CA2378419A1 - Process for producing a prosthesis and a prosthesis material - Google Patents
Process for producing a prosthesis and a prosthesis material Download PDFInfo
- Publication number
- CA2378419A1 CA2378419A1 CA002378419A CA2378419A CA2378419A1 CA 2378419 A1 CA2378419 A1 CA 2378419A1 CA 002378419 A CA002378419 A CA 002378419A CA 2378419 A CA2378419 A CA 2378419A CA 2378419 A1 CA2378419 A1 CA 2378419A1
- Authority
- CA
- Canada
- Prior art keywords
- prosthesis
- weight percent
- base plate
- wax
- impression
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
-
- 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
- A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/003—Apparatus for curing resins by radiation
-
- 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
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Dentistry (AREA)
- Dental Preparations (AREA)
- Dental Prosthetics (AREA)
- Materials For Medical Uses (AREA)
Abstract
Process for producing a prosthesis comprised of the:
a1) taking of a precision impression by means of an impression mass, b1) creation of a working model, c1) application of a base plate of a hardenable prosthesis material and subsequent hardening.
d1) application of an insulating film on the base plate, e1) obtaining a tooth arrangement in wax on the insulated base plate, f1) external framework of the teeth arches using an embedding compound;
g1) boiling out of the wax index and removal of the insulation film;
h1) filling of the hollow space resulting after the boiling out of the wax with the prosthesis material and subsequent hardening;
or a2) taking of a precision impression by means of an impression mass;
b2) creation of a working model;
c2) application of a base plate of a light-hardenable prosthesis material and subsequent hardening;
d2) obtaining a tooth arrangement in light-hardenable prosthesis material and subsequent hardening.
a1) taking of a precision impression by means of an impression mass, b1) creation of a working model, c1) application of a base plate of a hardenable prosthesis material and subsequent hardening.
d1) application of an insulating film on the base plate, e1) obtaining a tooth arrangement in wax on the insulated base plate, f1) external framework of the teeth arches using an embedding compound;
g1) boiling out of the wax index and removal of the insulation film;
h1) filling of the hollow space resulting after the boiling out of the wax with the prosthesis material and subsequent hardening;
or a2) taking of a precision impression by means of an impression mass;
b2) creation of a working model;
c2) application of a base plate of a light-hardenable prosthesis material and subsequent hardening;
d2) obtaining a tooth arrangement in light-hardenable prosthesis material and subsequent hardening.
Description
Process fox Producing a Prosthesis and a Prost>t<esis .IViatet-ial The invention relates to a process for producing a prosthesis, a prosthesis material and its apph.cations.
J In general, three principally d~i~erent material classes are larown in the art for carrying out total prosthetic work. They are: t~.vo-component rnateziaJs based on polymethyl methacrylate (flv~l.
YMMA-free thermal- hardening materials as well as injection molding masses suitable for thermoplastic processing.
~Nhat all these materials have ixx coznxnon is the work that is necessary with xegard to the preparanons fox plastics processing.
After taking a precision impression on the patient and creating a working model made of plaster, a so-caJ.lcd base plate is applied and polyrnerized on the plaster model by means of a hardenable material.
Wus base plate is the foundation fox the setting up of the prosthesis in wax, which follows later, and provides sufficient stability even for brief try-ons in the patient's zn~outt~.
However, it is disadvantageous that, before the conversion of the wax impression into plastic, this base plate must be removed and replaced with wax that is to be boiled out.
". . , ~,~. ,.,. ,',",;, , .. , ,:.,.: . .: ._ .: ".. ,. ,~.r, :, .., Ln another step, the work mounted in wax is completely embedded in plaster and, foliowir~g the hardening of the plaster, the wax i:; removed by way of heating. The plastic is then intzoduced and solidified in accordance with various methods ixtside the hollow space achieved in this manner.
The following aspects of these traditional processes are disadvantageous:
- YIle complete embedding with the use of plaster is time-consuming because ofi the necessary setring time, due to the incompatibility of the plaster, Which contains water, and the plastic, it is necessa;
to use an insulation agent, which repeatedly causes diseolorations of the plastic due to insufficient insulatyon, - the use of light-hardening materials is precluded and any control during the tillixxg process a not possible.
It is pazticularly disadvantageous that all plastic must always be introduced and polymerized in one step, which has a negative effect on the form stability due to polyzz~eritzatiot~ shrinkage and thermal o shr7I11Ca~1:.
$ascd on the above, there results the objective to provide, in particular a process for producing a prosthesis and a related prosthesis material that no longer have, at least in part, the above-mentioned disadvantages. This applies especially with regard to the forni stability, which is a4vaiting improvement.
According to the invention, this objective is achieved with a process as claimed in claim 1. a prosthesis txxaterial as claimed in claim 8 and with the applications as claimed in claims 9 and 10.
according to the invention, first, an. anatomic impression of the jaw of a patient is taken usinU a ,s. .. ~ ,, . :. ,. : , ..
conventional impression mass, fox example, addition cross-linl.-ing sxlicozze or algW ate.
After this, a working model, consisting iz~, particular of plaster, is constructed. ,A. base plate of a hardenablc prosthesis material, especially of a material in accordance with the invention (see below J.
is then applied and subsequexztly haxdened. 'This constitutes the core of present invention, i.e. the usr of a prostheszs material, in particular a material in according to the invention, as base plate material.
!fin insulating filzxa is n.ow applied to the base plate 1n order to subsequently obtain a teeth impression m wax on the insulated base plate. The teeth arches are held frozxi the outside using an embedding J compound, for example, a transparent addition cross-linking silicone or light-hardenizag embedding material on methacrylate basis. ,A.~tcrWards, the wax impression is boiled out and the ixzsulating film ~s removed in order to now 'fall the hollow space resulting from the boiling out of the ~~ax with the prosthesis msterial and to subsequently harden the prosthesis material.
In another variant of the process according to the invention, first, a precision irnprESSion is taken using an impression mass, tbezz. a working model is created, a base plate of a light-hardenable prosthesis n~,aterial is applied azid hardened in order to, finally, obtain and harden a tooth airazyemem in the light-harden,ablc prosthesis material.
The following embodiments of the process according to the invention have proven themselves in puactical applications and have, therefore, turned out to be advantageous.
First arid foremost, it is advantageous if in the last process step of the second variant, the tooth arranoenzent is created step by step, while taking into consideration the jaw tntios, ix~. particular using an articulator, aad hardened poitnt-by-point with light, because only this ensures the correct position with respect to the antagotlzst teeth; and a displacexzzent due to shrinkage can be avoided by way of _g_ . . .. , ., ,.. : .. . . . . . , . ;,. .: r~ : , - v .,'. . -.~,e ~,.-~.~~;:.;y~-.:r . - .. .: ,- ..,.,. . . .. ,..
point-by-point hardening.
E;urcherrxxore, it is also advantageous if, in a final step, the prosthesis as a whole is hardened again umn,g licht irradiation following the point-by-point hardening in order to achieve a homogenous polymerization conversion that is needed for obtaining sufficient stabilities.
:also advantageous is the use of a compound for the base plate material that is comprised of the following components:
1. multifunctional urethane zxtethactylate/-actylate: 5-46 weight percent, ?. nnulti.functional, high-molecular acrylic resin: 2.5-20 weight percezrt, 3. multiiunctiona.l reactive dilution agent: 5-15 areight percent, :+. Bas-GM,.A. and/or ethoxylated derivatives: l,-15 weight percent, p. filler material: 2-15 weight percent, G. or?anic filler zn.atezial on 1?l4iMA/copolymer basis: 5-30 weight percent, '. splinter polymerizate: 0-30 weight percent, S. inorganic glass: 0-10 weight percent, 9. photoinitiator: 0.1-2 weight percent, anal 10. color pigzuent: 0-1 weight percent.
The conc~pounds sct forth under 1. to 10. are specifically:
1:
Aliphatic urethane acrylate/-methaerylate, relative molar mass 400-700 g/mol, viscosity at 23 'C.
10= - 5 x 10'' mess.
J In general, three principally d~i~erent material classes are larown in the art for carrying out total prosthetic work. They are: t~.vo-component rnateziaJs based on polymethyl methacrylate (flv~l.
YMMA-free thermal- hardening materials as well as injection molding masses suitable for thermoplastic processing.
~Nhat all these materials have ixx coznxnon is the work that is necessary with xegard to the preparanons fox plastics processing.
After taking a precision impression on the patient and creating a working model made of plaster, a so-caJ.lcd base plate is applied and polyrnerized on the plaster model by means of a hardenable material.
Wus base plate is the foundation fox the setting up of the prosthesis in wax, which follows later, and provides sufficient stability even for brief try-ons in the patient's zn~outt~.
However, it is disadvantageous that, before the conversion of the wax impression into plastic, this base plate must be removed and replaced with wax that is to be boiled out.
". . , ~,~. ,.,. ,',",;, , .. , ,:.,.: . .: ._ .: ".. ,. ,~.r, :, .., Ln another step, the work mounted in wax is completely embedded in plaster and, foliowir~g the hardening of the plaster, the wax i:; removed by way of heating. The plastic is then intzoduced and solidified in accordance with various methods ixtside the hollow space achieved in this manner.
The following aspects of these traditional processes are disadvantageous:
- YIle complete embedding with the use of plaster is time-consuming because ofi the necessary setring time, due to the incompatibility of the plaster, Which contains water, and the plastic, it is necessa;
to use an insulation agent, which repeatedly causes diseolorations of the plastic due to insufficient insulatyon, - the use of light-hardening materials is precluded and any control during the tillixxg process a not possible.
It is pazticularly disadvantageous that all plastic must always be introduced and polymerized in one step, which has a negative effect on the form stability due to polyzz~eritzatiot~ shrinkage and thermal o shr7I11Ca~1:.
$ascd on the above, there results the objective to provide, in particular a process for producing a prosthesis and a related prosthesis material that no longer have, at least in part, the above-mentioned disadvantages. This applies especially with regard to the forni stability, which is a4vaiting improvement.
According to the invention, this objective is achieved with a process as claimed in claim 1. a prosthesis txxaterial as claimed in claim 8 and with the applications as claimed in claims 9 and 10.
according to the invention, first, an. anatomic impression of the jaw of a patient is taken usinU a ,s. .. ~ ,, . :. ,. : , ..
conventional impression mass, fox example, addition cross-linl.-ing sxlicozze or algW ate.
After this, a working model, consisting iz~, particular of plaster, is constructed. ,A. base plate of a hardenablc prosthesis material, especially of a material in accordance with the invention (see below J.
is then applied and subsequexztly haxdened. 'This constitutes the core of present invention, i.e. the usr of a prostheszs material, in particular a material in according to the invention, as base plate material.
!fin insulating filzxa is n.ow applied to the base plate 1n order to subsequently obtain a teeth impression m wax on the insulated base plate. The teeth arches are held frozxi the outside using an embedding J compound, for example, a transparent addition cross-linking silicone or light-hardenizag embedding material on methacrylate basis. ,A.~tcrWards, the wax impression is boiled out and the ixzsulating film ~s removed in order to now 'fall the hollow space resulting from the boiling out of the ~~ax with the prosthesis msterial and to subsequently harden the prosthesis material.
In another variant of the process according to the invention, first, a precision irnprESSion is taken using an impression mass, tbezz. a working model is created, a base plate of a light-hardenable prosthesis n~,aterial is applied azid hardened in order to, finally, obtain and harden a tooth airazyemem in the light-harden,ablc prosthesis material.
The following embodiments of the process according to the invention have proven themselves in puactical applications and have, therefore, turned out to be advantageous.
First arid foremost, it is advantageous if in the last process step of the second variant, the tooth arranoenzent is created step by step, while taking into consideration the jaw tntios, ix~. particular using an articulator, aad hardened poitnt-by-point with light, because only this ensures the correct position with respect to the antagotlzst teeth; and a displacexzzent due to shrinkage can be avoided by way of _g_ . . .. , ., ,.. : .. . . . . . , . ;,. .: r~ : , - v .,'. . -.~,e ~,.-~.~~;:.;y~-.:r . - .. .: ,- ..,.,. . . .. ,..
point-by-point hardening.
E;urcherrxxore, it is also advantageous if, in a final step, the prosthesis as a whole is hardened again umn,g licht irradiation following the point-by-point hardening in order to achieve a homogenous polymerization conversion that is needed for obtaining sufficient stabilities.
:also advantageous is the use of a compound for the base plate material that is comprised of the following components:
1. multifunctional urethane zxtethactylate/-actylate: 5-46 weight percent, ?. nnulti.functional, high-molecular acrylic resin: 2.5-20 weight percezrt, 3. multiiunctiona.l reactive dilution agent: 5-15 areight percent, :+. Bas-GM,.A. and/or ethoxylated derivatives: l,-15 weight percent, p. filler material: 2-15 weight percent, G. or?anic filler zn.atezial on 1?l4iMA/copolymer basis: 5-30 weight percent, '. splinter polymerizate: 0-30 weight percent, S. inorganic glass: 0-10 weight percent, 9. photoinitiator: 0.1-2 weight percent, anal 10. color pigzuent: 0-1 weight percent.
The conc~pounds sct forth under 1. to 10. are specifically:
1:
Aliphatic urethane acrylate/-methaerylate, relative molar mass 400-700 g/mol, viscosity at 23 'C.
10= - 5 x 10'' mess.
Polyester tnurethane acrylate with a relative molar mass of 900-1SUU glraol, viscosity at 60 °C: 10' -x 10" mPas.
J
.i Generally multifunctional, aliphatic. methacrylate/acrylate, glycol dixn.ethacrylate, for example, n-iethylene glycol dimethactylate, dimeihacrylates containing alkyl chains such as dodecan diol dimethaczylate, polyether polyol aerylates, for example, pentaexythritol te~aacxylate.
.9 his-GVIA or ethoxylated Bis-GMA dezivatives.
S
1'yrogenie Si0=. sm-face according to HET 50-250 mz/g, primary particle size 7-4.0 z~u~, compacted bulk density: 50-150 g/1; can be advantageously hydrophobized or functionalized with silanes.
preferably with methacryl silanes.
G:
.~dvantagoously, primary particle sixes of < 20 l.lmv> delivered spray-dried in agglomerated form.
Core-shell Products:
Cross-linked PMMA core with parts of the coxr~.ponerlts referred under 1 andlor 3: P11~IMA shell with parts of alkyl nn.ethacrylates, far exazzxple, butyl methacrylate.
J
.i Generally multifunctional, aliphatic. methacrylate/acrylate, glycol dixn.ethacrylate, for example, n-iethylene glycol dimethactylate, dimeihacrylates containing alkyl chains such as dodecan diol dimethaczylate, polyether polyol aerylates, for example, pentaexythritol te~aacxylate.
.9 his-GVIA or ethoxylated Bis-GMA dezivatives.
S
1'yrogenie Si0=. sm-face according to HET 50-250 mz/g, primary particle size 7-4.0 z~u~, compacted bulk density: 50-150 g/1; can be advantageously hydrophobized or functionalized with silanes.
preferably with methacryl silanes.
G:
.~dvantagoously, primary particle sixes of < 20 l.lmv> delivered spray-dried in agglomerated form.
Core-shell Products:
Cross-linked PMMA core with parts of the coxr~.ponerlts referred under 1 andlor 3: P11~IMA shell with parts of alkyl nn.ethacrylates, far exazzxple, butyl methacrylate.
..'.,..; . ., ,. . , ,. , ,.
Emulsion Pol~anerizates:
P11~LMA with parts of alkyl methacrylate. for example, isobutyl tnetltacrylate (cross-linked with parts of multifunetiozral rnethacrylates/acrylates, for example, aliphatic dimethacrylates or 51yco1 dunethacrylates).
7:
5plintex Polvzxicrizates Composit7on: aliphatic dimethacrylate, for example, dodecan diol dimethacrylate, pyrogenic SiO;, a~
described under item 5. This mi:~ture is polymezi.2ed, ground, and silaz~iz~d and can then be used 3s filler matezial; primary particle size 15-40 l..lur. The preferred paxt of sp).inter polymeri7.ate is ~-3U
weight percent.
Inorsanic Glasses Barium-aluminum-boron silicates s 5 ).zm, preferably s 1 uzxa, preferably surface-modified, for e;cample, with silanes containing methacxyl groups.
9:
Possible Usa$le ~hotoinitiator Sv ms Champerehix~,on, actyl phophine oxide/bisacyl pkropbuuae oxide derivatives such as hydrosy allyl phenones, each, advantageously in combination with a synergist containing azxuiz~.e, for example. allcvl amino ben;coate.
Emulsion Pol~anerizates:
P11~LMA with parts of alkyl methacrylate. for example, isobutyl tnetltacrylate (cross-linked with parts of multifunetiozral rnethacrylates/acrylates, for example, aliphatic dimethacrylates or 51yco1 dunethacrylates).
7:
5plintex Polvzxicrizates Composit7on: aliphatic dimethacrylate, for example, dodecan diol dimethacrylate, pyrogenic SiO;, a~
described under item 5. This mi:~ture is polymezi.2ed, ground, and silaz~iz~d and can then be used 3s filler matezial; primary particle size 15-40 l..lur. The preferred paxt of sp).inter polymeri7.ate is ~-3U
weight percent.
Inorsanic Glasses Barium-aluminum-boron silicates s 5 ).zm, preferably s 1 uzxa, preferably surface-modified, for e;cample, with silanes containing methacxyl groups.
9:
Possible Usa$le ~hotoinitiator Sv ms Champerehix~,on, actyl phophine oxide/bisacyl pkropbuuae oxide derivatives such as hydrosy allyl phenones, each, advantageously in combination with a synergist containing azxuiz~.e, for example. allcvl amino ben;coate.
1G:
Cotnbi.nation of organic color pigments and dye as well as inorganic opacifyirtg agents.
Opaciijing agent: titanium oxido Red pigments: organic petyiene pigments Blue: anthraquinone dye Suitable for use as inorganic filler ixtaterials are only copolymers in the form of bead polymerizates ..vlth cross-linker parts of > 5 weight percent: otherwise there will be an extreme increase in viscos~t~~
over time. due to undesired swelling events. Particularly suitable in the present context are so-called .J core-shell polymers, consisting of a more intensely cross-linked core and a less intensely or not-cross -linked shell. This allows for defined swelling. Parbiculatly suitable are also emulsion polymiers wnh defined areas showing a higher degree of cross-linking , which also only swell to a limited degree locally. Due to this partial swelling, the filler materials are incorporated into tbu monomer matriw in such a manner that very high impact resistance values of up to approx. 8 1:J/m' can, be obtained.
Product examples are bead polynxenzates; for examvple, of the plexigum product line by the Rohm compattv, T~arznstadt, [GemnanyJ) which have proven themselves as suitable in the tests.) TMe grain sizes of suitable polyxxaers are advantageously ix~ the range of s 50 ~~.m, especially s 20 ~~m.
tis an alternative, it is possible to use silicone-modified polymers, also on the basis of core-shell products.
The splinter polymer that is to be used consists of a prepolymerized mixture of multifunctional methacrylates or acrylates with, parts of inorganic fiber matezial. Used as monomers are mulniunetional methacrylateslacrylates, and used as filler materials are pyxogetuc silicon dioxides.
Tire polymerized and ground mixtures are silanized for their use as filler materials, i.e. they are coated ,.
,..; . ,,..;,, , , ;,,;~:;: , , . ,. ~ . . ,,;..,.... ,,.~ ~:~a a, ..,. , ........~....._.~....~.-, -" f ,..f-, r" -r ... ",-~,. . .
with a fim.ctional layer that conta~ios methacrylate_ 'Ibis way, it is possible to achieve a chernical bc~m bc-r~een the splinter polymeri~.ate and the monomer matrix of the base plate matenal.
The gain sizes of the splinter pol«nerizatcs that are to be used are ~,enerally s 30 Vim; and achievin g.
:p in particular, a transparency that is as high as possible is an importarti criterion. Th,e transparency of the f tier material in layer thiclrnesses of 3 n1m Should be at least at 30-40%.
Optimal for use are inorganic glasses that are normally employed as central tiller materials for composite materials. Quantities of under 10 weight percent are preferable, because relule these Cl inorganic filler matez-ials improve the mechanic properties, at the sanae time, hey also have a negau~>e impact on pwameters Such as brittleness, working properties, and plaque affinity.
Suitabhfor use are, for example, ban'turn. glasses and bariurrx-aluznincnn-boron silicates, with dram sizes of s 5 ~,.tixl, especially s 1 urn.
The advantages of the process according to the inrrention and of the prosthesis plastic according to the invention are obvious:
It is evident, first of all, that the wax index is already done on the later prosthesis base, which means that the precision of the fit, whom W a prosthesis is tried on by the para.etat, corresponds to the tit of the I;~cer prosthesis.
Furthermore, the exchange of the base plate fox the wax is eliminated, resulting in higher accuracs~
coupled with noticeable time savings.
..g_ ...~...~,.w...-._......,-. . W ~._.... . .w_~-"..,......-~..,-~..
:~,n after-the-fact lining Step, which is neces saiy in practice, is often eliminated before the creation of the w~a.~ index.
'1't~c-. polynnerization shrxt~age o~E°th~ entiro prosthesis is reduced mia the mufti-step production.
uToreover, at least with the second 'variant of the process according to the invention, it is possxblv tv carry out the work step by step; arid the piece by piece polymerization prevents any material flou~-o:.
Eecause the work lays open duriz~' the production, a direct control of the results of any corresponding a work step is possible.
Also, due to the swelling capacity acid/or the possibility of ehernical bonding of the filler materials, a homogeneous material with high fx~x~.ess is acb.:ieved.
The adjusted viscosity of the paste remains constant over a long period of time due to the defined swelling capacity of the splinter polynaerizate.
'IMe large parts of organic fiber material ensuxe, for example, in reference to the optical properries, a high compatibility i:is-a-vas the matrix. This way, it is possible to achieve the hardezting depths that are necessary for use as prosthesis material.
Duc: to the only szxxall azxtouut of parts of inorganic filler materials, the prefabricated plat.~;s arc still stable in terms of their dimensions during storage, but they do not yet show the disadvantaies with respect to plaque affinity and bad polishing properties of conventional composites.
.;.: .:. :,.:: r;!".'',,:;a,;.~;.,; ,. .._....,. .,, _,,,, :... , Consequently. the advantages of usixag the prosthesis matexial according to 211e invention for partial prosthesis repair and orthodontic work is evident.
The indention vrill be explained tun more detail irt reference to the following example:
A.llocatxon:Composition: ~~
_ I
Component M~'~'e Mixtuxe Mixture 1 2 ., f 1.
Urethane dimethacrylate 45 A.0 3 8.5 Polyester urethane 2riaciylate:5.2 ~ 4 ,1 ., . Oligo ether tetraacrylate 6.2 6 S
T'rimethylol prop:~ne trimethacrylate7.8 7,5 Btlloxylated BIS-GMA 3.2 3 2. 3 Pvrogeni.c 5102 11.1 14.5 12 1'hotoinitiatorslstabilizers0.5 0.5 0.S
Color pigments 0.006 O.OOG 0.006 t Cross-linked bead polymezuzate21 17.5 1.~_'r Splinter polymerizate - 6 10 ~
Inorganic ulna-fine glass - - S
Mechanical Strength ' Flexural strength 70 ~7 7G t Init. EN ZS4 1~G7 > 60 MPa E-module ~ 2100 2700 2500 t Iz~it. BN IS4 1567 > 2000 MPa :..: :.,. ;,., ., .:; ., :....: ::.:..
Cotnbi.nation of organic color pigments and dye as well as inorganic opacifyirtg agents.
Opaciijing agent: titanium oxido Red pigments: organic petyiene pigments Blue: anthraquinone dye Suitable for use as inorganic filler ixtaterials are only copolymers in the form of bead polymerizates ..vlth cross-linker parts of > 5 weight percent: otherwise there will be an extreme increase in viscos~t~~
over time. due to undesired swelling events. Particularly suitable in the present context are so-called .J core-shell polymers, consisting of a more intensely cross-linked core and a less intensely or not-cross -linked shell. This allows for defined swelling. Parbiculatly suitable are also emulsion polymiers wnh defined areas showing a higher degree of cross-linking , which also only swell to a limited degree locally. Due to this partial swelling, the filler materials are incorporated into tbu monomer matriw in such a manner that very high impact resistance values of up to approx. 8 1:J/m' can, be obtained.
Product examples are bead polynxenzates; for examvple, of the plexigum product line by the Rohm compattv, T~arznstadt, [GemnanyJ) which have proven themselves as suitable in the tests.) TMe grain sizes of suitable polyxxaers are advantageously ix~ the range of s 50 ~~.m, especially s 20 ~~m.
tis an alternative, it is possible to use silicone-modified polymers, also on the basis of core-shell products.
The splinter polymer that is to be used consists of a prepolymerized mixture of multifunctional methacrylates or acrylates with, parts of inorganic fiber matezial. Used as monomers are mulniunetional methacrylateslacrylates, and used as filler materials are pyxogetuc silicon dioxides.
Tire polymerized and ground mixtures are silanized for their use as filler materials, i.e. they are coated ,.
,..; . ,,..;,, , , ;,,;~:;: , , . ,. ~ . . ,,;..,.... ,,.~ ~:~a a, ..,. , ........~....._.~....~.-, -" f ,..f-, r" -r ... ",-~,. . .
with a fim.ctional layer that conta~ios methacrylate_ 'Ibis way, it is possible to achieve a chernical bc~m bc-r~een the splinter polymeri~.ate and the monomer matrix of the base plate matenal.
The gain sizes of the splinter pol«nerizatcs that are to be used are ~,enerally s 30 Vim; and achievin g.
:p in particular, a transparency that is as high as possible is an importarti criterion. Th,e transparency of the f tier material in layer thiclrnesses of 3 n1m Should be at least at 30-40%.
Optimal for use are inorganic glasses that are normally employed as central tiller materials for composite materials. Quantities of under 10 weight percent are preferable, because relule these Cl inorganic filler matez-ials improve the mechanic properties, at the sanae time, hey also have a negau~>e impact on pwameters Such as brittleness, working properties, and plaque affinity.
Suitabhfor use are, for example, ban'turn. glasses and bariurrx-aluznincnn-boron silicates, with dram sizes of s 5 ~,.tixl, especially s 1 urn.
The advantages of the process according to the inrrention and of the prosthesis plastic according to the invention are obvious:
It is evident, first of all, that the wax index is already done on the later prosthesis base, which means that the precision of the fit, whom W a prosthesis is tried on by the para.etat, corresponds to the tit of the I;~cer prosthesis.
Furthermore, the exchange of the base plate fox the wax is eliminated, resulting in higher accuracs~
coupled with noticeable time savings.
..g_ ...~...~,.w...-._......,-. . W ~._.... . .w_~-"..,......-~..,-~..
:~,n after-the-fact lining Step, which is neces saiy in practice, is often eliminated before the creation of the w~a.~ index.
'1't~c-. polynnerization shrxt~age o~E°th~ entiro prosthesis is reduced mia the mufti-step production.
uToreover, at least with the second 'variant of the process according to the invention, it is possxblv tv carry out the work step by step; arid the piece by piece polymerization prevents any material flou~-o:.
Eecause the work lays open duriz~' the production, a direct control of the results of any corresponding a work step is possible.
Also, due to the swelling capacity acid/or the possibility of ehernical bonding of the filler materials, a homogeneous material with high fx~x~.ess is acb.:ieved.
The adjusted viscosity of the paste remains constant over a long period of time due to the defined swelling capacity of the splinter polynaerizate.
'IMe large parts of organic fiber material ensuxe, for example, in reference to the optical properries, a high compatibility i:is-a-vas the matrix. This way, it is possible to achieve the hardezting depths that are necessary for use as prosthesis material.
Duc: to the only szxxall azxtouut of parts of inorganic filler materials, the prefabricated plat.~;s arc still stable in terms of their dimensions during storage, but they do not yet show the disadvantaies with respect to plaque affinity and bad polishing properties of conventional composites.
.;.: .:. :,.:: r;!".'',,:;a,;.~;.,; ,. .._....,. .,, _,,,, :... , Consequently. the advantages of usixag the prosthesis matexial according to 211e invention for partial prosthesis repair and orthodontic work is evident.
The indention vrill be explained tun more detail irt reference to the following example:
A.llocatxon:Composition: ~~
_ I
Component M~'~'e Mixtuxe Mixture 1 2 ., f 1.
Urethane dimethacrylate 45 A.0 3 8.5 Polyester urethane 2riaciylate:5.2 ~ 4 ,1 ., . Oligo ether tetraacrylate 6.2 6 S
T'rimethylol prop:~ne trimethacrylate7.8 7,5 Btlloxylated BIS-GMA 3.2 3 2. 3 Pvrogeni.c 5102 11.1 14.5 12 1'hotoinitiatorslstabilizers0.5 0.5 0.S
Color pigments 0.006 O.OOG 0.006 t Cross-linked bead polymezuzate21 17.5 1.~_'r Splinter polymerizate - 6 10 ~
Inorganic ulna-fine glass - - S
Mechanical Strength ' Flexural strength 70 ~7 7G t Init. EN ZS4 1~G7 > 60 MPa E-module ~ 2100 2700 2500 t Iz~it. BN IS4 1567 > 2000 MPa :..: :.,. ;,., ., .:; ., :....: ::.:..
Claims (10)
1. Process for producing a prosthesis comprised of the:
a1) taking of a precision impression by means of an impression mass, b1) creation of a working model, c1) application of a base plate made of a hardenable prosthesis material and subsequent hardening, d1) application of an insulating film on the base plate, e1) obtaining a tooth arrangement in wax on the insulated base plate, f1) external framework of the teeth arches using an embedding compound;
g1) boiling out of the wax index and removal of the insulation film;
h1) filling of the hollow space resulting after the boiling out of the wax with the prosthesis material and subsequent hardening;
or a2) taking of a precision impression by means of an impression mass:
b2) creation of a working model;
c2) application of a base plate made of a light-hardenable prosthesis material and subsequent hardening;
d2) obtaining a tooth arrangement in light-hardenable prosthesis material and subsequent hardening.
a1) taking of a precision impression by means of an impression mass, b1) creation of a working model, c1) application of a base plate made of a hardenable prosthesis material and subsequent hardening, d1) application of an insulating film on the base plate, e1) obtaining a tooth arrangement in wax on the insulated base plate, f1) external framework of the teeth arches using an embedding compound;
g1) boiling out of the wax index and removal of the insulation film;
h1) filling of the hollow space resulting after the boiling out of the wax with the prosthesis material and subsequent hardening;
or a2) taking of a precision impression by means of an impression mass:
b2) creation of a working model;
c2) application of a base plate made of a light-hardenable prosthesis material and subsequent hardening;
d2) obtaining a tooth arrangement in light-hardenable prosthesis material and subsequent hardening.
2. Process as claimed in claim 1 wherein, in the process step (d2), the tooth arrangement is mounted step by step taking into consideration the jaw ratios and hardened point-by-point using light.
3. Process as claimed in claim 2 wherein, after the point-by-point hardening, in the end, the prosthesis is hardened once more as a whole using light irradiation.
4. Process as claimed in one of the claims 1 to 3 wherein a compound consisting of the following components is used as base material:
1. multifunctional urethane methacrylate/-acrylate: 5-46 weight percent, 2. multifunctional, high-molecular acrylic resin: 2.5-20 weight percent, 3. multifunctional reactive dilution agent: 5-15 weight percent, 4. Bis-GMA, and/or ethoxylated derivatives: 1-15 weight percent,
1. multifunctional urethane methacrylate/-acrylate: 5-46 weight percent, 2. multifunctional, high-molecular acrylic resin: 2.5-20 weight percent, 3. multifunctional reactive dilution agent: 5-15 weight percent, 4. Bis-GMA, and/or ethoxylated derivatives: 1-15 weight percent,
5. filler material: 2-15 weight percent,
6. organic filler material on PMMA/copolymer basis: 5-30 weight percent,
7. splinter polymerizate: 0-30 weight percent,
8. inorganic glass: 0-10 weight percent,
9. photoinitiator: 0.1-2 weight percent, and
10. color pigment: 0-1 weight percent.
5. Process as claimed in 4 wherein cross-linked core-shell polymers ox cross-linked emulsion polymerizates are used as organic filler material.
6. Process as claimed in claims 4 to 5 wherein the grain size diameter of the organic filler material is <= 50 µm. preferably <= 20 µm.
7. Process as claimed in one of the claims 4 to 6 wherein the grain size diameter of the inorganic glass is <= 5 µm, preferably <= 1 µm.
8. Prosthesis material wherein said material has a composition according to one of the claims 4 to 7.
9. Use of a prosthesis material as claimed in claim 3 as the base plate material for a process as claimed in one of the claims 1 to 7.
10. Use of a prosthesis material as claimed in claim 8 for total/partial prosthetic applications, repair work and orthodontics work.
5. Process as claimed in 4 wherein cross-linked core-shell polymers ox cross-linked emulsion polymerizates are used as organic filler material.
6. Process as claimed in claims 4 to 5 wherein the grain size diameter of the organic filler material is <= 50 µm. preferably <= 20 µm.
7. Process as claimed in one of the claims 4 to 6 wherein the grain size diameter of the inorganic glass is <= 5 µm, preferably <= 1 µm.
8. Prosthesis material wherein said material has a composition according to one of the claims 4 to 7.
9. Use of a prosthesis material as claimed in claim 3 as the base plate material for a process as claimed in one of the claims 1 to 7.
10. Use of a prosthesis material as claimed in claim 8 for total/partial prosthetic applications, repair work and orthodontics work.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10114243.9 | 2001-03-22 | ||
| DE10114243A DE10114243B4 (en) | 2001-03-22 | 2001-03-22 | Process for the production of a prosthesis and prosthesis material and its use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2378419A1 true CA2378419A1 (en) | 2002-09-22 |
Family
ID=7678690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002378419A Abandoned CA2378419A1 (en) | 2001-03-22 | 2002-03-22 | Process for producing a prosthesis and a prosthesis material |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US6881360B2 (en) |
| EP (1) | EP1243230A3 (en) |
| JP (1) | JP2002315760A (en) |
| CA (1) | CA2378419A1 (en) |
| DE (1) | DE10114243B4 (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6830976B2 (en) * | 2001-03-02 | 2004-12-14 | Amberwave Systems Corproation | Relaxed silicon germanium platform for high speed CMOS electronics and high speed analog circuits |
| US6946371B2 (en) * | 2002-06-10 | 2005-09-20 | Amberwave Systems Corporation | Methods of fabricating semiconductor structures having epitaxially grown source and drain elements |
| US6982474B2 (en) * | 2002-06-25 | 2006-01-03 | Amberwave Systems Corporation | Reacted conductive gate electrodes |
| ES2279920T3 (en) * | 2002-12-09 | 2007-09-01 | Heraeus Kulzer Gmbh | LACQUERED RESIN OF THE FOTOCURATE TYPE FOR THE SHADOW ADJUSTMENT. |
| US7179847B2 (en) * | 2003-11-13 | 2007-02-20 | 3M Innovative Properties Company | Polymer electrolytes crosslinked by e-beam |
| US7265162B2 (en) * | 2003-11-13 | 2007-09-04 | 3M Innovative Properties Company | Bromine, chlorine or iodine functional polymer electrolytes crosslinked by e-beam |
| JP4429036B2 (en) * | 2004-02-27 | 2010-03-10 | 富士通マイクロエレクトロニクス株式会社 | Manufacturing method of semiconductor device |
| JP4675068B2 (en) * | 2004-07-15 | 2011-04-20 | 株式会社ジーシーデンタルプロダクツ | Resin composition for foundation floor |
| DE102005012825B4 (en) * | 2005-03-17 | 2009-05-07 | Heraeus Kulzer Gmbh | High Impact denture resins and their use |
| DE102006017651A1 (en) * | 2006-04-12 | 2007-10-18 | Heraeus Kulzer Gmbh | Method and device (s) for the production of dental prostheses |
| EP2066258B1 (en) | 2006-09-28 | 2016-11-30 | DENTSPLY International Inc. | Methods of manufacturing dental appliances using surface treating compositions |
| US8647426B2 (en) * | 2006-12-28 | 2014-02-11 | 3M Innovative Properties Company | Dental filler and methods |
| JP2009013115A (en) * | 2007-07-05 | 2009-01-22 | Kuraray Medical Inc | Dental restorative material |
| DE102009037916B4 (en) | 2009-08-12 | 2018-04-26 | Kulzer Gmbh | Production of a negative mold for use in the manufacture of a dental prosthesis |
| US8436073B2 (en) * | 2009-10-06 | 2013-05-07 | Amcol International | Lignite-based foundry resins |
| DE102009056752C5 (en) | 2009-12-04 | 2024-04-04 | Kulzer Gmbh | Manufacture of individual dental prostheses via CAD/CAM and rapid manufacturing/rapid prototyping from data from digital impression taking |
| DE102011106816B9 (en) | 2011-05-30 | 2018-05-30 | Kulzer Gmbh | After curing, fracture-resistant denture base material obtained from autopolymerizing or cold-curing compositions |
| DE102012011371B9 (en) | 2012-06-11 | 2018-10-18 | Kulzer Gmbh | Production of individual dental prostheses via CAD / CAM and rapid manufacturing / rapid prototyping from digitally collected data of the oral situation |
| DE102014105189B4 (en) * | 2014-04-11 | 2016-10-13 | Heraeus Kulzer Gmbh | Preformed denture base blank |
| US9572638B1 (en) | 2014-06-02 | 2017-02-21 | Lloyd T. Anderson | Impression coping spacer and method of dental casting |
| DE102014109234A1 (en) * | 2014-07-01 | 2016-01-07 | Heraeus Kulzer Gmbh | Autopolymerizable prosthesis material and polymerized, fracture-resistant prosthesis material with improved color stability |
| DE102015104440A1 (en) * | 2015-03-24 | 2016-09-29 | Heraeus Kulzer Gmbh | Process for producing dental prostheses and ready-to-use dental material and kit containing the dental material |
| US10492888B2 (en) * | 2015-07-07 | 2019-12-03 | Align Technology, Inc. | Dental materials using thermoset polymers |
| CN110799168B (en) * | 2017-06-20 | 2023-06-23 | 3M创新有限公司 | Radiation curable composition for additive manufacturing process |
| KR102041603B1 (en) * | 2017-10-20 | 2019-11-06 | 박성원 | Composition for forming artificial tooth, method of preparing artificial tooth and artificial tooth prepared thereby |
| AU2019262641A1 (en) | 2018-05-04 | 2020-12-03 | Align Technology, Inc. | Curable composition for use in a high temperature lithography-based photopolymerization process and method of producing crosslinked polymers therefrom |
| US11718744B2 (en) * | 2021-03-26 | 2023-08-08 | Dentca, Inc. | Photo-curable resin compositions containing impact modifier for three dimensional printing and cured dental product made of the same |
| DE102021006273A1 (en) | 2021-12-21 | 2023-06-22 | Lohmann Gmbh & Co. Kg | indicator mix |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2358730A (en) * | 1941-05-26 | 1944-09-19 | Kerr Dental Mfg Co | Method for forming artificial dentures |
| US2423330A (en) * | 1945-04-18 | 1947-07-01 | Levine Charles | Method of making dentures |
| US2491147A (en) * | 1946-11-22 | 1949-12-13 | Austenal Lab Inc | Method of making denture base parts and applying artificial teeth thereto |
| US3083459A (en) * | 1957-09-30 | 1963-04-02 | Mcmurry Marshall | Conformable, reinforced, soft base denture |
| US3083149A (en) * | 1959-10-12 | 1963-03-26 | Universal Oil Prod Co | Method of masking a surface with a salt of a carboxylic acid and an aminoalkane prior to dyeing |
| DE2403211C3 (en) * | 1974-01-23 | 1981-12-24 | Etablissement Dentaire Ivoclar, Schaan | Material for dental purposes |
| US4583947A (en) * | 1983-03-17 | 1986-04-22 | Hazco Development Inc. | Custom dentures and method of making same |
| JPS62117552A (en) * | 1985-11-15 | 1987-05-29 | 株式会社ジーシー | Method for forming bed provided denture |
| US4681543A (en) * | 1986-02-14 | 1987-07-21 | Dentsply Research & Development Corp. | Rapid denture technique |
| US4983334A (en) * | 1986-08-28 | 1991-01-08 | Loren S. Adell | Method of making an orthodontic appliance |
| US4940676A (en) * | 1987-05-15 | 1990-07-10 | Board Of Regents, The University Of Texas System | Ceramic compositions and methods employing same |
| EP0434334B1 (en) * | 1989-12-21 | 1994-02-02 | Minnesota Mining And Manufacturing Company | Dental compositions, a method of making shaped dental articals via photoiniferter polymerization of the dental compositions, and shaped dental articles produced thereby |
| US5430074A (en) * | 1993-09-29 | 1995-07-04 | Jeneric/Pentron, Incorporated | Gum-colored dental composite and dental restoration kit |
| DE4446033C2 (en) * | 1994-12-23 | 1996-11-07 | Heraeus Kulzer Gmbh | Polymerizable dental material |
| DE19502751A1 (en) * | 1995-01-23 | 1996-08-08 | Ivoclar Ag | Mfg. plastic models for producing dental prostheses |
| EP0742001B1 (en) * | 1995-05-11 | 2003-01-08 | JENERIC/PENTRON Incorporated | Colour stable dental restorative materials |
| US5969000A (en) * | 1997-01-17 | 1999-10-19 | Jeneric Pentron Incorporated | Dental resin materials |
| DE19848886C2 (en) * | 1998-10-23 | 2000-11-16 | Heraeus Kulzer Gmbh & Co Kg | Light-polymerizable one-component dental material |
| US6077075A (en) * | 1999-01-09 | 2000-06-20 | Bedard; John Arthur | Dental appliance and process |
| US6799969B2 (en) * | 1999-11-10 | 2004-10-05 | Dentsply Research & Development Corp. | Wax-like polymerizable dental material, method and shaped product |
| JP2001137263A (en) * | 1999-11-10 | 2001-05-22 | Gc Corp | Method for fabrication of dental prosthesis |
-
2001
- 2001-03-22 DE DE10114243A patent/DE10114243B4/en not_active Expired - Fee Related
-
2002
- 2002-03-08 EP EP02005200A patent/EP1243230A3/en not_active Withdrawn
- 2002-03-19 JP JP2002076877A patent/JP2002315760A/en active Pending
- 2002-03-21 US US10/103,205 patent/US6881360B2/en not_active Expired - Fee Related
- 2002-03-22 CA CA002378419A patent/CA2378419A1/en not_active Abandoned
-
2005
- 2005-01-31 US US11/046,933 patent/US7361697B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20030003172A1 (en) | 2003-01-02 |
| US20050131098A1 (en) | 2005-06-16 |
| DE10114243A1 (en) | 2002-10-02 |
| US6881360B2 (en) | 2005-04-19 |
| EP1243230A3 (en) | 2003-04-16 |
| JP2002315760A (en) | 2002-10-29 |
| DE10114243B4 (en) | 2004-07-29 |
| US7361697B2 (en) | 2008-04-22 |
| EP1243230A2 (en) | 2002-09-25 |
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