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How long does a tooth filling last ?
A properly placed composite resin filling typically lasts between 5 to 7 years, while older metal amalgam fillings can last over a decade. However, a filling's true lifespan depends heavily on your daily oral hygiene, biting forces, and the dentist's strict moisture control during the initial placement procedure.
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Written by Dr Avinash Bamane (A-18814) · Checked by Dr Rashmi Bamane (A-22726) · Last reviewed 5 September 2026