JPH0646996B2 - Standard tooth line indicator for complete denture production - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a standard dentition line indicator for producing a complete denture, which is mounted on a head and used to produce a complete denture according to a novel theory of stability of a complete denture.

[0002]

2. Description of the Related Art Conventionally, the production of a complete denture has no technical basis because the theoretical basis has not been clarified, and it is produced according to the experience and intuition of a dentist or dental technician for each patient. ing. As a result, even if a patient manufactures multiple complete dentures, a complete occlusal can not be achieved, painful temporomandibular joint disease occurs, the dentures become unstable and fall out, and a satisfactory complete denture is obtained. The reality is that you cannot do it.

[0003]

The reality of the manufacture of a complete denture is brought about because the stability theory of a complete denture has not been clarified or established, and it is not necessary to rely on the experience and intuition of dentists and dental technicians. In order to manufacture a stable complete denture based on a certain technical standard, it is necessary to establish a theory of stability of a complete denture that can obtain perfect occlusion.

The present invention is intended to solve such problems, and proposes a theory of stability of a complete denture obtained by anatomically studying the relational dimension and angle of each site by a real cranial specimen, An object of the present invention is to provide a standard dentition line indicator that can be used by being mounted on the head and used to easily and accurately determine an appropriate dentition line position in order to manufacture a complete denture based on such a theory. It is a thing. The purpose of the invention is to realize the production of a complete denture that can obtain a complete occlusion based on a certain technical standard, and to restore a healthy original state.

[0005]

First, the theory of stability of a complete denture, which is the theoretical background of the standard dentition line indicator for producing a complete denture of the present invention, will be described. First, in FIGS. 3 to 5, the position and movement of each site are anatomically analyzed by the skull sample (1). The movement of the lower jaw (3) with respect to the upper jaw (2) is regulated by the mandibular joint movement in which the joint head (5) of the mandibular joint (4) is opened and closed by being guided by the carcass (6) and the center of the joint head (5). When the nasal auditory line (7) is drawn by connecting the position and the central position of the nasal wing and the dentition line (8) is drawn on the side of the skull, according to the skull sample (1), the nasal auditory line (7) and the dentition line are drawn. Parallel to line (8),
The interval is about 35 mm. Further, the angle C between the rear end of the tooth line (8) and the center position of the joint head (5) is about 140 degrees, and the joint head (5) slides in the stroke D from the upper end to the lower end of the road (6). The angle E between the nasal auditory canal (7) and the stroke D is about 60 degrees. 4 and 5 show an upper jaw (2) having an upper jaw tooth line (8a) adapted to the tooth line (8), and a lower jaw (3) having a lower jaw tooth line (8b).
2 is a diagram showing the operation process of FIG. Here, the mandibular joint movement causes the lower jaw (3) to move the joint head (5) in the stroke D.
Is slid obliquely from the upper end to the lower end to open (A stroke), and axially moves at the lower end of the road (6) to open and close (B stroke). Therefore, the lower jaw dental arch line (8b) exhibits vertical vertical movement just before the occlusion in contact with the upper jaw dental arch line (8a).

On the other hand, it is known that a coordinated repetitive motion of the left and right mandibular joints (4) moves the mandible (3) forward, backward, leftward and rightward to draw a diagram called a curve of Spies, and a spherical disk with a radius of 4 inches. A curved plate (10) with a flat shape is provided. The occlusal surfaces of the upper and lower teeth appear on the disk of the Spies curve, and the Spies curve plate (10) is placed on the upper jaw (2).
And the lower jaw (3) occlude, a part of the cusp of all teeth always contacts the curved curve plate (10). Therefore,
Assuming the same spherical disk having two curves of speed (9) having an upper dentition line (8a) and a lower dentition line (8b) for the mandibular joint motion, the lower jaw (3) moves vertically upward. It is understood that the two discs are joined together and occlude, and condense at the point F (center point of the spherical surface) where the occlusal pressure exists, and if the occlusal pressure converges at the point F, the two discs are It will occlude completely and the adsorption will be stable.

When the above principle is applied to the production of a complete denture,
Obtain a tooth line (8) parallel to the nasal auditory canal line (7) and at an appropriate interval, and along this tooth line (8), a curve of the speed (9)
The upper jaw dental arch line (8a), the lower jaw dental arch line (8b)
By producing a complete denture, the healthy original condition will be restored. As a result, the occlusal pressure collects at point F,
With the same occlusal pressure in the anterior and posterior parts, the complete denture is absorbed and stabilized, and complete occlusion and chewing are reproduced. Then, the upper dentition line (8) is closer to the nasal auditory canal line (7) than the correct position.
If a) is wrongly set, the joint head (5) will axially move at the upper end of the carcass (6), the lower dentition line (8b) will press the anterior tooth part of the upper dentition line (8a), and The degree of vacuum is lost and the denture falls off. As described above, the complete denture that does not depend on the correct dentition line (8) is not stable because the occlusal pressure cannot be concentrated at the point F and a part of the denture is painful and a satisfactory occlusion cannot be obtained. Can not do it.

The present invention provides a standard dentition line indicator for obtaining an appropriate dentition line position in order to manufacture a complete denture based on the theory of complete denture stability. A bending member is attached to the lower part of the bending member, and a horizontal line of sight is provided at the lower end of the bending member. Then, a pair of left and right adjusting members are attached to the lateral sides of the head mounting band, and a U-shaped linear nasal auditory line indicator is hung below the adjusting member, and the nasal auditory line indicator is attached to the nasal auditory line. The adjusting member is configured to be adjustable so as to be aligned with. Then, a tooth row line indicator for instructing a standard tooth row line position in parallel below the nasal acoustic line indicator with a space of approximately 35 mm is attached to the lateral portion of the nasal auditory line indicator to be configured. It is a thing. Hereinafter, the configuration, action, and effect of the present invention will be specifically described with reference to the embodiments of the drawings.

[0009]

In the embodiment shown in the drawings, the standard tooth line indicator (20) is used by mounting it on the head, and the head mounting band (21) adjusts the diameter according to the size of the head. It is formed so as to be fixed. The bending member (22) is attached to the front surface of the head mounting band (21), and the bending member (2) is attached.
At the lower end of 2), the horizontal line of sight (23) is horizontally connected with the center fixed, and the bending member (22) is bent to adjust the height position. It is configured to align with the line of sight. Head wear band (2
1) A pair of right and left adjusting members (24) are attached to the lateral surfaces of the 1), and a U-shaped linear nasal auditory line indicator (25) is provided on the left and right side portions (25a) below the adjusting member (24). Can be installed by crossing over. The adjustment member (24) inserts and holds a side plate (25a) and a mounting plate (24a) rotatably attached to the head mounting band (21) with a screw (26),
It is formed by connecting the fixing plate (24b) fixed with the upper and lower screws (27). Then loosen the screw (26),
Rotate the mounting plate (24a) to adjust the height position of the nasal auditory line indicator (25), loosen the screw (27) to adjust the mounting angle of the nasal auditory line indicator (25), Nasal auditory line indicator (2
The adjustment member (24) is adjustable so as to accurately align 5) with the nasal auditory canal. A pair of concave tooth line indicators (28) are detachably attached to the left and right side portions (25a) of the nasal auditory line indicator (25) with screws (29), and the side portions ( 25a) and clamp the screw (2
9) is fixed by tightening, the lower side (28a) is set below the nasal auditory line indicator (25) so as to be positioned in parallel with an interval of approximately 35 mm, and the lower side (28a) is used as a standard tooth. It is configured to indicate the column line position.

[0010]

Next, the method of using the standard tooth line indicator (20) will be specifically described. The head mounting band (21) is mounted on the head by adjusting the diameter of the head mounting band (21), and the bending member (22) is adjusted to adjust the height position of the horizontal rod for internal line of sight (23) to the internal line of sight connecting both eyes. Then, the adjustment member (24) is adjusted to adjust the height position and the angle of the nasal auditory line indicator (25), and the nasal auditory canal connecting the central position of the joint head and the central position of the nasal wings when viewed from the side of the face. Align the line exactly and see from the front of the face the horizontal rod (2
3) Adjust and check the parallelism with the screws (26), (27)
To fix the nasal auditory line indicator (25). And
The dentition line indicator (28) is attached and fixed to the nasal auditory line indicator (25), and the standard dentition line position is indicated by the lower side (28a) parallel to the position 35 mm below the nasal auditory line. It In addition,
It is also possible to prepare a plurality of tooth line indicator (28) having different sizes with a distance from the nasal auditory line indicator (25) of around 35 mm, and to use them properly according to the size of the head.

Then, the temporary denture is inserted into the oral cavity, the incisal end of the central incisor is set to 1.5 to 2 mm below the lip, and the standard incisor to the posterior part is designated by the articulator on the lower side (28a). Finely adjust until it is parallel to the correct tooth line position. The speedy curve plate (10) is brought into contact with the tooth line thus obtained,
Artificial teeth are arranged so that the cusps of all teeth come into contact with each other, and a complete denture in which the occlusal pressure is concentrated at the point F is produced.

[0012]

The characteristic effects of the present invention are as follows. Adjust the adjustment member (24) to adjust the nasal auditory line indicator (2
Align 5) with the nasal auditory line, and use the nasal auditory line indicator (25)
By attaching the dental arch line indicator (28) to the lateral part (25a) of the, the standard dental arch line position can be indicated in parallel with the nasal auditory canal line, and it is appropriate based on the standard dental arch line position. It is possible to easily find the proper tooth line position. Then, the head wearing band (21) is fixed to the head, and the horizontal line of sight line (23) confirms the level of the nasal auditory canal line indicator (25) to accurately obtain the standard dentition line position. Is something that can be done.

Further, by obtaining the correct tooth line position with this standard tooth line indicator and producing a complete denture using the speedy curve plate (10), the occlusal pressure is gathered at the point F and complete. It is possible to produce an extremely stable complete denture so that it can be chewed into the mouth and chewed without pain, and the two discs will be attracted, and the healthy original condition will be restored, so that the face will be clean and revived. It has a practical effect.

Further, since the structure is simple and lightweight, there is no trouble in use, the operation is simple, and it is possible to rationally manufacture a complete denture without relying on experience and intuition. It realizes the production of complete and uniform dentures based on certain technical standards.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention mounted on a head.

FIG. 2 is a perspective view of an essential part of an embodiment of the present invention.

[Fig. 3] Side view of the skull specimen

FIG. 4 is an explanatory diagram of the operation of the mandibular joint as seen from the side of the skull.

FIG. 5 is an explanatory diagram of the operation of the mandibular joint as seen from the front of the skull.

FIG. 6 is a perspective view of a speedy curved plate.

[Explanation of symbols]

 21 Head-Worn Band 22 Bending Member 23 Horizontal Line of Sight 24 Adjusting Member 25 Nasal Hearing Line Indicator 25a Sides 28 Dental Line Indicator

Claims (1)

[Claims] 1. A bending member (22) is attached to a front surface of a head-mounted band (21), and an internal line-of-sight horizontal rod (23) for aligning the left and right internal lines of sight is provided at a lower end of the bending member (22).
A pair of left and right adjusting members (24) are attached to the lateral surfaces of the head-mounted band (21), and a U-shaped linear nasal auditory line indicator (25) is provided.
The adjustment member (24) so that the nasal auditory line indicator (25) is aligned with the nasal auditory line, and the nasal auditory line indicator (25) is adjusted to the position below the adjustment member (24). Material (25)
A tooth line indicator (28) for indicating the standard tooth line position in parallel with the space of approximately 35 mm is attached to the lateral portion (25a) of the nasal auditory line indicator (25). Standard dentition line indicator for manufacturing complete dentures.