Mouth related query. Will be very much?

Sir/mam right now I am 21 years old and few months ago aprrox 5-6 months ago I had a phobia of looking my inner second last teeth by somewhat tightly stretching the corners of lips or I can say I have to apply somewhat force to stretch my lips tightly so as to show my inner second last teeth to my mother as I said it's just because of my mental illness of critising my teeth for any reason but now I am cured after taking consultation from respective doctors . So sir/mam i used to stretch my lip 6-7 times a day and all it gone for 2-3 months in between only few days were of not doing this activity but most of the days were of stretching my lips tightly to show my inner second last teeth to my mother so my query is does it cause permanent widening of mouth I have given u everything about my past pls help me sir/mam i will be very much thankful to u ...pls answer me exactly what happens or what not...??