Why do I have persistent bad breath?
In most cases persistent bad breath (halitosis) is produced in the mouth, by bacteria breaking down protein and releasing volatile sulphur compounds. The usual sources are the back of the tongue, deep gum pockets, food traps around old restorations or a partly erupted wisdom tooth, and untreated decay. A smaller share is non-dental — sinus disease, reflux, dry mouth from medication, or uncontrolled diabetes — which is why breath that persists after proper dental treatment deserves a medical review.
What bad breath usually turns out to be
- Bacterial coating on the posterior tongue
- Periodontal pockets and bleeding gums
- Untreated decay, food traps and overhanging restorations
- Dry mouth (xerostomia), often medication-related
- Partly erupted wisdom teeth trapping debris
- Sinus or throat infection, reflux, or metabolic causes
What to do before you are seen
- Clean between the teeth daily and clean the back of the tongue
- Keep hydrated; review any medication that dries the mouth with your doctor
- Book a scaling and a gum assessment before trying to mask the odour
- Have any partly erupted or food-trapping tooth assessed
This is general guidance and does not replace an examination. Only a clinical examination with radiographs can identify which tooth or tissue is causing your symptom.
When to see us
- Gums that bleed without provocation, or bleeding that has become heavier
- Teeth that feel loose, are drifting, or gaps that are opening up
- Persistent bad breath or taste, gum abscesses, or pus on pressing the gum
Detailed guides on this symptom
Chronic Bad Breath Caused by Gum Infection
Chronic bad breath, or halitosis, is frequently driven by underlying gum disease. Subgingival bacteria produce volatile sulphur compounds within periodontal pockets. Effective resolution requires professional periodontal debridement, targeted biofilm disruption, and meticulous daily interdental hygiene rather than cosmetic masking.
Chronic Dry Mouth Causes, Diagnosis, and Daily Relief
Chronic dry mouth, or xerostomia, arises from reduced saliva production due to medications, systemic diseases, or head and neck therapies. This clinical guide explores chronic dry mouth causes, diagnostic investigations, staging scales, evidence-based therapies, and daily preventive routines.
Chronic Dry Mouth: Causes, Risks, and Daily Management
Chronic dry mouth, or xerostomia, occurs when salivary glands produce insufficient saliva to protect oral tissues. This clinical guide details the causes, diagnostic staging, oral health risks, and daily evidence-based management strategies to preserve teeth and gums.
Treating Dry Mouth and Salivary Gland Radiation Damage
Radiotherapy for head and neck cancer frequently causes irreversible salivary gland damage, resulting in severe dry mouth (xerostomia). This clinical guide outlines salivary anatomy, radiation pathophysiology, diagnostic sialometry, preventive fluoride protocols, sialogogue therapies, and long-term oral complication management.
Bad Breath (Halitosis): Causes and Effective Solutions
Persistent bad breath can affect confidence and social life. Understand the true causes of halitosis, beyond just what you eat, and learn practical, evidence-based ways to address it.
Medication-Induced Dry Mouth: Solutions and Saliva Substitutes
Medication-induced dry mouth, or drug-related xerostomia, is a common side effect of hundreds of systemic pharmaceuticals. This guide outlines salivary anatomy, diagnostic evaluation, high-fluoride preventive protocols, saliva substitutes, and practical long-term management to protect teeth and oral tissues.
Stress and Oral Health
Understand how chronic stress impacts your oral health, from jaw clenching to gum disease, and discover ways to manage these effects effectively.
Alcohol and Oral Health
Understand the impact of regular alcohol consumption on your oral health, including the increased risk of gum disease and oral cancer.
Denture Care and Hygiene
Proper denture care and daily hygiene are essential to maintain the health of your oral tissues, prevent bad breath, and ensure the long-term integrity of your appliance.
Dry Mouth from Medication
Learn how certain medications can cause dry mouth, and discover effective ways to protect your teeth and manage this common, uncomfortable side effect.
Dry Mouth: Causes and Care
Dry mouth can be uncomfortable and damaging to your teeth. Discover the common causes and learn simple ways to maintain moisture for better oral health every day.
Orthodontics and Gum Disease
Safely align your teeth while managing gum disease at Dr. Amit Sharma Super Speciality Dental Hospital, Jaipur. Our specialist care protects your gums and your long-term oral health.