Maureen

In regard to dispensing with colonies of bacteria that cause breath odors, mechanical cleansing of your mouth is typically more effective than the use of chemical agents (rinses, toothpaste, lozenges, etc...).

Chemical agents can be used to enhance the cleaning process. We explain that point on our effective mouthwashes page (which discusses toothpastes too). But people usually place too much faith/reliance on them.

In your case, biggest expected culprit locations for smelly bacterial accumulation would be your dentures and tongue.

We have a page that explains effective tongue cleaning. (Brushing/scraping is the most important part.)

We also describe self-tests that you can use to determine if those locations (tongue, dentures) continue to be the source of odors and therefore need more attention.

While underneath-the-gum-line bacterial accumulations are an odor source for many, we'd expect that you don't have but a few "posts." And if they were a major harbor for bacteria it seems most likely that they would also have ongoing gum problems (which doesn't seem to be the case because your dentist doesn't seem overly concerned about them).

If the "posts" are dental implants, a toothpaste's antibacterial properties (if it has any) might provide some benefit. (However if bacterial accumulation around them is a problem, usually a prescription antibacterial rinse is used.) In the case of posts placed in the roots of natural teeth, they might also receive some protection from a toothpaste's fluoride content.

For other areas of the mouth (like gum tissue expanses which typically don't harbor large numbers of bacteria and therefore contribute less to a person's breath problems), cleaning as we describe on our pages (cloth, soft toothbrush) should be sufficient. But yes, if the use of a chemical agent is desired, as we describe on our mouthwashes page linked to above, that's a reasonable addition.

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