Guest guest Posted July 20, 2012 Report Share Posted July 20, 2012 Could someone pls check pink book p 242 all ceramic crown and clarify why in principles said chamfer prep lab,ling and in prep under lingual written continue shoulder???in Churchill 257 says prep is same as PJC QUITE CONFUSED HOW SHOULD PREP OF PORC BE SHOULDN'T IT BE LESS THAN PJC ?????? What is advantage of porcelain prep over PJC Quote Link to comment Share on other sites More sharing options...
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