I Have A 19 Month Old Child That Has Very

I have a 19 month old child that has very pointy, sharp bottom teeth. I was told to take her to the dentist by her pediatrician and her speech therapist. I took her to the dentist and she didn't say anything I didn't knew. I ask her about the baby teeth and she said that she had never seen anything like that before and that I should look online. I had been looking and had found nothing. I was told by the speech therapist that the shape of her teeth are a sign of a diesis. I need to know the true.