I first noticed an adult dog a few years ago with a front tooth missing. The dog had all its adult teeth in previously when shown and pointed. One tooth was not that big of a deal according to my handler- we will just not show the tooth fairy. Then I noticed my retired girl was missign several even though gums were healthy- age? Now I am noticing 2 and 3 yr olds with missing front teeth- and they did get all thier adult choppers in (I check regularly as I will scrape off plaque that eating raw does not get when I groom). It is always front teeth (inscisors)- not canines or molars lost. I noticed today my one show boy- only has 2 top inscisors at 2 yrs old. No way to cover that in the ring when trying to show his perfect bite! I am wordering if feeding raw has something to with it or is this something genetic or are they losing them to fence fighting when they hit that magical and annoying age of male hormone surge? I know this boy has been known to fence fight-could that be it?