The phrase "tooth surface" refers to the outer part of a tooth that is in contact with the mouth. It includes the top part that you see when you smile, as well as the sides and the area where the tooth meets the gum. Full definition
Because as owners we do not regularly brush our dog or cat's teeth, plaque, which is a film of bacteria, builds up on teeth surfaces. (uptownvet.com)
It can help maintain tissue integrity, stimulate saliva production, alter plaque bacteria metabolism, and provide mechanical cleansing of tooth surfaces. (cedarbayouanimalclinic.com)
Remember, creating a smooth clean tooth surface makes it more difficult for tartar and plaque to build up! (catclinicofjc.com)