wisdom tooth taken out?

hey everyone im just wanting tips.. my wisdom tooth's are trying to come out I remember a month ago I went to the dentist and he showed me my x ray that my wisdom tooth's are growing pointing to my back teeths which is bad cause if I keep my wisdom tooth's they was hitting my back teeth and I could lose my back teeths. i feel one of my lower wisdom tooth came out not the whole thing and not half of it just a little piece. should I take all of my wisdom teeths out even if they haven't came out or havent came out fully?