Sculpture/FibreKor is a great alternative for a laboratory fabricated composite type of restoration. It is both light and heat cured in the lab to provide very durable and esthetic results. It can be placed anywhere in the mouth as a single full coverage or as an inlay/onlay and may be bridged up to a 3 unit restoration by using inlay or full coverage abutments.
With the popularity of all ceramic restorations, there are still a couple of areas that we've found Scuplture/FibreKor to be specifically highly successful. This is as a post/core for an anterior all ceramic restorations and also for using as a lower anterior single Maryland bridge. Both of these result in great esthetics as there is no metal darkening to deal with.
When preparing a posterior inlay or onlay for a Sculpture restoration, the preps should look ideally like these:
For full coverage Sculpture restorations:
Box design for anterior or posterior bridges:
Here is an image of the FibreKor material before it's been cured.
Lab fabricated Sculpture Fibre/Kor post & core. This material is working out great for the construction of post and cores for anteriors prior to placement of a full coverage all ceramic. We've made a number of these with great success. The key is to prep the core to allow adequate room for construction as well as easy draw.
Lower anterior Maryland bridge
. Due to the minimal size of a typical lower incisor this restoration works great due to its strength and esthetics. The linguals need not be reduced much if at all. The concern is of course to allow an easy path of insertion for placement of the pontic and lingual wings. We've found using an ovate or bullet style at the gingival of the pontic will give the best results, so it may be necessary to create a sulcus in the tissue either at the time of seating or prior to impressing.Adjustment.
One of the nice side effects concerning the strength of the material is if occlusal adjustment is needed, it’s not necessary to adjust after the restoration has been bonded in place as is the case with all ceramic. This can be done out of the mouth, just as if you were working with a PFM. The key of course is care, but it’s very easy to adjust out of the mouth using either a diamond or carbide bur. Special attention needs to be taken in regards to thin marginal areas in not chipping them off. Other than that, you need not fear fracturing the restoration when grinding on it while holding it.Polishing.
If you adjust the restoration, you can achieve a high shine quickly by first smoothing the adjusted area with a white diamond wheel followed by using the green Chrometal polishing compound applied by a soft bristle brush for one or two seconds. You’ll find this gives a very high shine extremely fast. Any residue left from the compound can be cleaned off using a brush and alcohol.Seating.
Just follow your normal procedure using your favorite light curing bonding material. You will need to silinate the internal area of the restoration prior to bonding. A lot of people have asked about etching the interior of the restoration. Please note that this isn’t recommended as the material won't etch.