Table 4: Overall averaged marginal bone loss and bone loss at the 1.5 and 1.0 mm thresholds for sinus membrane perforations. * Fisher’s Exact Test P=0.410. ** Fisher’s Exact Test P=0.215.

	No Membrane Perforation	Membrane Perforation
Bone loss <1.5 mm* Number (%)	25 (89.3%)	6 (66.7%)
Bone loss ≥1.5 mm Number (%)	3 (10.7%)	3 (33.3%)
Bone loss <1.0 mm** Number (%)	22 (78.6%)	5 (55.6%)
Bone loss ≥1.0 mm Number (%)	6 (21.4%)	4 (44.4%)