Glossary Q&A

How long must a California dental office keep patient records when the office closes?

Adults generally require at least 7 years after discharge. Unemancipated-minor records must be kept at least 1 year after age 18 and never less than 7 years.

Last verified June 9, 2026

Reviewed by Mahtab Mansour, DDS on April 25, 2026 · re-verification in progress

Direct answer

Adult records must be preserved for at least 7 years after discharge.
Unemancipated-minor records must be preserved for at least 1 year after age 18 and never less than 7 years.
Office closure does not erase the retention floor or the owner's responsibility to manage access.

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Common trap

Do not answer from office habit, carrier advice, or a shorter internal policy. The statutory retention floor controls.

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Parent guide

What California duties fall on the dental practice owner?

Use this guide when a question tests what the dentist or owner must set up, maintain, display, report, or supervise at the office level.

Primary sources

A10 HSC section 123145 record preservation on closure
B4 Board office-closure practical guidance

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