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To determine and compare the surface morphological changes in the stainless steel, and titanium-based alloys such as TMA, and CuNiTi in saliva solution. Each sample is made up of a 60 mm long wire engaged in 6 brackets welded on 0.18×0.006 inches molar band strip and tied with ligature wire, Six such samples (Two each)from three different types of three kind of wires i.e. TMA (Titanium-Molybdenum alloy or , SS (Stainless Steel), and CuNiTi (Copper-Nikil- β Titanium) Titanium) were immersed in saliva solution The sample was divided into interbracket and intrabracket area. Each sample was divided into six parts each contains interbracket and intrabracket area. The corrosion of arch wires will be detected using SEM after a period of 12 weeks of incubation in artificial saliva. The inter bracket corrosion rate was significantly less as compared to the intra bracket corrosion for all materials in saliva. There was significant increase in corrosion rate in Stainless Steel as compared to TMA and CuNiTi wires. There was significantly less corrosion was found in CuNiTi wires. There was significant increase in corrosion in saliva. The highest corrosion was seen in stainless steel followed by TMA and minimum by CuNiTi wires.