CASE 7 - ONLAYS/OVERLAYS - A GREAT ALTERNATIVE TO CROWNS
Conventionally it is said that a tooth that has had root canal treatment needs a crown afterwards. Indeed the risk of fracture and of "lack of seal" that a normal filling in these circumstances represents does mean that the tooth needs to be restored with a stiffer restoration which covers all its cusps.
No need to destroy 80% of the tooth though! An overlay ensures longevity to the tooth, while bein a much less invasive technique, much more friendly for the gums and, in my opinion, much more nature-like.
The case below is of a root treated molar which had a defective filling. We cleaned it, rebuild it and bonded a composite overlay, with the precious help of magnification and the rubber dam.