Yes, cavities are one of the reasons for bad breath. The bacteria responsible for decay releases gases that are odorous. Moreover, cavities are holes in the teeth where food and bacteria become stuck. As a result, the area becomes a source of bad breath.
Cavities and Bad Breath: What’s the Real Link?
Exactly, cavities can lead to bad breath, however, it is not the decay itself that produces the bad smell. The major contributors are the bacteria that invade and multiply in the darkness of your cavity.
- The bacteria in your oral cavity thrive on the sugars and starches that you consume.
- The bacteria deposit themselves on the teeth and form plaque, which produces the acids that corrode the enamel of the teeth.
- After a cavity is formed, it becomes the ideal place for bacteria and tiny food particles to hide in the darkness of the cavity.
- The bacteria that are trapped feed on the leftovers and thus they release gases that have a bad odor (most of the time a sulfur or a rotten egg smell).
Is Bad Breath Always From Cavities?
Not necessarily.
Apart from that, there are other causes such as:
- Gum diseases (gingivitis or periodontitis)
- Dry mouth (usually worse in winter or after travelling in London)
- Smoking, strong foods, or crash diets
- Diseases like reflux, tonsillitis, or even diabetes
What Does a Cavity Smell Like?
Most of the time, people associate the bad breath that comes from the cavity with:
- Rotten or “off” eggs (sulphuric)
- Sickly-sweet or decayed
- Much stronger than simple “morning breath”
Bad Breath & Cavities – What To Do Now
Self-Check Steps –
- Look: Do you see white, brown, or black spots on your teeth? Are there holes that can be seen?
- Feel: Is it consistently difficult to eat or drink something very hot, cold, or sweet without feeling pain?
- Smell/Taste: Do you have bad breath or a taste that even if you brush your teeth, it still remains?
If YES, then it’s definitely time to take action!
Prevention and Solutions
1. Brush the teeth as well as the tongue twice a day
2. Floss and use interdental brushes daily
3. Drink plenty of water—if your mouth is dry, the smell will get worse
4. Avoid/cut down on sugary food and drinks
5. Regular check-ups
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