JPH0147183B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This patent relates to a dental model shaping rubber frame.

Conventional work models made with rubber frames lacked a place to record the date, clinic name, and patient name, the contact area with the dental model was unclear, and the outer periphery had many rectangular shapes, which impeded work efficiency. It was inappropriate because of the influence it had on me.

The present invention has been made to eliminate this drawback, and one embodiment thereof will be described in detail below with reference to the drawings.

Reference numeral 1 indicates a rubber frame for shaping a dental model for one jaw, which is the first invention. The rubber frame 2 has a bottom part 2A made of flexible rubber and has a rounded part 2A' and a right-angled part 2A'' having a substantially curved planar shape, and a side wall 2B connected to the bottom part 2A. , said side wall 2B
The depth 2C of the dowel pin 3 is the same as the length 3A of the dowel pin 3, and a wing portion 2D is provided protruding from the inner surface upper edge of the portion 2B' of the side wall 2B corresponding to the rounded portion 2A'. The upper edge of the inner wall of the portion 2B'' corresponding to the right angle portion 2A'' in 2B has an opening 2H between it and the wing portion 2D, and a palate protrusion 2E is provided in a protruding manner. A record engraving display section 2F is engraved on the lower surface of 2E, and the outer peripheries of the lower surfaces of the wing section 2D and the palate section projection piece 2E are formed into curved surfaces 2D' and 2E' with rounded corners. , an uneven portion 2G is formed on the surface of the bottom portion 2A.

Reference numeral 1' denotes a rubber frame for shaping a full-jaw dental model, which is the second invention. The structure is such that a side wall 4B is surrounded by a bottom part 4A that is made of flexible rubber and has a rounded part 4A' and a straight part 4A'' shaped like a flat surface.
In the rubber frame 4 formed by consecutively arranging the side walls 4B
The depth 4C of the dowel pin 3 is the same as the length 3A of the dowel pin 3, and a wing portion 4D is provided protruding from the upper edge of the inner surface of the portion 4B' corresponding to the rounded portion 4A' of the side wall 4B. At the center of the upper edge of the inner wall of the corresponding part 4B'' to the linear part 4A'' in 4B, there is an opening 4I between the wing part 4D and the tongue-shaped palatal protrusion 4E is inserted into the corresponding part 4.
A record engraving display section 4F is engraved on the lower surface of the palate protrusion 4E, and the wing section 4D and the palate protrusion 4E are protruded toward the center. The outer periphery of the lower surface is a curved surface 4D′ with rounded corners.
4E', and an uneven portion 4G is formed on the surface portion of the bottom portion 4A. In the figure, 4H is a mark indicating the center. The above materials are made of 20% SBR styrene butadiene rubber and 80% NR natural rubber.
Although a JIS rubber with a hardness of 35 degrees was used, a rubber with a hardness of about 20 degrees to 60 degrees can be used as appropriate. Further, it is convenient to prepare large, medium, and small frames for the rubber frames 1 and 1', and to prepare a symmetrical rubber frame 1. In addition, the corresponding part 2B',
The inner wall of 4B' is tapered.

Next, how to use the product of the present application will be explained along with its effects.

Fill with plaster 5, cut into pieces, and make tooth model 6
After the plaster has hardened, remove the rubber frame. Then, this plaster 5 and tooth model 6 become a working model 7.

In this case A, the depths 2C and 4C of the side walls of the rubber frame are configured to be the same as the length 3A of the dowel pin 3, which saves time and effort. In other words, the conventional one has a depth of 2
Since C, 4C and length 3A do not match, the height of the finished tooth model varies and had to be adjusted after the model was manufactured, but in the case of the present application, this time and effort can be eliminated. No longer needed.

B: By making the material of the rubber frame softer, we were able to further improve workability and durability.

C Since the protrusions 2E and 4E are made large and the model 6 is placed in front of the protrusions, materials such as plaster can be saved.

D Since the uneven portions 2G and 4G are provided directly below the projections 2E and 4E, the dowel pin 3 is located at a location other than the uneven portion, so that the dowel pin 3 is placed on the lower surface of the plaster 5 formed by the uneven portion. When the model 7 is attached to the articulator using the formed uneven portion 5A, the pin 3 does not get in the way.

E Referring to Fig. 18, wing parts 2D, 4D
Since the curved surfaces 2D' and 4D' are provided, a rounded part 7A is formed between the plaster 5 and the tooth model, making it transitional, and as shown in FIG. Easy to put on and take off by pinching.

In this regard, in the conventional method, as shown in FIG. 19, a so-called post-adjustment is required in which the boundary portion 5A where the plaster 5 and the tooth model 6 contact is scraped off to form a rounded portion, but this is not necessary in the case of the present application.

In addition, conventional models do not have wing parts, so when a tooth model is attached to plaster, the plaster builds up on the surface of the tooth model, making it difficult to attach and remove the tooth model.However, in the present invention, wing parts are not included. Having one does not cause such harm.

F The corresponding parts 2B' and 4B' are tapered and chamfered, so that material can be saved and the finished model 7 can fit easily in the hands.

G If the tooth model has a mark 4H indicating the center, the center of the rubber frame can be identified, so the tooth model can be placed accurately.

H Since the record engraving display sections 2F and 4F are provided, a record column is formed on the bottom surface of the projections 2E and 4E, and necessary information such as the date, clinic name, patient name, etc. is entered in this column. can do.

Note that 1'' is another embodiment of the second invention 1'.This one has a substantially fan-shaped planar configuration.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view of the first invention, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line A-A in FIG. 1, and FIG. is a sectional view taken along the line B-B in FIG. 1, FIG. 5 is a sectional view taken along the line C-C in FIG. 2, FIG. 6 is a front view of the second invention, FIG. 7 is a plan view, and FIG. Right side view, Figure 9 is rear view,
Fig. 10 is a bottom view, Fig. 11 is a cross-sectional view taken along the line D-D in Fig. 6, Fig. 12 is a cross-sectional view taken along the line E-E in Fig. 6, and Fig. 13 is a cross-sectional view taken along the line F-F in Fig. 7. 14 is a sectional view explaining the usage state, FIG. 15 is a front view of another embodiment, FIG. 16 is a plan view, FIG. 17 is a right side view, and FIG. FIG. 19 is a longitudinal sectional view of a conventional tooth model, and FIG. 20 is a longitudinal sectional view of a conventional tooth model when it is pinched. 1...Dental model orthopedic rubber frame for one jaw, 1'...Dental model orthopedic rubber frame for full jaw.

Claims (1)

[Claims] 1. A rounded portion 2 made of flexible rubber.
Bottom part 2 where A′ and right angle part 2A″ are configured in a planar shape
In the rubber frame 2 having a side wall 2B arranged around the side wall A, the depth 2C of the side wall 2B is configured to be the same as the length 3A of the dowel pin 3, and the side wall 2B is
A wing portion 2D is protrudingly provided on the upper edge of the inner wall of the portion 2B' corresponding to the rounded portion 2A' in the side wall 2B, and the wing portion 2D is provided on the upper edge of the inner wall of the portion 2B'' corresponding to the right angle portion 2A'' on the side wall 2B. A palate part protrusion 2E is provided with an opening 2H between it and the part 2D, and a record engraving display part 2F is engraved on the lower surface of this protrusion 2E. The outer peripheries of the lower surfaces of the wing portion 2D and the palatal portion projection piece 2E are formed into rounded curved surfaces 2D' and 2E', and the bottom portion 2
A rubber frame for shaping a dental model, characterized in that a concavo-convex portion 2G is formed on the surface of A. 2 The rounded part 4 is made of flexible rubber.
A′ and the straight part 4A″ are configured in a planar shape, and the bottom 4
In the rubber frame 4 formed by side walls 4B arranged around the dowel pin 3, the depth 4C of the side walls 4B is
The side wall 4B is configured to have the same dimensions as the length 3A of the side wall 4B.
A wing part 4D is protrudingly provided on the upper edge of the inner wall of the corresponding part 4B' to the above-mentioned rounded part 4A' in the side wall 4B, and at the center of the upper edge of the inner wall of the corresponding part 4B'' to the straight part 4A'' of the side wall 4B. Above wing part 4D
An opening 4I is formed between the opening 4I and a tongue-shaped palate protrusion 4E is provided to protrude toward the center of the corresponding portion 4B',
A record engraving display section 4F is engraved on the lower surface of the palatal protrusion 4E, and the outer periphery of the lower surface of the wing portion 4D and the palatal protrusion 4E is a curved surface 4D' with rounded corners. , 4E', and an uneven portion 4G is formed on the surface of the bottom portion 4A.