Introduction :
Maxillary sinus grafting was first described by Dr. Hilt Tatum who
modified the Caldwell–Luc technique in the 1970s, and it has been
recognized as a procedure with high predictability to date (1).
Many factors can influence the difficulty and complexity of this
intervention and must be thoroughly assessed before a lateral sinus
augmentation, such as the presence of a bony septum, the location of the
alveolar antral artery, the thickness of the schneiderian membrane, and
more rarely the presence of a sinus osteoma.
Craniofacial osteomas may appear on any bone of the cranium or face or
within a paranasal sinus. Osteomas within the paranasal sinus are
relatively rare, they are found in 0.01% to 0.43% of patients; of
these, up to 80% occur in the frontal sinus (2).
The maxillary sinus is involved in less than 2% of all cases, it
usually appears on the lateral wall of the sinus (3).
The current paper will present and discuss the management of a unitary
posterior edentulim (tooth 16) with a severe vertical defect and the
presence of an osteoma on the lateral wall of the sinus regarding the
edentulous site.