Impact Fracture Resistance of Two Titanium-Abutment Systems Versus a Single-Piece Ceramic Implant

Autor:	E.D. Rekow, Nelson R.F.A. Silva, Van P. Thompson, Pedram Nourian, Paulo G. Coelho
Rok vydání:	2011
Předmět:	Materials science Abutment chemistry.chemical_element Fracture mechanics Dental Abutments chemistry visual_art visual_art.visual_art_medium Implant Ceramic Oral Surgery Composite material General Dentistry Elastic modulus Titanium Abutment Screw
Zdroj:	Clinical Implant Dentistry and Related Research. 13:168-173
ISSN:	1523-0899
Popis:	Background: The number of patients with oral implants has increased significantly. However, the literature addressing the effect of impact force on titanium and/or ceramic implants is inconclusive. This study sought to determine the fracture resistance to impact load of titanium and ceramic endosseous oral implants. Materials and Methods: Endosseous oral implants were vertically positioned in two different mounting media: brass and a bone-simulation material. The implant configurations tested included an experimental one-piece Y-TZP implant and a commercially available titanium implant (external hex) with both titanium and zirconia abutments. The specimens were subjected to an impact load using a pendulum impact tester with tup weights varying from 0.9 to 4.5 kg delivered at a radius of 40.64 mm. Loads were delivered to the abutment at a point 4.27 mm above the implant fixture and block junction. Statistical differences (p
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f3b53e9731b1c252c12e2c5b7aa00c76 https://doi.org/10.1111/j.1708-8208.2009.00187.x Zobrazit plný text záznamu Plný text