Particular products and drugs are used for root treatments. Their aim is to prolong the vitality of the tooth when this seems possible (Calcium hydroxide). If the vitality of the tooth cannot be preserved, the pulp chamber and the root canals will be disinfected and hermetically sealed. The disinfectants will be active (for example corticoids) but the permanent seal of the canals will be done with an inert substance (for example gutta- percha).
The MTA (Mineral Trioxide Aggregate) is a very biocompatible material that has been used successfully since several years, particularly in endodontics involving apical resection.