JP2001112788A - Bite taking apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve technical problems in bite taking so as to prevent incomplete bite taking causing problems common between patients using a denture such as pain due to a denture, difficulty in biting, and slackness of a denture in a mouth. SOLUTION: This bite taking apparatus is constructed of three components consisting of a lower plate 1, an upper plate 2, and a pin 3, and bite taking is carried out through a bite rim upper jaw 4, a bite rim lower jaw 5. Alternatively, a bite taking apparatus is constructed of two separation type components consisting of a lower plate 1 and an upper plate 2, and bite taking is carried out through a bite rim upper jaw 4 and a bite rim lower jaw 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument used for occlusal acquisition, which is one of the most important operations in the production process of a dental prosthesis and the production of a prosthesis related to the technical work of a dentist. It is.

[0002]

2. Description of the Related Art Prosthesis of a complete denture for an edentulous patient requires occlusal acquisition (horizontal and vertical jaw positions and occlusal height). In this conventional technique, an occlusal ridge (brazing embankment) is first manufactured with reference values, and the occlusal surfaces of the upper and lower occlusal ridges are brought into direct contact with each other by attaching them to the upper and lower jaws in the oral cavity of each patient. Thus, the occlusal state of the patient is visually determined from outside. It is necessary to diagnose malocclusion in a state close to the guess from the outside with the mouth at the time of occlusion closed. Based on such vague eye measurement data, the occlusal ridge is deleted, and correction work such as addition is performed. The method of acquisition is taken. In addition, in this method, where the occlusal surfaces of the upper and lower occlusal ridges are brought into direct contact, the degree of occlusal pressure during occlusion, the variation in the degree of absorption at each site of the alveolar ridge, and the use of uneven occlusal ridges Due to various instability factors, such as the fact that the mucous surface of the occlusal ridge is partially lifted up from the mucous surface of the alveolar ridge, this phenomenon is one of the factors that make it difficult to obtain accurate occlusal acquisition . This is a serious technical flaw. The results of occlusal harvesting performed under these conditions should be inferred, and despite the need to repeat these complicated tasks, this method not only saves time but also It is almost impossible to establish an accurate occlusal acquisition backed by accurate figures. The fact is that such irrational occlusion acquisition techniques have become widespread and popular in the dentist industry, and most clinic rooms are currently using this method to treat patients. .

[0003]

The problem to be solved by the present invention is to improve the presently universally inaccurate and inefficient technique of bite acquisition itself. Until now, there has been no instrument to perform this occlusion acquisition, which is considered to be the most important in the process of denture production, very accurately, quickly and in a short time.

[0004]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described with reference to the drawings. In order to fend off the tongue with an outer shape similar to that of a dental arch as shown in FIG. A bulge of an appropriate height (approximately 5 mm) is directed upward (refer to FIG. 3), and a dome of an appropriate size (for example, a diameter of 8 to 10 mm and a height of approximately 2 to 3 mm) is provided substantially at the center of the midline. Make a mold bulge and make a small plate with a small hole to insert a pin at the top of this dome, and a little larger to fit over the semi-elliptical bulge of the lower plate with a contour similar to the dental arch Put a semi-elliptical bulge (do not make a dome) on the upper plate and drill the pins in the same position as the lower plate and drill holes to pass the pins into the lower plate and the upper plate Connecting to. At this time, a gap of 2 to 3 mm equal to the height of the dome is formed between the lower plate and the upper plate. The upper and lower plates can be tilted 360 degrees in any direction within the range of the gap of 2 to 3 mm with the vertex of the dome as a fulcrum. The device for use in the operation of bite acquisition according to claim 1, wherein the change in the gap between the upper and lower plates is used.

[0005] The integrated occlusal grabber and the shape described above,
The method of use is basically the same, but in order to accurately grasp the change in the jaw position caused by the movement of the planar position of the lower jaw in front and rear and left and right at the time of occlusion, a separate type without using pins 3. The apparatus according to claim 2, wherein the apparatus has a structure as described above and is capable of performing a planar movement in addition to a tilting movement with a vertex of the dome as a fulcrum.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method of using the device of the present invention will be described with reference to the drawings. First, a flat portion around the dental arch shape of the upper plate shown in FIG. 2 was heated to an appropriate temperature using a torch, and was manufactured in advance with reference values (refer to FIG. 1). And wait for it to cool. Then, the maxillary occlusal ridge on which the occlusal capturing device is set is mounted in the oral cavity of the patient. The occlusal ridge mandible is then placed in the patient's mouth. After completing the preparation work up to this point, at the beginning, bite lightly and gradually to an appropriate occlusal pressure, maintain the occlusal state, and place the occlusal extractor between the upper and lower plates. The user looks into the patient's mouth from the gap provided in the above, and confirms the front, rear, left and right inclination of the lower plate.

At this time, if the existence of a gap over the entire circumference between the upper plate and the lower plate can be confirmed, there is no need to delete the occlusal ridge and correct the work such as adding. It is not necessary to adjust the gap to be uniform, and it is sufficient if the gap is within the range of 2 to 3 mm. By providing the fulcrum of the tilting movement at almost the center of the occlusal ridge, the pressure transmitted from the upper jaw during occlusion is evenly distributed to the lower jaw of the occlusal ridge and closely adheres to the mucous membrane of the lower alveolar ridge. In order to establish the positional relationship of the lower jaw with respect to the cranial position, it is essential that the mucous surface of the lower alveolar ridge and the mucous membrane of the occlusal ridge are in close contact evenly.
In this work performed using the occlusal grabber of the present invention, even if an occlusal ridge having an unequal occlusal surface is used, this error is within the inclination of the gap as long as it is within the range of this gap. It is possible to easily create an ideal condition that is absorbed and evenly adhered to the alveolar ridge mucosal surface. For this reason, it is not necessary to repeat the work of correcting the occlusal ridge, and the time spent for this work is greatly reduced. This is one of the great features of the present invention.

In addition, if the lower plate is too inclined due to the error of the occlusal surface of the lower jaw of the occlusal ridge, and if the lower plate is in partial contact with the upper plate, an accurate occlusal height cannot be ensured. The lower jaw is taken out of the oral cavity, and the portion in contact with the lower jaw is appropriately deleted and corrected so as to fall within the range of the inclination of the gap. Then, the patient is returned to the oral cavity of the patient again, and the state at the time of the occlusion is reproduced, and it is confirmed whether or not a gap over the entire circumference between the upper jaw and the lower jaw can be secured. At this time, it is not necessary to adjust the gap evenly.

Next, when the existence of the gap is confirmed, the state at the time of the occlusion is maintained, and an appropriate amount of a quick-hardening substance such as xantano is injected between the lower plate and the upper plate, and is waited for hardening. Then, the occlusal extractor with the upper and lower plates fixed is taken out of the oral cavity with the occlusal ridge set in the upper jaw, and the occlusal ridge lower jaw is subsequently taken out to reproduce the intraoral situation at the time of occlusion outside the oral cavity. Perform the measurement to complete the work of bite acquisition. This work method of bite acquisition, in which the situation in the oral cavity at the time of occlusion is fixed and taken out and reproduced as it is outside the oral cavity, is an important point of the present invention, and is intended.

[0010] Occlusal acquisition is also performed on a separate type occlusal extractor in the same operation procedure as that of an integrated occlusal extractor, but by moving the lower jaw back and forth and left and right in a planar position during occlusion. In some cases, it is necessary to accurately understand the change in jaw position at any position of the patient,
In order to enable a planar movement in addition to the tilting movement, the use of a pin was eliminated to provide a separated structure. As a result, it became possible to fix the jaw position at an arbitrary position at the time of occlusion and take it out, reproduce it outside the oral cavity, and make a diagnosis.

[0011]

According to the present invention, it has become possible to quickly and quickly perform accurate occlusal acquisition, which is extremely difficult with conventional occlusal acquisition techniques. Until now, this work alone required about 30 minutes, but in clinical cases using the occlusal extractor of the present invention, about 10 minutes is sufficient in terms of time, and this method The operation of bite acquisition was less individualized by the practitioner, and surprisingly stable and extremely accurate results of bite acquisition were obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a state of an occlusion by setting an occlusal extractor on an occlusal ridge upper jaw and pressing an occlusal ridge lower jaw on a model.

FIG. 2 is a plan view of the present invention.

FIG. 3 is a front view of the present invention as viewed from behind.

FIG. 4 is a side view of the present invention.

[Description of Signs] Lower plate Upper plate Pin Occlusal ridge Maxillary Occlusal ridge Lower jaw

Claims (2)

[Claims] 1. A tongue-shaped semi-elliptical bulge of an appropriate height (approximately 5 mm) is provided upwardly in order to fend off the tongue with an outer shape similar to that of a dental arch. Suitable size (for example, about 8 to 10 mm in diameter,
A dome-shaped bulge with a height of about 2 to 3 mm) and a lower plate with a small hole for driving a pin into the top of the dome, and a half of the lower plate with an outer shape similar to that of a dental arch Place a slightly larger semi-elliptical bulge (do not make a dome) so that it completely covers the elliptical bulge, stack the hole with the upper plate that has been drilled to pass the pin in the same position as the lower plate, and drive the pin in. Connect plate and top plate. At this time, a gap of 2 to 3 mm equal to the height of the dome is formed between the lower plate and the upper plate. Each of the upper and lower plates can be tilted 360 degrees in any direction within the height of 2 to 3 mm with the vertex of the dome as a fulcrum. An occlusal acquisition device in a denture manufacturing process using the change in the gap between the upper and lower plates. 2. The lower plate and the upper plate of the occlusal grabber according to claim 1 have the same shape as the lower plate and the upper plate. Isolated occlusion acquisition device.