Dogs with scissors bites, and big mouths, have a much easier time «self - cleaning». (pethelpful.com)
However, the top surface of the teeth in the upper jaw must actually touch the under surface of the teeth in the lower jaw for it to be called a reverse scissors bite. (abra1st.com)
Many breeds, and mixed breed dogs have some degree of scissor bite, with the top front teeth fitting neatly in front of the bottom front teeth. (raisingrascal.com)