessed area is 3 to 5mm.

In some embodiments of the present application, a distance L2 between an end of the recessed area adjacent to the implant head and an end of the implant head adjacent to the transition portion of the implant is 3 to 8mm.

In some embodiments of the present application, a distance L1 between an end of the recessed area near the neck of the implant and an end of the neck of the implant near the transition portion of the implant is 3 to 8mm.

In some embodiments of the present application, the ratio of the length of the third threaded zone to the length of the smooth land zone is from 2 to 5:2 to 4.

In some embodiments of the present application, the length ratio of the implant head to the implant neck is 6:1 to 3:1.

in some embodiments of the present application, the implant transition part has a length of 10 to 45mm.

In some embodiments of the present application, the third threaded zone has a length of 2 to 5mm.

In some embodiments of the present application, the pitch of the third threaded zone is 0.3 to 0.5mm.

In some embodiments of the present application, the third threaded zone has a thread depth of 0.3 to 0.5mm.

In some embodiments of the present application, the thread thickness of the third threaded zone is between 0.3 and 0.5mm.

In some embodiments of the present application, the implant transition portion and the implant neck portion each have an outer diameter of 4.0 to 5mm.

In some embodiments of the present application, the single thread self-tapping thread section and the double thread self-tapping thread section have a length ratio of 1:1 to 1:2.

in some embodiments of the present application, the material of the zygomatic implant is grade five titanium.

Another aspect of the present application provides an implant assembly comprising an anterior zygomatic implant, and further comprising an abutment coupled to the zygomatic implant.

In summary, the zygomatic bone implant and the implant assembly provided by the embodiments of the present application have the following advantages:

1. the taper part is designed in a taper shape, the thread section of the zygomatic bone is implanted to form two sections of threads, the large-pitch self-tapping thread design facilitates self-tapping implantation, bone damage during implantation is reduced, and good initial stability is obtained. The horizontal thread part facilitates the formation of osseointegration.

2. The concave area is arranged on the outer surface of the implant transition part, and the implant transition part is arranged at the cheekbone part, so that the face cannot be very high through the matching of the concave area, and the face looks more natural and attractive after the cheekbone implant is implanted.

3. The third thread area is arranged at one end of the neck of the implant, which is close to the transition part of the implant, so that the implant is suitable for a patient with a thinner alveolar bone and can be fixed on the zygomatic bone through the third thread area.

4. The smooth surface of the transition part of the implant avoids the stimulating wound of the maxillary sinus membrane, protects the integrity of the maxillary sinus membrane and can effectively avoid various biological complications.

Drawings

Fig. 1 is a schematic perspective view of an angle of a zygomatic implant according to the present application.

Fig. 2 is a schematic perspective view of another angle of the zygomatic implant of the present application.

Fig. 3 is a front view structure diagram of the zygomatic bone implant of the present application.

Fig. 4 is a left-view structural schematic diagram of the zygomatic implant of the present application.

Fig. 5 is a rear view structural schematic diagram of the zygomatic implant of the present application.

Fig. 6 is a schematic top view of a zygomatic implant of the present application.

Fig. 7 is a bottom view of the zygomatic implant of the present application.

Reference numbers of elements in the figures of the present application:

1. implant head

11. Taper part

111. First threaded zone

1111. Self-tapping screw thread section

11111. Single thread self-tapping thread segment

11112. Double-thread self-tapping thread section

1112. Built-in screw thread

12. Cylindrical part

121. Second threaded zone

13. Tip end

14. Chip groove

2. Implant transition part

21. Depressed region

3. Implant neck

31. Third threaded zone

32. Smooth plateau area

Detailed Description

In the description of the present application, it should be noted that the structures, the ratios, the sizes, and the like shown in the drawings attached to the present application are only used for matching the disclosure of the present application, so as to be understood and read by those skilled in the art, and are not used for limiting the conditions that the present application can be implemented, so that the present application has no technical significance, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes, without affecting the efficacy and the achievable purpose of the present application, should still fall within the scope of the technical content disclosed in the present application. While the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 7, in one aspect, the present embodiment provides a zygomatic bone implant, which includes an implant head 1, an implant transition part 2 and an implant neck 3 connected in sequence, where the implant head 1 includes a cone part 11 and a cylinder part 12 which are adjacent to each other, and the cone part 11 includes a first threaded region 111; the cylindrical portion 12 comprises a second threaded zone 121; the outer surface of the implant transition part 2 is provided with a recessed area 21, the implant neck 3 comprises a third threaded area 31 and a smooth platform area 32, and the third threaded area 31 is connected with the implant transition part 2. The zygomatic implant of the present application, on the one hand, increases the self-tapping of the implant by the first threaded region 111, and may facilitate the formation of osseointegration by the design of the second threaded region 121. On the other hand, the concave area 21 is arranged on the outer surface of the implant transition part 2, and the implant transition part 2 is arranged at the cheekbone part, so that the face cannot be very high through the matching of the concave area 21, and the face looks more natural and beautiful after the cheekbone implant is implanted. On the other hand, a third threaded zone 31 is provided at the end of the implant neck 3 near the implant transition part 2, so that the implant is suitable for a patient with a thinner alveolar bone and can be fixed on the zygomatic bone through the third threaded zone 31. In addition, the implant neck 3 of the present application is not coated, but only the third thread region 31 is provided on the metal mechanical surface of the implant neck 3, so that even if the thread of the third thread region 31 is exposed, surrounding inflammation is not easily generated, and local cleaning is used.

In the zygomatic bone implant provided in the embodiment of the present application, as shown in fig. 1 to 5, the outer diameter of the taper portion 11 gradually increases from the end far away from the cylindrical portion 12 to the end close to the cylindrical portion 12, which is convenient for self-tapping. The diameter of the cylindrical portion 12 is equal from the end far away from the implant transition portion 2 to the end close to the implant transition portion 2. The end of the conical part 11 away from the cylindrical part 12 is provided with a tip 13, and the tip 13 has cutting capability.

In the zygomatic bone implant provided in the embodiment of the application, as shown in fig. 1 to 5, the taper portion 11 is provided with a chip groove 14; the flutes 14 extend from an end remote from the body 12 towards an end adjacent the body 12. Such design makes at the implant implantation in-process, collects cancellous bone, reduces pressure, avoids the heat production, does benefit to vascularization bone formation, has certain anti-rotation of adversity simultaneously.

In the zygomatic bone implant provided in the embodiment of the present application, as shown in fig. 1 to 5, the first threaded region 111 includes a self-tapping threaded section 1111, and a built-in thread 1112 is respectively disposed between each adjacent threads of the self-tapping threaded section 1111.

In the zygomatic bone implant provided by the embodiment of the application, as shown in fig. 3 and 5, the included angle between the working surface of each thread in the self-tapping thread section 1111 and the radial direction of the thread along the taper part 11 is alpha, and alpha is more than or equal to 5 degrees and less than or equal to 30 degrees. Such a design facilitates implant implantation and reduces frictional heating.

In the zygomatic implant provided in the embodiment of the present application, as shown in fig. 3 and 5, the included angle between the working surface of each thread in the built-in thread 1112 and the radial direction of the built-in thread along the conical body 11 is β, and β is greater than or equal to 5 ° and less than or equal to 30 °. Such a design facilitates implant implantation and reduces frictional heat generation.

In the zygomatic implant provided by the embodiment of the present application, the thread extending direction of the built-in thread 1112 is consistent with the thread extending direction of the self-tapping thread section 1111. I.e. the helical direction is uniform.

In the zygomatic implant provided by the embodiment of the application, as shown in fig. 1 to 5, the thread depth of the self-tapping thread section 1111 is greater than that of the built-in thread 1112. The thread depth of the self-tapping thread section 1111 means the thread height of each thread in the self-tapping thread section 1111. The thread depth of the internal thread 1112 refers to the thread height of the thread of the internal thread 1112. In one embodiment, the thread depth of the self-tapping thread section 1111 is 0.5 to 2mm. The thread depth of the built-in thread 1112 is 0.1-0.2 mm.

In the zygomatic implant provided in the embodiments of the present application, as shown in fig. 1 to 5, the thread thickness of the self-tapping thread section 1111 is greater than the thread thickness of the built-in thread 1112. The thread thickness of the self-tapping thread section 1111 refers to the height of the outer side surface of each thread of the self-tapping thread section 1111 in the axial direction of the cone portion 11. The thread thickness of the internal thread means the height of the outer side surface of the thread in the axial direction of the tapered portion 11. In one embodiment, the thread thickness of the self-tapping thread section 1111 is 0.5 to 1.5mm. The thread thickness of the internal thread 1112 is 0.1-0.2 mm.

In the zygomatic implant provided in the embodiments of the present application, as shown in fig. 1 to 5, the thread pitches of the self-tapping thread section 1111 are equal. The pitch of the self-tapping screw section 1111 refers to a distance between adjacent 2 screws in the axial direction of the cone portion 11. The thread pitch of the self-tapping thread section 1111 is 2-3 mm.

In the zygomatic implant provided by the embodiment of the application, the thread pitches between the adjacent internal threads 1112 are equal. The pitch between the adjacent internal threads 1112 refers to a distance between the adjacent 2 internal threads 1112 in the axial direction of the taper portion 11. The thread pitch between the self-tapping thread section 1111 and the adjacent built-in thread 1112 is 1-1.5 mm.

In the zygomatic bone implant provided by the embodiment of the application, as shown in fig. 1 to 5, the self-tapping thread section comprises a single-thread self-tapping thread section 11111 and a double-thread self-tapping thread section 11112; the double-thread self-tapping thread segment 11112 is connected to the second threaded region 121.

In the zygomatic implant provided by the embodiment of the present application, the internal thread 1112 is a double-start thread.

In the zygomatic implant provided in the embodiment of the present application, as shown in fig. 1 to 5, the thread thickness of the single-thread self-tapping thread section 11111 is smaller than the thread thickness of the double-thread self-tapping thread section 11112. The thread thickness refers to the height of the outer side surface of each thread in the single-thread self-tapping thread section 11111 or the double-thread self-tapping thread section 11112 in the axial direction of the tapered portion 11. The design enables the thread to have self-tapping and cutting functions, facilitates the implantation of the implant and reduces heat generated by friction.

In the zygomatic bone implant provided by the embodiment of the application, as shown in fig. 1 to 5, the thread thickness of the single-thread self-tapping thread section 11111 is smaller than that of the double-thread self-tapping thread section 11112. The thread thickness refers to the height of the outer side surface of each thread in the single-thread self-tapping thread section 11111 or the double-thread self-tapping thread section 11112 in the axial direction of the tapered portion 11. The design enables the thread to have self-tapping and cutting functions, facilitates the implantation of the implant and reduces heat generated by friction.

In the zygomatic bone implant provided by the embodiment of the application, as shown in fig. 1 to 5, the length ratio of the single-thread self-tapping thread section 11111 to the double-thread self-tapping thread section 11112 is 1 to 1. The length refers to the length of the thread segment in the axial direction of the cone portion 11. The design facilitates the implantation of the implant and the extrusion of the alveolar bone, is favorable for obtaining the initial stability of the dental implant, reduces heat production, and can greatly improve the success rate of implant repair. The length of the self-tapping thread section 11111 is 4-6 mm; the length of the double thread section 2 is 6-8 mm.

In the zygomatic implant provided in the embodiment of the present application, as shown in fig. 1 to 5, the second threaded region 121 includes a horizontal threaded section. The transition part 2 of the implant is fine and dense threads, which is beneficial to the formation of osseointegration.

In the zygomatic implant provided in the embodiment of the present application, as shown in fig. 1 to 5, the thread depth of the self-tapping thread section 1111 is greater than that of the second thread region 121. Specifically, the thread depth of the self-tapping thread section 1111 is greater than the thread depth of the horizontal thread section. Thread depth refers to the thread height of each thread in the respective section. The design ensures that the implant has a certain extrusion effect on cancellous bone in the implantation process, obtains ideal initial stability and is beneficial to bone union formation.

In the zygomatic implant provided by the embodiment of the present application, as shown in fig. 1 to 5, the thread depth of the self-tapping thread section 1111 is greater than the thread thickness of the second thread region 121. Specifically, the thread thickness of the self-tapping thread section 1111 is greater than the thread thickness of the horizontal thread section. The design has the advantages of being beneficial to the strong self-tapping performance of the implant and good bone combination. The thread thickness of the self-tapping thread section 1111 means a thickness of each thread outer side surface of each thread of the self-tapping thread section 1111 in the axial direction of the cone portion 11. The thread thickness of the horizontal thread segments 21 refers to the thickness of the outer side surface of each thread of the horizontal thread segments 21 in the axial direction of the cylindrical body 12.

In the zygomatic implant provided in the embodiments of the present application, as shown in fig. 1 to 5, the pitch of the self-tapping thread section 1111 is greater than that of the second thread region 121. Specifically, the pitch of the self-tapping screw section 1111 is greater than the pitch of the horizontal screw section. This contributes to a stronger self-tapping property of the implant. The pitch of the self-tapping thread section 1111 refers to a distance between adjacent 2 threads in the axial direction of the cone portion 11. The pitch of the horizontal thread segments 21 refers to the distance between adjacent 2 threads in the axial direction of the body portion 12.

In the zygomatic bone implant provided by the embodiment of the application, as shown in fig. 1 to 5, the outer surface of the implant transition part 2 is a smooth surface, is positioned on the inner side or the outer side of the bony maxillary sinus, is a non-threaded smooth surface for machining, is favorable for protecting the mucosa of the maxillary sinus, and avoids biological complications.

In the zygomatic bone implant provided in the embodiment of the present application, as shown in fig. 3 and 5, an included angle between a working plane of the thread in the third threaded zone 31 and the radial direction of the neck 3 of the implant is 5 to 20 degrees; the advantage of such a design is that it facilitates bone tissue integration.

In the zygomatic bone implant provided in the embodiment of the present application, as shown in fig. 3, the recess depth d of the recess 21 is 1-3 mm. The design has the advantage that the implant is prevented from protruding on the face, so that the appearance is not influenced. The recess depth d of the recessed zone 21 refers to the extension distance of the recessed zone 21 in the radial direction of the implant transition 2 from the outer surface of the implant transition 2 towards the center of the implant transition 2.

In the zygomatic bone implant provided by the embodiment of the application, as shown in fig. 5, the recessed length L0 of the recessed region 21 is 15-40 mm. The advantage of design like this is that after the implant is implanted, avoid patient's facial protrusion, pleasing to the eye effect. The recessed length L0 of the recessed area 21 refers to a distance that the recessed area 21 extends along the axial direction of the implant transition 2 from a side of the implant transition 2 close to the implant neck 3 towards a side of the implant transition 2 close to the implant head 1.

In the zygomatic bone implant provided by the embodiment of the application, as shown in fig. 5, the distance L2 between one end of the recessed region 21 close to the implant head 1 and one end of the implant head 1 close to the implant transition part 2 is 3-8 mm.

In the zygomatic bone implant provided by the embodiment of the application, the distance L1 between one end of the concave area 21 close to the neck 3 of the implant and one end of the neck 3 of the implant close to the transition part 2 of the implant is 3-8 mm.

In the zygomatic bone implant provided by the embodiment of the application, the width W of the recessed area 21 is 3-5 mm. The width refers to the linear distance that the recessed area 21 extends from one end of the outer surface of the implant transition 2 to the other.

In the zygomatic bone implant provided in the embodiment of the present application, the ratio of the length of the third threaded region 31 to the length of the smooth platform region 32 is 2 to 5:2 to 4. Such a design has the advantage of both facilitating osseointegration and preventing inflammation from occurring. In a preferred embodiment, the length of the third threaded zone 31 may be between 2 and 5mm; 2-3 mm; 3-4 mm; 4-5 mm; 2-5 mm; or 3-5 mm, etc. The length of the smooth plateau 32 is 2-4 mm.

In the zygomatic bone implant provided in the embodiment of the present application, the thread depth of the third threaded region 31 is 0.3-0.5 mm. The thread depth of the third threaded zone 31 refers to the thread height of each thread in the third threaded zone 31. The advantage of this design is that it facilitates osseointegration while preventing peri-implantitis.

In the zygomatic bone implant provided by the embodiment of the application, the thickness of the thread of the third threaded zone 31 is 0.3-0.5 mm. The thread thickness of the third threaded zone 31 means that the height of the outer side surface of each thread in the third threaded zone 31 in the axial direction of the implant neck 3 is 0.2-0.5mm.

In the zygomatic bone implant provided in the embodiment of the present application, the pitch of the third threaded region 31 is 0.3-0.5 mm. The pitch of the third threaded zone 31 refers to the spacing between adjacent 2 threads in the axial direction of the implant neck 3. The design has the advantages of being beneficial to cleaning and preventing peri-implantitis.

In the zygomatic implant provided in the embodiment of the present application, the smooth platform region 32 is a smooth surface machined by a thread-free machine. Therefore, if alveolar ridge crest part alveolar bone absorption occurs after dental implantation restoration is finished, peri-implantitis can be effectively avoided.

In the zygomatic bone implant provided by the embodiment of the application, the conical part 11 of the implant head 1 is a cone, and the cylindrical part 12 is a cylinder. The implant transition part 2 is a cylinder containing a depressed area 21, the implant neck 3 is a cylinder, and the outer diameters of the implant head 1, the implant transition part 2 and the implant neck 3 at the connection position are equal. The implant transition part 2 and the implant neck part 3 have the same outer diameter at their connection. Specifically, the outer diameters of the implant transition part 2 and the implant neck part 3 are both 4-5 mm; the outer diameter of the head part 1 of the implant is 2.8-5 mm.

Further, the total length of the implant transition part 2 and the implant neck part 3 can be set according to actual needs, and for example, can be 30mm to 60mm. More specifically, the thickness may be 30mm, 35mm, 37.5mm, 40mm, 42.5mm, 45mm, 47.5mm, 50mm, 52.5mm, 55mm, 57.5mm, 60mm or the like. The lengths of the head part 1 and the neck part 3 of the implant with different lengths are unchanged, and the length of the transition part 2 of the implant is changed. The design is to select the dental implant with the proper length according to different bone heights of clinical patients.

In a preferred embodiment, the length ratio of the implant head 1 to the implant neck 3 is 6:1 to 3:1, for example, the length of the implant head 1 ranges from 12 to 18mm. The length of the implant neck 3 ranges from 4 to 6mm.

In a preferred embodiment, the length of the implant transition part 2 is 10 to 45mm. For example, it may be 10 to 30mm, or 30 to 45mm.

The zygomatic bone implant provided by the embodiment of the application is made of five-grade titanium.

In the embodiment of the present application, one end of the implant neck 3 away from the implant transition portion 2 is a hollow inner hexagonal structure, when the implant is packaged from a factory, the implant neck 3 is provided with an implanted carrying body, the carrying body is an outer hexagonal structure, and the outer hexagonal structure of the carrying body is matched with the inner hexagonal structure of the implant neck 3. The carrying body is made of disposable medical stainless steel, and the tail part of the carrying body is provided with a covering screw. Because the implant neck 3 is a hollow structure, in order to be convenient to install and carry, the implant and the carrying body are matched for use, and the carrying body can be taken down after the implant is installed.

Another aspect of the present application provides an implant assembly, including the zygomatic implant provided in the first aspect of the present application, and further including an abutment connected to the zygomatic implant. The abutment is generally a portion of an implant component (e.g., a dental implant) exposed to the outside of the mucosa, and provides support, retention, and stabilization to the artificial tooth of its upper structure. The abutment and the zygomatic implant may be connected generally by an implant neck 3. Wherein, the base station can be a composite base station in the prior art.

The zygomatic bone implant leaves the factory and is independently packaged in three layers, and the innermost layer is packaged by a sterile titanium tube; the second layer of package is a sterile plastic package, and the outer package is a plastic package paper box. Clinically, according to the specific conditions of patients, the implant with the proper length is selected, and after the implantation pit is prepared, the implant is implanted. The clinical specific use of the zygomatic bone implant of the application is as follows:

1. according to the cheekbone planting process, anesthetizing, turning over a valve, windowing a maxillary sinus, classifying according to preoperative design and ZAGA anatomy, completing fixed point, positioning and three-dimensional direction determination, completing hole preparation by using a cheekbone planting reamer, washing bone chips and soft tissue fragments in a pore canal, and the like;

2. zygomatic implant implantation: (1) Accurately measuring the depth of an implant pore channel by using a cheekbone implant depth measuring ruler, and selecting a cheekbone implant with a proper length; (2) Confirming the length of the implant, opening the external package of the zygomatic bone implant, taking out and carefully opening the sterile plastic package, and carefully pouring the zygomatic bone-penetrating implant with the sterile inner-layer package on a sterile operating table to avoid contact with the sterile inner package and falling pollution of the inner-layer package; (3) Fully exposing the operation area in the mouth, stabilizing the opening position of a patient, holding an implant carrier by an operator, removing the aseptic titanium tube package, carefully screwing the cheekbone implant into the cheekbone and maxillary base positioning hole through the finger of the maxillary sinus area from the implant site, completely implanting the cheekbone implant by using a manual implantation wrench, and adjusting the inner hexagonal plane to be consistent with the buccal surface; the oral cavity is exposed to heal by installing a sealing screw or installing a composite abutment and a healing cap, and the oral cavity can be repaired by matching with other implants under the condition of better initial stability; (4) attention is paid to: when the implant is implanted, if the implanted part of the screw thread of the implant is less than 1/3 of the bone, namely the torque is larger, the implant is recommended to be withdrawn from the sterile titanium sleeve, and the implant can be implanted again after a near-one preparation is made according to the bone condition; the implantation torque is controlled to be about 55Ncm, and excessive torque implantation is not recommended.

3. And finishing other work flows of planting, sewing and the like according to the zygomatic planting flow.

In summary, the zygomatic bone implant and the implant assembly provided by the embodiments of the present application have the following advantages:

1. the cone part 11 is in a conical design, the thread section for implanting cheekbone comprises a two-section thread design, the large-pitch self-tapping thread design is convenient for self-tapping implantation, bone damage during implantation is reduced, and good initial stability is obtained. The horizontal thread part facilitates the formation of osseointegration.

2. Through being equipped with depressed area 21 at the surface of implant transition portion 2, because implant transition portion 2 sets up at the cheekbone position, through the cooperation of depressed area 21, just can not make face very high, the face can seem more natural pleasing to the eye after the cheekbone implant is planted.

3. The third thread area 31 is provided at the end of the implant neck 3 near the transition part 2 of the implant, so that it is suitable for a patient with a thin alveolar bone and can be fixed on the zygomatic bone through the third thread area 31.

4. The smooth surface of the implant transition part 2 avoids the irritative trauma of the maxillary sinus membrane, protects the integrity thereof, and can effectively avoid various biological complications.

In conclusion, the present application effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.

Claims (10)

1. The cheekbone implant is characterized by comprising an implant head (1), an implant transition part (2) and an implant neck (3) which are connected in sequence, wherein the implant head (1) comprises a cone part (11) and a cylinder part (12) which are adjacent, and the cone part (11) comprises a first threaded area (111); the cylindrical portion (12) comprises a second threaded zone (121); the surface of implant transition portion (2) is equipped with depressed area (21), implant neck (3) are including third screw thread district (31) and smooth platform district (32), third screw thread district (31) with implant transition portion (2) are connected.

2. The zygomatic implant according to claim 1, wherein the outer diameter of the conical body (11) gradually increases from the end far from the cylindrical body (12) to the end near the cylindrical body (12);

and/or the diameter of the cylindrical part (12) is equal from one end far away from the implant transition part (2) to one end close to the implant transition part (2);

and/or a tip (13) is arranged at one end of the conical part (11) far away from the cylindrical part (12);

and/or the cone part (11) is provided with a chip groove (14); the extending direction of the chip grooves (14) extends from one end far away from the cylinder part (12) to one end close to the cylinder part (12).

3. The zygomatic implant of claim 1, wherein the first threaded region (111) comprises a self-tapping threaded section (1111), with an internally-disposed thread (1112) being provided between each adjacent thread of the self-tapping threaded section (1111).

4. The zygomatic implant according to claim 3, wherein the angle between the working face of each thread in the self-tapping thread segment (1111) and its radial direction along the cone portion (11) is α,5 ° α 30 °;

and/or the included angle between the working surface of each thread in the built-in threads (1112) and the radial direction of the conical body part (11) is beta, and is more than or equal to 5 degrees and less than or equal to 30 degrees;

and/or the thread extension direction of the built-in thread (1112) coincides with the thread extension direction of the self-tapping thread section (1111);

and/or the thread depth of the self-tapping thread section (1111) is greater than the thread depth of the built-in thread (1112);

and/or the thread thickness of the self-tapping thread section (1111) is greater than the thread thickness of the built-in thread (1112);

and/or the thread pitch of the self-tapping thread segments (1111) is equal;

and/or the thread pitch between adjacent built-in threads (1112) is equal.

5. The zygomatic bone implant according to claim 3, wherein the self-tapping thread section (1111) comprises a single-thread self-tapping thread section (11111) and a double-thread self-tapping thread section (11112); the two-wire self-tapping thread section (11112) is connected to the second threaded region (121);

and/or the internal thread (1112) is a double-start thread.

6. The zygomatic bone implant according to claim 5, wherein the thread thickness of the single self-tapping thread segment (11111) is smaller than the thread thickness of the double self-tapping thread segment (11112);

and/or the thread thickness of the single-thread self-tapping thread section (11111) is smaller than the thread thickness of the double-thread self-tapping thread section (11112);

and/or the length ratio of the single-thread self-tapping thread section (11111) to the double-thread self-tapping thread section (11112) is 1:1 to 1:2.

7. the zygomatic implant according to claim 1, wherein the second threaded region (121) comprises a horizontal threaded section.

8. The zygomatic implant according to claim 3, wherein the thread depth of the self-tapping thread section (1111) is greater than the thread depth of the second threaded zone (121);

and/or the thread thickness of the self-tapping thread section (1111) is greater than the thread thickness of the second thread region (121);

and/or the pitch of the self-tapping thread section (1111) is greater than the pitch of the second thread region (121).

9. The zygomatic implant according to claim 1, wherein the outer surface of the implant transition (2) is a smooth surface;

and/or the included angle between the working surface of the thread in the third thread zone (31) and the radial direction of the implant neck (3) is 5-20 degrees;

and/or the sunken depth d of the sunken area (21) is 1-3 mm;

and/or the length L0 of the depression area (21) is 15-40 mm;

and/or the width W of the depressed area (21) is 3-5 mm;

and/or the distance L2 between one end of the depressed area (21) close to the head part (1) of the implant and one end of the head part (1) of the implant close to the transition part (2) of the implant is 3-8 mm;

and/or the distance L1 between one end of the depressed area (21) close to the neck part (3) of the implant and one end of the neck part (3) of the implant close to the transition part (2) of the implant is 3-8 mm;

and/or the ratio of the length of the third threaded zone (31) to the length of the smooth land zone (32) is 2-5: 2 to 4;

and/or the length ratio of the implant head (1) to the implant neck (3) is 6:1 to 3:1;

and/or; the length of the implant transition part (2) is 10-45 mm:

and/or; the length of the third threaded zone (31) is 2-5 mm;

and/or; the pitch of the third threaded zone (31) is 0.3-0.5 mm;

and/or; the thread depth of the third thread area (31) is 0.3-0.5 mm;

and/or; the thickness of the thread of the third thread area (31) is 0.3-0.5 mm;

and/or; the outer diameters of the implant transition part (2) and the implant neck part (3) are both 4.0-5 mm;

and/or the zygomatic bone implant is made of five-grade titanium.

10. An implant assembly, characterized in that it comprises a zygomatic implant according to any of claims 1 to 9, and further comprises an abutment connected to said zygomatic implant.

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