The difference must be apparent from the trial fitting applications
The initial aim is to reduce the Cobb angle by the half after 1 month of continuous wearing
There are, of course, cases where the angle is even reduced to 1/4 after 5 months of wearing
Even in large angles of > 60°
The result after 1 year of treatment must be maintained even after removal of the brace.
Of course it must be maintained after the end of the treatment, following bone maturation.