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Comparison of 2 crestal sinus floor lift techniques performed on human cadavers
Julien Llopet1, Michel Montaudon, Etienne Guillaud
1*Resident, Department of Odontology and Oral Health, Bordeaux University, Bordeaux Cedex, France. †Professor, Laboratory of Anatomy, Bordeaux University, Bordeaux Cedex, France. ‡Engineer, CNRS-UMR 5287-INCIA, Bordeaux University, Bordeaux Cedex, France. §Associate Professor, Laboratory of Anatomy, Bordeaux University, Bordeaux Cedex, France; Department of Odontology and Oral health, Bordeaux University, Bordeaux Cedex, France.
Purpose:
To compare the effectiveness of 2 different techniques to lift the maxillary sinus floor through a crestal approach on fresh human cadaver heads: the Intralift technique using Piezosurgery and the Summers technique using osteotomy.
Materials And Methods:
Two different protocols were simulated on 11 fresh human cadaver heads or 22 maxillary sinuses. Inclusion criteria were: bilateral edentulous maxilla with a residual ridge height between 3 and 9 mm. CT scans were performed before and after surgery on all fresh cadaver heads. Both Intralift and Summers techniques were performed on the same maxilla on the 2 sinuses. The surgical procedure was performed by 2 independent operators, 1 experienced and 1 novice to compare the 2 results. The parameters assessed were the procedure duration and the sinus membrane preservation.
Results:
The procedure duration was shorter when the operator was more experienced (P = 0.03). There was a correlation between the operator dexterity and the time required for surgery. The Intralift technique seemed safer for sinus membrane preservation.
Conclusion:
The Intralift technique is an interesting alternative to the Summers technique.
