Common Causes of Chronic Bad Breath

• Gum disease — the most common dental cause
• Poor oral hygiene — bacteria on the tongue, teeth, and gums
• Dry mouth (xerostomia) — saliva cleanses the mouth; less saliva means more bacteria
• Cavities — bacteria thrive in decayed teeth
• Dental abscesses or infections
• Poorly fitting dentures or dental appliances
• Tonsil stones
• Systemic conditions (diabetes, kidney disease, liver disease)
• Certain medications

How We Diagnose and Treat Bad Breath

We perform a comprehensive oral exam to identify the source of the odor. We check for gum disease, cavities, infections, and other dental causes. Treatment depends on the cause — it may include a professional cleaning, gum disease treatment, cavity treatment, or improved home care. We will also recommend products and techniques to help control bad breath at home.

Home Care Tips for Bad Breath

• Brush teeth and tongue twice daily
• Floss daily to remove food and bacteria between teeth
• Use an antiseptic mouthwash
• Stay hydrated — drink plenty of water
• Chew sugar-free gum to stimulate saliva
• Avoid tobacco products
• See your dentist regularly

When to See a Doctor

If we rule out dental causes, we may refer you to your physician. Systemic conditions like diabetes, kidney disease, and liver disease can cause distinctive breath odors that require medical treatment.