JP2004344321A - Denture fixing frame for dental implant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a denture fixing frame for dental implant easily forming a shape fitted to a patient by using a fixing base of the dental implant which, after an operation of implanting an implant fixture in an implant hole formed in the jaw bone of a missing tooth part, firmly connects and fixes the respective implant fixtures and enables a chewing function immediately or in an early stage. <P>SOLUTION: This denture fixing frame 6 for the dental implant comprises tongue side and cheek side plates X and Y installed in the both sides of a frame cylinder to be fixed to the inside of the oral cavity of the implant fixture folded conforming to the shape of the residual ridge of the patient; and plate connectors Z disposed between the both plates X and Y and in the both sides of a part where the frame cylinder is positioned, having their both ends adhered and fixed to the both plates X and Y, and holding the interval between the both plates X and Y at a prescribed interval. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a dental implant treatment for restoring a lost oral function of a missing tooth part, in which a denture for a dental implant is manufactured in a short time and attached to the oral cavity, thereby achieving early achievement of the lost oral function. The present invention relates to a dental implant fixing frame used for a dental implant fixing base to be designed.
[0002]
[Prior art]
Conventionally, as a dental prosthesis method for a missing tooth part, a method using a bridge and a method using a denture have been generally performed.
However, the bridge method cuts healthy natural teeth on both sides of the missing tooth to form an abutment, and fixes a dental prosthesis located at the missing tooth to a metal body engaged and fixed to the abutment. In order to form an abutment, not only must healthy natural teeth be cut, but also because the occlusal pressure is not directly applied to the dental prosthesis located at the missing teeth There is a disadvantage that bone resorption is caused at the site. The method using a denture is a method in which an artificial tooth is fixed to a denture base made of a synthetic resin or the like as a dental prosthesis. In this method, the occlusal force acting on the dental prosthesis is reduced by the base. Since the dental prosthesis is burdened by the remaining natural teeth and / or oral mucosa adjacent to the denture, the denture base may discomfort during use of the dental prosthesis or may cover taste receptors scattered in the oral mucosal tissue. This has the serious drawback that the taste may be dulled and that long-term use may cause resorption of the ridge.
[0003]
Then, as a treatment method to solve these disadvantages, it was discovered that titanium metal and bone were bonded, and the dental bone was inserted into the implant hole formed in the jawbone of the missing tooth on the premise of this "bone connection". The implant fixture made of titanium metal, which serves as a device for maintaining and stabilizing the dental prosthesis, is inserted to substitute for the function of the root in the natural tooth, and the abutment fixed to the inside of the oral cavity of the implant fixture is used to replace the dental prosthesis. A dental implant technique for fixing a fixing device to form a dental prosthesis holding device and fixing the dental prosthesis to the dental prosthesis fixing device has been developed and implemented.
[0004]
When a treatment method using such a dental implant is performed, the dental prosthesis can be fixed without covering the oral mucosa, and therefore, there is no uncomfortable feeling or dull taste when the dental prosthesis is attached, and natural tooth It has the advantage of being able to minimize the bone resorption expected when the implant fixture is not implanted because a suitable occlusal force is given to the jawbone because it gives a feeling of use similar to This treatment method has been rapidly developed and can be applied not only to single tooth loss, local loss of two or more teeth, but also to edentulous jaw (whole tooth loss).
[0005]
In this dental implant treatment, it is necessary that the implant fixture inserted in the insertion hole formed in the jaw bone of the missing tooth part is sufficiently bonded to the jaw bone of the missing tooth part, and osteointegration is obtained. It is important to rest after implant surgery. In other words, the injured bone tissue after the operation is maintained in a resting state, a normal bone healing process is ensured, and a transition to bone modeling is performed. On the surface of the char, a "bone bond" is achieved, in which the bone is bound via a layer of glycoprotein. For this reason, after the implant fixture placement operation, the gingiva is once returned so that no load is applied to the implant fixture, and the implant fixture is placed under the gingiva. The lower jaw, which has many dense bones, is about 4 months, and the upper jaw, which has many coarse bones, Provides a resting healing period of about 6 months, and after the osteointegration is obtained, the gingival part inside the oral cavity in which the implant fixture has been inserted is re-opened, and the dental prosthesis is placed on the inner oral part of the implant fixture. A two-time method of performing a reoperation for fixing an abutment, which is a mounting portion of a fixing device, is mainly adopted.
[0006]
However, this double procedure imposes a heavy burden on the patient by performing two operations on the patient. Therefore, the double procedure is called a single procedure, in which the abutment is attached when the implant fixture is inserted, or the abutment is used. A method of performing gingival penetration at the same time as implantation operation using a gingival penetrating implant fixture that includes the function of an abutment in which the abutment screw and the abutment screw are integrated with the implant fixture has been applied clinically. However, care must be taken to avoid this approach, as this increases the risk of loading the implant fixture before osseointegration is achieved.
[0007]
Both of the two-time and one-time implant treatments are methods in which a dental prosthesis is completed and a mastication function is provided after osteointegration with the implant fixture is obtained, and thus osteointegration is performed. Since the dental prosthesis cannot be mounted until after a certain healing period for acquisition, the burden on the patient for a long time as described above is imposed on the patient, and when a greater mastication force or an unexpectedly large external force is received, Since there is a risk of a biological reaction that the osseointegration is broken by the resorption of the bone around the implant, clinical studies such as the number of implant fixtures to be implanted, how to apply occlusal force, and connection and fixation of implant fixtures are performed. Is required.
[0008]
As described above, it is important to obtain a good osteointegration with the implant fixture, i.e., to avoid overloading the implant fixture and to prevent the implant fixture from shaking, in order to successfully perform the implant treatment based on the osteointegration. However, when the implant fixture is inserted into the insertion hole formed in the jawbone of the missing tooth, a certain degree of fixation between the implant fixture and the jawbone is obtained, and the subsequent load may be small. In recent years, it has been clinically confirmed that the mastication function can be achieved even during the osteointegration acquisition period if the fixed state can be maintained.As a result, the implant fixture is inserted into the implant hole formed in the jawbone of the missing tooth. Immediately or early after the implantation, a treatment method for wearing a dental prosthesis has been proposed, and this treatment method has a particularly dense bone and a hard bone material. In the mandible there is a easily adapted from that bone condition is good.
[0009]
Accordingly, the present applicant, after an operation in which the implant fixture as described above is inserted into the insertion hole formed in the jawbone of the missing tooth, firmly connects and fixes the implant fixtures and masticates immediately or early. A denture fixing base for a dental implant that can provide a function has been proposed (for example, see Patent Document 1).
[0010]
[Patent Document 1]
JP-A-2002-35013
[0011]
The fixation base of this dental implant denture has a shape substantially along the patient's ridge and corresponds to the position of the implant fixture to be inserted into the insertion hole formed in the jawbone of the missing tooth A metal frame for fixing a denture for an implant, which has two or more frame cylinder insertion holes sufficiently larger than the outer shape of the frame cylinder fixed inside the oral cavity of the implant fixture at the position where In this structure, the frame cylinder insertion hole of the metal frame for fixing the denture and the frame cylinder fixed inside the oral cavity of the implant fixture are firmly fixed with a hard resin.
[0012]
However, this metal frame for fixing dental prostheses for dental implants has a shape approximately along the patient's jaw ridge, and an implant fixation that will be inserted into an insertion hole formed in the jawbone of the missing tooth. Since two or more frame cylinder insertion holes are formed in advance at positions corresponding to the positions of the chars, the shape of the patient's ridge varies depending on the patient. In addition to the inability to conform to the shape, the position of the implant fixture to be implanted in the jawbone of the missing tooth part of the patient is limited, and the implant fixture is implanted in the hole formed in the jawbone of the missing tooth part. Various types of implant fixtures must be prepared according to the number of implant fixtures that will be If the frame cylinder fixed inside is not sufficiently larger than the outer shape, the frame cylinder fixed inside the oral cavity of the implant fixture may not be inserted, resulting in a large amount of hard resin used and uniform strength. There were drawbacks such as not becoming
[0013]
[Problems to be solved by the invention]
The present invention solves the drawbacks of the conventional metal frame for fixing a dental prosthesis for a dental implant used as a base for fixing a dental prosthesis for a dental implant as described above, and an implant having an implant fixture formed in the jawbone of a missing tooth. After implanted in the hole, the shape is adapted to the patient for use as a fixation base for dentures for dental implants, which enables the immediate and early mastication function by firmly connecting and fixing each implant fixture An object of the present invention is to provide a frame for fixing a denture for a dental implant, which can be easily formed.
[0014]
[Means for Solving the Problems]
Means for Solving the ProblemsThe present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, mounted an impression coping inside an oral cavity of an implant fixture implanted in an implantation hole formed in a jaw bone of a missing tooth portion and collected it. A frame cylinder fixed to the inside of the oral cavity of the implant fixture is attached to the abutment analog embedded in the plaster model formed based on the impression, and the lingual side and the buccal side are sandwiched between the frame cylinder on the plaster model A metal plate is bent along the shape of the patient's ridge, and a biomedical metal plate-like connector is placed between the lingual and buccal plates near the portion where the frame cylinder is located. If the both ends of the plate-shaped connector are arranged and adhered to both plates and the interval between both plates is maintained at a predetermined interval, the fixation base for the dental implant denture It had completed the present invention by investigating can be produced simply and easily dental implant denture fixation frame shape corresponding to a patient for use in.
[0015]
That is, the present invention provides a lingual-side and buccal-side metal plate for a living body, which is installed with a frame cylinder fixed to the inner side of the oral cavity of an implant fixture and is bent in accordance with the shape of a patient's ridge. A biological metal plate-shaped connector disposed between the two plates and near the portion where the frame cylinder is located, and both ends of which are adhesively fixed to the two plates to maintain a predetermined interval between the two plates; And a frame for fixing a denture for a dental implant.
[0016]
If the two plates are bent in advance according to the shape of a general human ridge, the work of bending according to the shape of the patient's ridge only needs to be adjusted to the shape of the patient's ridge. It is preferable because the fine adjustment is sufficient. If the two plates are composed of one plate connected at one end, the number of parts is reduced and the operability is improved. If the surface cylinder is roughened, or if both the front and back surfaces of the plate-shaped connector are roughened or provided with irregularities, the frame cylinder fixed to the inside of the oral cavity of the implant fixture is used for the dental implant according to the present invention. It was also determined that the adhesive strength with the hard resin fixed to the denture fixing frame and the resin for the denture base was improved and that it was preferable.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the denture fixing frame for a dental implant according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective explanatory view showing the shape of one embodiment of a lingual and buccal plate and a plate-like connector constituting a frame for fixing a denture for a dental implant according to the present invention, and FIG. 2 is a book shown in FIG. FIG. 3 is a perspective view showing a completed state of a frame for fixing a denture for a dental implant according to the present invention. FIG. 3 is another view of a lingual and buccal plate and a plate-like connector constituting a frame for fixing a denture for a dental implant according to the present invention. FIG. 4 is a perspective explanatory view showing the shape of the embodiment, and FIG. 4 shows a state in which a fixing base for a dental implant denture manufactured using the dental implant denture fixing frame according to the present invention shown in FIG. 1 is fixed to an implant fixture. FIG. 5 is an explanatory sectional view of another embodiment corresponding to FIG. 4, and FIG. 6 uses a gingival implant fixture having an abutment function. FIG. 7 is a cross-sectional view for explaining still another embodiment corresponding to FIG. 4, and FIG. 7 is a frame for fixing a denture for a dental implant according to the present invention used for a fixing base for a denture for a dental implant having the structure shown in FIG. It is sectional drawing for description which shows a manufacturing process.
[0018]
In the drawing, reference numeral 1 denotes a known implant fixture to be inserted into an insertion hole formed in the jaw bone of the missing tooth portion. In the embodiment shown in FIG. 4, a screw 1a is provided on the outer peripheral surface. The portion located inside the oral cavity is provided with a polygonal convex portion 1c such as a hexagonal shape into which the abutment 2 whose inner peripheral surface of the oral cavity just has a length corresponding to the gingival thickness is engaged. A female screw portion 1b is provided which is threaded with an abutment screw 3 for fixing the abutment 2 along a long axis thereof through a polygonal convex portion 1c provided in a portion located inside the oral cavity. In addition, a cutting blade portion 1d for tapping is provided at an end opposite to the end provided with the polygonal convex portion 1c.
In the embodiment shown in FIG. 5, the portion corresponding to the abutment 2 is provided in a frame cylinder 4 'described later, so that the implant fixture 1 does not have the abutment 2, but has a polygonal convex shape such as a hexagonal shape. The frame cylinder 4 'is engaged with the portion 1c, and has a shape similar to the shape shown in FIG. As shown in FIG. 6, a part corresponding to the abutment 2 and the abutment screw 3 is integrally formed inside the oral cavity of the implant fixture 1 as shown in FIG. This is the char 1 ', and thus any of the implant fixtures 1 or 1' shown in FIGS. 4, 5 and 6 can be used. The above description shows the case of the external connection type implant fixture in which the engaging portion provided inside the oral cavity of the implant fixture 1 or 1 ′ is provided as the polygonal convex portion 1c inside the oral cavity. An internal connection type implant fixture in which the engaging portion provided on the inner side is provided as a polygonal concave portion can be similarly used.
[0019]
Reference numeral 4 denotes a frame cylinder constituting one member of a fixing base for a dental implant denture, and 4 'denotes a frame cylinder having an abutment function constituting one member of a fixing base of a dental implant denture. The frame cylinder 4 or 4' Is installed inside the oral cavity of the implant fixture 1 or 1 'embedded in the insertion hole formed in the jaw bone of the missing tooth portion, and is fixed by a frame screw 5 described later. That is, the frame cylinder 4 shown in FIG. 4 is for the abutment 2 fixed by the abutment screw 3 inside the mouth of the implant fixture 1, and the frame cylinder 4 'shown in FIG. The frame cylinder 4 shown in FIG. 1 has a convex part 4a and / or a concave part 4b and / or a convex part 4a on the outer surface of the penetrating implant fixture 1 'having an abutment function, which is provided inside the oral cavity. Has a notch 4c so that a hard resin 7, which will be described later, can easily flow into the abutment screw 3 in the mode shown in FIG. 4 and the mode shown in FIG. In the embodiment shown in FIG. 6, a penetrating type implant fixture including an abutment function is provided. Protrusion 4d which head frame screw 5 is engaged in securing the frame screw 5 to be described later in Sucha 1 'is provided. Since a part of the frame cylinders 4 and 4 'may come into direct contact with the gingiva, a biometal having excellent biocompatibility and high mechanical properties, such as stainless steel, a gold alloy, a titanium alloy or titanium Is desirable.
[0020]
Reference numeral 5 denotes a frame screw for fixing the frame cylinder 4 or 4 ′. In the case of the embodiment shown in FIG. 4, a female screw portion screwed inside the oral cavity of the abutment screw 3, In the case shown in FIG. 6, the screw is screwed into the female screw portion screwed inside the oral cavity of the implant fixture 1, and in the case shown in FIG. 6, the screw is screwed inside the oral cavity of the gingival implant fixture 1 ′ having an abutment function. The male screw portion 5a is screwed into the female screw portion until the step 5b abuts on the projection 4d of the frame cylinder 4 or 4 ', and the frame cylinder 4 or 4' is consequently implanted into the implant fixture 1 or 1 '. It plays the role of fixing to.
[0021]
Reference numeral 6 denotes a frame for fixing a denture for a dental implant according to the present invention, which is installed with a frame cylinder 4 or 4 ′ fixed inside the oral cavity of the implant fixture 1 or 1 ′ and is adapted to the shape of a patient's ridge. The lingual and buccal plates X and Y made of a living metal such as stainless steel, gold alloy, titanium alloy or titanium, and the frame cylinder 4 or 4 'between the plates X and Y are bent. A living body such as stainless steel, a gold alloy, a titanium alloy, or titanium, which is disposed near a portion to be located and whose both ends are bonded and fixed to both plates X and Y to maintain a predetermined interval between the plates X and Y. And a metal plate connector Z. It is preferable that the plate X and the plate Y are bent in advance in accordance with the shape of a common chin ridge particularly in the case of an edentulous jaw, and the plate X and the plate Y are connected at one end. The use of a single plate is preferable because the number of parts is reduced and the operability is improved. Here, the plates X and Y and the plate-like connector Z preferably have a thickness of about 0.5 mm and a width of about 7 mm, and the length thereof is cut into an appropriate length according to the case. Just fine. The reason why both the plates X and Y and the plate-shaped connector Z are made of metal for a living body is that the frame 6 for fixing a dental prosthesis for a dental implant according to the present invention may come into direct contact with the gingiva, so that it has excellent biocompatibility. This is because it is necessary to have high mechanical properties.
[0022]
The lingual and buccal plates X and Y, which are one of the components of the dental implant denture fixing frame 6 according to the present invention, are roughened on both front and back surfaces. It is preferable because the bonding is strengthened and the bonding with the hard resin 7 described later is strengthened, and the plate-shaped connector Z, which is the other component of the frame 6 for fixing a dental prosthesis for a dental implant according to the present invention, has both front and back surfaces Is preferably roughened or provided with irregularities, because bonding with a hard resin 7 described later becomes strong.
[0023]
Numeral 7 is injected and filled between the two plates X and Y of the denture fixing frame 6 for a dental implant according to the present invention and the frame cylinder 4 inserted into the space surrounded by the plate-shaped connector Z, and solidified by injection filling. It is a hard resin that integrates the implant denture fixing frame 6 and the frame cylinder 4. The resin 7 is preferably an adhesive resin that firmly adheres to both plates X and Y and the plate-shaped connector Z, which are constituent members of the dental implant denture fixing frame 6.
[0024]
In such a configuration, in order to perform an implant treatment, first, after forming the flap, an implant hole is formed in the jaw bone at a predetermined position of the missing tooth portion, and the implant fixture 1 or the abutment function is provided in the implant hole. The penetrating implant fixture 1 'including the gingival is implanted. The implant fixtures 1 and 1 'are provided with a screw 1a on the outer peripheral surface as in the embodiment shown in FIGS. 4 to 6, and have a cutting edge 1d for tapping at the end opposite to the inside of the oral cavity. Is preferable, since a certain stable state is maintained even immediately after being embedded in the embedding hole. In the case of the embodiment shown in FIG. 4, the abutment 2 having the length corresponding to the gingival thickness is provided on the polygonal convex portion 1 c provided in the portion located on the inner side of the oral cavity. The abutment 2 is fixed to the implant fixture 1 by screwing the abutment screw 3 into the female screw portion 1b of the implant fixture 1 through a through hole passing through the center of the abutment 2. . This operation is the same as the operation performed in the conventional implant treatment.
The subsequent operations will be described for the embodiment shown in FIG. 4 for simplicity.
[0025]
Next, after suturing the flap, an impression coping is attached to the inside of the oral cavity of the abutment 2 to take an impression as shown in FIG. 7A, and a gypsum model in which an abutment analog is embedded according to a conventional method. Is prepared. Thereafter, as shown in FIG. 7 (B), the frame cylinder is mounted on each of the abutment analogs on the plaster model. This frame cylinder is previously manufactured to have a slightly larger diameter than the frame cylinder 4 actually used. It is preferable to use the completed frame cylinder because the completed dental implant fixing frame 6 for a dental implant according to the present invention can be easily installed in the oral cavity.
[0026]
In this state, the preparation for manufacturing the dental implant denture fixing frame 6 according to the present invention is completed, so that the lingual side and the buccal side of the plaster model are in contact with the lingual side and the buccal side with the frame cylinder interposed therebetween. The plates X and Y are bent in accordance with the shape of the ridge of the patient, and a plate-like connector Z is provided between the bent lingual and buccal plates X and Y in the vicinity of the portion where the frame cylinder is located. And both ends of the plate-shaped connector Z are bonded and fixed to both plates X and Y as shown in FIG. 7C.
At this time, the lingual and buccal plates X and Y usually have a longer length than the buccal plate Y as the lingual plate X because the length of the buccal plate Y is longer than the length of the lingual plate X. It is sufficient to prepare a plate having a short length. Plates X and Y on the lingual side and the buccal side are prepared without particular discrimination and are cut to an appropriate length at the site. May be used.
[0027]
The adhesive fixing between the lingual and buccal plates X, Y and the plate-shaped connector Z, which are the constituent members of the dental implant denture fixing frame 6 according to the present invention, is performed by, for example, using a metal bonding primer ( After pretreatment with a trade name: Metal Primer II, manufactured by GC Corporation, adhesion may be performed with an adhesive resin (trade name: Unifil Core, manufactured by GC Corporation).
[0028]
Thus, when the frame 6 for fixing the dental prosthesis for the dental implant according to the present invention is completed on the gypsum model, the frame 6 for fixing the dental prosthesis for the dental implant according to the present invention is removed from the gypsum model, and the abutment 2 in the oral cavity of the patient is provided. The frame cylinder 4 is mounted and removed from the plaster model in the space surrounded by the lingual and buccal plates X, Y and the plate connector Z on the lingual and buccal sides of the dental implant fixing frame 6 according to the present invention. Position each frame cylinder 4 in the patient's mouth so that it is positioned.
In this operation, the diameter of the frame cylinder, which defines the gap between the lingual and buccal plates X and Y when the frame 6 for fixing a dental prosthesis for a dental implant according to the present invention is manufactured on a plaster model, is actually measured. If a pre-fabricated one having a slightly larger diameter than the frame cylinder 4 used is used, the frame cylinder 4 is placed in a space surrounded by the lingual and buccal plates X and Y and the plate connector Z. There is no phenomenon that cannot be inserted.
[0029]
When the dental implant fixing frame 6 for dental implant according to the present invention is positioned in the oral cavity of the patient in this way, the lingual and buccal plates X, Y and the plate of the dental implant denture fixing frame 6 for the present invention are placed. As shown in FIG. 7 (D), an adhesive resin 7 is filled between the outside of the frame cylinder 4 and the lingual and buccal plates X and Y in the space surrounded by the connector Z. And make a temporary attachment. This is because it takes a long time to completely adhere the frame cylinder 4 and the plates X and Y to the hard resin 7 in the oral cavity with the hard resin 7, and a heavy operation is required. This is because it is preferable that the adhesive be simply temporarily attached and that complete adhesion be performed outside the oral cavity as described later. Thereafter, the frame screw 5 that fixed the frame cylinder 4 to the abutment 2 was removed, and the frame cylinder 4 integrated with the denture fixing frame 6 for dental implant according to the present invention via the bonding resin was abutted. After being removed from the frame 2, the frame 6 is fixed to the outside of the frame cylinder 4 in a space surrounded by the lingual and buccal plates X, Y and the plate-shaped connector Z of the frame 6 for fixing a denture for dental implant according to the present invention. Then, the outside of the frame cylinder 4 and the lingual and buccal plates X, Y and the plate-like connector Z are completely bonded and fixed to complete the fixing base of the dental implant denture.
In this operation, if the front and back surfaces of the lingual and cheek plates X and Y are roughened, the adhesive strength with the hard resin is improved, and the front and back surfaces of the plate-shaped connector Z are roughened. It is preferable that the surface is provided or that the surface is provided with irregularities, because the bonding strength with the hard resin is improved.
[0030]
The above description has been made on the mode using the abutment 2 shown in FIG. 4, but in the case of the mode shown in FIG. 5, the abutment 2 is replaced with the frame cylinder 4 ', and in the case of the mode shown in FIG. Can be replaced with the abutment 2 as the implant fixture 1 '.
[0031]
When the dental implant denture fixing base is completed in this way, the dental implant denture fixing base is returned to the patient's mouth, and the length of the frame cylinder 4 or 4 ′ of the dental implant denture fixing base is made longer than the frame screw 5. Via a sufficiently long guide pin to the implant fixture 1 or 1 '(to the abutment 2 in the embodiment shown in FIG. 4, to the implant fixture 1 in the embodiment shown in FIG. 5, and to the implant fixture 1 in the embodiment shown in FIG. 6). )), Press the impression material against the impression acquisition site in order to acquire the impression of the intraoral shape, and then operate the guide pin protruding inside the oral cavity of the impression material with a wrench or screwdriver, etc. to fix the implant. After removing from the char 1 or 1 ', the impression material and the fixation base for the dental implant denture are taken together from the oral cavity. To complete the impression acquisition.
[0032]
When the impression acquisition is completed in this manner, for example, the joint has the same shape as the abutment 2 on the side opposite to the inside of the oral cavity of the frame cylinder 4 of the fixing base for the dental implant denture which is integral with the impression material. An abutment analog corresponding to the implant fixture 1 is mounted on the gypsum model with the guide pin to prepare a gypsum model, and then the guide pin is removed from the abutment analog of the gypsum model to make an impression from the fixing base of the dental implant denture. Remove the material, then arrange the artificial teeth through the brazing material on the inner surface of the oral cavity of the fixed base of the dental implant denture through a brazing material, place this gypsum model in a dental flask, and place the gypsum model inside the mouth After the plaster is poured and the artificial teeth are retained, the wax material is incinerated and resin for the denture base is poured into this space to form the gingival part. Was carried out, it is the denture is completed.
[0033]
In this work, if the front and back surfaces of the lingual and buccal plates X and Y of the dental implant denture fixing frame 6 according to the present invention are roughened, the adhesive strength with the denture base resin is improved. This is preferable because the fixing base of the denture for dental implant and the resin for denture base are firmly fixed.
[0034]
The denture manufactured as described above has a through hole formed at a position corresponding to the insertion hole 4a of the frame cylinder 4 or 4 'fixed to the denture fixing frame 6 for dental implant according to the present invention with the hard resin 7. The frame screw 5 penetrates through the through hole of the artificial tooth which is arranged and fixed, the abutment 2 in the embodiment shown in FIG. 4, and the implant fixture 1 in the embodiment shown in FIG. In the case of the embodiment shown in the figure, it is used by being fixed by screwing it into the gingival penetrating type implant fixture 1 ′ having an abutment function, and in the insertion hole formed in the jaw bone of the missing tooth part. Since the implant screw 1 is fixed to the inside of the oral cavity of each of the plurality of implanted fixtures 1 or 1 ′ by the frame screw 5, the implant fixture 1 is fixed. Is easy to receive excessive force against occlusal load when there is only one gingival penetrating implant fixture 1 'including an abutment function, whereas a plurality of implant fixtures 1 or 1' have rigid body. Since the base of the denture for dental implant which can be considered is fixed, the load acting on the implant fixture 1 or 1 'alone becomes small, so that the overload on the implant fixture 1 or 1' and the implant fixture 1 or 1 ''Can be avoided.
[0035]
【The invention's effect】
As described in detail above, the frame for fixing a denture for a dental implant according to the present invention is installed with a frame cylinder fixed on the inner side of the oral cavity of the implant fixture, and is bent according to the shape of a patient's ridge. Lingual and buccal metal plates for a living body, and a plate disposed between the two plates and near a portion where the frame cylinder is located, and both ends of the plates are adhesively fixed to the two plates so that a gap between the two plates is provided. And a plate-like connector made of a living body metal for maintaining a predetermined distance between the plate and the plaster model. A plate connector is placed between the lingual and buccal plates near the portion where the frame cylinder is located, and both ends of the plate connector are placed at both ends. It is used with the distance between the two plates maintained at a predetermined distance by adhesively fixing it to the plate, so that the shape of the patient's ridge may be adjusted even if the shape of the patient's ridge varies from patient to patient. In addition to this, there is no restriction on the position of the implant fixture to be implanted in the jawbone of the missing tooth of the patient, and the implant fixture is implanted in the implantation hole formed in the jawbone of the missing tooth. There is no need to prepare various types of brazing implant fixtures according to the number of brazing fixtures, and the amount of hard resin to be filled around the frame cylinder can be made approximately the same for one frame cylinder. It is possible to produce a uniform dental implant base for dental implants.
[0036]
In addition, the dental implant denture using the dental implant denture fixing base manufactured using the dental implant denture fixing frame according to the present invention does not cover the oral mucosa unlike conventional dentures, so that the dental No discomfort or dullness of taste when wearing a prosthesis for use, a feeling of use similar to natural teeth is obtained, and an appropriate occlusal force is applied to the jawbone, so no implant fixture is embedded The shortcomings of dental implant treatment, which has the advantage of minimizing the expected bone resorption, are reduced, reducing the burden on the patient and reducing the burden on the patient. Since it is firmly connected and fixed to the dental implant fixing frame according to the present invention, a large load is applied to the implant fixture. Is prevented to act, it is there an advantage such that even during the osseointegration period is achieved osseointegration.
[0037]
And, if both plates are bent in advance according to the shape of a general person's ridge, it becomes easy to bend both plates according to the shape of the patient's ridge, and both plates become bent. If it consists of one plate connected at one end, the number of parts is reduced and the work to complete the frame for fixing the denture for implant becomes easy, and if both the front and back surfaces of the plate are roughened, Not only the adhesive strength with the hard resin for fixing the cylinder is improved, but also the adhesive strength with the denture base resin is improved, and both the front and back surfaces of the plate-shaped connector are roughened or uneven. By doing so, the bonding strength with the hard resin for fixing the frame cylinder is improved, and a stronger base for fixing a denture for a dental implant can be manufactured.
[0038]
Such a frame for fixing a denture for a dental implant according to the present invention has a mastication function immediately or early after an operation in which a plurality of implant fixtures are inserted into an insertion hole formed in a jaw bone of a missing tooth. And its value in the dental field is very large.
[Brief description of the drawings]
FIG. 1 is a perspective explanatory view showing the shape of one embodiment of a lingual and buccal plate and a plate-like connector constituting a frame for fixing a denture for a dental implant according to the present invention.
FIG. 2 is a perspective view showing a completed state of the dental implant fixing frame according to the present invention shown in FIG. 1;
FIG. 3 is a perspective explanatory view showing shapes of another embodiment of a lingual and buccal plate and a plate-like connector constituting a frame for fixing a denture for a dental implant according to the present invention.
FIG. 4 is an explanatory cross-sectional view showing a state in which a fixing base of a dental implant denture manufactured using the dental implant denture fixing frame according to the present invention shown in FIG. 1 is fixed to an implant fixture.
FIG. 5 is an explanatory sectional view of another embodiment corresponding to FIG. 4;
FIG. 6 is an explanatory sectional view of still another embodiment corresponding to FIG. 4 when a gingival implant fixture having an abutment function is used.
FIG. 7 is an explanatory cross-sectional view showing a manufacturing process of the dental implant denture fixing frame according to the present invention used for the dental implant denture fixing base having the structure shown in FIG. 4;
[Explanation of symbols]
1 implant fixture
1a screw
1b Female thread
1c Polygonal convex part
1d cutting edge
1 'Transgingival implant fixture with abutment function
2 Abutment
3 Abutment screw
4 Frame cylinder
4 'frame cylinder with abutment function
4a convex part
4b recess
4c Notch
4d protrusion
5 Frame screw
5a Male thread
5b Step
6. A frame for fixing a denture for a dental implant according to the present invention
X Lingual plate
Y Cheek side plate
Z plate connector
7 Hard resin

Claims (5)

Lingual and buccal metallic biomaterials that are installed with the frame cylinder (4) fixed inside the oral cavity of the implant fixture (1 or 1 ′) and bent to the shape of the patient's ridge The plate (X, Y) is disposed between the plates (X, Y) and in the vicinity of the portion where the frame cylinder (4) is located, and both ends thereof are adhesively fixed to the plates (X, Y). A frame (6) for fixing a denture for a dental implant, comprising: a biological metal plate-like connector (Z) for maintaining a distance between the plates (X, Y) at a predetermined distance. The frame (6) for fixing a denture for a dental implant according to claim 1, wherein the plate (X) and the plate (Y) are preliminarily bent in accordance with the shape of a general chin ridge. The dental implant fixing frame (6) according to claim 1 or 2, wherein the plate (X) and the plate (Y) comprise one plate connected at one end thereof. 4. The frame (6) for fixing a denture for a dental implant according to claim 1, wherein the front and back surfaces of the plate (X, Y) are roughened. The denture fixing frame (6) according to any one of claims 1 to 4, wherein the front and rear surfaces of the plate-shaped connector (Z) are roughened or provided with irregularities.

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