MAXILLARY SINUS MEMBRANE PERFORATION FROM NASAL SUCTION TECHNIQUE AND ULTRASONIC APPROACH vs. CONVENTIONAL ROTATIVE INSTRUMENTS

To compare the efficacy of two different techniques for sinus membrane elevation for maxillary lining lifted using a lateral window approach: nasal suction technique and ultrasonic surgery approach vs. traditional approach. Twelve partially edentulous patients having bilaterally 1 to 5 mm of residual bone height and at least 5 mm bone width below the maxillary sinuses as measured on Computed Tomography (CT) scans were randomized to receive two 2-stage sinus lift procedures using the lateral window approach. In one side the sinus lining the membrane was elevation with nasal suction technique and ultrasonic surgery approach whereas the contralateral side the membrane was elevation after osteotomy prepared using a round oral surgery bur. No patient dropped out. In the group 1 (control), a four small peroration of membrane (< 5 mm) was observed. In the group 2 (test) no perforation of membranes was observed. A statistically significant difference was present between the incidence of sinus membrane perforation in group I vs. II (control vs. test) p-value = 0.08. In conclusion the sinus lift with ultrasonic surgery and nasal suction technique is useful to prevent a perforation of sinus membrane