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Lab talk, the good, the bad, and the ugly
Equipment
Slow cooker for a Hydrocolloid melting machine
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<blockquote data-quote="kcdt" data-source="post: 20264" data-attributes="member: 349"><p>I've used a microwave before. it works well, but i don't remember times/settings as this was a long time ago. I think if you research a little, some mfrs will recommend how to do it.</p><p>try this on for a start:</p><p></p><p></p><p></p><p>A comparison of three methods for preparing reversible hydrocolloid duplicating material</p><p>Purchase the full-text article</p><p></p><p></p><p></p><p>References and further reading may be available for this article. To view references and further reading you must purchase this article.</p><p></p><p>Mark W. Wilhelm DDS, MSDa, Carl J. Andres DDS, MSDb, Associate Professor and Director of Graduate Prosthodontics, David T. Brown DDS, MSb, Associate Professor and Carlos A. Munoz DDS, MSDc, Corresponding Author Contact Information, Professor</p><p></p><p>aPrivate Practice, St. Paul, Minnesota, USA</p><p></p><p>bDepartment of Prosthodontics, School of Dentistry, Indiana University, Indianapolis, Ind. USA</p><p></p><p>cDepartment of Restorative Dentistry, School of Dentistry, Loma Linda University, Loma Linda, Calif. USA</p><p></p><p>Available online 4 March 2006.</p><p></p><p>This study compared the effects of repeated microwave oven and double-boiler liquefactions and prolonged autoduplicator storage on four physical properties of one reversible hydrocolloid duplicating material. No significant differences were observed between the linear dimensional change and detail reproduction of the three liquefaction techniques. Tear strength differences most clearly distinguished the techniques and effects of aging. Fifteen double-boiler remeltings produced tear strength values lower than those recorded for material stored in an autoduplicator for 2 weeks. Thirty microwave melting cycles still produced tear strength values equivalent to that of the autoduplicator material. After 30 melting cycles the compressive strengths of the microwave and double-boiler materials were inferior to that of the stored autoduplicator material.</p><p></p><p>Reprint requests to: Dr. Carlos A. Munoz Department of Restorative Dentistry School of Dentistry Loma Linda University Loma Linda, CA 92350</p><p>The Journal of Prosthetic Dentistry</p><p>Volume 74, Issue 6, December 1995, Pages 557-562</p><p></p><p>P.S. I just downloaded the article and will send it to you via e-mail if you wish. it has time and wattage guidelines. Contact me at <a href="mailto:kenneth@cdldl.com">kenneth@cdldl.com</a></p></blockquote><p></p>
[QUOTE="kcdt, post: 20264, member: 349"] I've used a microwave before. it works well, but i don't remember times/settings as this was a long time ago. I think if you research a little, some mfrs will recommend how to do it. try this on for a start: A comparison of three methods for preparing reversible hydrocolloid duplicating material Purchase the full-text article References and further reading may be available for this article. To view references and further reading you must purchase this article. Mark W. Wilhelm DDS, MSDa, Carl J. Andres DDS, MSDb, Associate Professor and Director of Graduate Prosthodontics, David T. Brown DDS, MSb, Associate Professor and Carlos A. Munoz DDS, MSDc, Corresponding Author Contact Information, Professor aPrivate Practice, St. Paul, Minnesota, USA bDepartment of Prosthodontics, School of Dentistry, Indiana University, Indianapolis, Ind. USA cDepartment of Restorative Dentistry, School of Dentistry, Loma Linda University, Loma Linda, Calif. USA Available online 4 March 2006. This study compared the effects of repeated microwave oven and double-boiler liquefactions and prolonged autoduplicator storage on four physical properties of one reversible hydrocolloid duplicating material. No significant differences were observed between the linear dimensional change and detail reproduction of the three liquefaction techniques. Tear strength differences most clearly distinguished the techniques and effects of aging. Fifteen double-boiler remeltings produced tear strength values lower than those recorded for material stored in an autoduplicator for 2 weeks. Thirty microwave melting cycles still produced tear strength values equivalent to that of the autoduplicator material. After 30 melting cycles the compressive strengths of the microwave and double-boiler materials were inferior to that of the stored autoduplicator material. Reprint requests to: Dr. Carlos A. Munoz Department of Restorative Dentistry School of Dentistry Loma Linda University Loma Linda, CA 92350 The Journal of Prosthetic Dentistry Volume 74, Issue 6, December 1995, Pages 557-562 P.S. I just downloaded the article and will send it to you via e-mail if you wish. it has time and wattage guidelines. Contact me at [email]kenneth@cdldl.com[/email] [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Equipment
Slow cooker for a Hydrocolloid melting machine
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