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<blockquote data-quote="2thm8kr" data-source="post: 114568" data-attributes="member: 1367"><p>I'm with you John. I used to do a lot of AGC coping,s the finished crowns look beautiful. Then had several failures from</p><p>lack of support for the porcelain. That machine is now collecting dust.</p><p>I think it could be fine for some situations, but I'll stick to the tried and true physics of bonding porcelain to metal.</p><p></p><p>Recently did a 3 unit bridge that another lab had done. #29-X-31 beautiful porcelain work, cement failed and abutment</p><p>rotten out from underneath. Doc gave me section of the bridge to match shade. Looking at a cross section of the pontic</p><p>it was just 6ga wax rope absolutely no support at all. I asked the patient during the seating how long he had had that bridge.</p><p>He told me 15 years. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused :confused:" loading="lazy" data-shortname=":confused:" /> IF the case is not in parafunction and the clinician knows his sh1t about occlusion and function</p><p>and the patient has a "normal" occlusal scheme and proprioception it will probably fly.</p></blockquote><p></p>
[QUOTE="2thm8kr, post: 114568, member: 1367"] I'm with you John. I used to do a lot of AGC coping,s the finished crowns look beautiful. Then had several failures from lack of support for the porcelain. That machine is now collecting dust. I think it could be fine for some situations, but I'll stick to the tried and true physics of bonding porcelain to metal. Recently did a 3 unit bridge that another lab had done. #29-X-31 beautiful porcelain work, cement failed and abutment rotten out from underneath. Doc gave me section of the bridge to match shade. Looking at a cross section of the pontic it was just 6ga wax rope absolutely no support at all. I asked the patient during the seating how long he had had that bridge. He told me 15 years. :confused: IF the case is not in parafunction and the clinician knows his sh1t about occlusion and function and the patient has a "normal" occlusal scheme and proprioception it will probably fly. [/QUOTE]
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