The Breathcure Journal Topic

Bad Breath

Persistent bad breath almost always has a treatable cause — and it usually isn't what people assume. The articles in this tag explain the real biology behind chronic bad breath, why mouthwash and mints rarely solve it, and what a halitosis-focused dental exam actually looks like. Dr. Teah Nguyen has spent two decades treating breath issues at the Center for Breath Treatment in Berkeley; these posts distil that clinical experience into practical guidance you can apply at home or bring to your next dental visit.

14 articles updated Jun 2026

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Dr. Teah Nguyen, DDS

Dr. Teah Nguyen, DDS

20+ years in clinical dentistry · Berkeley, CA

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Last updated
Reviewed by
Dr. Teah Nguyen, DDS
Related services
Bad Breath Treatment , Dry Mouth

Articles in this topic

Oral Probiotics for Bad Breath: What the Research Shows

Oral Probiotics for Bad Breath: What the Research Shows

Specific oral probiotic strains reduce volatile sulfur compounds in clinical trials — but most commercial products miss therapeutic doses. An evidence-led guide to what works, what to ignore on the label, and where probiotics plateau.

What Causes Dry Mouth? A Guide to Xerostomia

What Causes Dry Mouth? A Guide to Xerostomia

Dry mouth is a diagnosable condition with identifiable causes — not just dehydration. Medications, mouth breathing, autoimmune disease, stress, and cancer therapy all play distinct roles. A clinical guide to the why, the consequences, and what actually restores saliva.

How to Get Rid of Halitosis Permanently

How to Get Rid of Halitosis Permanently

Chronic bad breath rarely responds to mouthwash and tongue scrapers alone. Learn the five root causes of halitosis — and the diagnosis-first treatment path that actually clears it for good.

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