WO2002064101A1 - Polyurethanic colour resin for precise dental models - Google Patents

Polyurethanic colour resin for precise dental models Download PDF

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Publication number
WO2002064101A1
WO2002064101A1 PCT/IT2002/000084 IT0200084W WO02064101A1 WO 2002064101 A1 WO2002064101 A1 WO 2002064101A1 IT 0200084 W IT0200084 W IT 0200084W WO 02064101 A1 WO02064101 A1 WO 02064101A1
Authority
WO
WIPO (PCT)
Prior art keywords
resin
dental
polyurethanic
models
precise
Prior art date
Application number
PCT/IT2002/000084
Other languages
French (fr)
Inventor
Claudio Ciminiello
Marco Gradi
Original Assignee
Claudio Ciminiello
Marco Gradi
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 Claudio Ciminiello, Marco Gradi filed Critical Claudio Ciminiello
Publication of WO2002064101A1 publication Critical patent/WO2002064101A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
    • A61K6/891—Compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • A61K6/893—Polyurethanes

Definitions

  • Polyurethanic colour resin invention relates to resin that can be employed in dental field for performing teeth models.
  • models In the operation of building teeth models it is very essential that models are very precise, rich in details, can be worked by hand and rotating instruments, can be personalized, always are precise.
  • Such precautions are necessary to prevent imperfect teeth models such as may be caused by very little fluid, very little precise, very sensitivity humid, very weak, very irregular surface.
  • Polyurethanic colour resin allow to have teeth models very precise, very workable, very hard, with very regular surface.
  • pre-loaded polyurethanic resin provided good dental models but the resin is very sensivity to humidity.
  • Our improved polyurethanic resin possesses the advantage that we can perform many dental models and every dental models are very precise, very resistant to rotating and hands instruments, rich in details, have regular surface and can be personalized by colour.
  • Our present invention consisting of adding the vinyltrimethoxysilane to pre-loaded polyurethanic resin to modify polyurethanic by grafting to the polymer backbone, equipping the polymer with pendant trimetho xysilyl groups that may be used as moisture-activated crosslinking sites.
  • the grafted resin is stable and can be shipped, handled, and stored, if properly packaged to exclude moisture for many months.
  • the grafted resin can be coloured by specific colour resin and even can be pouring to alginated impressions.
  • the grafted resin produce a more fluidity of that resin that allows to get rich details from dental impressions.
  • the grafted resin produce precise dental models and very resistance to hands and rotating instruments for improved chemical resistance, reduced deformation under load ( creep ), superior enviromental stress crack resistance, increased abrasion resistance, improved impact strenght and improved shrinkage.
  • the grafted resin can be poured to making more layers. Eighth, the grafted resin produce dental models with improved surface for less microporosity and microgranularity.
  • FIG. 1 represents a container with basic polyurethanic resin
  • FIG. 2 a bottle with viniltrimethoxysilane
  • FIG. 2 a container with catalysts polyurethanic resin.
  • FIG. 2 is pouring in FIG. 1.
  • FIG. 4 represents a container with basic polyurethanic resin mixed to viniltrimethoxysilane
  • FIG. 5 represents a measuring vessel.
  • FIG. 4 and FIG. 3 are pouring in FIG. 5.
  • FIG. 6 represents a measuring vessel with basic polyurethanic resin mixed to viniltrimethoxysilane and catalysts polyurethanic resin
  • FIG.7 represents an impression tray with silicon impression
  • FIG.8 represents a dental model.
  • FIG. 6 is pouring on FIG. 7 and FIG. 8 is the finished result(dental model).
  • FIG. 9 represents a colour polyurethanic
  • FIG. 10 represents a measuring vessel with basic polyurethanic resin mixed to a viniltrimethoxysilane and colour polyurethanic
  • FIG. 11 represents dental colour model.
  • FIG. 4 and FIG. 9 are pouring on FIG. 5;
  • FIG. 3 is pouring on FIG. 10 and
  • FIG. 11 is the finished result(dental colour model).
  • the final result is a very precise dental model.

Abstract

The object of the invention is to provide a polyurethanic resin that can be employed in dental field for performing precise dental models. The polyurethanic colour resin have to react to substance that allow to get away moisture and to strengthen chemical resistance, to improve impact strength, to reduce deformation under load, to increase abrasion resistance and to improve environmental stress crack resistance. The grafted polyurethanic colour resin can be used to performing very precise dental models that also are very resistant to rotating and hands instruments, rich in dental details, and can be personalized by resin colour.

Description

DESCRIPTION
POLYURETHANIC COLOUR RESIN FOR PRECISE DENTAL MODELS
TECHNICAL FIELD
Polyurethanic colour resin invention relates to resin that can be employed in dental field for performing teeth models. In the operation of building teeth models it is very essential that models are very precise, rich in details, can be worked by hand and rotating instruments, can be personalized, always are precise. Such precautions are necessary to prevent imperfect teeth models such as may be caused by very little fluid, very little precise, very sensitivity humid, very weak, very irregular surface.
Polyurethanic colour resin allow to have teeth models very precise, very workable, very hard, with very regular surface.
BACKGROUND ART
The prior art : stone provided dental models very little precise, with irregular surface and very little resistant to rotating instruments.
: instant loaded polyurethanic resin provided dental models little precise, with incostant precision. : epoxy opaque resin provided dental models little precise, with little workability, sensitivity to humidity, and a little toxic.
: pre-loaded polyurethanic resin provided good dental models but the resin is very sensivity to humidity.
DISCLOSURE OF INVENTION
In accordance with the present invention, we provide a pre-loaded polyurethanic resin that is not sensitivity to humidity and that allow the maintenance for long time of property resin.
Our improved polyurethanic resin possesses the advantage that we can perform many dental models and every dental models are very precise, very resistant to rotating and hands instruments, rich in details, have regular surface and can be personalized by colour.
Our present invention consisting of adding the vinyltrimethoxysilane to pre-loaded polyurethanic resin to modify polyurethanic by grafting to the polymer backbone, equipping the polymer with pendant trimetho xysilyl groups that may be used as moisture-activated crosslinking sites.
Benefits of Crosslinking
Higher maximum use temperature Reduced deformation under load ( creep )
Improved chemical resistance Superior environmental stress crack resistance
Increased abrasion resistance
Improved impact strenght
Memory charactheristics (for shrink film and tubing )
Applications
First, we have grafting (reacting ) basic polyurethanic resin to vinyltrimethoxysilane.
Second, we have storing the resin grafted before use for performing dental models.
The grafted resin is stable and can be shipped, handled, and stored, if properly packaged to exclude moisture for many months.
Third, when we have perform dental models we make react the grafted resin to resin catalysts. Fourth, the grafted resin can be coloured by specific colour resin and even can be pouring to alginated impressions.
Fifth, the grafted resin produce a more fluidity of that resin that allows to get rich details from dental impressions.
Sixth, the grafted resin produce precise dental models and very resistance to hands and rotating instruments for improved chemical resistance, reduced deformation under load ( creep ), superior enviromental stress crack resistance, increased abrasion resistance, improved impact strenght and improved shrinkage.
Seventh, the grafted resin can be poured to making more layers. Eighth, the grafted resin produce dental models with improved surface for less microporosity and microgranularity. BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 represents a container with basic polyurethanic resin, FIG. 2 a bottle with viniltrimethoxysilane, and FIG. 2 a container with catalysts polyurethanic resin.
In next drawings FIG. 2 is pouring in FIG. 1. FIG. 4 represents a container with basic polyurethanic resin mixed to viniltrimethoxysilane, and FIG. 5 represents a measuring vessel. FIG. 4 and FIG. 3 are pouring in FIG. 5.
FIG. 6 represents a measuring vessel with basic polyurethanic resin mixed to viniltrimethoxysilane and catalysts polyurethanic resin, FIG.7 represents an impression tray with silicon impression, FIG.8 represents a dental model.
FIG. 6 is pouring on FIG. 7 and FIG. 8 is the finished result(dental model).
FIG. 9 represents a colour polyurethanic, FIG. 10 represents a measuring vessel with basic polyurethanic resin mixed to a viniltrimethoxysilane and colour polyurethanic, FIG. 11 represents dental colour model.
FIG. 4 and FIG. 9 are pouring on FIG. 5; FIG. 3 is pouring on FIG. 10 and FIG. 11 is the finished result(dental colour model).
BEST MODE FOR CARRYING OUT THE INVENTION First of all we have pouring the vinyltrimethoxysilane, in liquid form, by appropriate dose on basic polyurethanic resin, in fluid form, and mixing for a short time by a carve until to make all homogeneous. Then we can pouring the basic polyurethanic resin grafted (by vinyltrimethoxysilane) and the catalysts polyuretanic resin, in fluid form, on a measuring vessel in according to recommended ratios, and mixing for a short time by a carve.
After we pour the contents of measuring vessel on impression tray with silicon, or other material, teeth impression and we awaiting for two or three hours that resin hardens.
The final result is a very precise dental model.
It is possible performing coloured dental model.
In this case after you have poured on measuring vessel the basic polyurethanic resin grafted (and before pouring the catalysts polyurethanic resin), you have adding the colour polyurethanic and mixing, using a bit amount of colour (less than 3%). Continuing the operations as above written, you will get coloured dental model. It is also possible performing dental models with more layers, even coloured. In that case you can pouring a first layer of basic polyurethanic resin grafted and catalysts polyurethanic resin and after hardening you can pouring a second, or more layer of basic polyurethanic resin grafted and catalysts polyurethanic resin.

Claims

1) A polyurethanic colour resin for precise models in dental fields that allows to perform very precise dental models instead of little and inconstant precise, with irregular surface and very little resistant to rotating instruments, dental models; characterized in that a base polyurethanic resin to which viniltrimethoxysilane is adding for produce a grafted resin that react to resin catalysts for performing very precise dental models. 2) a polyurethanic colour resin for precise models in dental fields, as claimed in claim 1, characterized in that is resistant to moisture for performing good dental models.
3) a polyurethanic colour resin for precise models in dental fields, as claimed in foregoing claims, characterized in that is resistant to alginated dental impressions for pouring polyurethanic colour resin to alginated dental impressions.
4) a polyurethanic colour resin for precise models in dental fields, as claimed in foregoing claims, characterized in that is a grafted resin that can be coloured by specific colour resin for performing coloured dental models that can be personalized.
5) a polyurethanic colour resin for precise models in dental fields, as claimed in foregoing claims, characterized in that is a grafted resin that get a lot of fluidity for performing dental models rich in dental details. 6) a polyurethanic colour resin for precise models in dental fields, as claimed in foregoing claims, characterized in that is a grafted resin that has adesivity and can be poured more time for performing dental models by more layers.
PCT/IT2002/000084 2001-02-14 2002-02-12 Polyurethanic colour resin for precise dental models WO2002064101A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001RM000024U ITRM20010024U1 (en) 2001-02-14 2001-02-14 POLYURETHANE RESIN FOR PRECISION DENTAL TECHNICAL MODELS.
ITRM2001U000024 2001-02-14

Publications (1)

Publication Number Publication Date
WO2002064101A1 true WO2002064101A1 (en) 2002-08-22

Family

ID=11455124

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2002/000084 WO2002064101A1 (en) 2001-02-14 2002-02-12 Polyurethanic colour resin for precise dental models

Country Status (2)

Country Link
IT (1) ITRM20010024U1 (en)
WO (1) WO2002064101A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707529A (en) * 1985-06-27 1987-11-17 The Dow Chemical Company Poly(siloxane)-modified epoxy resins
WO1988003405A2 (en) * 1986-11-06 1988-05-19 Schütz-Dental GmbH Partly-prosthetic metal connecting element
US5085811A (en) * 1988-11-07 1992-02-04 Minnesota Mining And Manufacturing Company Method of reducing surface defects in a positive dental model
US5120229A (en) * 1990-09-10 1992-06-09 The Curators Of The University Of Missouri Dental teaching model
WO1996015179A2 (en) * 1994-11-04 1996-05-23 The Kerr Corporation Radiation curable molding compositions
DE19502751A1 (en) * 1995-01-23 1996-08-08 Ivoclar Ag Mfg. plastic models for producing dental prostheses
US5661200A (en) * 1991-03-22 1997-08-26 Phillips Petroleum Company Glass-reinforced silane, carboxylic acid or anhydride-grafted branched alpha-olefin polymers with epoxy resin
WO1997034278A1 (en) * 1996-03-12 1997-09-18 Frank Hunter Dental models
DE19912251A1 (en) * 1999-03-18 2000-09-21 Espe Dental Ag Two-component preparations for the manufacture of dental models

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707529A (en) * 1985-06-27 1987-11-17 The Dow Chemical Company Poly(siloxane)-modified epoxy resins
WO1988003405A2 (en) * 1986-11-06 1988-05-19 Schütz-Dental GmbH Partly-prosthetic metal connecting element
US5085811A (en) * 1988-11-07 1992-02-04 Minnesota Mining And Manufacturing Company Method of reducing surface defects in a positive dental model
US5120229A (en) * 1990-09-10 1992-06-09 The Curators Of The University Of Missouri Dental teaching model
US5661200A (en) * 1991-03-22 1997-08-26 Phillips Petroleum Company Glass-reinforced silane, carboxylic acid or anhydride-grafted branched alpha-olefin polymers with epoxy resin
WO1996015179A2 (en) * 1994-11-04 1996-05-23 The Kerr Corporation Radiation curable molding compositions
DE19502751A1 (en) * 1995-01-23 1996-08-08 Ivoclar Ag Mfg. plastic models for producing dental prostheses
WO1997034278A1 (en) * 1996-03-12 1997-09-18 Frank Hunter Dental models
DE19912251A1 (en) * 1999-03-18 2000-09-21 Espe Dental Ag Two-component preparations for the manufacture of dental models

Also Published As

Publication number Publication date
ITRM20010024U1 (en) 2002-08-14
ITRM20010024V0 (en) 2001-02-14

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