Clinical decision-support only. For use by licensed dental professionals. Not a substitute for professional judgment or a complete drug reference. Always verify with primary sources.
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Condition

Gastroesophageal reflux disease (GERD)

Gastrointestinal

Likelihood of oral impactHigh

How likely this condition is to affect the mouth.

Evidence confidenceModerate

Strength of the peer-reviewed evidence.

Oral health effects

  • Tooth erosion from stomach acid (dental erosion)

    Chronic exposure to gastric acid causes characteristic erosion, typically on the palatal surfaces of upper teeth.

    Mechanism: Intrinsic acid dissolves enamel and dentin over time.

    Clinical management: Refer for medical reflux management; advise against brushing immediately after reflux, use fluoride, and consider protective restorations for advanced wear.

  • Bad breath (halitosis)

    Halitosis has been reported as an extra-esophageal manifestation of GERD, alongside dental erosion.

    Clinical management: Rule out oral causes (tongue coating, periodontal disease) first; if oral sources are controlled, mention possible reflux to the patient and suggest discussing it with their physician.

Sources

  1. Relationship Between Laryngopharyngeal Reflux, Gastroesophageal Reflux Disease, and Dental Erosion in Adult Populations: A Systematic Review. Wang J, Zhou Y, Lei D. Digestive diseases and sciences, 2025.
  2. Updates in association of gastroesophageal reflux disease and dental erosion: systematic review. Ortiz AC, Fideles SOM, Pomini KT, et al. Expert review of gastroenterology & hepatology, 2021.
  3. Gastroesophageal reflux, dental erosion, and halitosis in epidemiological surveys: a systematic review. Marsicano JA, de Moura-Grec PG, Bonato RC, et al. European journal of gastroenterology & hepatology, 2013.