title: Sinus floor elevation with a crestal approach using a press-fit bone block: a case series.
abstract: This prospective study aimed to provide detailed clinical information on a sinus augmentation procedure, i.e., transcrestal sinus floor elevation with a bone block using the press-fit technique. A bone block is harvested with a trephine burr to obtain a cylinder. This block is inserted into the antrum via a crestal approach after creation of a circular crestal window. Thirty-three patients were treated with a fixed prosthesis supported by implants placed on 70 cylindrical bone blocks. The mean bone augmentation was 6.08±2.87 mm, ranging from 0 to 12.7 mm. Only one graft failed before implant placement. During surgery and the subsequent observation period, no complications were recorded, one implant was lost, and no infection or inflammation was observed. This proof-of-concept study suggests that the use of a bone block inserted into the sinus cavity via a crestal approach can be an alternative to the sinus lift procedure with the creation of a lateral window. It reduces the duration of surgery, cost of treatment, and overall discomfort.
authors.affiliation: Implant Dentistry, Hospices Civils de Lyon, Lyon, France.
authors.forename: M
authors.initials: M
authors.lastname: Isidori
authors.affiliation: Investigation Clinical Centre of Grenoble, INSERM, Grenoble, France.
authors.forename: C
authors.initials: C
authors.lastname: Genty
authors.affiliation: Medico-economic Evaluation Unit, University Hospital of Grenoble, Grenoble, France; ThEMAS TIMC UMR CNRS 5525, Grenoble Joseph Fourier University, Grenoble, France.
authors.forename: S
authors.initials: S
authors.lastname: David-Tchouda
authors.affiliation: Department of Oral Surgery, Dental University of Lyon, University Claude Bernard, Lyon, France. Electronic address: thomas.fortin@univ-lyon1.fr.
authors.forename: T
authors.initials: T
authors.lastname: Fortin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016025:Bone Transplantation / Q000379:methods*; D019094:Dental Prosthesis, Implant-Supported; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011862:Radiography, Panoramic; D059546:Sinus Floor Augmentation / Q000379:methods*; D016896:Treatment Outcome
keywords: allograft; atrophy; autogenous; bone block; bone graft; maxillary sinus augmentation; minimally invasive; oral implants; sinus floor elevation