CN212466218U

CN212466218U - Titanium support for dental implant bone increment

Info

Publication number: CN212466218U
Application number: CN202020998288.7U
Authority: CN
Inventors: 杨帆; 赵文妍; 王林红; 张文涛; 陈建萍
Original assignee: Zhejiang Provincial Peoples Hospital
Current assignee: Zhejiang Provincial Peoples Hospital
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-05
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to a titanium support that is used for tooth to plant bone augmentation, including being used for moulding inside network structure, being used for fixed peripheral frame and in order to completely cut off the protective film that granulation tissue grows into, peripheral frame closely laminates with the jaw surface of waiting to restore, peripheral frame with wait to restore jaw fixed connection. The utility model discloses compare with the protective screen membrane commonly used in the guide Bone Regeneration technique (Guided Bone Regeneration, GBR), Bone increase titanium support not only matches with jaw surface accuracy, good edge closure has, and can shorten the time that the titanium net was bent in advance and was made, can create and maintain good Bone reconstruction space simultaneously, and this titanium support is satisfying under the condition of moulding effect moreover, with inner structure meshing, the effectual whole volume that has reduced, the risk that the support exposes has been reduced, improve the operation success rate.

Description

Titanium support for dental implant bone increment

Technical Field

The utility model relates to a jaw bone volume seriously not enough's bone guide regeneration technology's protective screen membrane field when being applied to tooth and planting, concretely relates to a titanium support that is used for tooth to plant bone increment.

Background

The serious deficiency of the jaw bone is very common in clinic, and the repair of the serious deficiency of the jaw bone caused by congenital dysplasia or malformation of bones and the reasons of tumor, inflammation, trauma and the like is still one of the serious challenges faced by the doctors in oral and maxillofacial surgery, oral implant department and periodontal department. Clinical practice for many years proves that Guided Bone Regeneration (GBR) is an effective bone augmentation method. GBR is characterized in that after various bone filling materials are implanted into a bone defect area, a layer of barrier membrane is simultaneously utilized to prevent soft tissue from collapsing, provide a stable bone reconstruction space for the bone defect area, prevent non-osteoblasts such as fibroblasts and epithelial cells in the soft tissue from growing into the bone implant area, and finally realize bone repair of the defect area, so that the bone quantity of alveolar bone is increased. The selection and use of barrier membranes is one of the keys to the success of GBR.

An ideal barrier membrane should not only have good biocompatibility, create and maintain a stable bone remodeling space, but also have good edge sealing and perm-selective action, tissue integration ability, and ease of clinical management. Barrier membranes currently in clinical use fall into two broad categories, absorbable and non-absorbable membranes. The absorbable membrane is mainly a collagen membrane, and the non-absorbable membrane comprises a titanium mesh, a Polytetrafluoroethylene (PTFE) membrane, a non-absorbable titanium reinforced PTFE (PTFE-TR) membrane and the like, which have advantages and disadvantages. The absorbable collagen membrane is the most common barrier membrane in clinic at present, has good biocompatibility, but has no forming capability, is difficult to maintain the stability of a bone defect space, and is easy to collapse. And the collagen film is degraded in 4-6 weeks mostly, the degradation time and degree are unpredictable, the healing time of the vertical GBR is 6-9 months, the mechanical strength of the collagen film is lost due to premature absorption of the collagen film, the collagen film is easy to collapse, the capability of maintaining a bone forming space is lost, fibrous tissues are grown inwards, and therefore bone regeneration in an operative area is interfered, and the use of the collagen film in the severe jaw defect GBR is limited due to the problems. Compared with a collagen membrane, the titanium mesh has stronger mechanical strength, can guide and control the contour and the shape of regenerated bones, and keeps relatively stable space. At present, the titanium mesh commonly used in clinic is mostly a finished product small titanium mesh and a large titanium mesh needing to be cut, the clinical operation is complex, the shaping is difficult, the shape and the size cannot be completely matched with the space form required by reconstruction of a defective area bone, the edge sealing performance is poor, the mucosa irritation is easily caused by the rigidity change of the material and the sharp edge caused by contour trimming, the exposure risk is higher, the cutting and pre-bending forming are needed in the operation process, the operation time is prolonged, the ideal effect is still difficultly achieved after the fixation of the membrane nail due to the edge sealing performance, the stability of the bone graft is influenced, and the predictability of guiding the bone regeneration is further reduced. Therefore, there is an urgent need to find a suitable barrier membrane to improve the clinical application limitation of the existing barrier membrane to meet the clinical requirement of the severe bone defect GBR. In recent years, personalized barrier membranes based on 3D printing technology have become one of the new research hotspots in the field of severe bone defect repair.

How to construct a 3D printing personalized titanium bracket which is precisely matched with a bone defect reconstruction three-dimensional shape and boundary and has a high surface finish degree becomes one of important research subjects which need to be solved and broken through urgently by a bone reconstruction barrier film.

Disclosure of Invention

In view of the above, the present invention provides a titanium stent for dental implant bone augmentation to solve the above problems.

In order to realize above mesh, the utility model discloses a such a titanium support that is used for tooth to plant bone augmentation, including being used for moulding inside network structure, being used for fixed peripheral frame and in order to completely cut off the protective film that granulation tissue grows into, peripheral frame closely laminates with the jaw surface of waiting to restore, peripheral frame with wait to restore jaw fixed connection.

The utility model discloses further set up: the peripheral frame comprises an inner edge line and an outer edge line, and the inner net structure is located in a curved surface formed by the inner edge line in a surrounding mode.

The utility model discloses further set up: the inner net structure is woven by the cylindrical tube and is in an envelope shape, and the lower surface of the inner net structure is higher than the outer surface of a jaw bone.

The utility model discloses further set up: the internal reticular structure and the peripheral frame are integrally formed and are made of titanium alloy materials.

The utility model discloses further set up: the protective film includes interior protective film and outer protective film, interior protective film sets up the inboard of peripheral frame, outer protective film sets up the outside of peripheral frame, the aperture of homodisperse is arranged on interior protective film surface.

The utility model discloses further set up: peripheral frame includes first installation department and second installation department, be provided with first connecting portion and second connecting portion between first installation department and the second installation department, the fixed orifices has been seted up on the first connection position, first installation department, second installation department, first connecting portion and second connecting portion integrated into one piece, first installation department and second installation department span and treat to restore jaw setting.

The utility model discloses further set up: the protective film is a polytetrafluoroethylene film.

The utility model has the advantages that: the utility model discloses when using, with the defective region of whole bone increment titanium support cladding jaw, let peripheral frame with wait to restore jaw and laminate completely, then use the titanium nail to pass the fixed orifices on the support with bone increment titanium support with wait to restore jaw and fix together, wherein inside network structure comprises the crisscross cylinder pipe of evenly arranging, plays the effect in the space of rebuilding of establishing and maintaining good bone, the distribution of peripheral frame lower edge has the fixed orifices, peripheral frame closely laminates with waiting to restore jaw surface. Compared with the barrier membrane commonly used in the guided bone regeneration technology (GBR), the bone augmentation titanium bracket not only is accurately matched with the surface of a jaw bone, has good edge closure, but also can shorten the time for pre-bending a titanium mesh, and can create and maintain a good bone reconstruction space.

Drawings

Fig. 1 is a schematic view of a jaw bone model of a severe bone defect.

Fig. 2 is a schematic view of a complete jaw bone model after restoration.

Fig. 3 is a schematic view of an outer frame structure according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of the latticed staggered curve inside the peripheral frame according to the present invention.

Fig. 5 is a schematic view of the complete bone mass titanium stent of the present invention.

Fig. 6 is a schematic view of the bone incremental titanium stent of the present invention for treating severe bone defect of jaw bone.

Reference numerals: 10. a defect region; 20. a curved surface; 1. an internal network structure; 11. a cylindrical tube; 2. a peripheral frame; 2a, inner edge lines; 2b, outer edge lines; 21. a first mounting portion; 21a, a spanning part; 22. a second mounting portion; 22a, a spanning part; 23. a first connection portion; 231. a fixing hole; 24. a second connecting portion; 3. a protective film;

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1: fig. 1 is a schematic view of a jaw bone model with severe bone defects, and a defective area 10 is present on the jaw bone, and the object of the present invention is to repair the defective area 10, which is shown in fig. 2 after the repair.

In order to solve the problem, the utility model provides a titanium support for tooth implantation bone increment, including being used for moulding inside network structure 1, being used for fixed peripheral frame 2 and growing into protective film 3 for isolated granulation tissue, peripheral frame 2 closely laminates with the jaw surface of waiting to restore, peripheral frame 2 with wait to restore jaw fixed connection, as shown in fig. 5.

As shown in fig. 3, which is a schematic view of a single peripheral frame 2, the peripheral frame 2 includes an inner edge line 2a and an outer edge line 2b, the inner mesh structure 1 is located in the curved surface 20 formed by the inner edge line 2a, the position of the inner edge line 2a of the frame of the peripheral frame 2 is approximately consistent with the boundary of the defect region 10, and the position of the outer edge line 2b is located at the position corresponding to the adjacent bone surface of the defect region 10.

The shape of peripheral frame 2 matches the shape of waiting to restore the jaw, promptly peripheral frame 2 includes first installation department 21 and second installation department 22, be provided with first connecting portion 23 and second connecting portion 24 between first installation department 21 and the second installation department 22, fixed orifices 231 has been seted up on first connecting portion 23 position, first installation department 21, second installation department 22, first connecting portion 23 and second connecting portion 24 integrated into one piece, first installation department 21 and second installation department 22 span the setting of waiting to restore the jaw, first installation department 21 upwards extends to the up end of jaw from waiting to restore the jaw and forms one and

span portion

22a, 21a, then continues to extend to suitable position downwards along the inside surface of jaw, second installation department 22 is the same reason, wherein first connecting portion 23 is located the outside of jaw, second connecting portion 24 is located the inside of jaw, the positions of the two parts can be interchanged, but for convenience of installation, a fixing hole 231 is arranged on the connecting part at the outer side of the jaw bone, and then the connecting part is fixed through a screw, and the screw material is also made of titanium alloy.

As shown in fig. 4, the internal mesh structure is woven by a cylindrical tube 11 to form an envelope shape, and the lower surface of the internal mesh structure 1 is higher than the outer surface of the jaw bone. The internal reticular structure 1 and the peripheral frame are integrally formed and are made of titanium alloy materials.

As shown in fig. 5, the protective film 3 includes an inner protective film and an outer protective film, the inner protective film is disposed on the inner side of the peripheral frame 2, the outer protective film is disposed on the outer side of the peripheral frame 2, the protective film 3 in this embodiment is a ptfe film, the ptfe film includes an inner layer and an outer layer, wherein uniformly dispersed pores (not shown) are distributed on the film attached to the inner surface of the titanium support, the upper and lower layers completely cover the titanium support, and the edge is closed.

The utility model discloses as shown in fig. 6 when using, with the defective region 10 of whole bone increment titanium support cladding jaw, let peripheral frame 2 with wait to restore jaw and laminate completely, then use the titanium nail to pass fixed orifices 231 on the support with bone increment titanium support with wait to restore jaw and fix together, wherein inside network structure 1 comprises the crisscross cylinder pipe 11 of evenly arranging, plays the effect in the space of rebuilding of establishing and maintaining good bone, 2 lower edge distributions of peripheral frame have fixed orifices 231, peripheral frame 2 closely laminates with waiting to restore jaw surface. Compared with the barrier membrane commonly used in the bone guided regeneration technology (GBR), the bone augmentation titanium bracket not only is accurately matched with the surface of a jaw bone, has good edge closure, but also can shorten the time for pre-bending a titanium mesh, and can create and maintain a good bone reconstruction space.

In addition, in the description of the embodiments of the present invention, 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 invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A titanium stent for dental implant bone augmentation characterized by: including being used for plastic inside network structure, being used for fixed peripheral frame and in order to keep apart the protective film that granulation tissue ingresses, peripheral frame closely laminates with the jaw surface that waits to restore, peripheral frame and jaw fixed connection that waits to restore.

2. A titanium stent for dental implant bone augmentation as claimed in claim 1, wherein: the peripheral frame comprises an inner edge line and an outer edge line, and the inner net structure is located in a curved surface formed by the inner edge line in a surrounding mode.

3. A titanium stent for dental implant bone augmentation according to claim 1 or 2, wherein: the inner net structure is woven by the cylindrical tube and is in an envelope shape, and the lower surface of the inner net structure is higher than the outer surface of a jaw bone.

4. A titanium stent for dental implant bone augmentation as claimed in claim 3, wherein: the internal reticular structure and the peripheral frame are integrally formed and are made of titanium alloy materials.

5. A titanium stent for dental implant bone augmentation as claimed in claim 4, wherein: the protective film includes interior protective film and outer protective film, interior protective film sets up the inboard of peripheral frame, outer protective film sets up the outside of peripheral frame, the aperture of homodisperse is arranged on interior protective film surface.

6. A titanium stent for dental implant bone augmentation as claimed in claim 5, wherein: peripheral frame includes first installation department and second installation department, be provided with first connecting portion and second connecting portion between first installation department and the second installation department, the fixed orifices has been seted up on the first connection position, first installation department, second installation department, first connecting portion and second connecting portion integrated into one piece, first installation department and second installation department span and treat to restore jaw setting.

7. A titanium stent for dental implant bone augmentation as claimed in claim 1, wherein: the protective film is a polytetrafluoroethylene film.