title: Comparison of 2 crestal sinus floor lift techniques performed on human cadavers.
abstract: OBJECTIVE
  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.
  
  
  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.
  
  
  CONCLUSIONS
  The Intralift technique is an interesting alternative to the Summers technique.
authors.affiliation: *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.
authors.forename: Julien
authors.initials: J
authors.lastname: Llopet
authors.forename: Michel
authors.initials: M
authors.lastname: Montaudon
authors.forename: Etienne
authors.initials: E
authors.lastname: Guillaud
authors.forename: Bruno
authors.initials: B
authors.lastname: Ella
mesh_terms: D002102:Cadaver; D006801:Humans; D059546:Sinus Floor Augmentation