Extreme sensitivity to incisor during adult Braces treatment. Teeth root seems to be tipping outside bone. Normal? (photo)

Had braces 9 month.Last 3 weeks top left incisor is extremely sensitive to hot & cold (pain shoot up my nose just breathing in slightly cold air)My Ortho took xray,didn't find anything. Is it because tooth tipping inward and root tipping outward and protruding out of bone?See pic(left incisor in photo, not the broken one) white shadow on top of left incisor is root tip. Hurts when pressing on it. Is that normal? It's not the broken incisor(nothing on x-ray and it's been broken for a long time)

No doctor answers yet