Not alot of problems but yes, early cavities, fragile teeth, had to have teeth pulled because they wouldn't fall out and adult teeth were coming in sideways. I have read dental problems are common with IBDers and O's dentist and oral surgeon agree.
Also for some reason O's teeth just get more build up than my other kids. Faster too. According to dentist also thanks to IBD. Now she uses an electric toothbrush to help get a really good cleaning in.
Your theory is probably right Ang. Calcium & vitamin deficiencies.