Placing implants in the posterior region of the maxilla may require expanding the floor of the
maxillary sinus. A major surgical procedure developed 30 years ago used lateral window
access to the sinus cavity to achieve this. In the intervening years, less invasive techniques
using a crestal approach were introduced; while they have reduced the complication and
morbidity risks, they require micro-surgical skills. This review of the progression of maxillary
sinus augmentation from major surgery to a minimally invasive procedure explores the …