Effects of tetrapod-like zinc oxide whisker incorporation on the mechanical properties of composite resin
SHEN Li-juan
WANG Yi-zhen
CHEN Ji-hua
NIU Li-na
FANG Ming
Abstract：AIM:To compare the effects of tetrapod-like zinc oxide whisker(T-ZnOw)antibacterial agent and a silver-based inorganic antibacterial agent incorporation on the mechanical properties of the composite resin.METHODS:T-ZnOw antibacterial agent powder and a kind of silver-based inorganic antibacterial agent were incorpo-rated into a serf-curing composite resin at 3%.5%or 10%and 1%,3% or 5%,respectively.The flexural strength(FS),compressive strength(CS)and diametral tensile strength(DTS)of the resin specimens were subsequently analyzed on a computer-controlled universal testing machine.RESULTS:Addition of low concentrations(3% and 5%)of T-ZnOw antibacterial agent improved the mechanical properties of the resin in dose-dependence.In comparison with the control group A.5% incorporation of T-ZnOw significantly increased the FS,CS and DFS of the composite resin by38.36%,14.42% and 41.63 respectively.On the contrary,silver-based inorganic antibacterial agent did not improve the mechanical properties of the composite resin.5% incorporation of silver-based inorganic antibacterial agent signifi-cantly decreased the FS,CS and DFS of the composite resin by 17.97%,9.29% and 19.47,respectively.CONCLUSION:Within certain concentrations,T-ZnOw antibacterial agent could signifieanfly increase the mechanical properties of the composite resin.The most profound effect Was observed to be 5% T-ZnOw antibacterial agent incorporation.
Keywords：composite resintetrapod-like zinc oxide whiskerssilver-based inorganic antibacterial agentmechanical property
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 39-42 )