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Thermoplastic Acrylics
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<blockquote data-quote="drm313mac" data-source="post: 90990" data-attributes="member: 5830"><p>Andrew,</p><p>As always your advice is excellent, and I thank you.</p><p></p><p>I am not using the Ivoclar injection and processing system. I decided against it, as it is a thermal system, not thermoplastic. What I went with is the automated tcs system, which heats the cylinders to the proper temperature I set for that specific acrylic, then injects at the push of a button. I then take the flask to the processor, in this case the Mestra M9, which is also sold as the Astron Lab Pro as well as the Nevin 4900 (different facials, same guts). Therefore, I must use the tcs cylinders.</p><p></p><p>Regarding Diamond-D:</p><p>1. After mixing, can I heat to >60 Celsius to drive off the unreacted monomer, prior to loading the cylinder?</p><p>OR 2. WITHOUT mixing, can I simply load the acrylic into the cylinder, heat to the melting point of the acrylic (most acrylics are about 160 Celsius),and injest? This then is a physical change, as compared to a chemical reaction.</p><p></p><p>I am looking into tcs' new full denture acrylic, a hard nylon.</p><p></p><p>Are there other full denture acrylics I can use as thermoplastic? Besides the known ones such as Flexite MP? Yes, I am looking into the Astron 1180, and ordering some samples we might experiment with.</p><p></p><p>We will offer 4 denture lines, each marketed to different populations. With ALL 4 I refuse to compromise the fit of the denture, or the acrylic quality. The teeth will range from 2- to 4-layer, the acrylic esthetics will vary as well from say one-shade-fits-all all the way to full characterizations and tinting, from monoplane to multi-degree cusps, etc. From experience I know that what matters most are the fit, the safety, the basic quality, and I refuse to compromise these points.</p></blockquote><p></p>
[QUOTE="drm313mac, post: 90990, member: 5830"] Andrew, As always your advice is excellent, and I thank you. I am not using the Ivoclar injection and processing system. I decided against it, as it is a thermal system, not thermoplastic. What I went with is the automated tcs system, which heats the cylinders to the proper temperature I set for that specific acrylic, then injects at the push of a button. I then take the flask to the processor, in this case the Mestra M9, which is also sold as the Astron Lab Pro as well as the Nevin 4900 (different facials, same guts). Therefore, I must use the tcs cylinders. Regarding Diamond-D: 1. After mixing, can I heat to >60 Celsius to drive off the unreacted monomer, prior to loading the cylinder? OR 2. WITHOUT mixing, can I simply load the acrylic into the cylinder, heat to the melting point of the acrylic (most acrylics are about 160 Celsius),and injest? This then is a physical change, as compared to a chemical reaction. I am looking into tcs' new full denture acrylic, a hard nylon. Are there other full denture acrylics I can use as thermoplastic? Besides the known ones such as Flexite MP? Yes, I am looking into the Astron 1180, and ordering some samples we might experiment with. We will offer 4 denture lines, each marketed to different populations. With ALL 4 I refuse to compromise the fit of the denture, or the acrylic quality. The teeth will range from 2- to 4-layer, the acrylic esthetics will vary as well from say one-shade-fits-all all the way to full characterizations and tinting, from monoplane to multi-degree cusps, etc. From experience I know that what matters most are the fit, the safety, the basic quality, and I refuse to compromise these points. [/QUOTE]
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