Bad breath is an unpleasant condition that occurs when exhaling. While some people may not notice their own bad breath, others can be significantly bothered by it. In some cases, those around the person suffering from this problem may also be discomforted. So, what causes bad breath and how can it be resolved? If you are curious about the answers to these questions, you’re in the right place. Today we will provide you with detailed information on this topic and answer all your questions. If you’re ready, let’s begin without further delay!
What causes bad breath?
Bad breath can be caused by habits and problems related to oral and dental health. Additionally, it may signal other health issues. Maintaining proper daily oral hygiene usually prevents this problem. Brushing teeth regularly, using dental floss, and doing mouthwash rinses are therefore very important. Failing to do these allows food residues to accumulate on the teeth. Food remnants stuck between teeth gradually build up around the gums and on the tongue, leading to an unpleasant odour in the mouth. Possible causes of bad breath include:
- Oral fungal infections
- Cavities and tooth decay
- Sinusitis
- Tonsillitis
- Stomach and intestinal diseases
- Prolonged fasting (not eating for long periods)
- Alcohol consumption
- Smoking
- Dry mouth
- Diabetes
- Kidney disorders
- Nasal and nasal tissue disorders
Which diseases can bad breath indicate?
Bad breath can be a symptom of many diseases. Temporary odours corresponding to recently eaten foods are quite normal. However, bad breath can also occur in the following conditions:
- Tooth decay
- Sinusitis
- Pharyngitis
- Respiratory tract diseases
- Digestive system diseases
- Diabetes
- Liver failure
- Kidney failure
How are conditions related to bad breath diagnosed?
The definitive solution for bad breath is to visit a quality dental clinic and get support from an experienced dentist. Depending on the source of the odour, your dentist will treat the underlying issue. If the problem is left untreated, both you and those around you may be bothered. Therefore, first the cause of the odor must be diagnosed.
If the odour stems from cavities, a dental examination and X-rays will be necessary. Diagnosing gum diseases can be done with a simple clinical exam. In necessary cases, your dentist may also request certain blood tests.
How to eliminate bad breath?
Brush properly
- Brush at least twice a day — this is the single most important step
- Brush after meals where you can
- Use an antibacterial toothpaste to reduce odour-causing bacteria
Floss daily
- A brush alone can't reach between the teeth
- Floss removes trapped food and plaque, the two main sources of odour
- Flossing matters as much as brushing, not less
Manage smoking
- Smoking is a direct cause of persistent bad breath
- If you smoke, you may need to brush after smoking as well as after meals
- Don't over-brush — brushing too often or too hard damages the gums
Clean dentures and appliances
- Clean dentures at least twice a day
- Remove them overnight
- Clean them thoroughly before putting them back in
- Ask your dentist which cleaning products suit your appliance
Keep your mouth moist
- Drink water regularly through the day
- Avoid long periods without food or fluid
- Cut back on coffee and alcohol — both dry the mouth
- Sugar-free gum stimulates saliva and helps
Watch what you eat
- Onions and garlic cause odour that lasts well beyond the meal
- Too much sugar feeds odour-causing bacteria
Stay on a routine
- Replace your toothbrush every 3–4 months
- See your dentist once or twice a year
Treatment for bad breath
The main cause of bad breath may be inadequate oral hygiene. In this case, performing thorough dental cleaning is necessary. Simple methods like using dental floss and mouthwash help maintain proper oral hygiene. Choose a fluoride-containing toothpaste. Brush your teeth at least twice a day. Doing these after meals is important to avoid subsequent bad breath.
Besides teeth, bacteria can also accumulate on the tongue. For this, special tongue-cleaning brushes are available. Cleaning bacteria from the tongue throughout the day helps ensure oral hygiene. If you have dentures, remove them at night. Remember that dentures must be thoroughly cleaned before reuse.
Drinking too little water can also lead to bad breath. Therefore, remember to frequently moisten your mouth. Quitting smoking, if possible, will also help prevent long-term bad breath. There is no single “bad breath medication” on the market. Treatment requires identifying and addressing the factors causing odor in the mouth. Thus, there is no one-size-fits-all drug. If cavities cause the odor, you must first see a dentist. Having a dental exam once or twice a year also helps prevent this problem.
When bad breath won't go away
Most bad breath clears up once oral hygiene improves. If yours doesn't, the cause is usually something that brushing cannot reach — and it's worth having it looked at rather than managing it with mints.
See a dentist if:
- The odour persists for more than two weeks despite brushing, flossing and cleaning your tongue
- Your gums bleed when you brush, or look swollen or receding
- Any tooth feels loose, or you have pain or sensitivity
- You have a denture, bridge or implant that has become uncomfortable or hard to clean
- You get a bad taste in your mouth that keeps coming back
Gum disease is the most common dental cause of persistent bad breath, and it's easy to miss in its early stages because it's often painless.
See a doctor if bad breath comes with:
- A constantly dry mouth, especially if you take regular medication
- A sore throat, blocked nose or post-nasal drip that won't clear
- Frequent heartburn or the sensation of food coming back up
- Increased thirst, frequent urination or unexplained tiredness
- Any unexplained weight loss or ongoing symptoms elsewhere in the body
Persistent bad breath is common and usually treatable — but because it can be the first noticeable sign of something else, it's better assessed than ignored.
Frequently Asked Questions About Bad Breath
In the previous sections, we covered many important points regarding bad breath. Now we will answer frequently asked questions on this topic!
How can bad breath be eliminated?
To eliminate bad breath, you can take the following measures:
- Brush your teeth at least twice a day and use dental floss.
- Clean the bacteria on your tongue with tongue scrapers.
- Use an antibacterial mouthwash.
- Visit the dentist twice a year for check-ups.
- Drink plenty of water throughout the day.
- Chew sugar-free gum to increase saliva production.
- Avoid alcohol, caffeine, and tobacco products.
- Increase consumption of fruits and vegetables.
Why does a person’s breath smell?
There are various causes of bad breath. These include prolonged fasting, tooth decay, consumption of products like caffeine, oral infections, and inadequate oral hygiene. Stomach disorders are also known to cause mouth odor.
What can be done at home for bad breath?
- Clove: Clove is among the strongest disinfectants. Consuming a certain amount helps prevent gas formation in the stomach and intestines, eliminating bad breath.
- Cinnamon: The oil in cinnamon bark has the property of eliminating bacteria in the mouth.
- Fennel tea: Fennel tea both stimulates appetite and helps eliminate bad mouth odor.
- Green tea: The polyphenols in green tea prevent formation of bad odors in the mouth.
- Mint Tea: Mint is a strong antiseptic and cleans bacteria.
- Yogurt: Regular consumption of yogurt can help reduce bad breath.
- Orange: Orange is a rich source of vitamin C, which increases saliva production. One of the main causes of bad breath is prolonged dryness in the mouth. With regular vitamin C intake, saliva production increases, helping eliminate bad breath.
How to test for bad breath at home?
You can use home breath-testing devices, but these tests are not always reliable. You can also place a bit of saliva on your wrist, wait 5–10 seconds, then smell the area to check if your breath smells.
What should we do to prevent morning breath?
To prevent this, ensure proper oral hygiene. Avoid staying hungry for long after waking up. Brush your teeth thoroughly and use dental floss. If you use dentures, clean them before wearing. Using mouthwash and chewing gum also prevents odor. Drinking water right after waking and frequently throughout the day also helps prevent mouth odor.
Which vitamin deficiency causes bad breath?
Vitamin B12 and zinc deficiencies can cause bad breath.
What causes persistent bad breath?
Long-term smoking and alcohol consumption cause bad breath. Also, upper respiratory and stomach infections can lead to persistent bad breath. Cavities and tooth holes are also among the causes of mouth odor.
Want to discuss your journey in person?
Join our priority list to get notified about upcoming 1-on-1 Q&A sessions across the UK.
