title: Bone remodeling induced by dental implants of functionally graded materials.
abstract: Functionally graded material (FGM) had been developed as a potential implant material to replace titanium for its improved capability of initial osseointegration. The idea behind FGM dental implant is that its properties can be tailored in accordance with the biomechanical needs at different regions adapting to its hosting bony tissues, therefore creating an improved overall integration and stability in the entire restoration. However, there have been very few reports available so far on predicting bone remodeling induced by FGM dental implants. This article aims to evaluate bone remodeling when replacing the titanium with a hydroxyapatite/collagen (HAP/Col) FGM model. A finite element model was constructed in the buccal-lingual section of a dental implant-bone structure generated from in vivo CT scan images. The remodeling simulation was performed over a 4 year healing period. Comparisons were made between the titanium implant and various FGM implants of this model. The FGM implants showed an improved bone remodeling outcome. The study is expected to provide a basis for future development of FGM implants.
authors.affiliation: School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.
authors.forename: Daniel
authors.initials: D
authors.lastname: Lin
authors.forename: Qing
authors.initials: Q
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Michael
authors.initials: M
authors.lastname: Swain
mesh_terms: D000465:Algorithms; D016301:Alveolar Bone Loss; D001672:Biocompatible Materials; D015519:Bone Density; D016723:Bone Remodeling / Q000502:physiology*; D003094:Collagen / Q000737:chemistry; D003198:Computer Simulation; D003722:Dental Alloys / Q000737:chemistry; D015921:Dental Implants; D020342:Finite Element Analysis; D006801:Humans; D006882:Hydroxyapatites / Q000737:chemistry; D008422:Materials Testing; D008956:Models, Chemical; D016348:Osseointegration; D011474:Prosthesis Design; D013718:Tensile Strength; D014025:Titanium / Q000737:chemistry; D014057:Tomography, X-Ray Computed
chemical_list: D001672:Biocompatible Materials; D003722:Dental Alloys; D015921:Dental Implants; D006882:Hydroxyapatites; D003094:Collagen; D014025:Titanium