title: A novel computational method for real-time preoperative assessment of primary dental implant stability.
abstract: A novel methodology which allows for fast and fully automatic structural analysis during preoperative planning for dental implant surgery is presented. This method integrates a fully automatic fast finite element solver within the framework of new concepts in computer-assisted preoperative planning for implant surgery. The planning system including optimized structural planning was validated by experimental results. Nine implants were placed in pig mandibles and mechanically loaded using a testing rig. The resulting displacements were measured and compared with those predicted by numerical analysis during planning. The results show that there were no statistically significant differences (P = 0.65) between the results of the models and the experiments. The results show that fast structural analysis can be integrated with surgical planning software allowing the initial axial implant stability to be predicted in real time during planning. It is believed that such a system could be used to select patients for immediate implant loading and, when further developed, be useful in other areas of preoperative surgical planning.
authors.affiliation: M. E. Müller Research Center for Orthopaedic Surgery, Institute for Surgical Technology and Biomechanics, University of Bern, Switzerland.
authors.forename: Sigbjørn
authors.initials: S
authors.lastname: Olsen
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Ferguson
authors.forename: Christian
authors.initials: C
authors.lastname: Sigrist
authors.forename: Wolf-Rüdiger
authors.initials: WR
authors.lastname: Fritz
authors.forename: Lutz P
authors.initials: LP
authors.lastname: Nolte
authors.forename: Wock
authors.initials: W
authors.lastname: Hallermann
authors.forename: Marco
authors.initials: M
authors.lastname: Caversaccio
mesh_terms: D000818:Animals; D019245:Compressive Strength; D003198:Computer Simulation; D003199:Computer Systems; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D017268:Dental Prosthesis Retention; D003799:Dental Stress Analysis / Q000379:methods*; D004548:Elasticity; D020342:Finite Element Analysis; D007575:Jaw, Edentulous / Q000000981:diagnostic imaging; D012986:Software Validation; D025321:Surgery, Computer-Assisted / Q000379:methods*; D013552:Swine; D014057:Tomography, X-Ray Computed
chemical_list: D015921:Dental Implants