Hi
By the books it's 6 months . But in case you are maintaining your teeth well , as in brushing twice , regular flossing, timely dental check up , then you can even extend it to an year.
3 months is too short , usually required in people with smoking or tobacco chewing habit.
Sensitivity after cleaning is for a temporary phase
Regards
Answered2016-11-08 04:53:34
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