Human Resource Management - Its Impact on ... - Dental Asia

USERREPORTby Rob LynockThe PerfectAesthetics′ FirstChoiceWhen faced with any aesthetically challengingsituation one of the first considerations is whichrestorative material to employ.In the past, all ceramic restorations haveoften been dismissed due to their lack ofstrength or maybe their disability tomask dark underlying colours. With thearrival of IPS e.max, all ceramicrestorations using this system can nowbecome our first consideration. It onlyremains for us to choose which of the fiveindividual components of the IPS e.maxsystem to use.Figure 1 Pre-operative viewIt is clear that our international marketrequires much more from restorativematerials than the promise of beautifulaesthetics. IPS e.max is one system tosatisfy all our requirements.With the case being presented it was arelatively straightforward selection to useIPS e.max press. The only possiblecomplication may have been an existingmetal post and core. Should this not havebeen able to be replaced with Cosmo postthen the IPS e.max Press HO (high opacity)ingot would have been selected. It isadvisable to select the HO ingot for bothcentral crowns as it is far easier to buildcolour equally from a uniform backgroundrather than attempting to match colour fromdifferent ingot bases.The shade of the prepared toothcorresponds to the shade ND 2 (Natural DieMaterial No. 2). With the desired shade ofthe final restorations being A2 theFigure 2 Shade determination of theprepared tooth with the natural diematerial shade guideFigure 3 Waxing around zirconia post,importantly the pressing is extended intothe coronal area44 Dental Asia • March / April 2008