Are you retarded? One reason they don't HAVE to brush their teeth is because the spaces between them are so large plaque does not have as great an opportunity to build up. Furthermore their diets are so different from ours it probably isn't as necessary. HOWEVER they still sell milk bones for dogs to help clean their teeth.
Grow up and take a high school science course and stop being an asshole.
no
the reason dogs are given this tooth cleaners is because as usual human being were fed that this is good for the dog while in reality there is nothing more far from the truth! dogs actually can die and did die from this garbage,,chinese garbage to be exact! so no dont ever give your dog this pieace of shit teeth cleaners no matter how much you think he will smell better,,some people asre just cleaning freaks it is known phenomenon and start with the teeth thing and ofcourse via behavior classess 101 given by professor wady

....you will learn that those cleaning freaks dont stop with their dogs and end up being ocd about everything in their life ,,you will never be able to go in their house or on their carpet unless you take shoes off! you wont be able to have sex with those females unless you took shower before,,,this thing is more common among the female humans rather than the male humans
now the diets of animals is very similar to diet of lean bodybuilder,,,bunch of beeeeeeeef bunch of chikeeeeeeeennnnnnnn bunch of meattttttttttttttttttttt
tt,,,bunch of bananas and bunch of leafs,,and that my friend is basic food on planet earth ,,the diff is that those animals eat it raw and have millions and trillions more bacteria built in the food and in their teeth ...plaqe as you describe it

...so their teeth should be brushed acording to this fact 10 times a day yet in reality no brushing is needed and human too dont need any brushing of teeth ,,not even once! humans do it so they smell ok among their acquaintances and not stink thats basically it!
both type of animals can die from infections if there is cavity in the tooth that is deep enough to get in to the blood with out being taken care by doc but! as you would learn with time if you had the courage...the human body is a wonderful machine and so is the less advanced animal body and this body of both will heal itself and either get rid of the sick tooth by itself via seperastion and break ,,or will tell you via severe pain that its time to go to doctor ,,severe continuious pain that is,, because this will lead to infection and with infection you dont play around
understood? good