I wore Braces for a year to fix an overbite and now they are off. My bottom teeth are now off centered. WHAT DO I DO ABOUT THIS?

i informed my doctor about it and he said he cant fix it. i have a tooth missing so maybe they shifted to one side and are now off centered. it has changed the shape of my face, i feel like my chin is tilted to one side. i feel like i should stop wearing my bottom retainers but i am afraid i will have an overbite HOW CAN I FIX IT?

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