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Lab talk, the good, the bad, and the ugly
Porcelain
Question from a wanna-be lab tech
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<blockquote data-quote="John in Canada" data-source="post: 315045" data-attributes="member: 18628"><p>Hi. You guys are missing the point here. Doc wants to do his own lab work. The same as if we do our own construction projects, renovations, car repairs, etc. Its because WE CAN, and its not about the money. It brings us enjoyment.</p><p></p><p>So to answer your question Doc, if you're trying to keep your costs low AND do the work, then you'll need a broken arm casting machine, a burnout oven, torch with gas and oxygen, a porcelain furnace, and a sand blaster. Likely, you have a vibrator to pour up impressions and a vacuum spatulator. Bench suction and appropriate burs to trim dies and a die saw. Die spacer, thin super glue, a RED pencil to mark margins. Wax, a wax pencil, or flame source to heat your waxing instruments. I assume you have articulators of some kind, the plastic disposable ones are great for most C&B work. Casting rings, and investment, and the special liquid that goes with the investment properly diluted. Debubblizer. Then you will need to decide what sort of alloy you want to use. Precious alloys are FREAKIN expensive right now. About $2,000 per ounce for some of the better alloys. But then theres non precious, carbumperum, lol than can be used. Not as forgiving to cast, Higher temperature required to cast, hard as nails to finish. So you better be a good waxer or you're going to spend hours grinding and polishing metal. Don't forget about the stones and e cutter type burs, diamonds for the porcelain, etc. Then you'll need a porcelain kit. You're in Canada as I am, and I have an extra full kit that works well if interested/necessary. Likely, I have forgotten something. </p><p>If you're in Manitoba, I can assist more one on one. I am not a dentist but I do run a full service lab, and I do all the work except as noted next. I do all necessary preliminary work. I wax my C&B work send it to a trust worthy lab for investing and casting, I finish the metal work, and apply the porcelain and finish. I send my RPD frames out to an appropriate lab, then I do my own set ups and processing/finishing.</p><p>Hope you find this helpful </p><p></p><p>Economically and as part of a sign of the times, CAD is likely the better way to go. The technology is not going away, and gets better every year. I think your better bet would be to pick up a used 3 Shape scanner. There was one on Kijiji from Toronto last week. You'll need to get the rights to operate it, but VERY likely you could purchase the hardware and software and be up and running for under 10K. Way cheaper than trying to do things as I outlined above, in my opinion. Then teach yourself how to do it virtually, send the files to Argen, and when it arrives at your clinic 3 days later, apply porcelain, or not depending on your design/preference, and glaze. You could even custom stain everything when the patient is in the chair. I don't have a scanner. So I do all the prep work, send it to a trusty lab, they design, send me the file to approve, mill and send back to me to finesse and glaze. Most of my zirconia work is anterior stuff.</p></blockquote><p></p>
[QUOTE="John in Canada, post: 315045, member: 18628"] Hi. You guys are missing the point here. Doc wants to do his own lab work. The same as if we do our own construction projects, renovations, car repairs, etc. Its because WE CAN, and its not about the money. It brings us enjoyment. So to answer your question Doc, if you're trying to keep your costs low AND do the work, then you'll need a broken arm casting machine, a burnout oven, torch with gas and oxygen, a porcelain furnace, and a sand blaster. Likely, you have a vibrator to pour up impressions and a vacuum spatulator. Bench suction and appropriate burs to trim dies and a die saw. Die spacer, thin super glue, a RED pencil to mark margins. Wax, a wax pencil, or flame source to heat your waxing instruments. I assume you have articulators of some kind, the plastic disposable ones are great for most C&B work. Casting rings, and investment, and the special liquid that goes with the investment properly diluted. Debubblizer. Then you will need to decide what sort of alloy you want to use. Precious alloys are FREAKIN expensive right now. About $2,000 per ounce for some of the better alloys. But then theres non precious, carbumperum, lol than can be used. Not as forgiving to cast, Higher temperature required to cast, hard as nails to finish. So you better be a good waxer or you're going to spend hours grinding and polishing metal. Don't forget about the stones and e cutter type burs, diamonds for the porcelain, etc. Then you'll need a porcelain kit. You're in Canada as I am, and I have an extra full kit that works well if interested/necessary. Likely, I have forgotten something. If you're in Manitoba, I can assist more one on one. I am not a dentist but I do run a full service lab, and I do all the work except as noted next. I do all necessary preliminary work. I wax my C&B work send it to a trust worthy lab for investing and casting, I finish the metal work, and apply the porcelain and finish. I send my RPD frames out to an appropriate lab, then I do my own set ups and processing/finishing. Hope you find this helpful Economically and as part of a sign of the times, CAD is likely the better way to go. The technology is not going away, and gets better every year. I think your better bet would be to pick up a used 3 Shape scanner. There was one on Kijiji from Toronto last week. You'll need to get the rights to operate it, but VERY likely you could purchase the hardware and software and be up and running for under 10K. Way cheaper than trying to do things as I outlined above, in my opinion. Then teach yourself how to do it virtually, send the files to Argen, and when it arrives at your clinic 3 days later, apply porcelain, or not depending on your design/preference, and glaze. You could even custom stain everything when the patient is in the chair. I don't have a scanner. So I do all the prep work, send it to a trusty lab, they design, send me the file to approve, mill and send back to me to finesse and glaze. Most of my zirconia work is anterior stuff. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
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Question from a wanna-be lab tech
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