i was giving bentley the once over after i had trimmed his ears and noticed that one of his fang teeth is discoloured unlike the rest of his teeth which are white. this one alone is yellow and looks to have a chip on it should i be alarmed??? will he possibly need it out??? i have got tooth paste and have been brushing his tooth every day and it doesnt seem to be getting any better/worse..... i have never had a dog that has had this problem. he's not even 2 yet....

HELP xx