title: The influence of implant body and thread design of mini dental implants on the loading of surrounding bone: a finite element analysis.
abstract: Mini dental implants (MDI) were once thought of as transitional implants for treatment in selected clinical situations. Their reduced diameter makes them a very attractive option for patients with poor tolerance to maxillary and mandibular prostheses. Using the method of finite element analysis, a series of different designed MDI prototypes have been investigated. The prototypes differed in the geometry of implant body and/or design of implant head. The load transfer of the implant prototypes to the idealised alveolar bone has been regarded and the prototypes have been compared to each other and to a number of standard commercial implants. The prototype models have been virtually placed in the idealised bone with a cortical thickness of 1.5 mm and loaded laterally 30° from the implant's long axis. The condition of immediate loading was assumed for the numerical analyses through defining a contact interface between the implant and bone bed. The numerical analysis in this study showed that the design of the investigated prototype MDI of group 3 (mini-ball head) is the most advantageous design.
authors.affiliation: .
authors.forename: Arpad
authors.initials: A
authors.lastname: Toth
authors.affiliation: .
authors.forename: Istabrak
authors.initials: I
authors.lastname: Hasan
authors.affiliation: .
authors.forename: Christoph
authors.initials: C
authors.lastname: Bourauel
authors.affiliation: .
authors.forename: Torsten
authors.initials: T
authors.lastname: Mundt
authors.affiliation: .
authors.forename: Reiner
authors.initials: R
authors.lastname: Biffar
authors.affiliation: .
authors.forename: Friedhelm
authors.initials: F
authors.lastname: Heinemann
mesh_terms: D019245:Compressive Strength / Q000502:physiology*; D015921:Dental Implants; D017267:Dental Prosthesis Design / Q000379:methods*; D003799:Dental Stress Analysis / Q000379:methods*; D020342:Finite Element Analysis; D006801:Humans; D008437:Maxilla / Q000502:physiology / Q000601:surgery*; D014070:Tooth / Q000502:physiology* / Q000601:surgery*
chemical_list: D015921:Dental Implants
keywords: displacement; finite element analysis; implant geometry; mini dental implants; stress