CEREC Selective BioCopy - Celtra Anterior
Here is a case where the patient fractured a large existing composite restoration. The tooth had some interesting characteristics remaining that were worth duplicating in the final crown, so the design mode BioCopy was used. This mode also ensures a very accurate occlusion with rarely an adjustment needed post cementation. The case was scanned preoperativley in the BioCopy folder. The contents are copied into the prep folder and the fractured tooth is then cut out of the pre-op image. Once the tooth was prepared a second scan is taken of the prep only. This ensures a perfect stitch every time. The BioCopy line was positioned to include all of the data that we wanted to reporoduce in the final crown, namely that cool little incisal wear facet. The final proposal was barely altered and the crown was milled out of Celtra Duo LT A3.5. Celtra stains and glaze were used to add a little character. The crown was cemented with Variolink Esthetic neutral.
Bob, Looks Good. Is that cervical staining, or is the natural tooth color enhancing the natural esthetics of the crown? I know the Celtra LT is more translucent than EMax LT. I just have been reluctant to play with it, because I have almost figured out Emax shades! Do I really want to start over With Celtra shades? Are you finding the shades to be true?
On 6/23/2015 at 6:11 pm, Paul Goodman said...Bob, Looks Good. Is that cervical staining, or is the natural tooth color enhancing the natural esthetics of the crown? I know the Celtra LT is more translucent than EMax LT. I just have been reluctant to play with it, because I have almost figured out Emax shades! Do I really want to start over With Celtra shades? Are you finding the shades to be true?
Nassim. Most simple Biocopy cases do not require an opposing or buccal bite. You just have to use some self-control when you are designing and not alter the proposal very much.
Paul. You are dead on with your reluctance to "start over" with a new material. You are a long time advanced user and you know that the tried and true produces excellent results for sure. The shades with Celtra are pretty much true to the Vita basic shades. The translucency of the Celtra LT block is similar to most LT blocks. Not much influence from the stump shade or the cement tints. I added cervical staining extrinsically to that case. Should anyone jump ship? Heck no. I'm just playing with the material in a lot of different applications and so far so good.
