Using listerine and other forms of chemical mouthwash has many benefits, but it is not entirely without downsides. Recent studies have shown that while mouthwash is the most effective way to kill bacteria, as the liquid gets everywhere and is very corrosive, it also dries the mouth out, harms the salivary glands, and is an irritant, which means that it is one of the many, many causes of oral cancer.

Perhaps the most frequent cause of visits to the dentist that are not emergency visits are ones where bad breath is concerned. You cannot ignore the fact that your mouth stinks, and most people are not going to ignore for you, either. It is a grave source of stress in social situations, not to mention that it can poison your private relationships as well. It is a serious problems, and it is more often than not a sign of deeper problems.
Removable dentures do not decay, they don’t hurt from not being brushed, look relatively the same, and have no nerve endings in them to send signals to the brain. But this does not mean that they can be neglected.