My teeth are very small and straight why might have caused them to be so straight?

People say i have baby teeth but all my teeth are permanent. I have never sucked a passie and Ive had two permanent teeth pulled. Why are they so small.
Answer:
My son has small teeth also (he is an adult) Genetics my dear. That is the best answer I can give you.

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are your parents teeth the same? its the chromosones that decide the actual shape of teeth

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