When can gum recession return to normal after teeth cleaning?

Gum recession after teeth cleaning is generally difficult to reverse, so the specific recovery time varies and cannot be generalized. This gum recession is not caused by the cleaning itself, but rather results from pre-existing alveolar bone resorption. As the alveolar bone is absorbed, the gums recede accordingly. However, the exposed gum surfaces were previously covered by large amounts of calculus, which masked the gaps between teeth, making the recession less noticeable and preventing obvious exposure of the tooth roots.