Abstract
The joining of a metal framework is frequently necessary to create individual orthodontic appliances and to achieve efficient treatment procedures. Stainless steel wires can be fused together by welding but this generally required reinforcement with solder. The present study was conducted to compare and evaluate the mechanical properties ( i.e. the tensile strength and elastic modulus )of silver soldered joints of stainless steel. A total of 40 wire specimens were prepared. The tensile strength and elastic modulus tests were carried out via by universal testing machine. the results indicated that the mean tensile strength of soldered group is lower than that of soldered group. As well, there are highly significant differences between two groups for tensile strength (p<0.01). Furthermore, the soldered group has the highest mean of elastic modulus than that of control group. As well, there are highly significant differences between two groups for elastic modulus (p<0.01). It is concluded that Stainless steel wires (Remanium)have superior mechanical properties with regard to tensile strength and elastic modulus.
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