KR102131709B1 - Oral Digital Reference - Google Patents

Abstract

The present invention relates to a device for measuring the vertical height of the oral cavity of an edentulous patient, which easily measures the vertical height between the mandible and the maxilla during the manufacturing process of the total denture and applies the measured vertical height values to a CAD/CAM simulator to enable the design and manufacture of the prosthesis based on the measured vertical height. The present invention comprises: a measuring device body inserted between the maxilla and the mandible in the oral cavity of a patient requiring vertical height measurement; a vertical height measurement sensor disposed on the measuring device body to measure a vertical height value, which is a spaced distance value between the maxilla and the mandible, which close up and down; and a control unit for controlling driving of the vertical height measurement sensor. The measuring device body comprises: a support base whose bottom surface is supported by the mandible; and a lifting base which is assembled in a lifting guide structure to the support base and supports the maxilla through an upper surface thereof and is configured to support the maxilla and mandible, with their height shortened while being pressed vertically by the maxilla and mandible.

Description

Oral Digital Reference Device for Oral Vertical Reference

The present invention relates to an apparatus for measuring the vertical height of the oral cavity, and more specifically, to measure the vertical height value between the mandible and the maxilla easily in the process of manufacturing the total denture, applying the measured vertical height values to the CAD/CAM simulator, On the basis of the measured vertical height value, it relates to a vertical height measurement device for the mouth of an edentulous patient that enables design and manufacture of a prosthesis.

To treat a damaged or lost tooth in dental treatment, treatment is performed with a prosthesis, and such a prosthesis is made while checking whether it fits well with a corresponding tooth, that is, an occlusal articulation so as to reproduce the jaw joint movement. Is used.

Briefly explaining the process for making the prosthesis, the doctor imitates the patient's oral cavity and accurately replicates the structure of the oral cavity and sends the model to the laboratory, and the laboratory uses a wax rim based on what the dentist saw. To produce.

At this time, the wax rim is manufactured by welding or filling wax to measure the vertical height of the teeth in the oral cavity (vertical distance between the upper and lower teeth, vertical dimension), and the dental formula (Retromolar Pad that is the reference point of the last denture base) It is produced according to the calculation of the positional relationship, etc.), it simply reproduces the height of the teeth inside the oral cavity using wax, and the positional relationship and vertical height of the condyl head, which is the axis of the mastication movement of the patient's upper and lower jaw It is not applied.

Therefore, in dentistry, after inserting the wax rims produced by the laboratory into the upper and lower jaws of the patient's mouth, the patient is repeatedly measured to close the mouth and open the mouth, measuring the patient's interstitial relationship with the naked eye, and the interstitial relationship If they did not fit, the wax rim was removed from the oral cavity and deleted (cut off) to adjust the patient's maxillary and mandibular maxillary relationship.

In other words, the wax rim only reproduces the tooth diameter on the gums of the patient's current state, and cannot even reproduce the intermaxillary relationship. However, the maxillary and mandibular relationship of the patient is over time in the case of patients with missing maxilla or mandible, or edentulous patients with both maxillary and mandibular teeth, missing or partial defects in the posterior teeth, or implants. As a result, sagging of the periodontal bone occurs, and thus the relationship between the maxilla is transformed.

In addition, in the case of a general adult, the structure of the teeth is often partially distorted while living for several decades, and thus it is different for each individual patient. Because it is not reproducible, the practitioner actually removes the wax rim and controls the intermaxillary relationship, that is, the vertical height of the teeth.

Thereafter, the removed and removed vertical rim wax wax is sent back to the laboratory to manufacture a prosthesis based on the wax rim, and the prosthesis thus produced is treated to the patient.

However, the method of manufacturing a prosthesis in this way inevitably causes malocclusion, so the model is sent to the laboratory, corrected and received again, and it is necessary to repetitively align the occlusion, so the operation is very cumbersome and the teeth are damaged for a long time. When the patient's gums undergo deformed degeneration due to living in a lost or lost state, it is inevitable to be an inappropriate procedure based on the physiological occlusion of the teeth.

The reason is that after inserting the wax rim into the patient's mouth, when measuring vertical height, doctors already use the O-ring test or neurological reaction test, etc. After setting the position, the vertical height is measured using the position as a reference point. In this state, since the removal of the wax rim is performed, the positional relationship between the condyl head, which is the axis of the authoring movement, and the wax rim is distorted. There is also a problem that the positional relationship of the mandibular teeth is also distorted.

In addition, the removal of the wax rim is manually adjusted while the left and right wax rims are removed while the doctor checks with the naked eye. Since this process is performed by the naked eye and manual work, the height of the left and right wax rims is deleted. The deviation occurs, and there is also a problem in that the inclination is generated in the front, rear direction or the left and right directions.

In addition, when the state of the teeth is distorted, the body shape itself is distorted, and adversely affects the human body. As a result of performing the procedure apart from the physiological occlusion, it adversely affects the patient's posture or overall health.

Therefore, in the production of a full denture, it is essential to elaborate and measure the vertical height, so it is important to secure the convenience of measurement along with minimizing the measurement error due to the measurement of the vertical height.

However, in the measurement process of the vertical fixation using the wax rim, the vertical height of the patient is measured in a form of repeating the correction process several times by generally dissolving or adding wax with an average value, thereby obtaining a numerical vertical height value. This is difficult, and inconvenience of repeatedly putting a wax rim in the patient's mouth is caused, and measurement errors according to the experience of the medical practitioner are inevitably caused, which has the limitation of performing repetitive measurements and corrections.

KR 100976043 B1

The object of the present invention, devised to dismiss the above problems, is to measure the vertical height between the mandible and the maxilla easily during the manufacturing process of the total denture, and apply the measured vertical height values to the CAD/CAM simulator to measure the measured vertical height. It is to provide an oral vertical height measurement device for an edentulous patient that enables design and manufacture of a prosthesis based on the height.

The above object is achieved by the following configuration provided in the present invention.

Vertical oral height measuring device of the oral cavity according to the present invention,

A meter body inserted between the maxilla and the mandible in the oral cavity of a patient requiring vertical height measurement;

A vertical height measuring sensor which is disposed on the measuring device main body and measures a vertical height value that is a distance between the maxilla and the mandible that closes up and down; And

It comprises a control unit for controlling the driving of the vertical height measurement sensor,

The main body of the measuring device includes a support base whose lower surface is supported on the mandible; It is assembled to the support base with a lifting guide structure, and comprises a lifting base that supports the maxilla through the upper surface,

It is characterized in that it is configured to support the maxilla and the mandible by reducing the height while being pressed vertically by the maxilla and the mandible.

Preferably, between the support base and the elevating base constituting the main body of the measuring device, a plurality of clearance protrusions are formed at equal intervals and an elastic stopper sheet; By providing a multi-stage elastic stopper made of elastic attachment pieces elastically adhered to the gap protrusions formed on the elastic stopper sheet, the lifting base and the support base vertically pressed by the upper and lower jaws are stepped by a multi-stage elastic stopper. It is configured to be elastically restrained.

More preferably, the vertical height measurement sensor measures the feedback speed of infrared rays or lasers that are received by irradiating a laser beam between the maxilla and the mandible supported by the body of the measuring instrument and spaced apart from the mandibular body. It consists of one or more optical sensor unit for measuring the vertical height of the.

As described above, the present invention is an apparatus for measuring the vertical height of a patient by replacing the conventional wax rim, focusing on the denture manufacturing process of the edentulous patient, and measuring the vertical pressure value and the baseline of the tooth arrangement as well as the vertical height value. It is possible.

And, without using a wax rim as in the prior art, it is disposed between the upper and lower jaw proposed in the present invention and the vertical height in the oral cavity through the vertical height measurement device of the oral cavity, which is a dedicated means for measuring the vertical height value between them. By measuring the value, the number of visits and time of the patient is reduced, and particularly, the number of prosthetic movements between the laboratory and the dentist can be minimized.

In addition, since the present invention measures vertical height values numerically, it is possible to design and manufacture a prosthesis based on the measured vertical height values in conjunction with a CAD/CAM simulator.

1 and 2 show the overall configuration of a vertical oral diameter measuring device of the oral cavity proposed as a preferred embodiment in the present invention,
Figure 3 shows a cross-sectional configuration of a vertical height measurement device of the oral cavity proposed as a preferred embodiment in the present invention,
FIG. 4 is an enlarged view of portion'A' in FIG. 3,
5 is a state diagram showing the vertical height measurement of the oral cavity by inserting the vertical height measurement device of the oral cavity, which is proposed as a preferred embodiment in the present invention, into the oral cavity.

Hereinafter, with reference to the accompanying drawings will be described in detail the vertical height measurement device of the oral cavity proposed as a preferred embodiment in the present invention.

1 and 2 show the overall configuration of a vertical oral diameter measurement device of the oral cavity, which is proposed as a preferred embodiment in the present invention, and FIG. 3 is a cross-section of the vertical oral height measurement device of the oral cavity, which is proposed as a preferred embodiment of the present invention. The configuration is shown, and FIG. 4 is an enlarged view of the'A' portion in FIG. 3, and FIG. 5 is a view of the oral cavity by inserting a vertical height measurement device of the oral cavity proposed in a preferred embodiment of the present invention into the oral cavity. It is a use state diagram showing the vertical height measurement.

The vertical oral diameter measuring device 1 of the oral cavity, which is proposed as a preferred embodiment in the present invention, is inserted into the oral cavity of a patient with edentulous teeth from which a tooth has been removed, and the vertical height between the maxilla and the mandible, that is, vertically measured, is numerically measured. Securing precision and convenience according to the measurement of the vertical height, and assigning and linking the numerically measured vertical height values to a CAD/CAM simulator, so that a prosthesis can be designed and manufactured based on the measured vertical height values. Is to do.

The vertical oral diameter measuring device 1 of the oral cavity is inserted between the maxilla and the mandible from which the teeth are removed, as shown in FIGS. 1 to 3, vertically pressurized by the upper and lower adjacent maxilla and mandible to extend vertically. The measuring instrument body 10 is adjusted; A vertical height measuring sensor 20 disposed on the measuring device main body 10 to measure a vertical height value that is a distance between the maxilla and the mandible, which closes up and down and closes; And a control unit 40 that controls the driving of the vertical height measurement sensor 20 and transmits the vertical height value measured through the vertical height measurement sensor 20 to the external terminal 100.

Here, the main body of the measuring instrument 10 is preferably built-in battery storing the starting current, it is also possible to configure to be applied from the outside as necessary.

In addition, the control unit 40 mounted on the meter body 10 is provided with a short-range communication unit, or a serial port unit, the vertical height and vertical pressure measured through the short-range wireless communication, or serial communication with the external terminal 100 It is configured to send values.

And, the main body 10 of the measuring rail is formed with a lifting rail (11a) and the support base 11 is supported on the lower surface of the mandible; It is arranged in a lifting structure on the lifting rail 11a of the support base 11 through the lifting guide 12a, and includes a lifting base 12 supported on the maxilla.

In addition, in this embodiment, the mandibular pad 14 made of an elastic material is disposed on the bottom surface of the support base 11, where the mandible and the maxilla are in contact with each other, and on the top surface of the elevating base 12, and The maxilla does not directly contact the support base 11 and the upper base 12 made of a hard plastic material, but is elastically contacted by the tandem pad 14 to be pressed.

Therefore, as shown in Figure 5, the instrument body 10 inserted between the maxilla (U) and the mandible (D) of the patient with the tooth removed is compressed vertically by the closing maxilla and mandible, and vertically through the maxilla and mandible By the pressure provided by the support base 11 and the elevating base 12 constituting the meter body 10 is gradually narrowing the gap, the overall height is shortened.

In addition, in the present embodiment, as shown in FIGS. 4 and 5, a multi-stage lifting stopper 15 is provided on the measuring instrument main body 10 that is vertically pressurized by the upper and lower jaw, and the measuring instrument main body 10 is multi-step raising and lowering. The height is gradually shortened by the stepwise contraction by the stopper 15, and the shortened state is continuously maintained.

In the present invention, as an example, between the support base 11 and the elevating base 12 constituting the measuring instrument body 10, a plurality of gap protrusions (15a-a) is formed of an elastic stopper sheet (15a) at equal intervals Wow; By providing a multi-stage stopping structure made of elastic attachment pieces 15b elastically adhered to the gap protrusions 15a-a formed in the elastic stopping sheet 15a, the lifting base 11 and the supporting base 12 ) Is not arbitrarily close, but must be kept close and close to each other only by the process of the patient pressing through the maxilla and mandible.

In the present embodiment, the gap protrusions 15a-a are spaced apart vertically at intervals of 0.1 mm on the elastic stopper sheet 15a, and the lifting base 12 is elastically raised and lowered at intervals of 0.1 mm. Is adjusted.

And, the vertical height measuring sensor 20 is disposed on the main body 10 to measure the distance between the maxilla and the mandible spaced apart at a set angle, infrared or reflected between the maxilla and the mandible by irradiating a laser, Or one or more optical sensor units 21 for measuring the irradiated infrared light by receiving a laser, or measuring the feedback speed of the laser to measure a digitized vertical height value between the maxilla and the mandible.

In the present invention, by placing the optical sensor unit 21 in the center portion of the measuring instrument body 10, and the left and right sides, respectively, the vertical height measurement sensor 20, the vertical height value of the central portion of the upper and lower jaw, both sides of the left and right Optical measurement of the vertical elevation value of the three points including the negative vertical elevation value is performed.

More preferably, in the present embodiment, at least one pressure measuring unit 31 that measures the vertical pressure between the upper and lower jaw applied between the support base 11 and the elevating base 12 to the meter body 10. A pressure measurement sensor 30 having a) is provided to enable simultaneous measurement of vertical pressure values applied to the maxilla and mandible, along with measurement of the vertical height between the maxilla and the mandible. Here, the pressure measuring unit may be a load cell or the like.

In the present embodiment, by placing the pressure measurement unit 31 in the center portion and the left and right sides of the meter body 10, respectively, the pressure measurement sensor 31 is a vertical pressure value of the central portion of the upper and lower jaw, and the right and left sides of the vertical Simultaneously measure the vertical pressure value at three points including the pressure value.

At this time, when the pressure above the set is measured by all the pressure measurement units constituting the vertical pressure sensor 20, the vertical pressure sensor is activated, and finally driving is activated to irradiate laser or infrared light through each optical sensor unit 21. By measuring the vertical diameter between the upper and lower jaw, the driving time is shortened and the current consumption is reduced.

In addition, the external terminal 100 provides vertical height values and vertical pressure values transmitted through the control unit 40 through the mounted display module 110 in real time to a measurement person in the form of a text, graph, or image. Also, the vertical height values and vertical pressure values are provided to the CAD/CAM simulator.

On the other hand, in the process of measuring the vertical height value and the vertical pressure value through the vertical height measurement device 1 of the oral cavity, a doctor who is a measurer inserts the measuring instrument body 10 between the patient's maxilla and the mandible, and then the patient When the maxilla and the mandible are spaced apart at a set angle, the vertical height measurement sensor 20 measures three points of vertical height, which is an interval between the maxilla and the mandible, and at the same time, the pressure measurement sensor 30 is between the maxilla and the mandible. Three vertical pressure values are measured.

According to this embodiment, the measurer quantifies the pressure state of the maxilla and the mandible, which is applied to the patient during the measurement process of the vertical height value, through the vertical pressure value provided in real time through the display module 110 of the external terminal 100. By checking it, it is checked whether it is a normal test or not, and through the deviation of the vertical measurement value measured by three points, the characteristics of the patient's jaw joint, the maxillary or mandibular body are identified.

Therefore, as shown in FIG. 5, the patient closes the maxilla and the mandible by assuming that the normal teeth are present while gradually closing the maxilla and the mandible through an interview process with a measurer, and supports the instrument body 10 in such a process. The base 11 and the elevating base 12 are stepwise approached through a multi-stage elevating stopper, and the height value is gradually reduced.

In addition, when the mandibular body 10, which is contracted by the pressurization, maintains a spaced apart space between the maxilla and the mandible at a predetermined interval, so that the patient approaches the maxilla and mandible in a comfortable state, perpendicular to the vertical altitude measurement sensor 20 The pressure measurement sensor 30 measures the vertical height values of the upper and lower jaw and vertical pressure values, and the controller 40 transmits the measured vertical height values and vertical pressure values to the external terminal 100.

Then, the external terminal 100 provides a numerical vertical height value to the doctor as a measurer through the display module 110, while the vertical height value and vertical pressure value are input to a CAD/CAM simulator (not shown). , CAD/CAM simulator can design and 3D print the prosthesis based on the input vertical elevation value and the vertical pressure value to produce the prosthesis according to the vertical elevation value of the patient.

In addition, in the present invention, a coarse lever portion 50 is provided to forcibly space between the support base 11 and the elevating base 12 of the measuring instrument body 10 disposed between the upper and lower jaw entering the oral cavity. .

Here, the lifting lever portion 50 is taken out of the support body 11 and the lifting base 12 by taking the body of the measuring instrument 10 out of the oral cavity when the patient excessively approaches the upper and lower jaw in the vertical vertical diameter measurement process of the patient Without the hassle of separately stretching, in a state in which the meter body 10 is inserted into the oral cavity, the operator forcibly lifts the elevating base 12 through the girder lever part 50 to re-measure the vertical height and vertical pressure values. This is a possible means.

The lift lever part 50 according to the present embodiment is disposed at an end of the lift shaft and a lift shaft 51 installed in a rotational structure between the support base 11 and the lift base 12, and the lifting guide of the lift base ( 12a), including a coarse cam 52 that supports the eccentric rotation structure, the coarse cam 52 by rotating on the coarse shaft 51 lifts and lowers the elevating guide 12a descending through the eccentric portion. The base 12 is physically lifted so as to be raised.

In this embodiment, by placing the steel ball (52a) in the eccentric portion of the lifting cam (52), the lifting cam (52) while rolling friction with the lifting guide (12a), the lifting base (12) fixed lifting guide ( 12a).

Therefore, when the patient is excessively close to the mandible and the mandible, the measurer rotates the rotating shaft 51 exposed in the front to eccentrically rotate the coarse cam 52, and lifts the elevating base 12 to lift the gap between them. It is possible to forcibly increase, and then the patient re-pressurizes the meter body 10 extended by the spacer lever part 50 through the maxilla and mandible to accurately re-measure the vertical height and vertical pressure values.

1. Vertical oral height measurement device
10. Meter body 11. Support base
11a. Lift rail 12. Lift base
12a. Lifting Guide 13. Instrument
14. Tanji pad 15. Multi-stage lifting stopper
15a. Elastic Stopping Sheet 15a-a. Gap
15b. Elastic shoulder piece
20. Vertical height measurement sensor 21. Optical sensor unit
30. Vertical pressure sensor 31. Pressure sensor unit
40. Control
50. Lift lever part 51. Rotating shaft
52. Geosang Cam 52a. Steel ball
100. External terminal 110. Display module

Claims (3)

A meter body inserted between the maxilla and the mandible in the oral cavity of a patient requiring vertical height measurement;
A vertical height measuring sensor which is disposed on the measuring body and measures a vertical height value that is a distance between the maxilla and the mandible, which closes up and down and closes; And
It comprises a control unit for controlling the driving of the vertical height measurement sensor,
The main body of the measuring device includes a support base whose lower surface is supported on the mandible; It is assembled to the support base with a lifting guide structure, and comprises a lifting base that supports the maxilla through the upper surface, characterized in that it is configured to support the maxilla and mandible by being shortened in height while being pressed vertically by the maxilla and mandible. Oral height measurement device. According to claim 1, Between the support base and the elevating base constituting the measuring body, a plurality of clearance protrusions are formed at regular intervals and an elastic stopper sheet; By providing a multi-stage elastic stopper made of elastic attachment pieces elastically adhered to the gap protrusions formed on the elastic stopper sheet, the lifting base and the support base vertically pressed by the upper and lower jaws are stepped by a multi-stage elastic stopper. Vertical oral diameter measurement device of the oral cavity, characterized in that configured to be elastically restrained. According to claim 1, The vertical diameter measuring sensor is measured by measuring the feedback speed of the infrared or laser, or infrared light received by irradiating a laser between the maxilla and the mandible supported by the body of the measuring instrument spaced apart from the mandibular body, the spaced apart maxilla and mandible Vertical oral height measurement device of the oral cavity, characterized in that consisting of one or more optical sensor unit for measuring the vertical height value between.

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