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False tooth attachment and method and spacer for fixing same

A technology for magnetic fixation and dentures, applied in fasteners, medical science, dentistry, etc., can solve the problems of magnetic fixation of dentures, etc., and achieve the effect of easy operation and assembly

Inactive Publication Date: 2006-04-05
AICHI STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Conversely, if the amount of self-setting adhesive applied is insufficient, the denture magnetic retainer cannot be firmly fixed to the denture bed. Therefore, proper application of self-setting adhesive requires skilled technology.

Method used

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  • False tooth attachment and method and spacer for fixing same
  • False tooth attachment and method and spacer for fixing same
  • False tooth attachment and method and spacer for fixing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] (The denture magnetic retainer of embodiment 1 constitutes)

[0105] As the denture magnetic retainer 2 of Embodiment 1 of the present invention. Such as Figure 4 As shown, it consists of a magnet 21 that is embedded in the root T of the tooth base T and is attracted by the magnetic attraction force, and a cover 22 that covers the magnet 21 on the side of the root panel 3 and is embedded in the denture 1. Inside the denture bed 12.

[0106] Here, the magnet 21, such as figure 1 As shown, it is composed of an annular magnet 24 intersecting the tooth height direction, a yoke cap 25 having a complex axisymmetric shape as a yoke portion, and an annular yoke cover 26 . A yoke cap 25 and a yoke cover 26 as yoke parts surround a ring magnet having a central hole, and a magnetic circuit is formed between the ring magnet 24 and the holding piece 32 on the base plate. In this way, a strong magnetic attraction can be exerted.

[0107] Adsorption surface 21a, from the centra...

Embodiment 2

[0174] (the denture magnetic retainer of embodiment 2)

[0175] The present invention is as the denture magnetic retainer 2 of embodiment 2, as Figure 8 As shown, except that the outer cover 22 covers the recesses 210 of the magnet 21 at predetermined intervals and a part of the space formed around the concave portion 210 of the magnet 21 is partially filled with the foam 4, and the others are the denture magnetic retainer 2 having the same structure as the first embodiment. The foam body 4 is composed of foam rubber or polyurethane rubber with independent cells.

[0176] In the denture magnetic retainer 2 of this embodiment, since the elastic body 4 will not damage the cushioning properties of the outer cover 22, the foam 4 composed of independent cells prevents external foreign matter from invading the space. Therefore, according to the denture magnetic retainer 2 of this embodiment, it has the effect of completely preventing foreign matter from invading the gap between th...

Embodiment 3

[0178] (The denture magnetic retainer of embodiment 3)

[0179] Denture magnetic retainer 2 of embodiment 3, such as Figure 9 As shown, the cover 22 covers the concave portion 210 of the magnet 21 at predetermined intervals to form a part of the gap, and the gap in the lateral direction is filled with the rubber elastic body 4. Others have the same structure as the first embodiment. Rubber elastic body 4 ' can use cushioning materials such as silicon rubber.

[0180] In addition to the effect of the above-mentioned embodiment 1, the denture magnetic retainer 2 of this embodiment has the effect of weakening the impact caused by the contact between the outer cover 2 and the magnet 1 due to the elastic compression effect of the rubber elastic body 4.

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PUM

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Abstract

A false tooth attachment (2) having a high resiliency with respect to a pressing force due to occlusion of teeth and giving a suitable sinking motion to a false tooth at the time of occlusion of teeth, comprising a magnet member (21) adapted to be attracted by a magnetic force to a root cap buried in a dental root, and a cap (22) covering the surface of the magnet member (21) which is on the opposite side of the surface thereof attracted to the root cap, the attachment being buried in a dental plate, the magnet member (21) having in the central portion of a rear surface (21c) thereof a recess (210), in which a projection (223) of the cap (22) of a hard resin is fitted in a contacting state, the projection (223) being elastically deformed and contracted due to an occlusion pressure, so that a circumferential portion (222) integrally molded with the body (22) of the cap (22) is moved slidingly on a side circumferential surface (13) of the magnet member (21) to cause the thickness of the false tooth attachment (2) to decrease, whereby the false tooth suitably sinks at the time of occlusion of the teeth to improve the resiliency and sense of use of the false tooth.

Description

technical field [0001] The invention belongs to the technical field of dentures (inserted teeth), in particular, belongs to the technical field of denture magnetic retainers embedded in tooth beds and attracted by magnetic attraction to fix dentures in the mouth. Background technique [0002] In the past, the denture magnetic retainer is placed on the adsorption plate (Keeper) made of soft magnetic material placed on the root panel of the patient's tooth root to fix the denture freely by magnetic attraction. [0003] However, with the usual magnetic retainer that attracts dentures by magnetic gas, when the occlusal pressure caused by occlusion occurs uniformly when chewing food, such as Figure 22 As shown, the sinking degree of the dentition (part B) is about ten times that of the root part (part A). That is to say, when the tooth meat portion compresses and sinks by 0.2 mm, the tooth root portion compresses and sinks only by 0.02 mm. Therefore, in this case, the pressure (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C13/235A61C8/00
CPCA61C13/235
Inventor 本藏义信荒井一生木村一诚
Owner AICHI STEEL
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