The restoration of an endodontically treated tooth is still an issue and always a widely debated topic. Endodontically treated teeth (ETT) are more brittle and they are generally more exposed to fracture than vital ones. This increased fragility is more due to the pathology (fracture, caries etc.) and to some invasive procedures realised to devitalise and restore the tooth element than to the loss of pulp vitality. Indeed, the restoration of devitalised teeth with adhesive procedures has been recently encouraged for both the root and the crown, since adhesion guarantees retention and cohesion without the need of invasive macro-retentive elements. Laboratory performances of endocrowns in terms of the mechanical failure loads/fatigue resistance and the adhesive retention are good and, in any case, comparable to those of conventional prosthodontic solutions. Results of recent in-vivo trials have also validated the clinical performances of this adhesive post-free restorative strategy.