KR20200017565A - Denture tray using 3d printing technic and denture manufacturing mehtod therefor - Google Patents

Abstract

The present invention relates to a denture manufacturing tray using a 3D printing technology and a denture manufacturing method using the same, and more specifically, to a denture manufacturing tray using a 3D printing technology, which obtains a preliminary impression, forms a plaster cast for the same, and 3D-captures the same to manufacture a denture manufacturing tray by using a 3D printer to be precisely put on an upper part of the plaster cast, and has a cross beam capable of inserting a screw to measure a vertical dimension; and a denture manufacturing method using the same. According to a preferable embodiment of the present invention, the denture manufacturing tray using a 3D printing technology and the denture manufacturing method using the same can minimize errors because a manufacturing process shuttling between a dental clinic and a dental technical laboratory in a complete denture manufacturing process is reduced by at least two times. The present invention can manufacture a complete denture more accurately by using 3D scanner and printer, has a measuring stand in a denture manufacturing tray and can measure a vertical dimension easily and conveniently by upper and lower jaw bottom surfaces precisely mounted on gums of a patient. In addition, the number of patient′s visits to a dental clinic at least two times can be reduced to minimize stress caused by a dental clinic visit.

Description

Denture production tray using 3D printing technology and denture manufacturing method using same {DENTURE TRAY USING 3D PRINTING TECHNIC AND DENTURE MANUFACTURING MEHTOD THEREFOR}

The present invention relates to a denture manufacturing tray using a 3D printing technology and a denture manufacturing method using the same. More specifically, after taking a preliminary impression, a gypsum model is formed thereon and 3D photographed to accurately place the upper portion of the plaster model. The present invention relates to a denture manufacturing tray using a 3D printing technique using a 3D printer, but a denture manufacturing tray manufactured using a 3D printer, and having a cross bar into which a screw can be inserted to measure a vertical diameter, and a denture manufacturing method using the same.

 Generally dentures are also called dentures and are artificial implants that artificially restore the shape and function of lost teeth when natural teeth are missing.

The reason for dentures is that if left unattended, interlocking teeth, such as clam teeth, may grow excessively, or adjacent teeth may be skewed. This is because the bones, that is, two days, are absorbed and the gums fall down.

Therefore, if left for a long time after the tooth is missing, the absorption of the two-day bone is faster, it becomes difficult to make denture afterwards.

In order to make the denture, first, after treating dental caries and gum disease, it is manufactured using materials such as gold, platinum, nickel-chromium alloy, synthetic resin, and ceramics.

The types of dentures currently in use are as follows.

① Fixed dentures: Also called fixed partial dentures. If the number of missing teeth is relatively small and there are healthy natural teeth on both sides of the missing teeth, artificial teeth are placed between the abutments as if the healthy natural teeth were placed as a bridge to the abutment. How to connect.

② Removable partial denture: It is used when a large number of teeth are missing or teeth at the back of the gum, ie large molar teeth. It is hooked on natural teeth or supported by a precision adhesive device to prevent falling out of the mouth.

③ complete dentures: This means that the dentures are made in the state of missing all, belonging to the most difficult of the dentures. Dentures in the oral cavity can be supported by close contact between the denture and the oral mucosa. The patient should be able to perform the chewing and sounding function smoothly by wearing a complete denture.

④ Implant tooth: developed in modern times, corresponds to a new form of denture. The production method is simple implantation of artificial tooth roots on two bones, and bone tissue between the artificial tooth roots and two bones. When this tooth is filled, the denture is screwed into the artificial tooth root for retention.

Patients with all or nearly missing upper and lower teeth are referred to as complete edentulous patients, and dentists produce full dentures and provide them to patients.

In the method of manufacturing the total denture of the complete edentulous patient, the doctor looks at the patient and collects the impression of the patient, and then, with the obtained impression, the total denture is manufactured by the plaster model in the laboratory.

In particular, when the maxillary and mandibular pattern of the complete edentulous patient is absent, the height of the maxillary and mandible, that is, the vertical diameter, must be measured in the oral cavity of the patient. Set the vertical diameter while adjusting the vertical diameter measuring screw in the upper part and send it to the laboratory.

However, since the measurement of the vertical height appears very differently according to the dentist, and the position of the vertical height felt by the patient is not accurately understood, a lot of errors occur, making the production very difficult.

The conventional method for manufacturing a complete denture includes a preliminary impression acquisition step of obtaining a preliminary impression after the dentist checks the oral condition; A personal tray manufacturing step of manufacturing a patient-specific personal tray on the obtained preliminary impression; A final impression acquisition step of acquiring a final impression of denture action with the personal tray produced in the individual tray production step; Wax rim production step of producing a resin image and wax rim on the top of the final impression; A bite acquisition step of acquiring a bite in the oral cavity with a resin wax wax in the wax rim manufacturing step; A tooth arrangement step of arranging teeth after mounting the bite acquired in the bite acquisition step; A state checking step of checking a state in the oral cavity of the teeth arranged in the tooth arrangement step; It is composed of finishing stage after checking status.

Conventionally, the upper and lower trays for denture action are disclosed, and the Korean Patent Office Publication No. 1302702 includes upper and lower main trays 10a and 10b which are respectively fitted to surround upper and lower gums in a patient's mouth. Upper and lower auxiliary trays 20a and 20b which are fitted so as to be engaged or separated from the upper main tray 10a and the lower main tray 10b so that the teeth abut against each other, and the upper main tray 10a and the lower main tray 10b. Upper tray 10a and lower main tray 10b are connected to the center facing each other, and upper and lower main trays 10a and 10b that fit the individual of the patient so that the gum state is comfortable around the condy in the patient's mouth. It consists of a tray adjusting means 30 for adjusting the level and height of (see Fig. 1).

In addition, Korean Patent Application Publication No. 2013-0002210 discloses a technique for attaching a detachable denture to an implant member as a denture attachment.

Korean Patent Application Publication No. 1394887 provides a Gothic arch tracer for measuring accurate vertical height when the patient's unique occlusion is lost when making the denture. The exact bite of the patient using the Gothic arch tracer using this Gothic arch tracer It is formed to enable acquisition.

However, the conventional tray and the method for producing a full denture had the following problems.

(1) In the conventional complete denture manufacturing process, there should be at least five exchanges of intermediate materials between the laboratory and the dental hospital, and it is difficult to produce accurate complete dentures due to an error in each manufacturing process of such intermediate materials.

(2) In the case of occlusal acquisition through conventional gothic arch tracing, the method of using a ready-made gothic arch tracer is very difficult and inaccurate.

(3) The dental patient is stressed a lot because at least five visits are required.

In order to solve the above problems, the present invention, after scanning the upper and lower jaw gypsum model with a 3D scanner, based on this to form a separate upper and lower jaw tray body,

The individual maxillary tray body and the maxillary bottom surface that can cover the cupboard and the maxillary gums; A maxillary left and right supporters protruding from the front left and right sides with the gums of the maxillary bottom surface; An upper bottom plate formed in an arc shape in the center of the left and right supports; It consists of an image measuring surface fixed to the front portion of the top plate,

The individual lower mandible tray body and the mandible bottom surface of the 'U' shape to cover the mandible gums; A mandible left and right support protruding from the front left and right sides with the gums of the mandible bottom surface; A cross bar which is formed across the lower left and right supports and has a center screw hole formed therein; The screw hole has a measuring table formed with a screw at the bottom to measure the vertical diameter upwards; Characterized in that the lower measurement surface is formed in which the upper surface formed in the front portion of the lower mandible bottom is formed flat.

Denture production method using the denture production tray of the present invention includes a preliminary impression acquisition step of obtaining a preliminary impression after the dentist checks the oral condition; A tray manufacturing step of manufacturing a patient-specific denture production tray on the obtained preliminary impression; A measurement step of measuring up to an exact vertical diameter using the denture production tray; A wax rim manufacturing step of producing a resin phase and a wax rim based on the measurements measured in the measuring step; A tooth arrangement step of mounting the teeth after the wax rim manufacturing step; A state checking step of checking a state in the oral cavity of the teeth arranged in the tooth arranging step; Characterized in that it consists of a finishing step to finish after the state check step.

Denture production method using a denture production tray of the present invention includes a preliminary impression acquisition step of obtaining a preliminary impression after the dentist checks the oral condition; A tray manufacturing step of manufacturing a patient-specific denture production tray on the obtained preliminary impression; A wax rim production step of producing a resin phase and a wax rim on the denture production tray produced in the tray production step; A measurement step of acquiring a patient's bite using a denture production tray manufactured in the wax rim production step and measuring the exact vertical diameter; A tooth arrangement step of mounting after the measuring step and arranging the teeth; A state checking step of checking a state in the oral cavity of the teeth arranged in the tooth arranging step; Characterized in that consisting of a finishing step to finish after the state check step.

According to the denture production tray using the 3D printing technology formed in the preferred embodiment of the present invention and the denture production method using the same, the following effects occur.

(1) In the complete denture manufacturing process, the production process between the dental hospital and the laboratory decreases at least two times, thereby minimizing the error, and by using the 3D scanner and the printer, it is possible to manufacture the complete denture more accurately.

(2) The measuring table is already installed in the denture production tray of the present invention, and the vertical diameter can be easily and conveniently measured by the upper and lower mandibular surfaces that are correctly seated on the patient's gums.

(3) The dental patient can reduce the number of dental visits at least two times, so that the patient can minimize the dental visit stress.

1 is a side view of a conventional denture upper and lower trays.
Figure 2 is a perspective view of the individual maxillary tray body of the denture production tray using the 3D printing technology formed in a preferred embodiment of the present invention.
Figure 3 is a perspective view of the individual mandible tray body of the denture production tray using the 3D printing technology formed in a preferred embodiment of the present invention.
Figure 4 is a flow chart showing a denture production method using a denture production tray using a 3D printing technology formed in a preferred embodiment of the present invention.

In the present invention, after scanning the upper and lower gypsum model 500 with a 3D scanner, the individual upper and lower mandible tray bodies 100 and 200 are formed on the basis of the 3D printer.

The individual maxillary tray body 100 has a maxillary bottom surface 110 that can cover the cupboard and the maxillary gums; The maxillary left and right supporters 120 protruding from the front left and right sides with the gums of the maxillary bottom surface 110; An upper bottom plate 130 formed in an arc shape in the center of the left and right supporters 120; It consists of an image measuring surface 140 is fixed to the front portion of the top plate 130,

The individual mandible tray body 200 and the mandible bottom surface of the 'U' shape so as to cover the mandible gums; A mandible left and right supporter 220 protruding from the front left and right sides with the gums of the mandible bottom surface 210; A crosspiece 230 which is formed across the lower left and right supporters 220 and in which a center screw hole is formed; The screw hole 242 has a measuring table 240 formed with a screw at the bottom to measure the vertical diameter upward; A lower measurement surface 250 having a flat upper surface formed on the front surface of the lower mandible bottom is formed.

Denture production tray (1) of the present invention is formed of the individual upper jaw tray body 100 and the individual lower jaw tray body 200, it is formed so as to be engaged with the articulator.

The individual maxillary tray body 100 forms the maxillary bottom surface 110 including the gum part that is completely chamfered after 3D scanning based on the plaster of the maxillary part of the patient.

The individual maxillary tray body 100 is to be formed by printing as a 3D printer as a whole, after completing the 3D shape of the individual maxillary tray body 100 on the upper part of the plaster model 500, and then 3D printing it.

The 3D printed individual maxillary tray body 100 is manufactured by forming the maxillary bottom surface 110, the maxillary left and right supporters 120, the top bottom plate 130, and the top measurement surface 140 at once.

The upper and lower left and right supporters 120 are formed on the left and right of the maxillary bottom surface 110, and the upper and left and right supporters 120 are formed in a wide fan shape at the rear, and are formed in an arc shape convex in the front and rear. The bottom plate 130 is formed.

The upper bottom plate 130 is formed to be in contact with the upper portion of the measuring table 240, while increasing the height of the measuring table 240 by turning the screw while measuring the vertical diameter of the upper and lower jaw in the state of the patient's teeth It is formed to be fixed.

The individual mandible tray body 200 is formed at the bottom of the mandible bottom surface 210, the mandible left and right support 220, the crosspiece 230 as a 3D printer.

The mandible bottom surface 210 is formed in a 'U' shape, is formed to cover only the gum portion of the mandible, the mandible left and right support 220 is formed on both sides.

A crosspiece 230 having a screw hole 242 is formed across the lower left and right supporters 220.

The measuring hole 240 is formed in the screw hole 242. The measuring table 240 has a screw formed at a lower end thereof, and is formed to be flat so as to be in contact with the upper bottom plate 130.

The upper measuring surface 140 and the lower measuring surface 250 are formed to take a bite when the upper and lower jaws contact with each other without the measuring table 240.

Denture production method using the denture production tray (1) of the present invention includes a preliminary impression acquisition step (a) of obtaining a preliminary impression after the dentist checks the oral condition;

A tray manufacturing step (b) of manufacturing a patient-specific denture production tray (1) on the obtained preliminary impressions;

Wax rim production step (c) for producing a resin phase and wax rim in the denture production tray (1) produced in the tray production step (b);

A measurement step (d) of taking a patient's bite by using the denture production tray (1) manufactured in the wax rim production step (d) and measuring the exact vertical diameter;

A tooth arrangement step (e) for mounting after the measuring step (d) and arranging the teeth;

A state checking step (f) for checking a state in the oral cavity of the teeth arranged in the tooth arranging step (e);

It consists of a finishing step (g) to finish after the state checking step (f).

The preliminary impression acquisition step (a) is a step of obtaining a preliminary impression after the dentist checks the condition in the oral cavity, the patient is the first impression to make a plaster shape (500).

When the gypsum shape 500 is thus provided to the laboratory, the laboratory performs the tray manufacturing step (b) of manufacturing the denture production tray (1).

In the tray production step (b), the denture production tray 1 is made, and then the wax rim production step (c) is performed.

The measuring step (d) is to take the patient's bite using the denture production tray (1) produced in the wax rim manufacturing step (d), and to measure the exact vertical diameter.

The tooth arrangement step (e) is a step of forming a resin image on the basis of the measurement step (d) and arranging artificial teeth based on this.

The state checking step (f) and the finishing step (g) is a step where the patient visits and finishes.

According to the denture manufacturing method using the denture production tray using the 3D printing technology of the present invention, the patient first visits to perform a preliminary impression acquisition step (a), and the second visit to perform the measurement step (d), and then check the status. Since step (f) and finishing step (g) can be performed, the patient can complete the denture after three visits.

According to the denture production tray using the 3D printing technology and the denture manufacturing method using the same formed according to a preferred embodiment of the present invention, the error is minimized because the production process between the dental hospital and the laboratory decreases at least two times during the complete denture manufacturing process. 3D scanners and printers can be used to more accurately produce complete dentures, and the denture production tray of the present invention is already equipped with a measuring table, which is easily and conveniently set by the upper and lower mandibular surfaces that are correctly seated on the patient's gums. Vertical height can be measured, and dental patients can reduce the number of dental visits at least two times, so that patients can minimize dental visit stress.

While the invention has been described with reference to the accompanying drawings, preferred embodiments of the present invention will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the invention encompassed by the following claims.

1: Denture production tray
100: individual maxillary tray body 110: maxillary bottom surface
120: maxillary left and right support 130: upper floor plate
140: phase measurement surface
200: individual mandible tray body 210: mandible bottom surface
220: mandible left and right support 230: crossbar
240: measuring table 242: screw hole
250: measuring surface 500: plaster model

Claims (4)

After scanning the upper and lower gypsum model with 3D scanner, the individual upper and lower mandible trays are composed in 3D on the upper and lower gypsum plaster models, and then 3D printing is used to produce them integrally.
The upper plate is formed in the middle of the individual upper tray body, a cross is formed in the middle of the individual lower tray body, denture production using the 3D printing technology characterized in that the center of the cross is formed with a measuring table capable of adjusting the height of the screw tray. After scanning the upper and lower gypsum model 500 with a 3D scanner, the individual upper and lower mandible tray bodies 100 and 200 are formed using the 3D printer.
The individual maxillary tray body 100 has a maxillary bottom surface 110 that can cover the cupboard and the maxillary gums; The maxillary left and right supporters 120 protruding from the front left and right sides with the gums of the maxillary bottom surface 110; An upper bottom plate 130 formed in an arc shape at the center of the left and right supporters 120; It consists of an image measuring surface 140 is fixed to the front portion of the top plate 130,
The individual mandible tray body 200 and the mandible bottom surface of the 'U' shape so as to cover the mandible gums; A mandible left and right support 220 which protrudes from the front left and right sides with the gums of the mandible bottom surface 210; A crosspiece 230 formed across the lower left and right supporters 220 and having a center screw hole formed therein; The screw hole 242 has a measuring table 240 formed with a screw at the bottom to measure the vertical diameter upward; Denture production tray using the 3D printing technology, characterized in that the lower measurement surface 250 is formed with a flat upper surface formed on the front surface of the lower mandible. The method according to claim 1 or 2,
The measuring table 240 has a screw is formed at the bottom, the denture production tray using the 3D printing technology, characterized in that formed on the top flat. Denture production method using the denture production tray (1) includes a preliminary impression acquisition step (a) of obtaining a preliminary impression after the dentist confirms the oral condition;
A tray production step (b) of manufacturing a patient-specific denture production tray (1) on the obtained preliminary impressions;
Wax rim production step (c) for producing a resin phase and wax rim in the denture production tray (1) produced in the tray production step (b);
A measurement step (d) of taking a patient's bite using the denture production tray (1) manufactured in the wax rim production step (d) and measuring the exact vertical diameter;
A tooth arrangement step (e) for mounting after the measuring step (d) and arranging the teeth;
A state checking step (f) for checking a state in the oral cavity of the teeth arranged in the tooth arranging step (e);
Denture production method using a denture production tray using a 3D printing technology, characterized in that the finishing step (g) to finish after the state check step (f).

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