Effect of rotating osteotomes on primary implant stability-an in vitro investigation.
Achieving sufficient primary implant stability in poor-quality bone is difficult. Other than for conventional osteotomes, little is known about the effectiveness of screw-shaped spreaders in condensing bone and increasing primary stability. Therefore, implant stability quotient (ISQ) measurements of implants placed in bone surrogate models were conducted. Whereas bony microarchitecture had no effect on implant stability, initial bone density, presence of a cortical layer, and the use of screw-shaped spreaders significantly increased ISQ levels.
Department of Prosthodontics, School of Dental Medicine, University of Erlangen-Nuremberg, Erlangen, Germany.
Philipp
P
Kreissel
Felix
F
Kölpin
Friedrich
F
Graef
Manfred
M
Wichmann
Matthias
M
Karl
D015519:Bone Density; D001842:Bone and Bones / Q000033:anatomy & histology; D003758:Dental Implantation, Endosseous / Q000295:instrumentation*; D017268:Dental Prosthesis Retention; D006801:Humans; D008953:Models, Anatomic; D010027:Osteotomy / Q000295:instrumentation*; D012399:Rotation