Thank you for your enquiry. Anterior open bites are one of the side effects of excessive wearing of appliances such as the NTI splint. As the NTI splint only covers the front teeth, the back teeth are free to erupt more and causes the situation you have now.
I agree with Dr Sylvia and the team from the National Dental Centre, both Invisalign and fixed braces (metal or ceramic/white) are able to resolve open bites and align the lower teeth. You can read my recent article on Invisalign to help you decide which one to go for.
Anterior open bites tend to open up again, especially if you started off with an anterior open bite. Retainers after braces would be vital for the maintenance of your result.
Moving forward, perhaps a full coverage splint (covering all the teeth instead of just the front teeth) would be more ideal for you after orthodontic treatment is completed. Hope this helps!
Kind regards,
Dr Geraldine Lee
