CN112716628A - Implanting device and method for maxillary sinus implantation - Google Patents
Implanting device and method for maxillary sinus implantation Download PDFInfo
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- CN112716628A CN112716628A CN202011592375.3A CN202011592375A CN112716628A CN 112716628 A CN112716628 A CN 112716628A CN 202011592375 A CN202011592375 A CN 202011592375A CN 112716628 A CN112716628 A CN 112716628A
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- 210000004086 maxillary sinus Anatomy 0.000 title claims abstract description 84
- 238000002513 implantation Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000007943 implant Substances 0.000 claims abstract description 76
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 63
- 230000008569 process Effects 0.000 claims abstract description 5
- 238000010883 osseointegration Methods 0.000 claims description 7
- 210000000963 osteoblast Anatomy 0.000 claims description 6
- 210000003128 head Anatomy 0.000 claims description 5
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 6
- 230000003416 augmentation Effects 0.000 description 5
- 230000001054 cortical effect Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 5
- 210000004877 mucosa Anatomy 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 208000003322 Coinfection Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010003694 Atrophy Diseases 0.000 description 1
- 208000037408 Device failure Diseases 0.000 description 1
- 238000012404 In vitro experiment Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000735 allogeneic effect Effects 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 229940036811 bone meal Drugs 0.000 description 1
- 239000002374 bone meal Substances 0.000 description 1
- 239000000316 bone substitute Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000004053 dental implant Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000003692 ilium Anatomy 0.000 description 1
- 230000005847 immunogenicity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
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- 229920000642 polymer Polymers 0.000 description 1
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- 238000002054 transplantation Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
- A61C8/0025—Self-screwing with multiple threads
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/0077—Connecting the upper structure to the implant, e.g. bridging bars with shape following the gingival surface or the bone surface
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0089—Implanting tools or instruments
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention discloses an implanting device and method for maxillary sinus implantation, which comprises an implant, a positioner and a fastening nut, wherein the top of the implant is in a shape of a cylinder head with an inverted arc angle, the bottom of the implant is in a shape of a taper angle with Morse taper, and the implant is fixedly connected with the upper part of the positioner through the taper angle at the bottom; the shape of the fastening nut comprises an I shape, the middle shape of the I shape comprises a square, and the lower part of the positioner is connected with the fastening nut. The method comprises the following steps: after preparing a hole in the maxillary sinus bone, implanting the implant into the maxillary sinus bone; windowing the side wall of the maxillary sinus, and placing the positioner into the maxillary sinus; the fastening nut is placed in the maxillary sinus, so that the implant, the positioner and the fastening nut are assembled and connected into a whole, and the whole implantation process is completed. The invention provides an implanting device and method for maxillary sinus implantation, which have the advantages of high stability, treatment period reduction, pain relief and lower cost.
Description
Technical Field
The invention relates to the technical field of dental implantation, in particular to an implantation device and an implantation method for maxillary sinus implantation.
Background
In the conventional maxillary sinus lifting operation, a maxillary sinus mucosa is lifted after being peeled off from a sinus floor, and a bone graft material is implanted between the sinus floor mucosa and a sinus floor bone. Thus, the height of the bone can be effectively increased, and the implant can be implanted on the basis of the height, so that the implant can obtain enough height and initial stability.
The invention adopts the maxillary sinus external lifting operation, windows the maxillary sinus side wall, peels off the maxillary sinus floor mucosa and pushes upwards and inwards, and an implant and a positioner are arranged between the maxillary sinus floor mucosa and the maxillary sinus floor. And then the implant is implanted by adopting the maxillary sinus internal lifting operation, and the implant, the positioner and the dental implant fastening screw cap are assembled into a whole, so that the implant can be effectively prevented from being poor in bone quality due to insufficient bone mass in a mechanical mode, and the final repair scheme is not carried out under the condition of poor oral cavity conditions such as initial stability.
The Chinese patent application numbers are: 201210415771.8, application date is 10/26/2012 and publication date is: year 2013, month 02, day 06, with patent names: the invention discloses a maxillary sinus floor lifting device and a maxillary sinus floor lifting method, and the maxillary sinus floor lifting device comprises a screw and a base, wherein the base is of a hollow columnar structure, the outer surface of the base is provided with a self-tapping thread and a first stress mechanism, the self-tapping thread and the first stress mechanism are separated by a retaining ring, and the inner surface of the base is provided with an inner surface thread with the direction consistent with the self-tapping thread; the screw is of a columnar structure, the surface of the screw is provided with screw threads matched with the threads on the inner surface and a second stress mechanism, and the bottom of the screw is provided with a stress application disc; the base and the screw rod are combined and fixed in the planting nest, and the screw rod penetrates through the base to apply lifting force to the maxillary sinus floor, so that the maxillary sinus floor is lifted to a preset height. The invention can slowly and accurately control the lifting of the maxillary sinus floor, avoids discomfort caused by hammering, is more preferable, does not need to adopt auxiliary tools or means to fix the base, and has little lifting effect on the height of the maxillary sinus region bone.
The above patent documents disclose a maxillary sinus floor lifting device and method, but the present invention has weak stability, a maxillary sinus floor lifting method is complicated, a recovery period is long, and consumer demands cannot be satisfied.
Disclosure of Invention
The main purpose of the invention is to provide an implantation device and method for maxillary sinus implantation, which has high stability, reduced treatment period, reduced pain and lower cost.
In order to achieve the first object of the invention, the invention provides an implanting device for implanting maxillary sinus, which comprises an implant, a positioner and a fastening nut, wherein the top of the implant is shaped like a cylinder head with a rounded arc angle, the bottom of the implant is shaped like a taper angle with Morse taper, and the implant is fixedly connected with the upper part of the positioner through the taper angle of the bottom; the shape of the fastening nut comprises an I shape, the middle shape of the I shape comprises a square, and the lower part of the positioner is connected with the fastening nut.
The two sides of the positioner are respectively provided with a groove.
The arc angle of the cylindrical head at the top of the implant is 45-135 degrees.
In order to achieve the second object of the present invention, the present invention provides an implanting method for maxillary sinus implantation, comprising the steps of:
providing the planting device for implanting the maxillary sinus, and implanting an implant into a maxillary sinus bone through a special tool after preparing a hole in the maxillary sinus bone through a maxillary sinus internal lifting operation;
performing maxillary sinus external lifting operation, windowing the side wall of a maxillary sinus, and placing a positioner into the maxillary sinus, wherein the positioner is connected with the implant;
after windowing at the maxillary sinus lateral wall, put into the maxillary sinus through specialized tool with fastening nut, this fastening nut with the locator is connected, makes planting body, locator and fastening nut assembly connection in an organic whole, accomplishes whole implantation process.
The two sides of the positioner are respectively provided with a groove.
The groove of the positioner can be attached by osteoblasts after implantation to form osseointegration and prevent axial loosening.
The post-implantation fastening nut may be attached by osteoblasts, forming an osseointegration preventing axial loosening.
The technical scheme provided by the invention has the beneficial effects that 1) the traditional implant is successfully implanted by depending on a certain bone quantity to form a certain initial stability by combining with the implant, the bone quantity and the initial stability are not required to be considered, the effective connection between the inside of the maxillary sinus and the implant is realized by completely depending on a mechanical structure, and the mechanical stability formed by the mechanical structure is far greater than the initial stability required by the initial stage of the implant; 2) the invention does not need bone augmentation surgery, does not use bone grafting materials, also has the advantages of simplifying surgery operation, shortening treatment period, reducing trauma and pain, saving treatment cost, reducing complications and failure rate and the like, and is favored by doctors and patients; 3) the invention does not need bone augmentation surgery, thus saving the economic cost of both doctors and patients; 4) the implant is integrally designed in a conical shape, can provide gradual bone extrusion and bone expansion capacity, and the knife-shaped thread has strong self-tapping property when being implanted. Under the condition of loose bone, bone extrusion and bone dilatation operations are not needed, secondary infection is reduced, operation time is shortened, and the medical cost of patients is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view illustrating an implanting device for maxillary sinus implantation according to an embodiment of the present invention.
The reference numbers illustrate:
1. an implant; 11. a cylindrical head at the top of the implant; 12. a taper angle; 2. a positioner; 21. a first groove; 2. a second groove; 3. fastening a nut;
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an implantation device for maxillary sinus implantation.
Referring to fig. 1, in one embodiment of the present invention, the implant device for maxillary sinus implantation comprises an implant 1, a positioner 2 and a fastening nut 3, wherein the implant 1 has a top shape comprising a cylindrical head 11 with a rounded arc angle and a bottom shape comprising a taper angle 12 with morse taper, and the implant 1 is fixedly connected with the upper part of the positioner 2 through the taper angle 12 at the bottom; the shape of the fastening nut 3 comprises an I shape, the middle shape of the I shape comprises a square, and the lower part of the positioner 2 is connected with the fastening nut 3.
In this embodiment, it is preferable that the lower portion of the retainer 2 and the i-shaped middle shape of the fastening nut 3 include a square connection.
In this embodiment, it is preferable that both sides of the locator 2 include a first groove 21 and a second groove 22, respectively.
In this embodiment, preferably, the arc angle of the top cylindrical head 11 of the implant 1 is 45 ° to 135 °.
In the embodiment, the top of the implant 1 is a cylinder 11 with an inverted arc angle, and when the maxillary sinus is lifted, the implant can be directly contacted with a maxillary sinus membrane for lifting, so that the maxillary sinus membrane cannot be damaged, and the risk of perforation of the maxillary sinus is avoided;
in this embodiment, the taper angle 12 at the bottom of the implant 1 is a hexagonal structure with morse taper, and can form a tight connection with the positioner 2, and is not easy to loosen; the outside adopts morse's tapering structure in the design, and the toper is connected can produce mechanical lock binding power, produces the auto-lock cooperation with the locator 2 of the same tapering and reaches the effect of cold welding, and effectual not hard up phenomenon that prevents disperses the stress, ensures to implant long-term stable behind the human body.
The locator 2 and the fastening nut 3 can be understood as a neck micro-thread design structure, the neck micro-thread design structure can increase the contact surface area of the implant 1 and bone tissues, and is beneficial to improving the bone bonding strength of the implant 1;
the neck designed micro thread not only increases the cutting and self-tapping functions of the thread during implantation, but also increases the stability of the thread at the initial stage of implantation by the mechanical self-locking function, increases the contact area of the implant and bone tissues in a stress concentration area, namely the cortical bone edge, furthest retains the neck bone tissues of the implant, reduces unnecessary loss of the bone tissues, enhances the early retention of the cortical bone, and improves the success rate and the long-term effect of artificial tooth implantation;
researches have found that implant-bone union is influenced by a combination of various factors, and how to obtain stability of the implant at the initial stage of implantation is a key to ensure implant-bone union, in addition to material biocompatibility and patient's own factors.
In order to form good osseointegration between the implant 1 and the bone tissue, the implant should minimize damage to the bone during implantation and minimize stress and uniform distribution of the bone during occlusion, thereby avoiding local stress concentration. Previous studies have confirmed that the neck of the implant is the location of stress concentration, even if the maximum stress generated by loading is far below the strength limit of the bone, the fatigue damage of the bone can still be caused irrecoverably, and the implant loosening caused by cortical bone absorption at the neck of the implant is the main reason for the implant failure.
Therefore, the reduction of stress and the improvement of distribution of the implant 1 and the cortical bone in the contact area contribute to the improvement of the long-term stability and the implant success rate of the implant 1.
The existing in-vitro experiment proves that the bottom taper angle 12 of the implant 1 can generate lateral pressure on the surrounding bone tissues when being implanted, the implant thread is more closely attached to the bone tissues, the implantation torque is higher, and the initial stability is favorably improved; the double-thread screw thread that thickness increases, the expanded main part of toper, the recess of reverse cutting makes it through less implantation route, through vertical to and level to the bone extrusion step by step, makes also can provide very high initial stability under the not good condition of bone condition, reduces jaw damage, furthest remains the skeleton. Meanwhile, the implant has a platform transfer function, the contact surface between the biological width and the prosthesis is increased, the atrophy of soft tissues is prevented, the amount of the soft tissues is increased, the blood vessel forming capability of the underlying cortical bone can be improved, and the hard tissues can be stored.
The invention also provides an implantation method for implanting the maxillary sinus.
The planting method for implanting the maxillary sinus comprises the following steps:
providing the implanting device for implanting the maxillary sinus, and implanting the implant 1 into the maxillary sinus bone through a special tool after preparing a hole in the maxillary sinus bone through a maxillary sinus lifting operation;
a window is opened on the side wall of the maxillary sinus through a maxillary sinus external lifting operation, a locator 2 is put into the maxillary sinus, and the locator 2 is connected with the implant 1;
after windowing at the maxillary sinus lateral wall, put into the maxillary sinus through specialized tool with fastening nut, this fastening nut 3 with locator 2 connects, makes three implants assembly connection such as implant 1, locator 2 and fastening nut 3 integrative, accomplishes whole implantation process.
The planting method for implanting the maxillary sinus comprises the steps of windowing the side wall of the maxillary sinus through a maxillary sinus external lifting operation, placing a positioner 2 into the maxillary sinus and connecting the positioner with an implant 1; the bottom of the implant 1 adopts a Morse taper structure, the taper connection can generate mechanical locking force, the self-locking matching is generated with the implant 1 with the same taper to achieve the effect of cold welding, the loosening phenomenon is effectively prevented, the stress is dispersed, and the long-term stability after the implant is implanted into a human body is ensured.
After windowing on the lateral wall of the maxillary sinus, the fastening screw cap 3 is placed into the maxillary sinus through a special tool, and is precisely connected with the positioner 2 through connecting threads, so that the implant 1, the positioner 2, the fastening screw cap 3 and other three implants are assembled and connected into a whole, and the whole implantation process is completed.
After being implanted, the first groove 21 and the second groove 22 of the positioner 2 can be attached by osteoblasts to form osseointegration and prevent axial loosening; after being implanted, the fastening screw cap 3 can be attached by osteoblasts, and as the fastening screw cap 3 is I-shaped and has a square structure in the middle, the fastening screw cap is matched with a special tool for operation and then is tightly connected by bone combination; after the middle square structure forms osseointegration, not only can the axial looseness be prevented, but also the axial rotation can be prevented.
The traditional implant is successfully implanted by depending on a certain bone mass to form a certain initial stability by combining with the implant, the invention does not need to consider the bone mass and the initial stability, realizes the effective connection between the inside of the maxillary sinus and the implant by completely depending on a mechanical structure, and the mechanical stability formed by the mechanical structure is far greater than the initial stability required by the initial stage of the implant;
under certain conditions, the bone incremental surgery is not needed, and bone grafting materials are not used, so that the invention has the advantages of simplifying surgical operation, shortening treatment period, reducing trauma and pain, saving treatment cost, reducing complication and failure rate and the like, and is favored by doctors and patients;
before traditional bone augmentation surgery, bone extraction is needed, but about 8% of patients have complications such as infection, blood loss, local skin numbness, short-term or even long-term pain and the like after ilium extraction surgery, so scholars are continuously seeking a transplantation material capable of replacing autologous bone. Allogenic bone, xenogenic bone and later various ceramic materials and polymers are used as bone substitutes in maxillary sinus floor elevation. However, these materials have not been widely used in clinical practice because some of them are found to have immunogenicity and some of them lack osteoinductivity. Therefore, the maxillary sinus implantation does not need bone augmentation operation, which is very important.
The invention does not need bone increment operation under certain conditions, thereby saving the economic cost of doctors and patients.
Before traditional bone augmentation surgery, need get the bone, no matter get autologous bone or allogeneic bone meal, all can involve the extra expenditure of consumer, if use this patent structure, then can certain probability avoid the emergence of this type of problem.
The maxillary sinus implant is integrally designed in a cone shape, can provide gradual bone extrusion and bone expansion capacity, and has stronger self-tapping property when the knife-shaped thread is implanted. Under the condition of loose bone, bone extrusion and bone dilatation operations are not needed, secondary infection is reduced, operation time is shortened, and the medical cost of patients is reduced.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the present invention, and all changes and modifications that come within the meaning and range of equivalency of the specification and drawings are intended to be embraced therein.
Claims (7)
1. An implanting device for maxillary sinus implantation, characterized in that: the fixture comprises an implant, a positioner and a fastening nut, wherein the top of the implant is shaped like a cylinder head with a rounded arc angle, the bottom of the implant is shaped like a taper angle with Morse taper, and the implant is fixedly connected with the upper part of the positioner through the taper angle at the bottom; the shape of the fastening nut comprises an I shape, the middle shape of the I shape comprises a square, and the lower part of the positioner is connected with the fastening nut.
2. The implant device for maxillary sinus implantation of claim 1 wherein: the two sides of the positioner are respectively provided with a groove.
3. The implant device for maxillary sinus implantation of claim 1 or 2, wherein: the arc angle of the cylindrical head at the top of the implant is 45-135 degrees.
4. An implanting method for maxillary sinus implantation, characterized in that: the method comprises the following steps:
providing an implant device for maxillary sinus implantation according to claim 1 to claim 3, wherein the implant is implanted into the maxillary sinus bone by a special tool after the maxillary sinus bone is prepared with a hole by a maxillary sinus lifting operation;
performing maxillary sinus external lifting operation, windowing the side wall of a maxillary sinus, and placing a positioner into the maxillary sinus, wherein the positioner is connected with the implant;
after windowing at the maxillary sinus lateral wall, put into the maxillary sinus through specialized tool with fastening nut, this fastening nut with the locator is connected, makes planting body, locator and fastening nut assembly connection in an organic whole, accomplishes whole implantation process.
5. The implanting method for maxillary sinus implantation according to claim 4, wherein: the two sides of the positioner are respectively provided with a groove.
6. The implanting method for maxillary sinus implantation according to claim 5, wherein: the groove of the positioner can be attached by osteoblasts after implantation to form osseointegration and prevent axial loosening.
7. The implanting method for maxillary sinus implantation according to claim 4, wherein: the post-implantation fastening nut may be attached by osteoblasts, forming an osseointegration preventing axial loosening.
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