WO2009093796A2 - Gabarit de fabrication d'un modèle dental - Google Patents

Gabarit de fabrication d'un modèle dental Download PDF

Info

Publication number
WO2009093796A2
WO2009093796A2 PCT/KR2008/006645 KR2008006645W WO2009093796A2 WO 2009093796 A2 WO2009093796 A2 WO 2009093796A2 KR 2008006645 W KR2008006645 W KR 2008006645W WO 2009093796 A2 WO2009093796 A2 WO 2009093796A2
Authority
WO
WIPO (PCT)
Prior art keywords
dental model
supporting member
propping
base plate
jig
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2008/006645
Other languages
English (en)
Other versions
WO2009093796A3 (fr
Inventor
Gwang Gi Cho
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2009093796A2 publication Critical patent/WO2009093796A2/fr
Anticipated expiration legal-status Critical
Publication of WO2009093796A3 publication Critical patent/WO2009093796A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/002—Means or methods for correctly replacing a dental model, e.g. dowel pins; Dowel pin positioning means or methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods

Definitions

  • the present invention relates to a jig for fabricating a dental model. More specifically, the present invention relates to a jig for fabricating a dental model, which enables, when it is intended to fabricated a prosthesis for a damaged tooth, fabrication of a dental model from an impression mold of teeth of a patient, separating only a model of a damaged tooth from the dental model fabricated thus, and securing a renewal tooth of the damaged tooth to a required position.
  • the damaged tooth is treated as well as trimmed for fabrication of the prosthesis at a dentist's.
  • an impression material tray having an impression material stuffed therein is placed in a mouth of the patient to form an impression mold which has in intaglio of the damaged tooth and an antagonist tooth thereof.
  • the impression material a material selected from silicone rubber, polysulphides rubber, agar, alginate can be used.
  • the impression mold obtained through an impression step is provided to a dental technician, and the dental technician forms a dental model by filling a solidifying material, such as dental cement, gypsum, casting stone, or so on in the impression mold, to form the dental model.
  • a solidifying material such as dental cement, gypsum, casting stone, or so on in the impression mold.
  • a fixing pin is inserted and secured to each of teeth of the dental model from an underside thereof, and a base portion is formed on a bottom of the dental model to cover the fixing pins. Then, only a model of the damaged tooth is cut-off to separate from the dental model.
  • a wax-up step is taken to form a wax pattern model of a cone shape.
  • the wax pattern model is invested with a semisolid refractory investment, such as gypsum, or a silicon bonded investment filled in an electric furnace.
  • a semisolid refractory investment such as gypsum
  • silicon bonded investment is hardened and then heated slowly up to a preset temperature to burn down the wax pattern model to form a mold. If the mold is obtained thus, a molten metal of a dental casting alloy, such as gold or silver, is fed to a casting space in the mold by using a centrifugal casting machine, to finish formation of the prosthesis.
  • a fixing pin inserting hole and a recess are formed in the bottom surface of the dental model with a drill for each of the teeth.
  • the bottom surface of the dental model is washed with water to remove chips from the recess and the dental model is dried for 30 minutes to one hour. If the chips are left on the bottom surface of the dental model, a fine gap is formed between the dental model and a base to be formed later, even partially, to make a position of the dental model poor, impairing accuracy of the prosthesis which is a final product such that the patient feels a sense of foreign matter on the prosthesis.
  • a primary base is formed on the bottom of the dental model to cover the fixing pins. Formation of the primary base is finished through a drying process of about 30 minutes after applying the solidifying material, such as the dental cement, gypsum, and casting stone, to lower sides of the fixing pins.
  • the parting agent enables the primary base and the dental model to put together or separate from each other.
  • the fixing pins and the recess formed in the bottom of the dental model have an important function of guiding the damaged tooth model to be always placed at the same position without movement from the primary base, enabling to fabricate an accurate prosthesis.
  • a secondary base which covers an underside of the primary base fully for protecting the primary base.
  • the secondary base is formed by filling the solidifying material, such as dental cement, gypsum, casting stone, and so on in a mold provided in advance, investing a lower portion of the primary base in an upper portion of the solidifying material, and having a drying step of in a range of one hour.
  • the prosthesis fabricated by above steps has problems in that an accuracy of the prosthesis is poor significantly due to accumulation of shrinking and expansion errors come from absorption and drying of the solidifying material of the dental model and the base portion in view of a nature of the material as the dental model and the base portion repeat many times of water absorption and drying in the steps of fixing the fixing pins to the dental model, and quickness is poor significantly as long time periods are taken until the dental model and the base portion are dried.
  • an object of the present invention is to provide a jig for fabrication of a dental model which enables quick fabrication of an accurate dental model by a simple process.
  • a jig for fabricating a dental model includes a supporting member having a base plate for placing an impression material tray thereon having an impression mold seated thereon, a vertical plate extended in up/down directions from a front edge of the base plate, and slots formed on the same line in an upper edge and a lower edge of the vertical plate and, a propping member to be removably secured either to an upper surface or a bottom surface of the base plate of the supporting member by means of the slots respectively for fixedly securing fixing pins 240 which fix the dental model.
  • the jig for fabricating a dental model of the present invention improves accuracy and quickness of fabrication of the dental model significantly because no water absorption and drying steps are required at all in a process of fabrication of the dental model and fixing the fixing pins to the dental model, leading to cause no shrinkage and expansion errors and save drying time periods.
  • the jig for fabricating a dental model of the present invention can improve productivity in fabrication of the dental model significantly and shorten a fabrication time period of the dental model significantly because all of the complicate intermediate steps, such as a dental model bottom grinding ⁇ drying ⁇ recess forming ⁇ washing ⁇ drying ⁇ application of a parting agent ⁇ drying the parting agent ⁇ forming a primary base ⁇ drying ⁇ forming a secondary base, and so on which are required to carry out without fail in the related art, can be omitted owing to the molding of the dental model on a base surface of a propping member in a state the fixing pins are secured to the base surface of the propping member.
  • FIG. 1 illustrates a perspective view of a supporting member in a jig for fabricating a dental model in accordance with a preferred embodiment of the present invention.
  • FIG. 2 illustrates a bottom perspective view of a supporting member in a jig for fabricating a dental model in accordance with a preferred embodiment of the present invention.
  • FIG. 3 illustrates a perspective view of a propping member in a jig for fabricating a dental model in accordance with a preferred embodiment of the present invention.
  • FIG. 4 illustrates a bottom perspective view of a propping member in a jig for fabricating a dental model in accordance with a preferred embodiment of the present invention.
  • FIG. 5 illustrates an exploded perspective view of a jig for fabricating a dental model in accordance with a preferred embodiment of the present invention.
  • FIG. 6 illustrates a perspective view of a supporting member having a propping member placed in an underside thereof in accordance with a preferred embodiment of the present invention.
  • FIG. 7 illustrates a side view showing a state in which inserting holes are made in a supporting member by using a drilling machine in accordance with a preferred embodiment of the present invention.
  • FIG. 8 illustrates a bottom view of a supporting member showing a state in which fixing pins are fixedly secured to a supporting member in accordance with a preferred embodiment of the present invention.
  • FIG. 9 illustrates a perspective view showing a state in which a dental model is being formed with an impression material tray filled with a solidifying material placed between a supporting member and a propping member of the present invention.
  • FIG. 10 illustrates a perspective view showing a dental model fabricated by using a jig for fabricating a dental model of the present invention and a damaged tooth model separated from the dental model.
  • Best Mode for Carrying Out the Invention [34] Reference will now be made in detail to the specific embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Words and terms used in the specification and claims of the present invention should be interpreted in meanings and concepts meeting technical aspects of the present invention in a principle that the inventor can define the concepts of the words and the terms appropriately for describing the inventor's invention in the best way. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts, and for clarity sake, only different parts different will be described for avoiding duplicated description.
  • the jig for fabricating a dental model includes a supporting member 100 for placing an impression material tray T thereon having an impression mold A seated thereon, and a propping member 200 for joining with fixing pins 240(see fig 8) which are removably placed in an upper surface 110a or a bottom surface 110b of a base plate of the supporting member 100 for fixedly securing the dental model.
  • the supporting member 100 includes a base plate 110 for placing an impression material tray T thereon having an impression mold A seated thereon, a vertical plate
  • the slots 121 and 122 are vertical, each with an opened end for slidably placing a propping member 200 in a vertical direction therein.
  • the propping member 200 is removably secured to the upper surface 110a or the bottom surface 110b of the base plate of the supporting member 100 by means of the slot 121 or 122.
  • a guide wall 130 formed further along a periphery of the base plate extended downward from of bottom surface 110b of the base plate in conformity with a periphery of the propping member 200 for guiding a position of the propping member 200 to be placed on the bottom surface 110b of the base plate.
  • the propping member 200 placed on the bottom surface 110b of the base plate of the supporting member 100 is in a state received in a space the guide wall 130 and the vertical plate 120 form.
  • the propping member 200 has a periphery identical to the periphery of the impression material tray T in size and shape, for making easy alignment of the propping member 200 with the impression material tray T with reference to the peripheries when the propping member 200 is placed on the impression material tray T such that the inserting holes 230 can be made accurately in the propping member 200 for securing the fixing pins 240 therein.
  • the propping member 200 has the dental model fixed thereto.
  • the dental model is formed by applying a pressure to the propping member 200 placed on the impression material tray T having the solidifying material filled therein.
  • the dental model molded thus is in a state stuck to the propping member 200, and, in this instance, the propping member 200 serves as a base of the dental model that supports an underside of the dental model, horizontally.
  • the propping member 200 has a base surface 210 with a horizontal peripheral surface 220 elevated from the base surface 210 in conformity with a shape of the teeth for supporting an underside of the dental model formed thus, horizontally. Then, the inserting holes 230 are formed in the horizontal peripheral surface 220, and the fixing pins 240 are inserted in, and secured to, the inserting holes 230, respectively (See FIG. 8).
  • the base surface 210 of the propping member 200 has a T-piece 250 formed thereon for placing the T-piece in the slot 121 or 122 in the supporting member 100.
  • the T-piece 250 is formed at a center of a front end of the base surface 210 of the propping member 200 so that the T-piece 250 is positioned on the same line with the slots 121 and 122 of the supporting member 100.
  • the T-piece 250 includes a stem portion 251 to be placed in the slot 121 or 122 in the supporting member 100 and a wing portion 252 extended from an end of the stem portion 251 in opposite directions for preventing the stem portion 251 from falling off the slot 121 or 122 of the supporting member 100.
  • the propping member 200 has a supporting projection 260 formed on an underside for maintaining a horizontal position of the propping member 200 placed on an underside of the base plate 110 of the supporting member 100.
  • a process will be described for fabricating a dental model by using the jig for fabricating a dental model of the present invention and obtaining a damaged tooth model.
  • the impression material tray T having the impression mold A obtained by an impression step seated thereon is placed on the base plate 110 of the supporting member 100.
  • a sticky solid substance (not shown) may be placed on the base plate 110 of the supporting member 100, additionally.
  • the solid substance may be clay which is available easily from surroundings. Accordingly, when the worker applies an appropriate pressure to the impression material tray T placed on the solid substance, a lower portion of the impression material tray T is surrounded by the solid substance such that the impression material tray T is securely seated without shaking.
  • the propping member 200 is placed on the base plate 110 of the supporting member 100.
  • the base surface 210 of the propping member 200 is made to face the impression material tray T, and T-piece 250 of the propping member 200 is placed in the slot 121 in the vertical plate 120 and slid downward to join the propping member 200 with the supporting member 100.
  • the propping member 200 is stacked on an upper side of the impression material tray T, when the worker is required to align the peripheries of the impression material tray T and the supporting member 100, such that teeth portions of the impression material tray T and the horizontal peripheral surface 220 of the supporting member 100 are positioned on the same line, for inserting the fixing pins in, and securing the fixing pins to, the dental model through the horizontal peripheral surface 220 accurately in a later step of placing the fixing pins 240.
  • the base surface 210 of the propping member 200 is made to face down, and the T-piece 250 of the propping member 200 is placed in the slot 122 in the vertical plate 120 extended downward toward the bottom surface 110b of the base plate of the supporting member 100 and slid upward to join the propping member 200 with the supporting member 100.
  • the guide wall 130 is formed at the bottom surface 110b of the base plate of the supporting member 100 additionally, the propping member 200, surrounded by the guide wall 130 and the vertical plate 120, can always maintain an accurate secure position.
  • the propping member 200 placed on the underside of the base plate 110 of the supporting member 100 can maintain a horizontal state.
  • the supporting member 100 is placed on a drilling machine such that the propping member 200 faces down, and the inserting holes 230 are formed in the propping member 200 for each of teeth.
  • the fixing pin inserting hole 230 is made with reference to a center of each of teeth formed in intaglio in the impression mold A exposed from an upper portion thereof. In this instance, since the peripheries of the impression material tray T and the supporting member 200 are aligned already in a prior step, all the fixing pin inserting holes 230 made thus are formed in the horizontal peripheral surface 220 of the propping member 200.
  • the fixing pin 240 is inserted in each of the inserting holes 230 such that a top end of the fixing pin 240 is projected beyond the horizontal peripheral surface 220 of the propping member 200.
  • the propping member 200 is separated from the supporting member 100, and the solidifying material B is filled in the impression mold A seated on the impression material tray T placed on the supporting member 100. Then, the propping member 200 is turned upside down such that the underside of the base surface 210 of the propping member 200 faces up, the propping member 200 is placed on the supporting member 100 again to make the propping member 200 and the impression material tray T to form a stack in up/down directions, and the propping member 200 is pressed down toward the impression material tray T.
  • the propping member 200 and the impression material tray T are brought into stacking in a state the solidifying material B is applied to the base surface 210 of the propping member 200, adequately.
  • the propping member 200 is separated from the supporting member 100, to obtain a dental model 300 having fabrication thereof finished fixed to the horizontal peripheral surface 220 of the propping member 200.
  • the dental model 300 is obtained thus, the dental model and the horizontal peripheral surface 220 of the propping member 200 are cut-off with a cutter 400, to obtain the damaged tooth model C.
  • the base surface 210 of the propping member 200 is positioned lower than the horizontal peripheral surface 220, permitting to secure a certain height from a bottom of the dental model 300, the cutting with the cutter 400 is very easy and safe.
  • the propping member 200 and the supporting member 100 are formed of a transparent material, the work can be carried out very easily while checking lower side states of the propping member 200 and the supporting member 100.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Prosthetics (AREA)

Abstract

La présente invention concerne un gabarit de fabrication d'un modèle dentaire permettant, lorsque l'on souhaite fabriquer une prothèse pour une dent abîmée, de fabriquer un modèle dentaire à partir d'un moule d'impression des dents d'un patient, séparant seulement un modèle d'une dent abîmée du modèle dentaire ainsi fabriqué, et fixant une nouvelle dent correspondant à la dent abîmée sur une position requise. Le gabarit comprend un élément de support (100) pourvu d'une plaque de base (110) destinée à recevoir un plateau T pour le matériau d'impression comprenant un moule d'impression A, une plaque verticale (120) s'étendant dans des directions ascendante/descendante à partir d'un bord supérieur de la plaque de base, des fentes (121) formées sur la même ligne au niveau d'un bord supérieur et d'un bord inférieur de la plaque verticale (120) et un élément d'appui (200) destiné à être fixé de manière amovible soit à une surface supérieure (110a), soit à une surface inférieure de la plaque de base de l'élément de support (100) à l'aide des fentes (121) afin de fixer solidement des broches de fixation (240) destinées à fixer le modèle dentaire.
PCT/KR2008/006645 2008-01-22 2008-11-11 Gabarit de fabrication d'un modèle dental Ceased WO2009093796A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080006408A KR100817013B1 (ko) 2008-01-22 2008-01-22 치아모형 제작틀
KR10-2008-0006408 2008-01-22

Publications (2)

Publication Number Publication Date
WO2009093796A2 true WO2009093796A2 (fr) 2009-07-30
WO2009093796A3 WO2009093796A3 (fr) 2011-12-08

Family

ID=39411765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/006645 Ceased WO2009093796A2 (fr) 2008-01-22 2008-11-11 Gabarit de fabrication d'un modèle dental

Country Status (2)

Country Link
KR (1) KR100817013B1 (fr)
WO (1) WO2009093796A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112315604A (zh) * 2020-12-09 2021-02-05 四川大学 一种排溢型牙科印模托盘

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101172583B1 (ko) * 2010-03-10 2012-08-08 염철수 치아인상용트레이 및 치아인상방법
KR200467591Y1 (ko) 2011-08-16 2013-06-20 이윤재 치과보철 작업모형 제작틀
KR101291944B1 (ko) 2011-08-17 2013-07-31 이윤재 치과보철 작업모형 제작틀
KR102425790B1 (ko) * 2015-07-07 2022-07-27 진태선 치아모형을 이용하여 인공치아를 성형하는 인공치아 성형장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01305942A (ja) * 1988-06-03 1989-12-11 Seiji Okumura 可撒模型製作トレーおよび歯型模型の製作方法
WO1993010719A1 (fr) * 1991-12-02 1993-06-10 Laboratorio Protesi Dentale Concetti Mauro - Raccichini Franco - Sabatini Marcello S.N.C. Dispositif de fabrication de modeles de protheses dentaires
DE19624158A1 (de) * 1996-06-18 1998-01-08 Kiefer Geb Sahner Inge Helene Verfahren zur zahntechnischen Modellherstellung
KR100417880B1 (ko) * 2001-07-21 2004-02-11 김영문 치아모형 교합기
KR200272676Y1 (ko) * 2002-01-16 2002-04-18 김연순 치아모형 고정핀
FR2869526A1 (fr) * 2004-04-29 2005-11-04 Gerard Gonzalez Systeme de preparation de socles pour modele de travail dentaire et socle
JP2007209607A (ja) * 2006-02-10 2007-08-23 Shimadzu Corp 歯科用トレー、並びに、それを用いた歯科用装置及び歯科模型

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112315604A (zh) * 2020-12-09 2021-02-05 四川大学 一种排溢型牙科印模托盘
CN112315604B (zh) * 2020-12-09 2021-05-11 四川大学 一种排溢型牙科印模托盘

Also Published As

Publication number Publication date
KR100817013B1 (ko) 2008-03-27
WO2009093796A3 (fr) 2011-12-08

Similar Documents

Publication Publication Date Title
ITMI942224A1 (it) Apparato e metodo per creare un modello dentale
US5961325A (en) Method and apparatus for fabricating and fitting dentures
WO2009093796A2 (fr) Gabarit de fabrication d'un modèle dental
CN101605508A (zh) 用于制备牙齿工件的器件
US20220133449A1 (en) Method for producing a molded body and molded body
US5232365A (en) Process for producing dental working cast
KR101101564B1 (ko) 메쉬 형태의 유리섬유를 이용한 의치 제작방법
ITRM940500A1 (it) "corredo di elementi per la colatura per la realizzazione di modelli di gesso per protesi dentarie, e sistemi di colatura che impiegano tali elementi".
ITCO970015A1 (it) Procedimento per la produzione di protesi dentali fisse in resina inserti per le stesse e protesi fisse cosi' ottenute
CN108158680B (zh) 一种义齿咬合实验用安装方法
JP5486650B2 (ja) 歯科作業模型の嵌合装置
US20160278893A1 (en) Method and device for securing prefabricated prosthetic teeth
KR20050021430A (ko) 치과용 모형화 및 교합기 시스템 및 방법
KR200446181Y1 (ko) 치아모형 교합기용 플레이트
JPS6379651A (ja) 義歯の製造方法
KR200467591Y1 (ko) 치과보철 작업모형 제작틀
ITMI941873A1 (it) Cuvetta di duplicazione
KR101291944B1 (ko) 치과보철 작업모형 제작틀
JP3273466B2 (ja) 石膏歯列模型の取付固定装置および取付固定方法
CN103462710B (zh) 一种用于制作假牙的分模方法
CN212816600U (zh) 一种用于加工义齿的注塑机
CN114224535A (zh) 一体注塑义齿颌架及其使用方法
JPH04187145A (ja) 作業用模型装着体および歯科技工用咬合器装着体からなる作業用模型と歯科技工用咬合器の固定部材、この固定部材の作業用模型装着体を使用する方法、この固定部材の作業用模型装着体を取り扱うゴム陰型
KR20100040499A (ko) 치아보철 제작용 모형조립체
JP2006075297A (ja) 作業模型用台の板状部材用型および作業模型用台の台部用型

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08871367

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08871367

Country of ref document: EP

Kind code of ref document: A2