Q. Dear Mr Bohara, My top central incisors or the teeth shown when u smile closest to the nose. Have been pushed outwards to such a degree that, when i smile you cannot see many teeth and definitely not my top set of teeth. This is highly embarrassing for me, are there anyways i can push them back in??. I presume this was caused due to the fact that, i used to suck my thumb throughout my child hood. Causing my teeth to be pushed outwards. What can i use to push my teeth inwards? can i use removable retainers? rather than fixed braces??