JPH032257Y2 - - 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 tongue, lips, and cheeks in order to force it out of his mouth. The pressure from the tongue, lips, and cheeks is quite strong, and the use of instruments such as crowbars is undesirable as it may cause damage to the oral cavity, so the work is always time-consuming and requires a lot of effort. have to spend time. Also, sometimes you may not be able to do any work at all.

"Problems to be Solved by the Invention" The present invention was developed in view of the above points, and consists of attaching a bag body to the outer surface of the lingual side wall and/or the outer surface of the lip-buccal side wall of the impression tray body. By inflating the bag on the outer surface of the tongue side wall during the work, the flexibility of the bag relieves the tongue pressure, thereby preventing the tongue pressure from directly applying to the impression tray body. An object of the present invention is to provide an impression tray that can create a gap between the lips and the teeth when the bag on the outer surface of the lip and buccal wall is inflated.

``Means for Solving the Problems'' Therefore, the gist of the present invention is to provide a bag body on the outer surface of the lingual side wall and/or the outer surface of the lip-buccal side wall of the impression tray main body, which has a horseshoe-shaped or semicircular planar shape. an impression tray, characterized in that it is attached and connected to an air or liquid supply device for timely inflation of the bag.

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

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of the main body of the impression tray for the lower jaw, and FIG.
The figure is a plan view of the same, FIG. 3 is a sectional view taken along the line taken in FIG. 2, and FIG. 4 is an explanatory diagram of the operation.

In the figure, reference numeral 1 denotes a mandibular impression tray main body having a horseshoe-shaped planar shape, and a band-shaped grip handle 2 is integrally provided at the upper end of the portion corresponding to the front teeth of the lip-buccal wall portion 1b. It is being

However, in this embodiment, on the outer surface of the tongue side wall 1a and the lip-buccal side wall 1b of the impression tray main body 1,
It is constructed by attaching independent bag bodies 3 and 4, respectively.

The bags 3 and 4 are connected to a switching valve 7 through pipes 5 and 6, respectively, and the switching valve 7
is connected to an air supply device 9 through a pipe 8.

Although an air supply device is used in this embodiment, a liquid supply device may also be used.

Additionally, in the figure, 10 indicates an impression material such as soft wax, 11 indicates teeth of the lower jaw, 12 indicates teeth of the upper jaw, and 13 indicates the tongue.

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

At the start of the impression-taking operation, air is injected into the bag body 3 of the tongue side wall portion 1a of the impression tray body 1 by an air compressor serving as an air supply device 9 to inflate it. As a result, impression materials such as soft wax 10
When the impression tray body 1 is placed over the teeth 11 of the mandible, even if the patient tries to push the impression tray body 1 out of the mouth with the tongue 13, the tip of the tongue will hit the bag body 3. That pressure will be absorbed. Therefore, the tongue pressure is absorbed by the cushioning action of the bag body 3, and the pressure is not properly applied to the impression tray body.

Furthermore, at the end of the impression-taking operation, the switching valve 7 is switched to remove air and deflate the bag body 3.

In the illustrated embodiment, only the bag body 3 of the lingual side wall portion 1a of the impression tray body 1 is inflated. The bag body 4b of the portion 1b can also be inflated, in which case a gap can be created between the lips and the teeth. Furthermore, in the illustrated embodiment, the bags 3 and 4 are attached to both the tongue side wall 1a and the labial-buccal side wall 1b of the impression tray body 1, but if either one Of course, it is also possible to design the device so that it can be attached only to the device.

Further, although the above embodiment is an example of an impression tray body for the lower jaw, the same structure can be applied to the impression tray body 1' for the upper jaw as shown in FIG. . Note that the same members are given the same reference numerals and detailed explanations will be omitted.

``Effect of the invention'' Since the present invention has the above-mentioned structure and function, by inflating the bag on the outer surface of the tongue side wall of the impression tray body, the patient can hold the impression tray body with his/her tongue and move it out of the mouth. Even if this happens, the tongue pressure is absorbed by the cushioning action of the bag, and the pressure on the impression tray body can be alleviated.
As a result, impression-taking work for physically handicapped persons, etc., which conventionally required a great deal of labor and time, can now be carried out extremely smoothly. Further, by inflating the bag on the outer surface of the lip-buccal wall of the impression tray body, a gap can be created between the lips and the teeth, which has many practical benefits.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a perspective view of the main body of the impression tray for the lower jaw, Figure 2 is a plan view of the same, Figure 3 is a sectional view taken along the line in Figure 2, Figure 4 is an explanatory diagram of the operation, and Figure 5 is for the upper jaw. FIG. 2 is a perspective view of the impression tray body of FIG. 1, 1'... Impression tray body, 1a... Lingual side wall of the impression tray body, 1b... Lipobuccal side wall of the impression tray body, 2... Grip handle, 3, 4... Bag body, 5, 6, 8...Pipe, 7...Switching valve,
9...Air supply device.

Claims (1)

[Scope of utility model registration request] A bag is attached to the outer surface of the lingual wall and/or the outer surface of the lip-buccal wall of the impression tray main body, which has a horseshoe-shaped or semicircular planar shape, and is connected to an air or liquid supply device so as to inflate the bag in a timely manner. An impression tray characterized by: