Esthetic restorations: observations and insights gained over a 5-year period demonstrated with three case reports.

This article presents two prosthodontically treated patient cases that were observed over a period of at least 5 years after treatment. The evaluation, diagnosis, treatment planning, and treatment stages were critically reviewed and reassessed from different perspectives. The conclusions drawn from this evaluation were subsequently implemented in a third clinical case. To ensure the long-term success of a restoration, certain biologic and mechanical principles must be observed, and the appropriate prosthodontic treatment must be chosen accordingly.