Can stopping smoking cause bacteria in your mouth to cause gum problems?

The opposite is true. Smoking causes: reduces blood flow to your gums and promote bacteria. The best thing you can do for your teeth, mouth and health is to quit using tobacco.
No. Stopping smoking will help prevent periodontitis as well as a host of other medical problems, including emphysema and cancer.
The opposite! Smoking is a factor causing periodontal disease and gum disease. Stopping the habit will help you get rid of the bacteria causing gum problems.