Abstract
Zygomatic implants (ZI) are longer implants which extend beyond the maxilla to anchor into the zygomatic bone to offer secure support for implant-based reconstructions. There is a considerable body of scientific evidence to support the use of ZI, with success rates that compare favorably with graft surgery in combination with dental implants. However, when compared with treatment with dental implants, zygomatic implant reconstructions may present with an additional array of complications. Compelling arguments for the use of ZI and situations where an alternative should be considered are described.
The evolution of the technique during more than three decades is explained so that the reader may understand the rationale behind the changes and the origin of the ZAGA Concept. ZAGA is the acronym for Zygoma Anatomy-Guided Approach, the concept used to place zygomatic implants in a prosthetically driven manner and according to the anatomy of the patient. ZAGA parameters and protocols for decision making with regard to the type of osteotomy and ZI path will be shared. The genesis of the current zygomatic implants system Straumann ZAGA®-Round and ZAGA®-Flat, from design to manufacturing, up until reaching the patients is explained. The understanding of the ZAGA Zone characteristics and physiology together with implants engineering will facilitate the correct use of both designs. Finally, the ORIS criteria, a systematic way to estimate and report the success/failure of ZI will be described.
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Acknowledgments
It is with great pleasure that we acknowledge the work done by Drs. Edmond Bedrossian and SepehrZarrine in collaboration with Dr. Carlos Aparicio to improve the efficiency of the drills required for zygomatic surgery contained in the Straumann cassette.
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Aparicio, C., Dawood, A., Ucer, C. (2023). Zygomatic Implants. The ZAGA Concept. In: Rinaldi, M. (eds) Implants and Oral Rehabilitation of the Atrophic Maxilla. Springer, Cham. https://doi.org/10.1007/978-3-031-12755-7_11
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DOI: https://doi.org/10.1007/978-3-031-12755-7_11
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