Open AccessDental implants, what should be known before starting an in vitro study
Author(s) -
Kim Verplancke,
Wim De Waele,
Hugo De Bruyn
Publication year - 2011
Publication title -
sustainable construction and design
Language(s) - English
Resource type - Journals
eISSN - 2295-9092
pISSN - 2032-7471
DOI - 10.21825/scad.v2i3.20534
Subject(s) - abutment , dental implant , implant , finite element method , modulus , materials science , structural engineering , dental abutments , dentistry , biomedical engineering , orthodontics , computer science , engineering , composite material , medicine , surgery
Dental implant–abutment systems are used as anchors to support single or multi-unit prosthesesfor partially or fully edentulous patients. In vitro experiments and finite element analyses can be used toinvestigate their mechanical performance. Accurate information is needed on the geometry, materialproperties and friction coefficients of different implant-abutment components, on real loading conditions,and elastic properties of human jawbone. Information can be retrieved from previously reported studies orexperiments. This paper provides a summary of a small but representative part hereof. Research hasshown that the elastic properties of human jawbone are direction dependent and that the Young’s modulus(E) also depends on the bone type. Other studies investigated the maximum bite forces and reported abroad range of results, from 200 to 2000 N. Static experiments are typically performed with axial or bendingloads to evaluate the performance of dental implant systems. Dynamic tests simulate chewing cycles andare used to evaluate the fatigue endurance. The supporting structure of the implant system should berepresentative for the bone structure. Finite element models are ideally suited to evaluate thebiomechanical behaviour of implant systems. Accurate representation of the supporting bone and itsinteraction with the implant is crucial.