Preface

The Global Consensus for Clinical Guidelines (GCCG) is a worldwide, multi-stakeholder initiative aimed at delivering trustworthy, practice-oriented guidance in implant dentistry. Jointly guided and funded by the European Association for Osseointegration (EAO), the International Team for Implantology (ITI), and the Osteology Foundation (OF), with dissemination supported by publishing partners (Wiley, Quintessence Pub.), this first GCCG focuses on the rehabilitation of the edentulous maxilla and explicitly integrates patient- and clinician-reported outcomes across the entire clinical workflow. Methodologically, the GCCG follows an S2k level framework under the principles of the Association of the Scientific Medical Societies in Germany (AWMF) and a transparent, structured process: eight systematic reviews, six structured surveys, a three-round Delphi to define a Core Outcome Set of 34 outcomes, and an in-person consensus in Boston, June 16–18, 2025, where 105 delegates from 26 countries deliberated and voted using nominal group technique and predefined thresholds. This global initiative was further strengthened by invited and partner organizations that broadened representation and dissemination, including the Chinese Stomatological Association (CSA), Japanese Society of Oral Implantology (JSOI), Korean Academy of Oral and Maxillofacial Implantology (KAOMI), Oral Reconstruction Foundation (ORF), Osseointegration Society of India (OSI), and the Brazilian Society of Periodontology (SOBRAPI). Gil Alcoforado: writing – original draft. Frank Schwarz: writing – original draft. Ronald E. Jung: writing – original draft. The GCCG was funded by grants from the European Association for Osseointegration, the International Team for Implantology, and the Osteology Foundation. All delegates disclosed secondary interests using the standardized ICMJE disclosure form. Potential conflicts of interest (CoIs) were actively managed in accordance with Guidelines International Network (GIN) principles. Data sharing not applicable to this article, as no datasets were generated or analyzed during the current study.