Sometimes it is a problem for dentists to make a large cosmetic filling. Very often a cusp has to be built up and composite materials normally used for fillings are not suitable. In this case a crown should be made. The problem with crowns is that much of the healthy tooth structure has to be removed. To avoid ithis, an inlay or onlay can be made. This is a transition between a simple filling and a crown.
During this procedure the dentist removes dental decay, weakened tooth structures and old filling material and then takes an impession. The dental techincian creates a metal-free, tooth-coloured restoration which teh dentist then installs. With this method an inlay or onlay bridge can be made wihout preparing a toot for a crown.