KR200242258Y1 - Pin retented inlay bridge - Google Patents

Abstract

The present invention forms an inlay cavity on the upper and adjacent surfaces of the abutment teeth on both sides of the missing tooth, and is provided with an inlay for binding to the inlay of the abutment on both sides of the crown to compensate for the missing tooth, Comprising a denture prosthesis made of an inlay bridge, characterized in that the coupling hole is drilled on the same position as the pinhole formed in the oblique direction in the inlay and copper, and the pin is inserted and fixed in the diagonal direction between the coupling hole and the pinhole. As a feature of the configuration, when fixing a prosthesis of a fixed dental denture made of metal or ceramic material to replace a missing tooth, the prosthesis of the dental denture and the abutment of the processed denture are minimized after minimizing the deletion of the abutment adjacent to the missing tooth. It can be fixed with a pin, etc. to prevent the deletion of more than necessary to the abutment, Prosthetic prosthesis as a pin-hold inlay bridge for the improvement of denture prostheses to simplify the process of fixed denture treatment, to reduce the cost of the procedure, and to suppress side effects such as the occurrence of tooth decay after long-term use. It is about.

Description

Pin retented inlay bridge {Pin retented inlay bridge}

The present invention relates to a denture prosthesis, in particular in the field of dentistry, and more particularly to a denture prosthesis, which is an inlay bridge that holds and retains pins. When fixing the prosthesis of the denture, the cutting teeth of the abutment adjacent to the missing tooth are minimized, so that the prosthesis of the processed denture can be fixed with the abutment teeth and pins, thereby preventing the deletion of more than necessary to the abutment. In addition to simplifying the procedure, the present invention relates to the improvement of denture prosthesis as a pin keeping inlay bridge to reduce the cost of the procedure and to suppress side effects such as the occurrence of tooth decay after long-term use.

As a normal person grows, the teeth are replaced with permanent teeth, and the permanent teeth are used to provide oral activities such as food decomposition, accurate pronunciation, and aesthetic appearance.However, these permanent teeth have various kinds of tooth decay and gum disease. When one or more damaged teeth are caused by oral disease, food intake is very inconvenient or difficult to implement correct pronunciation in pronunciation, and it can give a bad impression to others. .

In order to treat and restore such damaged teeth, the prosthesis serving as a denture is used to perform recovery of chewing function, enabling the ingestion and decomposition of food, and improving aesthetic stability and interpersonal relationship. For example, dental surgery is used not only for the treatment of dental health, but also as a procedure for overcoming psychological obstacles in social life. Such prosthetics should be made of dentures that fit the perception of the patient's oral condition. To correct dentures in their natural form in whole or in part.

In general, dentures refer to prosthetics that artificially replace when natural teeth and their associated tissues are missing, also called values. In the broad sense, it means prosthesis with artificial teeth, which is used mainly including partial denture and complete denture. It is used for dental cap and crown. , Bridges, dentures, veneers, inlays and onlays, eg peripheral caps and crowns, missing one or more Instead, it includes a bridge or the like placed on the remaining teeth of the natural tooth to support at least two of the rest of the teeth at the same time.

Currently, the dentures generally used can be classified into three types of fixed dentures, local dentures, and total dentures as described above. Fixed dentures are defined by a defect when one or more natural teeth are missing. It is a prosthesis which substitutes processed tooth, and the natural tooth adjacent to the processed tooth is covered with a crown tooth and the crown and the processed tooth are permanently fixed in the oral cavity. Its shape, function, manufacturing method and adaptation vary. .

On the other hand, local teeth are usually twisted as one prosthesis that replaces the appearance and function by supplementing it with artificial substitutes that are retained in the tissues or teeth when one or more natural teeth are missing.

On the other hand, the total dentures are dentures made of various materials by artificial methods and means to patients without any natural teeth, and can be said to be the final prosthesis of the dental prosthesis. Using such total dentures, patients are designed, operated, and used to chew foods or to exercise accurate pronunciation, provide a natural aesthetic appearance, and harm the soft tissues.

The present invention mainly adopts fixed processed dentures, that is, processed dentures in place of damaged teeth, which can be combined with adjacent natural teeth to perform aesthetics, functional recovery as a tooth, and pronunciation correction. It relates to a dental prosthesis that will be, briefly introduce the conventional surgical method and fixed denture prosthesis associated with it.

Prosthesis through the fixed dentures as described above is provided with a cap of the same type as the natural teeth located on both sides of the damaged teeth to cover the decayed or weakened teeth and to cover the upper teeth. In a manner called a crown bridge.

Prosthesis treatment using the crown denture denture treatment as shown in Figure 5, after removing the abutment 200 on both sides of the upper surface 2 ~ 3mm, side 1 ~ 3mm by force to approximately 1/3 to remove the impression ( After obtaining the impression, the crown bridge (KR) prosthesis is formed by casting with a ceramic ceramic or acrylic resin that provides the same shape and color as a natural tooth, and then abutments placed on both sides of the missing damaged tooth. It is taking the method of overwriting 200.

However, this procedure has the advantage that the procedure can be performed at the cost of simplicity and low cost. On the other hand, since the natural tooth should be deleted as much as the area covered by the crown bridge, the procedure is very difficult and eliminated. In case of damaging the nerves of the tooth during the procedure, there is a problem that provides a significant pain to the patient during the procedure. In addition, there is a problem such that the nerve of the deleted tooth is damaged or the normal service life is shortened, as well as foreign substances are caught between the crown dentured cover for a long time, and the removal work is not easy. Serious problems have been pointed out such that a hole is formed in the crown of the occlusal surface (chewing side) or a gap occurs in the crown surrounding the deleted natural tooth so that the tooth can be transferred to caries.

Therefore, to compensate for the above problems, implants (implants) are implanted in the jawbone by implanting the prosthesis, such dental implants (dental implants) such as dental prosthesis (dental implants) in the mandible or maxilla It has been used to provide a platform for anchoring to the alveolar bone. Typically, dental implant systems in the form of roots employ dental implants that are located in designated areas of the alveolar bone.

At this time, a disposable mount is used as a connection medium for the insertion tool used to implant the implant into the bone tissue. When the implant is a screw-type implant, the mount is used as a socket used to bolt the implant to a designated site. Removable extension of a representative implant that provides a hexagonal nut shaped surface for engagement. After the implant has been tightened to the designated location, the mount is removed and discarded, the cover bolt is attached to the top (top) of the implant, and the bone tissue covering the designated area grows into the implant for several months, thereby allowing the implant to It will be fixed.

Once the surrounding bone tissue is sufficiently fused to the implant, the cover bolts are removed and the impression coping is attached to the implant. The impression is used as a model of the patient's mouth that opens up the impression of the implant and nearby teeth and wraps around the implant. You will create a dental prosthesis. The dental prosthesis is attached to the abutment by other attachment means, which acts as a platform for fixing the dental prosthesis to the implant.

However, such an implant method has a problem that it takes a long period of procedure of at least 3 months to a year and a considerable cost of the procedure. In addition, there are problems such as side effects caused by the need for advanced techniques such as screwing the bones to avoid tissues such as nerves and blood vessels, and the teeth treated through implant prostheses have a high impact resistance to the side. It has been pointed out that the lack of a load applied to the tooth causes fatal damage to the maxilla and mandible. A solution for overcoming such a problem is disclosed in International Application No. PCT / US1997 / 12673 (Korean Patent Application No. 1999-7000350).

On the other hand, in order to solve the problem of the crown bridge (crown bridge), Patent Application No. 2000-67885, which was previously filed and published in the Republic of Korea Patent Office is disclosed, as shown in Figure 5 to the height of the 2/3 point of the tooth Artificial teeth 20 in which the indentation grooves 21 are formed, and the plurality of protrusions 24 to be fixed to the adjacent portion of the insertion portion 27 and the damaged tooth fixed to the indentation groove 21 of the artificial tooth 20. The dental prosthesis 2 is characterized in that the inlay 22 consisting of a fixing portion 25 is provided to form a constant angle in the downward direction.

In this patent application 2000-67885, the prosthesis of the prosthesis of the denture is relatively simple by overcoming damages of adjacent teeth, increased procedure duration, and significant procedure cost and side effects, which are disadvantages caused by crown bridge and implant procedures. It can be expected to have the advantage of the procedure, but since the fixing part between the preparation tooth and the dental prosthesis must be manufactured separately, it is very difficult to obtain the prosthesis of the precisely processed denture due to the information obtained by the impression and the error generated during the manufacturing process. It is pointed out that it is difficult to expect the same effect as natural teeth when performing the procedure on the patient.

In addition, when compensating missing teeth by using the prosthesis of the processed dentures, the teeth between the processed dentures and the natural teeth (abutment tooth) should be opened to be easily cleaned of debris such as food powder. In the same case, the fixed part combined with the processed denture is in close contact with the natural denture, and it is impossible to secure the interdental gap between the processed denture and the abutment at the lower end thereof, so it is not easy to clean when food residue is caught. Food decay occurs, resulting in damage to the preparation tooth (natural teeth), as well as serious damage to the gums have been pointed out.

Therefore, the present invention has been devised to solve the above problems, the fixed process denture corresponding to the missing tooth using the abutment of both sides to restore and restore the function of the missing tooth during use of the permanent tooth (hereinafter the present invention In the specification, by forming a prosthesis, which is commonly referred to as a processed denture, so that the abutment can be easily and painlessly performed by the patient, replacing the lost tooth and the tissue of the state with the processed denture so that oral activity, chewing function, pronunciation function, It is an object of the present invention to maintain the aesthetic function.

In addition, the present invention, by allowing the treatment can be performed in a state of minimizing the deletion value of the preparation, there is another object to prevent side effects such as serious damage to the preparation tooth is a natural tooth.

In addition, the present invention has a configuration that connects the prosthesis of the fixed working denture with the abutment teeth using pins, and secures the fixing between the abutment teeth and the processing teeth by fixing two or three pins as necessary. Another purpose is to prevent inconvenience in use, such as a phenomenon in which the fixed denture is removed from the preparation tooth when chewing a strong adhesive material such as gum or candy when used. .

Figure 1a, b is a perspective view showing a state in which the denture prosthesis to be treated by the present invention separated in the oral cavity,

Figure 2 illustrates the procedure of the present invention,

Figure 2a is a schematic view showing the formation of inlay vortex and pinhole in the preparation tooth,

Figure 2b is a schematic diagram showing the pinning of the inlay bridge obtained by model casting after the acquisition of the pin between the abutment teeth,

2C is a cross-sectional view thereof,

FIG. 2D shows the inlay extending laterally from the inlay bridge of FIG. 2B and being secured to the abutment, FIG.

3 illustrates that the present invention is adopted in the anterior part unlike FIG. 2.

Figure 3a is a schematic view showing the formation of inlay vortex and pinhole in the preparation tooth,

3B is a cross sectional view of FIG. 4A;

3C is a view illustrating a state in which an inlay bridge is fixed between machined abutments. FIG. 4A, 4B, and 4C illustrate a process of processing a pinhole using a positioning bar, a guide bar, a final forming bar, and the like on the abutment. Is a schematic diagram,

5 is a view showing an application state of a conventional crown bridge,

6 is a perspective view showing a conventional embodiment.

-Brief description of the major symbols in the drawings-

One; Posterior

100; Inlay bridge 110; Crown

120; Inlay 121; Joiner

200; Abutment 210; Inlay and copper

220; Pinhole P; Pin a; Positioning bar b; Information bar c; Final formation bar

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention for achieving the above object.

Figure 1a, b is a perspective view showing a state in which the denture prosthesis to be treated by the present invention is separated in the oral cavity, Figure 2 is a view showing the procedure of the present invention, Figure 3 is seen in the anterior tooth unlike 4 is a schematic view showing the processing of a pinhole using a positioning bar, a guide bar, a final forming bar, and the like on abutment.

As shown in the accompanying drawings, the present invention specifically describes the denture prosthesis, which is a processed denture formed by an inlay bridge in detail. In this description, the description mainly focuses on an inlay bridge coupled to a molar portion corresponding to a molar tooth. .

First, the practitioner must form abutments located on both sides of the missing tooth in order to operate the patient using the present invention, that is, located on both sides of the missing tooth (upper jaw) of the dental patient to be treated. The abutment for fixing the denture prosthesis of the denture formed by the inlay bridge of is formed.

That is, the practitioner may be seated on the inner top surface of the natural tooth, which may correspond to the abutment 200 of the dental patient, that is, the inlay 120 of the processed denture (ie, the inlay bridge) 100, as shown in FIGS. 1 and 2. In order to be able to form the inlay vortex 210 on the inner upper surface of the natural tooth (abutment) 200.

Here, the formation of the inlay vortex 210 is to fix the processed denture to be the inlay bridge 100 to the abutment 200, for example, in the case of the posterior portion 1 to fix the inlay 120 only on the upper surface In order to eliminate the phenomenon of detachment and the like, which may be caused by severe oral activity, and to fix it more firmly, as shown in FIG. The inlay 120 of the inlay bridge 100 is attached to be fixed to increase the holding force. At this time, the formation depth of the inlay cavity 210 is formed to be the same as the thickness of the normal inlay 120, and after completion of the procedure is matched by the surface treatment between the inlay 120 and the preparation tooth 200, the patient and the actual teeth Try to get the same feeling.

Inlay vortex 210 formed in this way can be the same as conventional methods and procedures, the inlay vortex 210 is integrally extended from both sides of the crown 110 of the inlay bridge 120 of the present invention and the inlay It is preferable that the inlay 120 which is the same as the shape of the vortex 210 is formed to be finely erased enough to be seated and fixed. Then, from the upper surface of the dental abutment 110 and the portion of the dentures to be processed, it has a diameter of about 1 to 1.5 mm in a diagonal direction inclined approximately 45 degrees in the root direction, and a pinhole having a depth of 1 to 1.5 mm ( 220 to complete the deletion of the preparation tooth 200.

At this time, the number of the pinhole 220 is the health of the joint surface and the abutment 200 and the oral activity characteristics of the patient between the abutment 200 and the crown 110 corresponding to the artificial tooth of the inlay bridge 100 that is the processed dentures At least one to two to three may be formed in consideration, and if necessary, in the case of the posterior part 1, the inlay 120 is extended to the lingual side as shown in FIG. In order to be fixed to the 200, at least one pinhole 220 may be formed diagonally downward.

Here, if the internal structure of the tooth is briefly described, the inner central portion of the tooth has a dimension layer corresponding to the nerve, and a soft dentin layer having a constant thickness is formed on the outer surface thereof, and a solid keratin having a predetermined thickness surrounding the outer surface. As the enamel layer of the bar is formed, the pinhole 220 passes through the enamel layer so that a part of the dentin layer is formed so that a pin (P), which will be described later, is inlay bridge (100) and abutment (치). Iii) It is desirable to be able to firmly fix between the 200.

Meanwhile, the means for forming the pinhole 220 is to use a dental drill cutting tool called a bar (bar), as shown in Figure 4 to form a pinhole 220 of the present invention, as shown in FIG. An end of about 0.7 to 1.1 mm in diameter to select the proper position to fix the pin (P) to be fixed by setting the pin (P) is positioned using a round positioning bar (a). The pinhole is formed and formed in consideration of the length of the pin P to be pinned to the pinhole 220 by using a guide bur (b) having a diameter of 1.2 mm and a length of about 1.5 mm ( The initial pinhole 220 is formed while expanding the diameter of 220.

Then, the pinhole 220 is formed in a tapered state so as to correspond to the shape of the pin P by using a final forming bar c having a tapered shape. To complete.

At this time, the diameter of the shortest end of the final forming bar (final forming bur) (c) can be selectively employed in the range of 1.3 ~ 1.7mm, the length is preferably used in the 1.5 ~ 2.0mm. The outer circumferential surface of the final forming bar (c) has a screw shape, as in the case of a conventional dental implant, so that the by-products of the tooth being cut may be moved upward and outflow.

As described above, when the inlay cavity 210 and the pinhole 220 are formed in the abutment 200 of the patient, an impression of the implantation area of the patient is acquired. The impression acquisition step as described above is carried out by a conventional method.

The impression is made by placing a soft semi-fluid material in the oral cavity and allowing it to cure. After acquiring such an impression, the oral cavity is reproduced with a plaster model, and then, in the plaster model, the prosthesis is made of wax through a plastic tube (not shown) to match the pinhole 220. At this time, it is preferable that the inner diameter of the plastic pipe is the same size as the pin (P). In this way it is to be cast to produce a prosthesis for the inlay bridge 100 through which the coupling holes 121 are drilled.

At this time, the inlay bridge 100 obtained by casting after the acquisition satisfies the clinical information in order to recover the missing teeth and to manufacture the inlay bridge 100 prosthesis of the inner contour suitable for mechanical durability, impact resistance, abrasion resistance, and aesthetic standards. do. On the other hand, by integrating the inlay vortex 210 in both sides of the crown 110 to obtain an inlay 120 made of the same as the surface layer of the preparation tooth 200, the inlay bridge (inlay) which is a processed denture suitable for the oral state (inlay) bridge) 100 is obtained.

In this case, the inlay 120 of the inlay bridge 100 may penetrate the pin P at the same position as the position of the pinhole 220 formed at a predetermined depth in an oblique direction at an appropriate position of the inlay cavity 210 of the abutment 200. The coupling hole 121 can be punched during casting after obtaining the impression.

On the other hand, in order to implant the inlay bridge 100 obtained by casting after the impression acquisition as described above in the missing tooth between the abutment 200 and the abutment 200 of the patient recognition area, both sides of the inlay bridge 100 Integrally provided with, and matched between the pin hole 220 of the coupling hole 121 and the abutment 200 of the inlay 120 to be expanded, has a diameter to be fitted into the pinhole 220 and has a length of 3 ~ 4mm The pin (P) having an inlay 120 and the insertion hole 121 and the pinhole 220 of the abutment 200 is fixed to be inserted.

At this time, before fixing the pin (P) as described above using an ordinary adhesive means (for example, resin cement), the inner surface of the inlay vortex 210 and the inlay 120 of the inlay bridge 100 of the abutment 200 firmly Allow it to bond.

At this time, the pin (P) preferably has a wedge function to be fixed while being pressed into the coupling hole 121 and the pinhole 220 to have a shape of the upper and lower narrowing.

This pin (P) is to be inserted and fixed in a diagonal direction using a separate fixing means (not shown), inlay 120 of the abutment 200 and the inlay 120 of the inlay bridge 100 While the adhesive work with the inner surface, the pin (P) inserted into the coupling hole 121 and the pinhole 220 is driven obliquely downward, and the inlay bridge 100 is applied to the vertical force or lateral direction generated during oral activity. It is possible to completely prevent stripping from the impact force.

In this way, after the fixing work is completed by the inlay bridge 100, which is the prosthesis of the processed denture, the abutment 200 is processed and formed to coincide between the surface layer of the abutment 200 and the surface of the inlay 120 of the inlay bridge 100. In addition, the patient's oral activity should feel the same as natural teeth.

In the above-described embodiment, an example in which the inlay bridge 120, which is a prosthesis of the processed denture, is mainly applied when a missing tooth is generated in the posterior tooth 1, is similarly made to the anterior tooth part 2 of the front tooth. After forming the inlay vortex 210 on the lingual side of the abutment 200 located on both sides of the missing tooth as shown in the pin (220) using the pin (bur) to the pin (P) can be fixed After forming the impression in consideration of the clinical information in such a state, the inlay bridge 100 having the coupling hole 121 at the same position as the pinhole 220 in the inlay 120 using a plastic pipe or the like. After molding, the bonding hole 121 is drilled in the inlay 120 and the inlay cavity 210 by using a fixing means for inserting and fixing the pin P at the same time by using an adhesive means such as resin cement. ) And pinholes 220 A series of processes and configurations in which the upper pin P is driven to have the wedge function to fix the inlay bridge 100 to the abutment 200 are the same.

Therefore, according to the present invention, when the fixed denture to replace the missing tooth is fixed to the natural denture, that is, the abutment is inevitably deleted, so that the removal denture of the abutment can be minimized to fix the processed denture made of the inlay bridge prosthesis. By doing so, it is possible to protect the prepared tooth as much as possible and prevent the phenomenon in which the prepared tooth is corroded by foreign matters and transferred to caries in advance.

In addition, according to the present invention, when fixing the food with strong adhesiveness such as gum or candy during oral activity after the application of the processed dentures, the process of detaching the processed dentures from the abutment can be completely prevented by fixing the pins. You can expect the benefits of safe oral activities.

In addition, the present invention minimizes the deletion of the abutment teeth adjacent to the missing tooth, and thus allows the prosthesis of the processed denture to be fixed with the abutment tooth and the pin, thereby preventing the deletion of the abutment teeth more than necessary, thereby simplifying the fixed dental denture procedure. Of course, the effect can be expected to achieve a lower cost of the procedure.

In the above, the present invention has been shown and described with reference to certain preferred embodiments, but the present invention is not limited to the above-described embodiments, and those skilled in the art to which the present invention pertains without departing from the spirit of the present invention. Various changes and modifications may be made by the user.

Claims (6)

Inlay 120 is integrally provided with the inlay 120 formed on a portion of the abutment 200 on both sides of the crown 110 to compensate for the missing tooth, but the abutment 200 is disposed on the inlay 120. The coupling hole 121 is drilled on the same position as that of the pinhole 220 formed in the diagonal direction in the inlay cavity 210 of the The denture prosthesis as a pin retaining inlay bridge, characterized in that the pin (P) is inserted and fixed in an oblique direction between the coupling hole 121 and the pinhole 220. The method of claim 1, The pinhole 220 formed at the proper position of the inlay vortex 210 of the abutment 200 is formed with a depth of 1 to 1.5 mm in an oblique direction, and is formed as a pin keeping inlay bridge. Denture prosthesis. The method of claim 1, The pin (P) is a prosthesis for dentures to be a pin holding inlay bridge, including being in the upper and lower negotiation. The method of claim 1, In order to form the pinhole 220, a positioning bar (a) for setting an appropriate position of the inlay cavity 210, and a guide bar for extending the set position and forming a primary ( b) and forming the pinhole by a final forming bar (c) having a shape in which a screw is formed on the outer circumferential surface for forming the taper 220 and the shape of the pinhole 220 in a tapered state under normal lightening. The denture prosthesis which becomes the pin maintenance inlay bridge to include. The method of claim 1, The pinhole 220 is a prosthesis for dentures to be a pin maintenance inlay bridge comprising at least one formed. The method of claim 1, Prosthesis for dentures to be a pin retaining inlay bridge comprising a plastic tube necessary for forming the coupling hole 121 of the inlay 120 during the production of the prosthesis pore of the inlay bridge (100).