Brushing morning and night with fluoride toothpaste, plus cleaning between your teeth, usually makes a mouthwash unnecessary. A rinse is an add-on, and each type has its own job.
- A rinse never replaces brushing and cleaning between your teeth.
- Antibacterial rinses suit short, planned periods.
- Ask your dentist which type and for how long.
Which rinse does which job?
- Antibacterial (chlorhexidine): reduces plaque, for a set period your dentist chooses.
- Fluoride: may suit people at higher risk of decay.
- Cosmetic: freshens breath briefly. It doesn’t treat the cause of bad breath.
What does the research say about chlorhexidine?
A Cochrane review found that chlorhexidine rinse, used alongside normal cleaning, cut plaque markedly over 4 to 6 weeks and over 6 months. The drop in gum inflammation in people with mild gingivitis wasn’t judged clinically relevant (James et al., 2017).
Teeth staining was a clear drawback. The studies also reported temporary taste changes and more calculus (James et al., 2017). That’s why a dentist may suggest it for a set time rather than every day for good.
How to use a rinse well
Spit out your toothpaste after brushing, but don’t rinse it away, so a layer of fluoride stays on your teeth (healthdirect, tooth decay). A rinse straight afterwards would wash it off, so use it at another time of day.
If you’re using a rinse to cover bad breath, have the cause checked instead. Read why you get bad breath (healthdirect, bad breath).
When we suggest one
We may suggest a rinse after some dental procedures, while gums recover, or when your decay risk is higher. It’s a conversation about your mouth, and not a product we push.
Sources
Where To Read Next
Want more on this topic? This page goes further, and it lists questions to bring to your visit.
Nutrition & Prevention Guide