There's "oral defensiveness" or "oral aversion" but that usually has to do with infants/toddlers learning to eat with their hands/feed themselves because of some trauma earlier? Such a syndrome is still controversial but apparently even when the "problems" with pain or difficulty swallowing, surgery, etc. are resolved the psychological "habit" of not wanting to put things/food in their mouth doesn't just happily go away.

http://www.empoweredparents.com/pick...ckyeating7.htm