Fixed Prosthodontics Preparation Techniques

One popular method of cosmetic dentistry beverly hills to restore teeth is fixed prosthodontics. Fixed prosthodontics uses fixed restorations (also referred to as indirect restorations), which include crowns, bridges, inlays, onlays, and veneers. In general, the main advantages of fixed prosthodontics when compared to direct restorations are the superior strength when used in large restorations, and the ability to create an aesthetically pleasing tooth.

As with any dental restoration, principles used to determine the appropriate restoration involve consideration of the materials to be used, extent of tooth destruction, orientation and location of tooth, and condition of neighboring teeth. Preparation for a fixed prosthodontics, especially with crowns, involves irreversible removal of a significant amount of tooth structure. This is the reason why dentists take more time on deciding whetherinclude:
a crown is needed to restore damage tooth or not. Preparation techniques used in this type of cosmetic dentistry beverly hills usually

The Dimensions of Preparation

If the tooth is to be restored with a full gold crown, the restoration only needs to be .5 mm in thickness (as gold is very strong), and therefore, a minimum of only .5 mm of space needs to be made for the crown to be placed. If porcelain is to be applied to the gold crown, an additional minimum of 1 mm of tooth structure needs to be removed to allow for a sufficient thickness of the porcelain to be applied, thus bringing the total tooth reduction to minimally 1.5 mm.

Taper

The prepared tooth also needs to possess a certain degree of taper to allow for the restoration to be properly placed on the tooth. Fundamentally, there can be no undercuts on the surface of the prepared tooth, as the restoration will not be able to be removed from the die, let alone fit on the tooth.

Margin

Naturally, the tooth-to-restoration margin is an unsightly thing to have exposed on the visible surface of a tooth when the tooth exists in the aesthetic zone of the smile. As part of cosmetic dentistry beverly hills techniques, the dentist would usually place the margin as far apical (towards the root tip of the tooth) as possible, even below the gum line.

Ferrul Effect

As with the bristles of a broom, which are grasped by a ferrule when attached to the broomstick, the crown should envelop a certain height of tooth structure to properly protect the tooth from fracture after being prepared for a crown. This has been established through multiple experiments as a mandatory continuous circumferential height of 2mm; any less provides for a significantly higher failure rate of endodontically-treated crown-restored teeth.