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The Fracture Strength Of Ceramic Brackets : An Update And Comparison, Christian P. Manley
The Fracture Strength Of Ceramic Brackets : An Update And Comparison, Christian P. Manley
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this study was to compare the fracture strength of ceramic brackets which are currently on the market with ceramic brackets tested in a previous study at Loma Linda. Fracture strengths of standard edgewise ceramic brackets vs. pre-torqued ceramic brackets and bicuspid ceramic brackets vs. central incisor ceramic brackets were also compared.
A total of 160 Polycrystalline brackets, 8 categories in groups if 20, were tested for fracture strength. Each bracket was tested using the same testing model that was used in the previous study at Loma Linda. The brackets were tested by torquing a wire within the …