This is what I found on a dream dictionary
Turtle
Dreaming of a turtle suggests that you need to take some chances in order to get ahead in life. The opportunities for advancement are opened to you, but you need to take the next step.
Brushing Your Teeth
To brush your teeth, foretells that some great struggle will be demanded of you in order to preserve your fortune. If you see a friend brushing their teeth, it may be a warning that your friend has been talking against you. Or, you might be feeling paranoid about how good a friend they really are to you.
Dog
Pay attention to dreams about dogs, as they often bring important messages. Dog dreams that are positive mean that the dreamer is lucky in friendship. A threatening dog signifies discomfort with large social groups. Also see "Barking", "Puppy" and "Rabies"