JP2005130997A - Retaining device for denture and denture retaining device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a denture retaining device which facilitates the attachment and detachment of various dentures by using a root of a tooth. <P>SOLUTION: The denture retaining device 1, attached and fixed to the root 8 of the tooth to attach the denture, has a supporting rod 3 inserted in the root of the tooth under a base plate part 2 and is equipped with a hooking head part 5 for attaching the denture through a recessed ring part 6 on the base plate part 2. The hooking head part 5, the base plate part 2, and the supporting rod 3 are integrally formed of a metal. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a denture maintenance device and denture maintenance device that can be used for various oral dentistry.

  Conventionally, in a partial denture P as shown in FIG. 7, there is a method of detachably fixing to two remaining normal teeth, that is, their own teeth, using left and right fixing springs Q. It is taken. In the so-called total denture R in which all teeth are arranged as dentures, as shown in FIG. 8, a method of fixing the total denture R directly on the upper surface or the lower surface of the oral cavity or using fixing glue is known. .

For such dentures, if there is a root recently, a method has been adopted in which a hole is made in the root, a metal rod is embedded and fixed, and the denture is placed and fixed on the top of the rod. Metal rods that are embedded and fixed in the tooth root are made each time using brazing. That is, a hole in the root of a tooth is cast, a wax mold corresponding to the hole is made, and a desired metal is melted and poured into the wax mold thus produced to create a rod rod of the desired metal (for example, a patent (See Reference 1.)
JP 2003-260067 A

  However, in the above-mentioned prior examples, since brazing is indispensable, it is impossible to easily treat the patient, requiring a lot of time and labor, and it is impossible to treat immediately.

  The present invention has been made paying attention to the above points. In addition to partial dentures, even if it is a total denture, if there is a tooth root, this tooth root is utilized in a short time and more efficiently. It is another object of the present invention to provide a denture maintenance device and a denture maintenance device that can detachably fix all kinds of dentures.

  The present invention can solve the above-described problems by including the following configuration.

  (1) A denture maintenance device that can be mounted and fixed on a tooth root and mounted on a denture, having a support rod for inserting a root at the bottom of the base plate, and a concave ring at the top of the base plate A dental prosthesis maintenance tool comprising: a heel head for attaching a denture through a base, and a heel head, a base plate portion and a support rod heel formed integrally with metal.

  (2) The denture is formed as a denture composed of one or more teeth, and a retaining hole into which the head of the first aspect of the invention can be inserted is formed at the lower portion of the denture, and the concave of the head of the head is formed. A denture maintenance device comprising an O-ring that can be elastically engaged with a ring portion.

  (3) A denture maintenance device comprising the denture maintenance device according to (1) and a denture having a retaining hole in which the O-ring according to (2) is embedded.

  According to the present invention, the length of the support rod の of the denture maintenance device itself, which is adjusted by heel or cutting, is fixed in the hole of the root of the tooth during the treatment of the patient by using a normal adhesive. In the denture base on the denture side, an uncured hole is formed in a hole that is sufficiently large so that the O-ring engaged with the base plate portion, the heel portion, and the concave ring portion can be inserted. Filled with resin, formed in unison, solidified and integrated with the denture base in a meshed state, and then pulled away to create a retaining hole with a size equivalent to the base plate and heel on the denture side. It is possible to easily attach and detach the denture in a state where it is embedded, and it can be provided at low cost by omitting the work of a dental technician or the like.

  An embodiment of the present invention will be described below.

  Reference numeral 1 denotes a denture maintenance tool that is formed of a metal that is easily adapted to the human body, such as titanium metal, and is provided with a support rod 3 at the bottom of the base plate portion 2. A removal prevention means 4 is formed. In the drawing, a screw-like projecting structure is used, but the configuration is not limited to a groove or a projecting portion.

  Reference numeral 5 denotes a spherical head portion formed through a concave ring portion 6 formed on the upper portion of the substrate portion 2.

  The diameter of the support rod 3 of the denture maintenance tool 1 is preferably made narrower as it goes downward, and the length is formed so as to be freely deformable by cutting.

  Reference numeral 7 denotes an O-ring that can be engaged with the concave ring portion 6, which is formed of resin or rubber having appropriate elasticity, and is disposed and fixed on the denture side. Therefore, the outer shape of the concave ring portion 6 with which the O-ring 7 engages is formed in a smoothly curved arc shape α that can be closely contacted without forming a gap.

  Below, with reference to FIG. 4, the usage method of the maintenance tool 1 for dentures is demonstrated.

  First, the hole 9 is cut in the central axis direction of the tooth root 8 (see FIG. 4A). Next, the support rod 3 is inserted into the hole 9, filled with an adhesive (for example, Superbond (R)), the denture maintenance device 1 is implanted in the root 8, and the substrate portion 2 is placed on the surface of the root 8. Then, the concave ring portion 6 and the collar head portion 5 are projected, and the O-ring 7 is fitted into the concave ring portion 6 (see FIG. 4B).

  On the other hand, the denture that engages with the collar head 5, that is, the denture base 10 of the partial denture P or the total denture R, the O-ring 7 fitted to the collar head 5, the concave ring portion 6, and the substrate portion 2. Is formed with a large hole 11 (see FIG. 4C).

  Next, a resin 12 that can be integrally joined to the denture base 10 is filled in the hole 11, and the position is accurately aligned and meshed before solidifying, and the denture maintenance device 1 is placed in the resin 12 in the hole 11. The head 5, the concave ring 6, the O-ring 7 and the substrate 2 are pushed in (see FIG. 4D).

  The resin 12 used here is a resin material, and is a material having an appropriate strength and elasticity that is not harmful to the human body.

  When the denture base 10 and the dental prosthesis maintenance tool 1 are separated from each other, the retaining hole 13 with the O-ring 7 left is formed on the denture base 10 side, and all operations can be completed (FIG. 4 ( e)).

  Therefore, in the partial denture P of FIG. 7, when the tooth decay stopped by one or both of the fixing springs Q is painful and only the root can be used, the denture maintenance is performed on the root by the above-described method. A denture base 10 (not shown) provided with a new denture of a denture newly made by removing one or both fixing springs Q which can be engaged with the denture maintenance tool 1 is implanted. By forming the retaining holes 13, partial dentures can be handled.

  In addition, in the case of the total denture R as shown in FIGS. 3A, 3B and 3C, the drawing is for the upper oral cavity and shows the case where there are two roots on the upper side. 5 and FIG. 6, through the above-described method, that is, the process of FIG. 4, the denture maintenance device 1 is implanted on the root 8 side, and the retaining hole 13 in which the O-ring 7 is embedded is formed on the denture side. It is possible to attach and detach the denture easily.

  When the O-ring 7 is aged due to long-term use or the like, it can be easily removed from the denture retaining hole 13 and a new O-ring can be replaced and fixed.

The expanded side view which shows one Example of the maintenance tool for dentures concerning this invention Plan view of FIG. (A), (b), (c) A plan view, a bottom view, and a rear view when the denture maintenance device according to the present invention is used with the denture as a total denture on the upper side of the oral cavity. (A), (b), (c), (d), (e) Cross-sectional view and side view of sequential process showing use state of denture maintenance device Sectional drawing before use which expands and shows the relationship with the tooth root of FIG. Sectional view in use of FIG. Plan view showing a conventional example of partial denture (A), (b) The top view and bottom view which show the conventional side of the dentures above the oral cavity

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Denture maintenance tool 2 Board | substrate part 3 Supporting rod ４ 4 Pull-out prevention means 5 Head part 6 Concave ring part 7 O-ring 8 Root 9 Hole 10 Denture base 11 Hole 12 Resin 13 Latching hole P Partial denture Q Spring R Total Denture α Curved

Claims (3)

  A maintenance device for dentures that can be mounted and fixed on a tooth root and can be attached to a denture, having a support rod for inserting a tooth root at a lower portion of a base plate portion, and a concave ring portion at an upper portion of the base plate portion. A dental prosthesis maintenance tool comprising a prosthetic head part for mounting a denture, and a head part, a base plate part, and a supporting bar part made of metal integrally formed.   The denture is formed as a denture composed of one or more teeth, and a latching hole into which the head portion of claim 1 can be inserted is formed at a lower portion of the denture, and a concave ring portion of the head portion is formed. A denture maintenance device comprising an embedded O-ring that can be elastically engaged.   A denture maintenance device comprising: a denture maintenance device according to claim 1; and a denture having a retaining hole in which an O-ring according to claim 2 is embedded.

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