Cavities Under Dental Bridges: Causes, Prevention, and Care

Yes, cavities can develop under dental bridges. The supporting (abutment) teeth remain susceptible to decay, especially at the margins where the bridge meets the tooth.

Why Decay Occurs Under Bridges

• Plaque Accumulation: Hard-to-clean areas under the pontic and around margins harbor bacteria.
• Marginal Gaps: Imperfect seal allows bacterial ingress.
• Compromised Enamel: Abutment teeth may have pre-existing defects or wear.
• Inadequate Hygiene: Difficulty flossing leads to neglected cleaning.

Prevention Strategies

• Use floss threaders, interdental brushes, or water flossers to clean under the pontic.
• Brush twice daily with fluoride toothpaste.
• Regular professional cleanings and check-ups (every 6 months).
• Fluoride treatments or prescription toothpaste for high-risk patients.

Early detection via dental exams and radiographs prevents extensive damage and bridge failure.