Burning Mouth Syndrome

Overview

What is Burning Mouth Syndrome?

Burning mouth syndrome (BMS) is a chronic condition characterized by a burning sensation in the oral mucosa without any identifiable cause or visible abnormalities. The pain can affect the tongue, lips, palate, gums, or entire mouth.

• Affects approximately 0.7-5% of the population
• Most common in postmenopausal women
• Chronic condition that may last months to years
• No visible oral abnormalities present
• Pain may worsen throughout the day

Overview of the Condition

BMS is classified as primary (idiopathic, often neuropathic) or secondary (due to identifiable causes). Primary BMS is thought to involve dysfunction of sensory nerve fibers. The condition significantly impacts quality of life, including sleep, eating, and psychological well-being.

References

• NCBI - Burning Mouth Syndrome
• Mayo Clinic - Burning Mouth Syndrome

Symptoms and Causes

Symptoms

• Burning, scalding, or tingling sensation
• Pain typically worsens through the day
• May be present every day for months
• Dry mouth sensation (xerostomia)
• Altered taste (metallic, bitter)
• Numbness or tingling
• Pain may improve with eating or drinking
• Often affects tongue tip and anterior two-thirds

Causes

• Primary BMS: neuropathic dysfunction (unknown origin)
• Hormonal changes (menopause)
• Nutritional deficiencies (B vitamins, iron, zinc)
• Dry mouth from medications or conditions
• Oral candidiasis
• Allergies to dental materials or foods
• Gastroesophageal reflux disease (GERD)
• Medications causing dry mouth
• Psychological factors (anxiety, depression)
• Diabetes mellitus
• Thyroid disorders

Diagnosis and Treatment Options

Diagnosis

• Thorough medical and dental history
• Oral examination (typically normal)
• Blood tests (CBC, glucose, thyroid, vitamins, iron)
• Allergy testing if indicated
• Salivary flow assessment
• Psychological evaluation
• Exclusion of secondary causes

Treatment Options

• Treat underlying causes if identified (secondary BMS)
• Clonazepam (topical or systemic)
• Alpha-lipoic acid supplementation
• Cognitive behavioral therapy
• Low-dose tricyclic antidepressants
• Capsaicin rinses (desensitization)
• Gabapentin or pregabalin
• Saliva substitutes for dry mouth

Non-Surgical Care

Conservative Management

Treatment focuses on symptom management and addressing contributing factors. A multidisciplinary approach involving dentistry, neurology, and psychology often provides the best outcomes. Complete resolution is not always possible, but significant symptom improvement can be achieved.

Home Care Recommendations

1. Stay well hydrated
2. Sip water frequently
3. Avoid alcohol-containing mouthwashes
4. Avoid spicy, acidic, or hot foods
5. Chew sugar-free gum to stimulate saliva
6. Avoid tobacco and alcohol
7. Manage stress through relaxation techniques
8. Maintain good sleep hygiene

Surgical Care

When is Surgery Needed?

Surgery is not indicated for burning mouth syndrome. The condition is managed through medical therapy, behavioral interventions, and addressing underlying causes.

Anatomy and Affected Areas

Anatomy Overview

BMS is thought to involve dysfunction of the peripheral and/or central sensory pathways serving the oral cavity. Small fiber neuropathy of the oral mucosa has been demonstrated in some patients.

Affected Areas

• Tongue (tip and anterior two-thirds most common)
• Hard palate
• Lips (especially inner lip)
• Buccal mucosa
• May affect entire oral cavity
• Can extend to throat in some cases

Frequently Asked Questions

Frequently Asked Questions

QuestionAnswerIs burning mouth syndrome serious?It is not dangerous but significantly affects quality of life.Will it go away?Some cases resolve spontaneously; others are chronic but manageable.Is it all in my head?No, it is a real condition, though psychological factors can contribute.Why does eating help?Eating or drinking may temporarily distract the sensory nerves.Can stress cause burning mouth?Stress can worsen symptoms and may contribute to the condition.Is there a cure?No definitive cure exists, but treatments can significantly reduce symptoms.

Prevention Tips

Prevention Strategies

• Manage stress effectively
• Maintain adequate hydration
• Avoid oral irritants
• Ensure adequate vitamin and mineral intake
• Control underlying medical conditions
• Limit caffeine and alcohol
• Use mild oral care products

Related Conditions

Related Conditions

• Dry mouth (xerostomia)
• Oral candidiasis
• Geographic tongue
• Oral lichen planus
• Anxiety and depression
• Fibromyalgia

Additional Treatments

Refractory cases may benefit from combination therapy and specialist referral. Pain psychology and cognitive behavioral therapy can be particularly helpful. Support groups may provide additional coping strategies.