Mouthwash: 4 Benefits for Oral Health

Mouthwash is a useful add-on to brushing and flossing — it can reduce plaque, freshen breath, and, with fluoride, help prevent decay. It doesn't replace brushing and flossing, which reach the surfaces and gaps a rinse can't. Here's what it does.

Why use mouthwash

Used alongside brushing and flossing, mouthwash helps clean the whole mouth and tackle the bacteria behind bad breath and plaque. Think of it as an extra layer, not a substitute — it won't clean between the teeth the way floss does.

Four benefits

1. Reduces plaque

An antiseptic mouthwash helps reduce plaque and bacteria. This is useful for people in braces, who are prone to white-spot lesions when plaque builds up around the brackets.

2. Freshens breath

An antiseptic or peppermint mouthwash kills some of the bacteria that cause bad breath, leaving the mouth fresher.

3. Helps prevent decay

A fluoride mouthwash supports enamel remineralisation, helping prevent cavities — useful for adults and, with supervision, older children.

4. Reduces gingivitis

Antiseptic mouthwashes help reduce gum inflammation (gingivitis) and the bacteria that drive it.

Getting the most from it

Use mouthwash alongside brushing, flossing, and regular check-ups — not instead of them. If you're unsure which type suits you, ask at your next visit.