Bad Breath (Halitosis): Causes, Treatment and How to Prevent It
- Sachin Soni
- Jan 12
- 2 min read
Bad breath, clinically known as halitosis, is a common dental problem that affects many people at some point in their lives. While occasional bad breath is normal, persistent halitosis can be a sign of underlying oral health issues that require professional attention.

At Lady Bay Dental Care, we regularly help patients identify the cause of bad breath and provide effective, long-term solutions to restore fresh breath and confidence.
What Causes Bad Breath?
Bad breath is usually caused by bacteria in the mouth breaking down food particles and releasing unpleasant-smelling gases. Common causes of halitosis include:
Poor Oral Hygiene
Inadequate brushing and flossing allow plaque and food debris to build up on teeth and gums. This creates the ideal environment for odour-causing bacteria, leading to persistent bad breath.
Gum Disease
One of the most common causes of chronic bad breath is gum disease. Bacteria trapped beneath the gum line produce toxins that cause an unpleasant smell and taste, which cannot be masked with mouthwash alone.
Dry Mouth (Xerostomia)
Saliva naturally cleans the mouth and helps control bacteria. Dry mouth, often caused by dehydration, medications, mouth breathing or medical conditions, can significantly worsen bad breath.
Diet and Certain Foods
Foods such as garlic, onions and spicy dishes can temporarily cause bad breath. These odours are absorbed into the bloodstream and released through the lungs until fully metabolised.
Smoking and Tobacco Use
Smoking dries out the mouth, increases the risk of gum disease and leaves a lingering smell. Tobacco use is a major contributor to long-term halitosis.
Dental Problems
Tooth decay, dental infections, poorly fitting crowns or food trapped around fillings and bridges can all lead to bad breath if left untreated.
How to Get Rid of Bad Breath
Improving oral hygiene and addressing the underlying cause are key to treating bad breath effectively.
Maintain a Good Oral Hygiene Routine
Brush your teeth twice daily with fluoride toothpaste
Floss once a day to remove plaque between teeth
Clean your tongue daily to reduce bacteria build-up
Stay Hydrated
Drinking plenty of water throughout the day helps prevent dry mouth and supports saliva production.
Use an Antibacterial Mouthwash
A dentist-recommended mouthwash can help reduce bacteria, but it should be used alongside (not instead of) brushing and flossing.
Visit Your Dentist Regularly
Regular dental check-ups and professional hygiene appointments at Lady Bay Dental Care help prevent gum disease, remove plaque and identify dental problems early.
Address Lifestyle Factors
Reducing smoking and limiting foods that trigger bad breath can significantly improve oral freshness.
When Should You See a Dentist About Bad Breath?
If bad breath persists despite good oral hygiene, it’s important to book a dental appointment. Ongoing halitosis may indicate:
Gum disease
Tooth infection or decay
Dry mouth related to medication or health conditions
Early diagnosis allows for simpler and more effective treatment.
Bad Breath Treatment at Lady Bay Dental Care
At Lady Bay Dental Care, we provide comprehensive dental examinations, professional cleans and personalised advice to help treat the root cause of bad breath — not just the symptoms.
If you’re concerned about persistent bad breath or would like to improve your oral health, our friendly team is here to help.



