how many types of teeth are present in frog

In frog, the teeth are absent on the lower jaw while the upper jaw bears small, backwardly pointed conical teeth called maxillary teeth. Two patches of vomerine teeth one on each vomer bone are also present near the internal naris. All teeth are similar and thus known as homodont. If the teeth are broken or worn out they are easily replaced many times. Such teeth are called polyphodont.