If your dental practice closes, is sold, or your dentist retires, your clinical records do not disappear: they are legally required to be kept for a minimum retention period, and you have a right to request a copy regardless of who now holds the file. The practice itself is a business that can change hands, but the record of your treatment is treated as a continuing legal document, not something that belongs to whoever happens to be behind the desk that year.
This is a different question to the one covered in our guide to changing dentists and transferring records and x-rays, which walks through what happens when you personally decide to move to a new dentist and ask for your file to be sent across. This article covers the reverse trigger: the practice closes, is sold to a new owner, or your dentist retires, and you have not necessarily done anything yourself yet.
Key takeaways
- Dental records must be kept for a minimum retention period set by state health records law, even after a practice closes.
- When a practice is sold, patient records typically transfer to the new owner as part of the sale.
- When a practice closes without a buyer, the outgoing dentist is expected to arrange a nominated custodian to hold the records.
- You have a right to request access to your own file at any time, regardless of who currently holds it.
- The Dental Board of Australia expects practitioners to plan for continuity of patient care when they leave or close a practice.
- If you cannot locate your old practice, your state health department, the Australian Dental Association, or the practice's professional indemnity insurer are reasonable places to start asking.
Why dental records outlive the business
A dental record is a legal document that protects both the patient and the practitioner. It shows what was assessed, what was discussed, what treatment was provided, and what was recommended. Because of that, health records legislation in each state sets minimum periods for how long a record must be kept, and those obligations do not end just because the practice stops trading.
In New South Wales, the Health Records and Information Privacy Act sets the framework for how health information, including dental records, must be handled, stored, and eventually disposed of. The exact retention period can depend on factors such as whether the patient was a minor at the time of treatment, so if you need to confirm a specific timeframe for your own situation, checking directly with NSW Health or the practice's record custodian is the reliable path, rather than relying on a general rule of thumb.
What happens when a practice is sold
When a dental practice is sold as a going concern, patient records are usually treated as part of the business being transferred, along with equipment and goodwill. The new owner takes on responsibility for storing those records securely and making them available to patients who request them.
Patients are not usually required to do anything when this happens, though many practices choose to send a letter or email letting patients know ownership has changed and confirming who to contact about their file. If you were not notified and are unsure whether your old practice was sold, contacting the practice's phone number or website is a reasonable first step, since sold practices often keep operating under a similar name at the same address.

What happens when a practice closes without a sale
When a dentist retires or a practice closes down entirely, rather than being sold, the outgoing practitioner is expected to arrange for records to be transferred to a nominated custodian. This might be another local practice, a dedicated records storage service, or in some cases the relevant state health authority.
The Dental Board of Australia's guidance on continuity of care expects practitioners to plan for this in advance, so patients are not left without access to their history. In practice, this can mean the outgoing dentist notifies patients directly about where records have gone, or leaves a forwarding notice at the old address and with the relevant professional bodies.
If you cannot find where your records went
If a practice has closed and you cannot locate a forwarding notice, a few starting points tend to work. Your state dental board or the Australian Dental Association can sometimes point you toward a nominated custodian. Your health fund, if you claimed dental treatment through it, may hold a treatment history even if it does not hold clinical notes or x-rays. And a new dentist can often request records on your behalf once you tell them where you were previously treated.
Your right to access your own file
Regardless of who owns the practice, or whether it still exists, you have a right under privacy and health records law to request access to your own dental record. This includes clinical notes, treatment plans, and x-rays. A request can usually be made in writing, and the custodian holding the records is expected to respond within a reasonable timeframe, though exact response windows vary by state, so it is worth confirming directly with whoever holds the file.
There can be a reasonable administrative fee for retrieving and copying a large file, but access itself cannot be refused simply because the practice has changed hands or closed.
Practice ownership change compared with a simple closure
| Scenario | Who holds your records | What you may need to do |
|---|---|---|
| Practice sold to a new owner | New owner, as part of the business sale | Usually nothing, unless you want to change practices anyway |
| Practice closes, dentist retires with a nominated custodian | The nominated custodian named by the outgoing dentist | Confirm the custodian's contact details if not already notified |
| Practice closes with no clear custodian | Uncertain, may sit with a state authority or professional body | Contact the state dental board, the Australian Dental Association, or your health fund to trace the file |
| You choose to move dentists yourself | Your existing dentist, until transferred | Request a transfer directly, a different process to a closure |

What this means for your ongoing care
A new dentist relies heavily on your previous records to avoid repeating x-rays unnecessarily and to understand what has already been tried, particularly for restorative work. If you are moving to a new practice because your old one closed, bringing whatever information you do have, even a rough summary of previous treatment, helps your new dentist build an accurate treatment plan faster. If your treatment involved lab-made work such as a crown or denture, understanding why dental lab work gets remade can also help explain any follow-up your new dentist suggests. If your care during the transition involves a dental assistant helping coordinate paperwork, it is worth knowing what a dental assistant can and cannot do in that process.
Frequently asked questions
Do I need to do anything if my dental practice is sold to a new owner?
Usually not. Records typically transfer with the sale, and the new owner takes on responsibility for storing and providing access to them. You can still request a copy or transfer at any time.
What happens to my x-rays if my dentist retires?
The retiring dentist is expected to arrange a nominated custodian to hold patient records, including x-rays, so they remain accessible. You can request a copy from that custodian once identified.
How long are dental records kept in Australia?
Minimum retention periods are set by state health records legislation and can vary depending on factors such as the patient's age at the time of treatment. Rather than relying on a general figure, confirming the exact period with the relevant state health department or the record custodian is the reliable approach.
Can a new practice owner refuse to give me my old records?
No. Access to your own health information cannot be refused simply because ownership has changed, though a reasonable fee may apply for retrieving and copying a large file.
What if I cannot find out where my old practice's records went?
Contacting your state dental board, the Australian Dental Association, or your health fund are reasonable starting points, as any of these may be able to point you toward a nominated custodian.
Is it different if I decide to leave my dentist myself, rather than the practice closing?
Yes. That is a patient-initiated transfer rather than a closure, and it follows a more direct request-and-transfer process, covered separately in our guide to changing dentists and transferring records.
If you are settling in with a new dental practice after a closure, sale, or a simple change of mind, the team at Lumi Dental offers a new-patient appointment to properly assess your history and current needs, with current offers listed on the current deals page. This article is general information and is not a substitute for advice from the relevant state health authority about your specific records.




