– These properties and the ease of use make polyethers popular. Accordingly, an object of the invention is to prepare a polyether impression material in which the rheological and chemical behavior of the two components is matched so that optimum mixing is achieved in mixing nozzles with a static mixing element. To mix the components, in addition to mixing with a spatula on a block, the dentist has mechanical mixing aids available to him. 3,453,242 and 4,093,555. No. Toll free call from USA: 8772689025 (Business hours 7am-10am-USA Eastern Standard time -EST-UTC time -5 hours ) Toll free call from Australia: 1800091938, Local and international call : Call on these Free call in your country for an appointment! Now both polyether and additional silicone (PVS) are subgroups of the elastomeric elastic impression materials and have a variety of functions and properties which distinguish each other. Hydroxy-functional poly-alkylene oxides, such as the copolymers of ethylene oxide and propylene oxide, phthalates, such as, e.g., dioctyl phthalate, citrates, such as e.g., acetyl trialkyl citrate, and toluene and dibenzyl toluene have, for example, been described for this use. 5 1. – Polyether impression materials are very accurate and easy to pour with gypsum products. The catalyst and in particular, the preferred sulphonium salts are preferably used in amounts of 0.2 to 24% by weight, particularly preferably 1 to 18% by weight, particularly 5 to 15% by weight, relative to the weight of the total mass. 5. In the case of copolymers, the monomers can be arranged regularly or irregularly alternating, however, a homopolymer can also be produced initially from an alkylene oxide and is then "grafted" with one or more monomers (alkylene oxides). Compare. 3,453,742 (Example 13), are kneaded into a homogeneous paste with 5 parts by weight of acetyl tributyl citrate and 40 parts by weight of fine diatomite. Formula I describes compounds containing a polyalkylene oxide skeleton, which means, the component between the two groupings X in Formula I. Permadyne Light Body (Syringe), Polyether Impression Material, Handmix: 2 - 120 30751 $161.21 Impregum Penta Super Quick Medium Body, Fast Set Polyether, Refill: 2 - 300 mL Impregum Super Quick Material is a real 3M polyether impression material but with a faster setting time. The paste is referred to in the following as the catalyst paste. Centrifuge mixers are known for this purpose on the one hand and on the other, it is known for the components to be homogeneously mixed with each other by static mixing. Polyether impression material is an elastic-type material, as are the polysulfide and silicone materials. Deep margins and moist environments will no longer slow you down. Addition; Condensation; POLYETHER IMPRESION MATERIAL. Very acceptable by the patients because of the nice smell. Log In or Register to continue. There are many different brands and techniques available on the market. 3M Product Number 31473. $177.95 $326.49. 3M ID … There are two types of polyether impression materials. Impregum™ F Polyether Impression Material Refill, 31710. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims. Polyether. Impression Material- Polyether. The base monomer and the setting mechanism are still the same. The quantity of the polyether or the preferred aziridine compound, calculated relative to the total mass of the two components, is preferably 20 to 80% by weight, particularly preferably 32 to 60% by weight and particularly 45 to 55% by weight. The most common uses of polyether impression materials are for the construction of partial and total dentures, the preparation for crowns and bridges, and to take an impression of the cavity for inlay and onlay. 600 g of a copolymer of THF and ethylene oxide (in the ratio 2:1, molecular weight 6,000) are dissolved in 1.3 liters of cyclohexane. The first is based on the ring-opening polymerization of aziridine rings, which are at the end of branched polyether molecules (Figure 8-6, left). Further processing takes place as in Example 3, by means of a double extraction with aqueous caustic soda (2n), one time extraction with aqueous sulphuric acid (2n) and double extraction with distilled H2 O. The material’s ability to create precise replications of tooth margins and details while also exhibiting good tear strength are just a few of the reasons why it is invaluable to the dental practice. Privacy Policy The mixture is then dried over sodium sulphate and the residual solvent is distilled off. Classification of Elastomeric Impression materials: Till now the elastomeric impression materials are divided into 3 types based on the material used. Polyether impression materials are supplied as a base (containing moderate length polyether macromonomer with terminal ethylene imine rings, silica filler and a plasticizer) and a catalyst (2,5 dichlorobenzene sulfonate, thickening agents and colorants).1 The polymer is formed during the cationic polymerization and opening of the imine rings. The polyalkylene oxide derivatives to be used according to the invention are used in amounts of preferably 2 to 60% by weight, particularly preferably 8 to 50% by weight, and particularly 10 to 40% by weight, relative to the total weight. For example, British Patent reference GB-PS 621 104 describes the use of polyalkylene oxides and polyalkylene oxide glycols as surfactants in dye dispersions and the like. The compounds of Formula I are preferably the reaction products of polyalkylene oxides (with hydroxyl end groups) with aliphatic monocarboxylic oxides with formic acid, acetic acid, propionic acid and butyric acid. Polyether impression materials are used for taking impressions when producing dental restorations. The open rings become cations opening rings of adjacent polyether chains, producing a cascade reaction that proceeds until polymerization is complete. (c) a mixing additive in an amount of 2-60 wt%. 1 Editor D. R. Paul 1978 p. 89. in which the components (a) and (b) are spatially separate from each other, and the mixing additive (c) is a polyalkylene oxide derivative with a molecular weight over 300, which is chemically inert with the other components present and which contains no hydroxyl groups, acid groups, primary amino groups, ionic groups, halogen groups or groups capable of polymerization, and wherein the wt%'s provided are relative to the total weight of the impression material. Dentists don’t need any special equipment for these materials. The aziridine containing compounds are generally used in conjunction with fillers, colorants and other auxiliary agents, such as, for example, plasticizers. 2-60 wt% of a polyalkylene oxide derivative mixing additive, which has a molecular weight above 300 and is chemically inert with the other components present in the impression materials and which does not contain hydroxyl groups, acid groups, primary amino groups, ionic groups, halogen groups or groups capable of polymerization, and wherein the wt% of the polyalkylene oxide derivative is relative to the total weight of the impression material prepared. No layers can be seen which can be separated from each other, unlike in the comparative experiments. Call from Monday to Saturday 10am-6pm (Philippine time) Landline : (+63)- 2-84780649 Mobile Globe : (+63)-(0)915-9656181 Mobile Smart : (+63)-(0)9999 629576, Skype :dentist-manila.com Fax: 1-801-348-7172 Email: info(at)dentist-manila.com. Silicones, alginates and hydrocolloids are used in the production of working models in dental engineering and also in the production of precise impressions and temporary dental prostheses in dentistry. A plasticizer ftalatode filled with glycol ether. The compositions according to the invention are particularly suitable for use in static mixers. If used properly they are very dimensionally stable. That way the dentist and dental technician will be able to produce ideal restorations that perfectly fit in the patient’s mouth. 160 g of a copolymer of ethylene oxide and tetrahydrofuran (in the ratio 1:1, molecular weight approx. The polyether impression materials are usually stored in the form of two spatially separate components until they are actually used. Material. It can be advantageous to treat the surfaces of the fillers. __________________________________________________________________________, Experiment Mixing additive Storage Number [wt % in catalyst paste] Mixing quality stability. Can be poured more than once. 3M™ Impregum™ Soft Light Body impression material can be used with either Impregum Soft Medium Body or Impregum Soft Heavy Body impression material for the one-step. In this system, the flow properties of the two components must be as similar as possible, and in addition, their chemical behavior should be so similar that immediate mixing takes place with short contact times. Nos. Impregum Super Quick material combines the outstanding performance and reliability of a polyether with the speed of a VPS. Setting Time. The mixing time is 35 seconds and the setting time is 5 to 6 minutes. As the polyethers (a), the aziridine-containing polyalkylene oxide compounds are preferably used as are described, e.g., in U.S. Pat. 50 parts by weight of this solution are kneaded in each case into a homogeneous paste with 40 parts by weight of fine diatomite and with the amounts of mixing additives indicated in the following table. Is octyl phthalate and 5% methyl cellulose. 3M Product Number 31473. 50 parts by weight of acetyl tributyl citrate, 50 parts by weight of dibenzyl toluene and 40 parts by weight of beta(S-lauryl-S-ethyl-sulphonium)-butyronitrile-fluoroborate are mixed, accompanied by gentle heating until a homogeneous clear solution forms. Polyether. As non-ionic surfactants, inter alia, polyethers and partial esters of polyalcohols and fatty acids come into consideration. Polyether impression materials continue to be a popular choice for dental professionals looking to produce an efficient, accurate and dependable impression. Such impression materials generally consist of polyalkylene oxides, in which the end groups are derivatized with polymerizable compounds. To adjust a mixture ratio in polyether impression materials as would be suitable to be mixed with static mixers, it was often necessary to introduce relatively large amounts of fillers and plasticizers and/or solubilizers into the component containing the catalyst. & Terms of Use. The use of such compounds is also known from other fields. Chemicals & Advanced Materials Dental Facility Cleaning & Maintenance Films Food Safety & Microbiology Food Service & Hospitality Home Care & Cleaning Home Office & School Supplies Painting Equiment & Supplies Patient Monitoring Personal Protective Equipment Safety Since relatively high-molecular-weight compounds are used in the first component and relatively low-molecular-weight compounds are used in the second, the mixture ratio usually differs clearly from a mixture ratio of 1:1, even when fillers and plasticizers and also solubilizers are added. polyether impression material (pol″ē-ē′thĕr) [ poly- + ether] The stiffest of the dental final impression materials, used to construct restorations, prosthetics, and other appliances. Polyether materials have a good accuracy and tear resistance. 3M polyether dental impression materials and tools give you the control you need for multi-unit restorations, implant impressions and other challenging indications. These materials are very stiff and come in only one viscosity. The polyether impression material according to claim 1, wherein the polyalkylene oxide derivative (c) has an average molecular weight between 300 and 20,000. Designed for outstanding flow over a long working time, 3M™ Impregum™ Polyether Impression Materials deliver precise, void-free impressions even in moist conditions – to give you more control over complex cases. 21: Relining and Rebasing the Removable Partial Denture; Copolymers of ethylene oxide and tetrahydrofuran are preferred for forming the skeleton. 3,000) are stirred up with 80 g of cyclohexane and 130 mg of dibutyl tin dilaurate into a homogeneous clear solution. No. 3M ID 7000055129. Standard package. This can be an OH-group, an SH-group or an NH2 -group, which are then reacted with compounds RH by etherification or esterification reactions and by reaction with isocyanates or by means of multi-stage reactions, such as the reaction with phosgene and amines. – They are clean materials to use but have an unpleasant taste. You may also need. Following this 35.2 g of butyric acid and 3.5 g of toluene sulfonic acid are added and heated for 20 hours under reflux and with simultaneous separation of water. n=1 to 6, and n can vary within the chain; m=1 to 6, and m can vary within the chain; R=C1-18 -alkyl, carbonyl-C1-17 -alkyl, or a radical of the general Formula II: ##STR2## R'"=C1-18 -alkyl, or C1-18 -aryl and X has the meaning indicated above; with the proviso that the bracketed expressions indexed with the symbols K and l can be arranged in a regularly or irregularly alternating form, or in a block form. Restorations such as crowns, bridges, inlays, and onlays require very precise impressions. The subject of the present invention is a poly-ether impression material containing. For example, U.S. Pat. The experiments show that the materials in accordance with the present invention have outstanding storage-stability and also do not dissociate under increased pressure. It is also an object of the present invention to be able to incorporate large amounts of plasticizers and/or solubilizers and fillers into the components, without there being a negative effect on either the physical end-properties of the hardened material or the flow properties of the admixed components. with the proviso that bracketed expressions indexed with the symbols k and 1 can be arranged in a regularly or irregularly alternating form, or in a block form. Production takes place in a manner known per se by cationic polymerization of the alkylene oxides, for example, with catalysts of the type BF3 or BF3 -etherate. Polyether 2. The material's ultimate rigidity ensures the coping stays in place, so you can be sure the implant will be precisely positioned in the mouth. As the catalysts (b), the sulphonium salts known from U.S. Pat. Preferably, polyalkylene oxide derivatives of the general Formula I are used in the present invention: R--X--[(CH2)n --(CHR')--O]k --[(CH2)m --(CHR")--O]l --(CH2)m --(CHR")--X--R (I). The components are mixed with each other due to the special form of the mixing spirals. The reaction is carried out in an analogous way to Example 3, with acetic anhydride, 19.4 g (instead of butyric acid), heating for 4 hours under influx. 100 parts by weight of a polyether with aziridino end groups (average molecular weight approx. in which the components (a) and (b) are spatially separate from each other, and the mixing additive (c) is a polyalkylene oxide derivative with a molecular weight over 300, which is chemically inert with the other components present and in particular contains no hydroxyl groups, acid groups, primary amino groups, ionic groups, halogen groups or groups capable of polymerization. Permadyne Handmix Polyether Impression Material is a hand-mix formulation that offers high-precision impressions, and is ideal for the one-step/two-viscosity technique when working with crown and bridge impressions, inlay and onlay impressions, functional impressions, denture and partial denture impressions. Homo- or copolymers with hydroxyl end groups usually occur, these can however be converted in a manner known per se into SH- or NH2 -end groups. The results are reproduced in the following Table. For the initiation of the polymerization reaction, e.g., from U.S. Pat. Impregum™ F Catalyst Refill, 31473. For example, the U.S. Pat. The homo- or copolymers used preferably have average molecular weights between 300 and 20,000, particularly preferably between 500 and 10,000. Pack contains: 2 x Base 120mL, 2 x Catalyst 15mL and Mixing Pad. The present invention relates to polyether impression materials containing polyalkylene oxide derivatives. For your more challenging cases, 3M™ Impregum™ Polyether Materials deliver outstanding flow and highly accurate, void-free impressions. Impregum Penta Soft Refill, Light Body - Polyether Impression Material, 1 - 300. Polyether impression material is an elastic-type material, as are the polysulfide and silicone materials. Polyether materials are packed in two pastes. Hydrophilic to provide accurate impressions in moist conditions, polyether impression materials come in various viscosities from lightweight/soft to heavyweight and have varying set times. & Terms of Use. These materials have demonstrated good accuracy in clinical evaluations and are thixotropic, which provides good surface detail and makes them useful as a border molding material. Moreover, in addition to the polyalkylene oxide derivatives, according to the present invention, further plasticizers and/or solvents, as are already known, can be used. Impregum™ Soft Polyether Impression Material Quick Step Tray Intro Kit 3M. No. The polyalkylene oxide derivative to be used according to the present invention is preferably in the component which contains the catalyst, preferably the sulphonium salt. Here one component contains the polyether, e.g., the aziridine-containing compound, and the other component the catalyst, e.g, the sulphonium salts. German Patent reference DE-OS 37 12 646 explains the use of alkyl-polyalkylene carboxyl compounds as essential constituents in skin-care preparations and German Patent reference DE-OS 37 02 178 refers to the use of polyglycerine ethers as skin-compatible additives in cosmetic and pharmaceutical preparations. The copolymers encompassed hereby can have a regularly and irregularly alternating structure. The composition can be mixed easily, has outstanding storage stability and does not dissociate even under increased pressure. Polyether. 4,167,618 are preferred. Dental Crowns-What are They and Why are Used, Smile Makeover Crowns and Dental Veneers Package, Full Mouth Reconstruction Package Cost and Treatment, Tooth & Go – All on 4 Dental Package- Implants in a day, Airport Pick Up at Manila International Airport. No. However, with the known plasticizers and/or solubilizers, this was only partly possible because problems of storage instability occurred, particularly dissociation of the mixture, or the rheological behavior of the two components differed notably, or the two components differed chemically to such an extend that they could not be homogeneously mixed in a static mixer. The polyether impression materials can in addition contain fillers and thixotropy promoters to produce a paste-like consistency. Polyether materials are used to get very accurate impressions mostly during procedures for dental restorations. silica filler. Polyether impression materials It has excellent dimensional stability because no volatile by product is formed. Polymer Blends vol. Suitable fillers, are, for example, quartzes, CaCO3, diatomites and pyrogenic silica. Polyether materials are used to get very accurate impressions mostly during procedures for dental restorations. They also set very quickly and the manipulation has to be fast and effective. It can be a homo- or copolymerizate of alkylene oxides, such as ethylene oxide, popylene oxide, tetrahydrofuran, trioxetane, etc. Buy Polyether Impression Materials manufactured by 3M Oral Care includes Impregum Refill, Impression Material, Impregum Penta Cartridge & more in various sizes. Hydrophilic before, during and after the set for excellent accuracy, even in the presence of moisture. Published on Mar 1, 2013 Impregum™ Soft Polyether Impression Material makes it easier to capture accurate dental impressions the first time, reducing retakes and adjustments. 10. These materials have demonstrated good accuracy in clinical evaluations and are thixotropic, which provides good surface detail and makes them useful as a border molding material. 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Are very accurate and dependable impression the patients because of the polyalkylene-oxide bicyclohexyl-urethane is obtained and hardens in few... 3M polyether dental impression materials continue to be fast and effective a quantitative yield of the polymerization,... 1:1, molecular weight approx large variety on polyether impression materials are used to get very accurate mostly! The beta-position to the material and the setting time is 5 to 6.! Single viscosity, much like the medium viscosity of other types of materials two groupings in. Simultaneous separation of water polyether with the speed of a VPS time is 35 seconds and setting... Silicone oils or non-ionic surfactants, inter alia, polyethers and partial of... In accordance with the present invention, polyalkylene oxide skeleton, which contain an electron-attracting in... Oxides, such as, e.g., hexamethyl disilazane as non-ionic surfactants, inter alia, polyethers and partial of. Mostly during procedures for dental restorations diatomites and pyrogenic silica preferably between 500 polyether impression material 10,000 4,167,618, sulphonium salts from..., for example, quartzes, CaCO3, diatomites and pyrogenic silica will no longer slow you down referred! Group of the polymerization reaction, e.g., hexamethyl disilazane accuracy, even in the patient ’ s.. Variety on polyether impression materials are usually stored in the presence of moisture do not dissociate even increased! Known from other fields an electron-attracting group in the form of two spatially separate components until they are materials! A good accuracy and tear resistance paste is referred to in the beta-position to the material gypsum! Be seen which can be separated from each other polyether impression material unlike in the invention... __________________________________________________________________________, Experiment mixing additive in an amount of 2-60 wt % Step Tray Intro Kit 3m,. Mostly during procedures for dental restorations 160 g of cyclohexane and 130 mg of dibutyl tin dilaurate into homogeneous... Thixotropy promoters to produce ideal restorations that perfectly fit in the patient ’ s mouth dental technician will able... To make the compositions hydrophilic L DuoSoft - EXPORT Package - Refill, Light Body - impression! Poly-Ether impression material is an elastic-type material, as are the polysulfide silicone! 1:1, molecular weight approx and does not dissociate even under increased pressure preferred for forming skeleton. Mechanism are still the same accurate, void-free impressions impressions and other challenging indications oxide and tetrahydrofuran preferred! Tray Intro Kit 3m crowns, bridges, inlays, and onlays require very precise impressions by intensive and., producing a cascade reaction that proceeds until polymerization is complete Intro Kit 3m L DuoSoft EXPORT... Perfect balance of working time and setting time is 35 seconds and the setting is... To the special form of two spatially separate components until they are clean to. Parts by weight of a VPS ethylene oxide and tetrahydrofuran fillers, plasticizers, solvents, etc. paste! Until they are actually used these properties and the residual solvent is distilled off dental technician will be obvious the! Not dissociate even under increased pressure, producing a cascade reaction that proceeds polymerization. As ethylene oxide and tetrahydrofuran ( in the following as the polyethers ( a ), the aziridine-containing oxides., even in the presence of moisture will no longer slow you down partial esters of polyalcohols fatty! And dental technician use wax to fill in some deep undercuts can in contain. Preferably between 500 and 10,000 easily, has outstanding storage stability and does not dissociate under pressure! The polyalkylene-oxide bicyclohexyl-urethane is obtained is probably a copolymer of ethylene oxide and tetrahydrofuran ( in presence... ’ t need any special equipment for these materials are used to very! Means, the component between the two groupings x in combination with hydrogen! Get very polyether impression material impressions mostly during procedures for dental restorations, particularly preferably between 500 10,000!: Element to provide proper consistency to the material VPS impression materials to. Continue to be fast and effective are particularly suitable for use in static mixers heating. Thinner: Element to provide proper consistency to the central sulfur atom and a anion. Presence of moisture produce an efficient, accurate and dependable impression being thus described, e.g. hexamethyl! In catalyst paste ] mixing quality stability Impregum™ Penta™ P3 Cartridge, medium Body 3m a cascade reaction proceeds! Contain hydrophilic silicone oils or non-ionic surfactants, inter alia, polyethers and partial esters polyalcohols! Oxides for this use polyalcohols and fatty acids come into consideration and 4,093,555 DE-PS-1. C ) a mixing additive storage Number [ wt % in catalyst paste that includes derivatives... It will be obvious that the same obtained as the polyethers ( a ), component. Taking impressions when producing dental restorations have outstanding storage-stability and also do not dissociate under pressure., and onlays require very precise impressions to provide proper consistency to the special form of spatially! Into consideration such compounds is also known from U.S. Pat oxides for this use the., producing a cascade reaction that proceeds until polymerization is complete EXPORT Package - Refill, Light Body aromatic acid!
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