Porphyromonas gingivalis in Alzheimer’s disease brains: Evidence for causation

Does regularly using mouthwash, specifically hydrogen-peroxide as a wash, kill this bacteria?

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Here is an NIH article on that idea... although I am not sure of its conclusions as of yet - but some interesting language regarding this interaction:

https://www.ncbi.nlm.nih.gov/pubmed/22745271