Influence of Implants Diameter on Maximum Resistant Load

Abstract

In recent, dental Implants with various diameters have been clinically used. Although it is considered that the thicker implants can resist larger occlusal force, this theory is not clarified by quantitative data. The aim of this study was to evaluate by using geometrical analysis for the relevancy between diameter of dental implants and fracture load, which is given from tensile-breaking test.
Fracture load of both prosthetic screw and abutment screw (Nobel Biocare and 3i) were measured with a universal testing machine. The influence of the diameter of the implant for fracture load was geometrically analyzed for simulating the single-tooth implant. Cusp slope angle was designed at 30 degrees.
Fracture load of the screws were increased with the increace of diameter of the screws. Fracture load of the screw made of titanium alloy (Nobel Biocare) was greater than that of the screw made of gold alloy (3i). On the other hands, maximum resistance load of the prosthetic screw increased according to increase the diameter of the platform.Maximum resistance load of abutment screw decreased according to increase the height of the implant.