Rehabilitation of Endodontically Treated Posterior Teeth With Minimal Invasive Approach- A Clinical Prospective Study

Conventional methods of restoring teeth like full coverage crowns, which depend on mechanical retention, are being replaced by modern methods which depend on adhesion. This shift was attributed to the increased popularity of the minimally invasive dentistry philosophy, and the development of reliable adhesive systems, as well as the etchable ceramics. The preservation of coronal tooth structure is crucial for clinical success and for maintaining biomechanical, adhesive, functional, and esthetic balance. The advent of adhesive dentistry and advancement in dental materials have resulted in mechanical properties close to the dental tissues, thereby offering a conservative treatment option to restore, reinforce, and protect endodontically treated teeth (ETT). Directly bonded restorations are indicated for teeth with the minimal loss of coronal tooth structure and can be considered effective for short-term success of root canal treated teeth. However, indirect restorations could be considered for the strengthening of the tooth with moderate loss of tooth structure, following the adequate adhesive protocols. This clinical study evaluates  indirect adhesive restorations such as endocrowns, adhesive inlays, and onlays for the duration of 1,3,6,12 months.