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Your link doesn't disprove the need for cleaning, just that the studies examined were generally of poor quality.

Anecdotally - I have issues with receding gums - and teeth cleaning (even though I hate it and only go once every 3 years or so) seems to be one way to quickly alleviate it for a while. For me there appears to be some benefit at least to going regularly if one does have dental problems.

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Generally that's what studies do; you can't really disprove things like naturopathy or chiropractic care, all you can do is show that they do not have any evidence to support them.

I can't speak to your particular medical condition, but I can say I know people who say the exact same thing about acupuncture; they absolutely swear that it helps treat their pain and they are sincere in their belief just as I am sure you are sincere about your belief.

Thankfully science is not about sincerity in one's own beliefs.

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