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Gum recession doesn't mean that the tooth will have to be pulled (and if you are going to the dentist regularly he/she would have already discussed if the tooth was unhealthy periodontally (gum health) and maybe had a questionable or poor prognosis. Teeth can have a lot of recession on one surface, but as along as the bone around the tooth remains adequate and you don't have any trouble with keeping it clean brushing/flossing it can be like that for long time maybe even indefinitely. If you could submit a picture of the area I could give you more accurate outlook based soley on recession. The real determinant of needing to remove a tooth that is asymptomatic would be to test its mobility (how much its wiggles). If its feeling firm or moves very minimally, you have more affirmation that the tooth can stay. Hopefully that helps.