Objective: to compare the rate of space closure using stainless steel and niti closed coil spring and to find out the amount of anchor loss during retraction in maxillary arch.
Materials and method: the sample consisted of 14 upper and 12 lower arches from fifteen consecutively treated patients of either sex requiring orthodontic space closure in first premolar extraction site area with fixed appliances.
Results: There was no statistically significant difference found between NiTi and stainless steel closed coil spring enmasse retraction and anchorage loss in maxillary arch was statically similar with both type of springs.
Conclusion: Both nickel-titanium and stainless steel closed coil springs are efficient in providing space closure at similar rate and No significant difference was found in terms of anchorage loss by nickel-titanium and stainless steel closed coil springs.
Impact Factor
2022: 6.012
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