Sure, clear aligners are effective in correcting open bite, in some cases rubber bands may be used between top and bottom jaws to get them apart.
In this case, the patient had gaps between the upper and lower teeth, which made it impossible to bite food using the front teeth. However, towards the end of the treatment with Oralign clear aligners, the gaps closed, and the bite improved. Now, the patient is satisfied and able to bite into a burger using their front teeth.