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Lab talk, the good, the bad, and the ugly
Metal
Screw retained pfm
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<blockquote data-quote="TheLabGuy" data-source="post: 162399" data-attributes="member: 126"><p>Yep ours too...and to answer PJD's question, we do them like rkm, but have the doctor cement it to the abutment in office. As for excess cement, its one of the biggest causes for implant failures. We have a technique (and I will take pics and provide soon) that has dramatically helped in this. I know this will be hard to follow without pics, but I will try to explain. What we do is take a duplication of the custom abutment with analog/replica. We make an epoxy die of the custom abutment. It's a single expoxy die of the custom abutment. We send that out with the final restoration to the doctor with the custom abutment and virgin torque screw. Why you ask?...because here's the technique, the Doctor tries the abutment and crown in, if everything is a fit, then he will clean the crown and abutment, take the epoxy die and cement the crown onto the epoxy die. Once that cement is hardened, he'll take the crown off the epoxy die (this is why you have used epoxy, the cement won't stick to it, only the crown). Now the Doc torques in the abutment into the patient mouth, and then he very lightly micro brushes just a little bit of cement on the intaglio surface of the already previously cemented crown. This provides almost no to the utmost little tiny bit of excess cement. I'm currently writing a tech article on this with pics, but thought I would share this technique with all of you. It's slick and quick, and works awesome!!!</p></blockquote><p></p>
[QUOTE="TheLabGuy, post: 162399, member: 126"] Yep ours too...and to answer PJD's question, we do them like rkm, but have the doctor cement it to the abutment in office. As for excess cement, its one of the biggest causes for implant failures. We have a technique (and I will take pics and provide soon) that has dramatically helped in this. I know this will be hard to follow without pics, but I will try to explain. What we do is take a duplication of the custom abutment with analog/replica. We make an epoxy die of the custom abutment. It's a single expoxy die of the custom abutment. We send that out with the final restoration to the doctor with the custom abutment and virgin torque screw. Why you ask?...because here's the technique, the Doctor tries the abutment and crown in, if everything is a fit, then he will clean the crown and abutment, take the epoxy die and cement the crown onto the epoxy die. Once that cement is hardened, he'll take the crown off the epoxy die (this is why you have used epoxy, the cement won't stick to it, only the crown). Now the Doc torques in the abutment into the patient mouth, and then he very lightly micro brushes just a little bit of cement on the intaglio surface of the already previously cemented crown. This provides almost no to the utmost little tiny bit of excess cement. I'm currently writing a tech article on this with pics, but thought I would share this technique with all of you. It's slick and quick, and works awesome!!! [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Metal
Screw retained pfm
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