Can yoga and Pilates cure scoliosis?

No. Over hundreds of years, the medical field has tried hundreds of things to cure scoliosis. This has included strengthening exercises, physical therapy, chiropractic care, estim, traction, yoga, pilates, and many other things. Nothing has ever been shown to help. Mild cases don't usually need treatment. Severe cases need surgery. Thank you for your question.
No. No but they are great exercises for your core muscle development to help minimize the risk of developing back pain .