Clinical Performance of the Indirect Resin Composite Restorations in Endodontically Treated Teeth

Not only the quality of endodontic treatment that affects the prognosis of the endodontically treated tooth, but the subsequent restorative treatment as well. Coverage, Endocrowns, Onlays, Inlays Restorations on Fracture Resistance of Endodontically Treated Molars, it was found that the worst results came to the inlay restorations and this was attributed to geometric form of preparation that exert a wedging force acting to split the tooth when under occlual stress however, onlay and full coverage direct the force along the long axis by overlaying the cusp tips and a portion of buccal and lingual surface thus opposing the wedging action created by internal design of restoration (Magne P and Belser C. et al 2003) That's why, choosing such a design as a comparator to the design of the cuspal reduction and further coverage (onlay) is crucial to show the importance of cuspal coverage for the indirect resin composite restoration in the endodontically treated teeth.

In an invitro study done by (Ahmed Hamdy 2015) investigating the effect of Full The amount of lost internal tooth structure as well as the coronal hard tissue in an endodontically treated tooth is considered the main factors that make the tooth susceptible to biomechanical failure when compared to a vital tooth. (Guo J et al 2016) .