When should we not use denture adhesives?

Denture adhesives should not be used unless they are absolutely necessary for the security and function of the prosthesis and then not routinely if possible. A well-made prosthesis should have some stability and retention without using excess amounts of adhesive. The overuse of adhesive is a major cause of poor-fitting dentures because the old adhesive isn't cleaned out before new is applied!  Also, the adhesive itself can become contaminated with food debris and bacteria and contribute to mouth odor. When should you not use adhesive? Anytime your hygiene or health is a concern to you!

When the denture no longer fits well and excessive amounts of adhesive are necessary to "fill" and retain the denture, it is time to visit the dentist. Actually, you should have dealt with the situation earlier. Nature hates a void, and inflammation and gum overgrowth may occur to fill the space between the healthy gum and denture that no longer fits.

Also, if the denture fits well, is secure and you are able to function well with it, and without adhesive, there is no reason to use adhesive unless you feel you need it for an extra feeling of security. In this case you would use only the minimum amount as directed on the product.