Introduction:
Implant planning and placement in the fully edentulous maxilla can
present challenges both surgically and prosthetically whether a
removable or fixed approach is planned. Placement of the implants
free-hand does not take the osseous anatomy and its structures into
consideration and may lead to problems such as nerve or blood vessel
impingement as well as implant extension into sinuses or the nasal
fossa. Guided placement has become the standard practice whether
treating the full arch or partially edentulous arch. While printed
surgical guides are the standard practice, There may be circumstances
where printed guide is not possible.