JPH032256Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an impression tray used in dentistry to take an impression with an impression material.

``Prior Art'' When taking an impression using an impression material such as soft wax in dentistry, it is necessary to prevent the impression tray body filled with the impression material from shaking when placed over the teeth. However, for patients with low intelligence or low consciousness, such as physically disabled patients,
Because of the discomfort caused by the foreign object, the patient tries to forcefully push out the impression tray with his/her tongue in order to remove it from the mouth. The pressure of the tongue is quite strong, and using tools such as crowbars may damage the tongue, which is undesirable, so the work is always laborious and requires a lot of effort and time. No. Also, sometimes you may not be able to do any work at all.

"Problems to be solved by the invention" The present invention was created in view of the above points, and by providing a tongue pressure relief body on the outer surface of the tongue side wall of the portion corresponding to the front teeth of the impression tray body, It is an object of the present invention to provide an impression tray which can alleviate the tongue pressure applied to the impression tray body and thereby solve the above-mentioned problems.

``Means for Solving the Problems'' The gist of the present invention is to provide a tongue pressure relief body on the outer surface of the lingual side wall of the portion corresponding to the front teeth of the impression tray body, which has a horseshoe or semicircular planar shape. An impression tray is provided.

Hereinafter, the present invention will be described in more detail with reference to illustrated embodiments.

FIG. 1 is a perspective view of the first embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional view taken along the line in FIG.
FIG. 4 is an explanatory diagram of the operation.

In the figure, reference numeral 1 indicates an impression tray main body having a horseshoe-shaped planar shape, and labial side wall portion 1a of a portion A corresponding to the anterior teeth.
A band-shaped grip handle 2 is integrally provided at the upper end of the handle.

However, the present invention is characterized in that a tongue pressure relief body 3 is provided on the outer surface of the tongue side wall portion 1b of the portion A corresponding to the front teeth of the impression tray body 1, and in this embodiment, As the tongue pressure relief body 3,
The impression tray body 1 includes a tongue tip guide plate 3' extending obliquely downward toward the tongue from a substantially central portion in the height direction on the outer surface of the tongue side wall portion 1b of the impression tray body 1.

The tongue tip guide plate 3' guides the tongue tip into the impression tray main body 1 when trying to push out the impression tray with the tongue.
This prevents the impression tray body 1 from receiving proper tongue pressure.

Additionally, in the figure, 4 indicates an impression material such as soft wax, 5 indicates teeth of the lower jaw, 6 indicates teeth of the upper jaw, and 7 indicates the tongue.

"Operation" Next, the operation of the above embodiment of the present invention will be explained.

When filling the impression material 4 such as soft wax and placing the impression tray body 1 over the teeth 5 of the lower jaw, if the patient tries to push the impression tray body 1 out of the mouth with the tongue 7, the tip of the tongue will touch the tongue tip guide plate. 3' to the upper side of the impression tray body 1, so that tongue pressure is not properly applied to the impression tray body 1.

Next, a second embodiment of the present invention shown in FIG. 5 will be described.

The difference between this embodiment and the first embodiment is that the tongue pressure relief body 3 is replaced by the tongue tip guide plate 3'.
The central part is bent in a zigzag shape, and a wire 3'' is stretched horizontally on the outer surface of the tongue side wall part 1b of the part A corresponding to the anterior teeth part of the impression tray main body 1,
The elasticity of the wire 3'' is used to relieve tongue pressure.

That is, when the tongue tip is about to stick out, the tip of the tongue hits the wire 3'', and the tongue pressure is absorbed by the elasticity of the wire 3'', so that the tongue pressure is not properly applied to the impression tray body 1. be.

Incidentally, since the other configurations are the same as those of the first embodiment, the same members are given the same reference numerals and detailed explanations will be omitted.

"Effect of the invention" The present invention has the above-mentioned structure and function, and by providing a tongue pressure relief body on the outer surface of the tongue side wall of the impression tray body in the area corresponding to the front teeth, the tongue pressure can be properly reduced in the impression tray. This can eliminate the need to cover the body. As a result, impression-taking work for people with physical disabilities, etc., which previously required a great deal of effort and time, is now possible.
I was able to do it extremely smoothly.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the first embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional view taken along the line in FIG.
FIG. 4 is an explanatory diagram of the operation, and FIG. 5 is an explanatory diagram of the second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Impression tray main body, 1a... Labial side wall part of the impression tray main body, 1b... Lingual side wall part of the impression tray main body, 2... Grip handle, 3... Tongue pressure relief body,
3'...Lingual tip guide plate, 3''...Wire bent in a zigzag shape at the center.

Claims (1)

[Scope of utility model registration request] An impression tray characterized in that a tongue pressure relieving body is provided on the outer surface of the tongue side wall of a portion corresponding to the front teeth of the impression tray main body having a horseshoe-shaped or semicircular planar shape.