Whether you're considering Invisalign or already in treatment, its important to understand how Invisalign works. Find answers to common Invisalign questions. Then schedule an appointment with Dr. M Ta your experience Markham Invisalign provider.Whether you're considering Invisalign or already in treatment, its important to understand how Invisalign works. Find answers to common Invisalign questions. Then schedule an appointment with Dr. M Ta your experience Markham Invisalign provider.