JP3771534B2 - Occlusal adjustment device when making dentures - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an occlusal adjustment device at the time of manufacturing a denture that can record the most stable occlusion of a denture and adjust the occlusion at the time of completion of a complete denture during a complete denture treatment in dental treatment.
[0002]
[Problems to be solved by the invention]
In order to complete a complete denture that functions in the denture treatment of dental treatment, the positional relationship of the lower denture with respect to the upper denture is important. In addition, for gingiva without teeth, not all gingival parts can withstand masticatory force (biting force), and pain is caused when a strong masticatory force is transmitted to a gingival part having low pressure resistance through a denture. In other words, the denture treatment is not completed just by completing (manufacturing) the denture, but it is important that the position of the upper and lower dentures and that each denture does not move when the lower denture moves simultaneously with the lower jaw, It is important that the direction of the masticatory force transmitted to the gingiva via the denture is defined, and that the vector for the denture's gingiva does not change even after the denture completes even with any denture movement. Therefore, a technique for defining a vector and a technique for mounting a completed denture by correcting an error generated in the manufacturing step when the denture is mounted are important.
[0003]
After losing teeth, the jaw bone below the gingiva is absorbed, the maxilla is absorbed forward and backward, and the mandible is often absorbed concavely. Therefore, when masticating with a denture, the maxillary denture tries to slide forward, and the mandibular denture moves like a cradle by the force vector applied to it.
[0004]
Because there is a function of biting, there may be a vector in which the upper and lower dentures do not move, but then the vector is synthesized just on the occlusal surface and the denture is moved in a direction that does not appear. The movement of this denture is shifted from the gingiva, and the intermolecular attractive force that makes the denture adsorbed to the gingiva does not work and the denture is easily detached, and the denture is precisely molded according to the irregularities of the gingiva. For this reason, this deviation causes a bump and causes pain.
[0005]
That is, the vector where the denture uniformly hits the gingiva coincides with the set vector when it bites, and the vector does not change during any movements of the front, back, left or right of the lower jaw. Can be configured (adjusted).
[0006]
This means the best occlusal state (denture installation) in which the vertical vectors between the upper and lower dentures match, regardless of how the upper and lower dentures move back and forth.
[0007]
In this way, the setting of the occlusal surface is important in order for the vectors in the vertical direction between the upper and lower dentures to coincide to obtain a combined vector, and to function without pain even if the dentures are pressed by the mastication force in that direction. At this time, in order to properly insert the denture between the upper and lower jaws, the occlusal surface should be able to be freely set by the operator, but in textbooks it should be set parallel to the surface connecting the nose wing and tragus. It is supposed to be. However, the vector synthesized by the masticatory force at the time of setting the standard occlusal surface is not necessarily the vector that applies the force to the gingiva that is most advantageous for pressure resistance for each denture and that does not shift the denture most. Therefore, the functional denture is completed by pressurizing with various vectors in the upper and lower directions in advance, defining a satisfactory vector in the upper and lower directions, and reproducing the vector by contacting the upper and lower dentures. Therefore, the vector of the vertical direction is matched by searching through various tests to find out which force vector direction is best in practice.
[0008]
However, in the conventional occlusal acquisition device at the time of denture production, since it is attached on the occlusal surface and used auxiliary, the direction of the vector cannot be changed as described above. It was difficult to obtain a composite vector by matching the vectors in the vertical direction, and it was difficult to obtain a composite vector. There is a problem that the best occlusion can not be obtained even after correction.
[0009]
[Means for Solving the Problems]
[0010]
The occlusal adjustment device at the time of manufacturing the denture according to the present invention is attached to the upper and lower dentures, and the vector direction changing disk is rotated left and right together with the rotating disk while being inserted between the upper and lower jaws. Since the degree of inclination of the surface with respect to the surface of the metal plate changes from front to back and left and right and the vertical vectors between the upper and lower dentures match, a composite vector is obtained, so it is easy to rotate the vector direction change disk with one installation The best denture can be put on without pain and pain.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
First, when explaining the occlusal acquisition method at the time of manufacturing the denture according to the present invention, the configuration of the occlusal adjusting device at the time of manufacturing the denture used for the denture will be described.
[0012]
FIG. 1 is a top view of a lower denture at the time of occlusal acquisition, and FIG. 2 is a cross-sectional view taken along the line II in FIG. 1 and 2, 1 is a lower jaw denture, 2 is a metal plate fixed to the occlusal floor 3 of the lower jaw denture 1, and has a surface 2a configured parallel to the virtual occlusal surface of the lower jaw. Reference numeral 4 denotes a magnet vector direction changing disk such as a neodymium magnet that is rotatably fixed to the surface 2 a of the metal plate 2, and 5 denotes rotation that is attracted to the vector direction changing surface 4 a of the vector direction changing disk 4 by the magnetic force. Reference numeral 6 denotes a center hole of the rotating disk 5, and 7 denotes an occlusal high-diameter adjusting disk interposed between the vector direction-changing disk 4 and the metal plate 2.
[0013]
The metal plate 2 is made of stainless steel with a magnet, and is fixed to the biting wax portion of the occlusal floor 3 by heating with a flame. Several types of vector direction changing disks 4 are prepared in which the angle of the vector direction changing surface 4a is different from 0 °, 10 °, 20 ° and 30 ° with respect to the surface 2a of the metal plate 2. The rotating disk 5 is made of plastic and has a stainless steel plate with a magnet on one side contacting the vector direction changing surface 4a. The occlusal high-diameter adjusting disk 7 is made of a stainless steel disk with a magnet and is interposed for adjusting the distance to the upper jaw at the time of manufacturing a denture, and may not be inserted.
[0014]
FIG. 3 is a view of the upper denture from the bottom when the occlusal is obtained, and FIG. 4 is a cross-sectional view taken along the line roll of FIG. In FIGS. 3 and 4, 8 is a maxillary denture, 9 is a disk fixed to the occlusal floor 10 of the maxillary denture 8, and has a surface 9a configured parallel to the virtual occlusal surface of the maxilla. 11 is a core shaft portion (pin) projecting from the center of the surface 9a of the disk 9, 12 is a hole for adjusting the height of the protrusion of the core shaft portion 11, and 13 is the disk 9 fixed with a modeling compound ( This is a hole for heat fusion.
[0015]
The disk 9 is made of stainless steel without magnets and is fixed (heat-sealed) to the occlusal floor 10 through holes 13 with a modeling compound. The surface 9 a of the disc 9 is maintained in a parallel state with respect to the vector direction changing surface 4 a of the vector direction changing disc 4 by fitting the core shaft portion 11 to the center hole 6 of the rotating disc 5. Yes. Note that the height of the protrusion of the core shaft portion 11 can be adjusted by inserting tweezers into the hole 12 and turning the core shaft portion 11.
[0016]
FIG. 5 is a front view showing only the occlusal adjustment device at the time of denture production, and FIG. 6 is a side view of FIG. 5 viewed from the right. In each figure, the same or corresponding parts as those shown in FIGS. The same reference numerals are given and the description is omitted.
[0017]
Next, by using the occlusal adjustment device of FIGS. 1 to 6 described above, the occlusal acquisition method and the operation of the occlusal adjustment device during the production of the denture according to the present invention will be described.
[0018]
As a pre-preparation, after fixing the metal plate 2 to the occlusal floor 3 of the lower denture 1, a rotating disk 5 and an occlusal high-diameter adjusting disk 7 are attached to the metal plate 2 using a vector direction changing disk 4. Further, the disc 9 is fixed to the upper jaw occlusal floor 10.
[0019]
The lower jaw occlusal floor 3 is fitted to the lower jaw, the upper jaw occlusal floor 10 is fitted to the upper jaw, the core shaft portion 11 is fitted to the center hole 6, and the occlusal adjusting device is united as shown in FIGS. In this state, the front-rear and left-right positional relationships between the occlusal floor 3 of the lower denture 1 and the occlusal floor 10 of the upper denture 8 are roughly determined by provisional alignment that has already been carried out in accordance with the usual law. At this time, the vector direction change disk 4 starts with the angle of the vector direction change surface 4a being 0 degrees, and the errors of 10 degrees, 20 degrees, and 30 degrees with different angles are minimized. Select (determine) and install.
[0020]
The fact that the vector direction changing surface 4a of the vector direction changing disk 4 is selected (angled) at the time of provisional alignment will be described in a little more detail.
When it is considered that the movement of each occlusal floor 3, 10 is small (small distortion) by looking at the state (shape) of the upper and lower jaws, the vector direction change disk 4 having the vector direction change surface 4 a with an angle of 0 degrees is used. use. Then, in the occlusal state, the surface 9a of the disk 9 with respect to the surface 2a of the metal plate 2 is almost parallel with little vertical displacement at the front / rear / left / right positions. Can be combined. That is, it is possible to obtain occlusion in a state close to perpendicular to the upper and lower gingival surfaces.
If the movement of each occlusal floor 3 and 10 seems to be large (large distortion) by looking at the state (shape) of the upper and lower jaws, an angle is selected according to the size and the vector direction having that angle is changed. Disc 4 is used. Then, in the occlusal state, the surface 9a of the disk 9 is tilted up and down by the angle at the front and rear, left and right positions with respect to the surface 2a of the metal plate 2 so that the combined vector is obtained. Temporary alignment with little error is possible. That is, it is possible to obtain occlusion in a state close to perpendicular to the upper and lower gingival surfaces as described above.
[0021]
That is, there are individual differences in the angle of the surface 9a of the disk 9 with respect to the surface 2a of the metal plate 2 due to the shape change of the upper and lower jaws, so that the vector direction changing disk 4 is selected by selecting the angle of the vector direction changing surface 4a accordingly. While selecting, the error should be as small as possible.
[0022]
At that time, if not necessary, the occlusal high-diameter adjusting disk 7 is removed to determine and adjust the occlusal height. If necessary, the fixing position of the vector direction changing disk 4 can be shifted in the longitudinal direction (left and right direction) of the metal plate 2 to change the temporary alignment accuracy between the upper and lower dentures 1 and 8.
[0023]
Next, when the vector direction changing disk 4 is turned to the left or right while performing the occlusion trial, the rotating disk 5 and the occlusal high diameter adjusting disk 7 are integrated together with the vector direction changing disk 4 around the core shaft portion 11. For example, when the vector direction changing disk 4 is turned to the left in FIG. 5, the vector direction changing surface 4 a becomes a slope that falls to the right so that the right side becomes lower as indicated by a two-dot chain line X. On the contrary, when the vector direction changing disk 4 is turned to the right, the vector direction changing surface 4a becomes a slope with a lower left side so that the left side becomes lower as indicated by a two-dot chain line Y. The surface 9a also changes along the two-dot chain lines X and Y, and the direction and direction of the vertical vector between the upper and lower dentures 1 and 8 change.
[0024]
Thus, when the occlusal adjustment is performed by rotating the vector direction changing disk 4 left and right to shift the surface 9a of the disk 9 up and down at the left and right front and back positions with respect to the surface 2a of the metal plate 2, the upper and lower dentures 1, 8 It is possible to find a combined vector in which the vectors in the vertical direction coincide with each other, so that the best denture can be mounted.
[0025]
【The invention's effect】
[0026]
According to the present invention, the occlusal adjustment device is attached to the occlusal floor on the upper and lower jaw denture side, and the vector direction changing disk is turned left and right together with the rotating disk while being inserted between the upper and lower jaws, thereby to Since the degree of inclination of the metal plate to the front, back, left and right changes and the vertical vectors between the upper and lower dentures match to obtain a composite vector, a simple operation of turning the vector direction changing disk with a single attachment Therefore, the best denture can be worn without pain.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention and is a view from above of a lower denture at the time of occlusal acquisition.
FIG. 2 is a cross-sectional view taken along the line II in FIG.
FIG. 3 is a view of an upper denture from the bottom when occlusal acquisition is performed as in FIG. 1;
4 is a cross-sectional view taken along a line roll in FIG. 3;
FIG. 5 is a front view showing only the occlusal adjustment device at the time of denture production in FIGS.
6 is a side view of FIG. 5 as viewed from the right. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mandibular denture 2 Metal plate 2a Metal plate surface 3 Mandibular occlusal floor 4 Vector direction change disk 4a Vector direction change surface 5 Rotating disk 6 Center hole 7 Occlusal high-diameter adjustment disk 8 Maxilla denture 9 Disk 9a Disk Surface 10 Upper occlusal floor 11 Core shaft 12 Hole 13 Hole

Claims (3)

  A metal plate which is fixed to the lower denture side occlusal floor and has a surface which is configured in parallel with the virtual occlusal surface of the lower jaw near the center thereof, and is rotatably fixed to the surface of the metal plate by the magnetic force. A magnet vector direction changing disk that forms an angled vector direction changing surface, and a circle that is fixed to the upper denture occlusal floor and has a surface that is parallel to the virtual upper occlusal surface near the center A plate, a core shaft portion provided on the surface of the disk, and fitted to the core shaft portion to be rotatably mounted on the disk, while being fixed to the vector direction changing disk by its magnetic force. When the complete denture is mounted, the vector direction changing disk is rotated left and right together with the rotating disk to change the degree of inclination of the surface of the disk with respect to the metal plate surface. Occlusal adjustment when wearing dentures Occlusal adjustment device during denture fabrication, characterized in that the Migihitsuji.   2. The occlusal adjustment device for manufacturing a denture according to claim 1, wherein an occlusal high-diameter adjustment disk is interposed when the vector direction changing disk is fixed to the surface of the metal plate by a magnetic force.   The angle of the vector direction change surface of the vector direction change disk is configured by one each of 0 degree, 10 degrees, 20 degrees, 30 degrees, etc., when producing a denture according to claim 1 or 2 Occlusal adjustment device.

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