How long does it take for tartar build up on your teeth to turn colors from being on there too long

Question

I go to the dentist regularly but recently changed to a different office and they informed me that my previous dentist wasn't doing their job, because I had major tartar buildup on my teeth and had to have them scaled. She said that the tartar was on there for so long that it was turning colors. Exactly how long does it take for it to turn colors from being on there too long?

Answer 1

2 months  

Answer 2

2 .5.5. years