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Patent Searching and Data


Title:
READY-MADE CUSTOMIZED IMPRESSION TRAY FOR FABRICATING AND FITTING DENTURES
Document Type and Number:
WIPO Patent Application WO/2002/032339
Kind Code:
A1
Abstract:
The present invention relates to a ready-made customized impression try for fabricating and fitting dentures more specifically, a method and apparatus for producing denture using the tray and changing the structure of the tray required for producing the denture to simultaneously measure the shape and height of the denture which is implanted to be fitted to the upper and lower jaws so that the producing processes of the denture can make simple. According to the invention, it provides a method and apparatus for producing denture using the tray capable of producing denture suitable for an oral structure of a patient in fast and simply manner by forming a shape measuring try (1) for a partial denture which forms a through hole portion (1) exposing an alveolar into the upper of tray measuring the shape of alveolar into which missing teeth and normal teeth are arranged and the height of denture to be implanted into it to adhere a plural number of caps for normal teeth (4) and plate (7, 7") for missing teeth to the through hole portion, and forming the plate for missing teeth for adhering paraffin measuring the height of denture to the its upper, respectively, to simultaneously check the shape of alveolar and a proper height of denture.

Inventors:
Kwon, Chil-soo (Bando Bora APT Gaegum 3-Dong, Busanjin-Gu 614-113 Busan, 103-1506, KR)
Kwon, Ki-bum (Bando Bora APT Gaegum 3-Dong, Busanjin-Gu 614-113 Busan, 103-1506, KR)
Application Number:
PCT/KR2001/001731
Publication Date:
April 25, 2002
Filing Date:
October 15, 2001
Export Citation:
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Assignee:
Kwon, Chil-soo (Bando Bora APT Gaegum 3-Dong, Busanjin-Gu 614-113 Busan, 103-1506, KR)
Kwon, Ki-bum (Bando Bora APT Gaegum 3-Dong, Busanjin-Gu 614-113 Busan, 103-1506, KR)
International Classes:
A61C13/00; A61C9/00; (IPC1-7): A61C13/00
Foreign References:
US5961325A1999-10-05
US5520539A1996-05-28
Attorney, Agent or Firm:
Kim, Young-ok (1242-7 Yeonsan 5-dong, Yeonjae-ku 611-085 Pusan, KR)
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Description:
Ready-made customized impression tray for fabricating and fitting dentures.

Technical Field The present invention relates to a ready-made customized impression tray for fabricating and fitting dentures more specifically, to a method and apparatus for producing denture using the tray and changing the structure of the tray required for producing the denture to simultaneously measure the shape and height of the denture which is implanted to be fitted to the upper and lower jaws so that the producing processes of the denture can make simple.

Background Art Typically, in order to implant denture into missing teeth, the shape and height of teeth for each person has been measured in the dental surgery and then the denture has been produced in the dental laboratory according to the measured shape to be fitted into oral structure of each person.

In a conventional art, when producing denture, it makes a mold into which the position of normal teeth and missing teeth are impressed and acquired with a wax rim in the state of sol which is no harm to men, the wax rim being adhered into the tray selected to be suitable for the shape of teeth according to alveolar and measures the height of denture which is intended to implant with paraffin, the paraffin causing the denture produced to be fitted to an oral structure according to the mold to attach to the missing teeth of frame.

This method divides the measurement and production into a dental surgery and a dental laboratory in producing the denture, respectively, i. e. this method measuring the shape of alveolar in the dental surgery, producing the frame to be fitted to the shape of alveolar, again measuring the height of denture which is intended to implant in the dental surgery and making the production of denture in the dental laboratory.

This kind of method puts a patient to inconvenience because of separately proceeding the measurement for the shape of alveolar

and the height of denture, and because of repetitively measuring and producing the shape of alveolar and the height of denture in the dental surgery and in the dental laboratory, respectively.

Futhermore it increases the medical treatment cost by passing another dental laboratory because it is difficult to accurately know the accurate height of normal teeth in a cutting portion of teeth when remedying damaged teeth by carious teeth, etc.

In order to improve the time consuming and cumbersome procedures, there was need for method and apparatus that could eliminate many steps and reduce the amount of time.

For examples, US 5,961,325 teaches that a dentist can directly take impressions of the patient's upper and lower arches using biteblock/impression tray and a preset teeth carrying tray, and US 5,520,539 shows two part impression tray consisting of a basic impression tray and of a paired impression tray freely arrangeable and positioned in order to improve the complicated procedures for producing denture. But these kind of method and apparatus described above still lack in solving the problems which are the a significant time or unnecessary process for producing denture of the prior structure of the trays are not built based on practical consideration and effectiveness.

Disclosure of Invention The object of the present invention overcomes the problems described above and provide a new ready-made tray, It provides a method and apparatus for producing denture using a tray namely, the ready-made customized impression tray which is capable of producing denture suitable for an oral structure of a patient in fast and simply manner by forming a shape measuring tray (A) for a partial denture which forms a through hole portion exposing an alveolar into the upper of tray measuring the shape of alveolar into which missing teeth and normal teeth are arranged and the height of denture to be implanted into it to adhere a plural number of caps for normal teeth and plate for missing teeth to the through hole portion, and forming the plate for missing teeth (B) to adhere paraffin measuring the height

of denture to the its upper, respectively, to simultaneously check the shape of alveolar and a proper height of denture.

Brief Description of the Drawings Fig. 1 shows an example of combined state of a cap and a plate with a tray for a partial denture of the invention.

Fig. 2 shows an example of attached state of paraffin with a tray for a total denture of the invention.

Fig. 3 shows an example of a tray for a partial denture of the invention.

Fig. 4 is a sectional view of a shape measuring tray developing the shape of alveolar according to the invention.

Fig. 5 or Fig. 6 is a sectional view of a height measuring tray for measuring the height of denture according to the invention.

Fig. 7 is a sectional view exhibiting a tray for a total denture according to the invention.

Fig. 8 is a sectional view showing the state to which paraffin in the shape of alveolar in Fig. 7 is attached.

Best Mode for Carrying Out the Invention The present invention will now be described with reference to the accompanied drawings.

In forming a frame for denture produced according to a normal tray of oral shape and a mold impressed and acquired by the tray, an apparatus for producing denture using a tray is characterized in that it forms a through hole portion (1) into which a pair of a shape measuring tray (A) and a height measuring tray (B) for partial denture measuring the shape of alveolar into which missing teeth and normal teeth are arranged and the height of denture to be implanted is formed, the upper of the through hole portion being contacted with the alveolar, and a plural number of protruded patches (3,3') into a hanging jaw (2) formed into the outer peripheral portion of the through hole portion, in the shape measuring tray (A), fixes a plural number of caps for normal teeth (4) checking the shape of alveolar into which the normal teeth and the missing teeth are arranged and plates (7,7')

for missing teeth into which inserting and holding holes (6,6') is penetrated and having paraffin (5) attached to theirs upper to the hanging jaw (2) and the protruded patches (3,3') of the through hole portion (1) and in the height measuring through hole portion (B), attaches the plates (7,7') for missing teeth having the paraffin (5) checking the height of denture attached to the upper to the hanging jaw (2) and the protruded patch (3,3') of the through hole portion (1).

Furthermore, in producing denture suitable for oral structure by measuring the shape of alveolar into which teeth are arranged with a tray having a wax rim attached to the inner in the shape of oral and the height of denture with a frame for denture into which paraffin is attached, a method for producing denture using a tray according to the invention is characterized in that it includes fabricating step (100) for producing a pair of tray for partial denture (A, B) forming a through hole portion (1) exposing alveolar into which missing teeth and normal teeth are arranged into the theirs upper surface and a tray for full denture into which inserting and holding holes (6,6') attaching paraffin (5') in the shape of alveolar to the upper contact portion of alveolar in which the full teeth are missed, i. e. not having any normal teeth, are penetrated, as shown in Fig1 or Fig 3, forming step (200) for the shape of alveolar by adhering a plural number of caps (4) and plates (7,7') to the through hole portion (1) of the shape measuring tray (A), as shown in Fig. 4, measuring step (300) for the height of denture intended to implant by attaching the paraffin (5) to the upper (7,7') of the plates (7,7') adhered to the height measuring tray for partial denture (B), as shown in Fig. 5 and Fig. 6, and producing (400) denture through the steps.

The invention forms a shape measuring tray (A) for partial denture impressing the shape of alveolar into which normal teeth and missing teeth are arranged and a height measuring tray (B) for partial denture checking the proper height of denture intended to implant, and a tray for full denture (C) impressing the shape of alveolar in which the full teeth are missed, i. e. not having any normal teeth, respectively, to produce denture having the shape of alveolar and the proper height suitable for an oral structure of a patient in fast and

simply manner according to the regular set of teeth of patient requesting denture. The operation of the invention will now be described below.

First, as shown in Fig. 1, the alveolar into which normal teeth and missing teeth are arranged is exposed to the shape measuring tray (A) for partial denture and the upper surface of the through hole portion (1) to impress and acquire the accurate shape of alveolar fitted to the oral structure of patient by fixing the plural number of caps (4) impressing the shape of alveolar into which normal teeth and missing teeth are arranged and the plates (7,7') for missing teeth into the hanging jaw (2) and the protruded patches (3,3') which forms the outer peripheral of the through hole portion (1), and as shown in Fig. 2 and Fig. 3, the paraffin (5) is attached to the inserting and holding holes (6,6') of the plates (7,7') for missing teeth which are adhered to the upper surface of the height measuring tray (B) for partial denture so that it coincides with the height of normal teeth exposed to the through hole portion (1), thereby mixing the normal teeth in which the upper jaw and the lower jaw are exposed to the through hole portion (1) with the paraffin to accurately impress the height of denture intended to implant.

Also, the operation for missing teeth of full teeth not having normal teeth is omitted since it performs the same operation with that as described above by attaching the paraffin (5') in the shape of alveolar to the inserting and holding holes (6,6') penetrated into the tray (C) for full teeth as shown Fig. 7 and Fig. 8.

Industrial Applicability The invention forms a shape measuring tray (A) for partial denture impressing the shape of alveolar and a height measuring tray (B) for partial denture checking the height of denture, and a tray for full teeth (C) not having normal teeth, respectively, and selectively attaches a cap (4) for normal teeth and plates (7,7') for missing teeth or a paraffin (5') in the shape of alveolar, according to a regular set of teeth of patient to be operated, thereby simultaneously impressing and checking the shape of alveolar and the height of denture to

reduce a round-trip number between a dental surgery and a dental laboratory and a visit number of patient for producing denture as well as to save the medical treatment cost by reducing a producing processing and period and also to improve convenience in use by fitting the damaged teeth to normal teeth through a through hole (1) of a tray to easily remedy the damaged teeth as well as to apply in a various use such as the production of denture and the remedy of the damaged teeth, etc.