The Hidden Causes of Bad Breath (And What You Can Do About It!)

Dr. Rafia Piracha
March 10, 2025

Bad breath, also known as halitosis, can be embarrassing, but it’s often a sign of an underlying issue. While brushing and flossing help, bad breath can persist for several reasons beyond poor oral hygiene.

Knowing the reasons behind halitosis can help you determine the most effective way to combat it. Our team at Dental Works shares the tips you need below.

Unusual Causes of Bad Breath

Surprisingly, bad breath isn’t just caused by food or skipping brushing. Some hidden culprits include:

Tonsil Stones – These small, calcified deposits in your tonsils trap bacteria, causing a foul odor.
Postnasal Drip – Mucus buildup from allergies or sinus infections can lead to smelly breath.
Digestive Issues – Acid reflux or an unbalanced gut can cause an unpleasant smell from your stomach.
Medication Side Effects – Some medications cause dry mouth, reducing saliva that naturally cleanses bacteria.

Mouth Breathing – Breathing through your mouth (especially while sleeping) dries out your mouth and promotes odor.

How to Tackle Bad Breath Based on the Cause

When you have an idea about the reason behind your bad breath, you can implement an effective strategy to get rid of it.

For dry mouth: Stay hydrated, chew sugar-free gum, and use mouth rinses designed to boost saliva.
For tonsil stones: Gargle with salt water, or see a dentist if they persist.
For postnasal drip: Use a saline spray or humidifier to clear mucus buildup.
For digestive issues: Eat more probiotics, reduce acidic foods, and avoid late-night snacking.
For general oral health: Schedule professional cleanings to remove deep plaque and tartar buildup.

Tackle Bad Breath Issues at Dental Works in Cornwall

If you’re struggling with persistent bad breath, our dentist in Oakville can identify the cause and provide the recommended treatment.
Oftentimes, a deep dental cleaning or addressing dying teeth can help your breath and oral health. Count on Dental Works for complete dental care in Oakville, including bad breath treatment. Schedule your appointment today.