The Esthetic Biological Contour (EBC) Concept 2.0: How to Manage Each Zone of the Implant Restoration Emergence Profile

Objective: Dental implants are at a biological disadvantage compared to natural teeth due to differences in the peri-implant mucosal architecture. Proper design of the prosthetic implant components plays an essential role in maintaining stable hard and soft tissues around implants. The Esthetic Biological Contour (EBC) zones have been described as a structured framework for understanding and managing the peri-implant emergence profile. Appropriate morphology, material selection, and surface treatment within each zone can enhance both esthetic and biological outcomes. This article illustrates a zone-by-zone guide for the design and management of the emergence profile of implant restorations, integrating esthetic, mechanical, and biological principles. Clinical considerations: Emergence profile design depends on multiple factors, including the three-dimensional position of the implant and the volume and quality of peri-implant soft tissues. A comprehensive understanding of how prosthetic decisions influence peri-implant health is essential for minimizing the risk of biological and esthetic complications. Clinical significance: A well-designed emergence profile promotes the long-term stability of the peri-implant tissues and directly influences the esthetic and biological success of implant therapy.