Pterygoid Implants and Zygomatic Implants: How Posterior Anchorage Changes Planning in the Atrophic Maxilla
The Posterior Maxilla Remains The Hardest Region to Restore Severe pneumatisation of the sinus, thin residual crestal bone and poor D3–D4 density make conventional crestal fixtures unpredictable in the posterior maxilla. Extended-length implants that engage bone outside the alveolar envelope offer a different planning route — one where anchorage is sought in cortical structures rather…









