Therefore, the sinus membrane has to be elevated carefully from the bony floor using antral curette [15].
When the perforation of the maxillary sinus membrane was encountered during any case with a lateral approach, the bony window was widened with a Kerrison rongeur to expose the perforated sinus membrane after which the membrane was separated from sinus wall and elevated carefully (Figs. 1 and 2).
Then, a full-thickness flap was elevated carefully.
The operated limb was elevated and carefully observed at regular intervals for any neurovascular deficit.
The Schneiderian membrane was carefully elevated using special mucosal sinus elevators until sufficient space for the impaction of bone material was created.
It was clear in Keeping Up Appearances, the BBC1 series that ran from 1990-95, that Patricia Routledge's Mrs Bucket came from a lower-class family with people and secrets that threatened to embarrass her carefully elevated status.
A bony top-hinge trap-door was mobilized and turned inward and upward into a horizontal position in the maxillary sinus, together with the carefully elevated Schneiderian membrane.
The membrane was carefully elevated from 6 to 8 mm depending on visual assessment of the stretching capability of the membrane (Fig. 3).
When a medial plate was used, the ulnar nerve was carefully elevated from the humeral metaphysis and the medial intermuscular septum allowing for the plate to be slid underneath.
After the removal of the bone window, the membrane was carefully elevated from the sinus floor and two implants (Replace Select™ Tapered, TiUnite™; Nobel Biocare AB, Göteborg, Sweden) were inserted through the maxillary ridge into the space created under the elevated sinus membrane (Fig. 3).
The sinus membrane was carefully elevated and rotated, together with the osteotomy window, inward and upward.
