Dental treatments are used routinely throughout the world to replace missing teeth. With the broadening of treatment options and an increasing number of clinicians who provide implant therapy, it is important to ensure that the treatment methods used meet the highest clinical standards. The ITI Treatment Guide series is a compendium of evidence-based implant-therapy techniques and procedures for daily practice. Written by renowned clinicians and supported by contributions from expert practitioners, the ITI Treatment Guides provide a comprehensive overview of various clinical options. The management of different clinical situations is discussed with an emphasis on sound diagnostics, evidencebased treatment concepts, and predictable treatment outcomes with minimal risk to the patient. After a very successful series of eight previous treatment guides, it seems logical to think about our patients as they grow older and may become frail and more dependent on care. Volume 9 of the ITI Treatment Guide attests to the ITI's holistic approach to implant dentistry and to its professional responsibility for patients who have aged with implant-supported restorations in place, as well as for patients at a more advanced age who, until late in life, can benefit from the progress we have made in terms of the materials and techniques that present-day implant dentistry has to offer. The forthcoming Volume 10 of the ITI Treatment Guide series goes back to the roots by describing current treatment modalities and materials for implant treatment in the esthetic zone.