Lost Filling — What To Do When a Filling Falls Out
Losing a filling is one of the more common reasons people contact a dentist between regular visits. It is usually not a medical emergency, but it can leave a tooth sensitive, sharp-edged, and at risk of further damage. Our team at Sandgate Family Dental can usually replace a lost filling promptly so the tooth is protected again.
If a filling has just come out, see the practical steps below and book an appointment online. We see patients across the northern Brisbane area.
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What you may notice
The first sign is often a sudden change in how the tooth feels rather than pain. Common symptoms include:
Sometimes a filling fails without falling out completely. You may simply notice new sensitivity or a discoloured line around an old filling — both are worth getting checked.
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Why fillings come out
Fillings are durable, but they are not permanent. Several factors can cause one to come loose over time.
Decay underneath
New decay can develop along the edge of an older filling, undermining its support. This is one of the most common reasons we see lost fillings.
Wear and tear
Years of chewing, grinding, and temperature changes gradually fatigue the bond between filling and tooth. Larger or older fillings are more vulnerable. Our page on replacing old fillings explores this in more detail.
Biting on something hard
A nut, ice cube, or unexpected piece of bone can dislodge a filling in an instant.
Grinding and clenching
Sustained pressure on a filled tooth can flex the restoration enough to break the seal. A custom nightguard can help protect teeth in these situations.
A cracked tooth around the filling
A small crack in the surrounding tooth can allow the filling to lift out, even if everything looked stable on the surface. See our page on cracked teeth for more.
Replacement
Why prompt replacement matters
An open cavity is more vulnerable than it looks. Without the filling, the underlying tooth structure is exposed to bacteria, acids, food debris, and temperature changes. Over time this can lead to:
Replacing the filling early usually means a smaller, simpler procedure and less risk of needing more involved care later.
Appointment
What to do until your appointment
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Treatment options when you come in
The right treatment depends on the size of the cavity and the condition of the remaining tooth. Common options include:
Appointment
What happens at your appointment
1. A gentle assessment
Your dentist will ask when the filling came out, whether the tooth is sensitive, and how it feels when you bite.
2. Examination and X-rays
A small digital X-ray helps us see whether decay has progressed beneath the surface and whether the nerve is involved.
3. Cleaning out the cavity
Any decay is gently removed and the cavity shaped to support a new restoration.
4. Restoring the tooth
Most replacement fillings can be completed in one visit. Larger restorations such as inlays, onlays, or crowns may need a second appointment.
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Who this page is for
Payment
Health funds and payment
We are a HICAPS provider, so where you have eligible dental cover we can process your health fund claim at the practice and you only need to pay any gap. The exact rebate depends on your individual policy, your level of cover, and your annual limits — your fund can confirm what is covered before treatment.
For larger restorations, we can provide an itemised plan with item numbers so you can check your entitlements in advance and discuss payment plan options at the appointment.
FAQs
Lost filling FAQs
Is a lost filling an emergency?
Not usually, unless there is significant pain, swelling, or a sharp edge cutting into the tongue. It is best to be seen within a few days to prevent further problems.
Will a temporary kit from the pharmacy hold for long?
Over-the-counter temporary materials are designed for a few days of cover at most. They are useful while you wait for an appointment, but they do not stop decay from progressing underneath.
Why does my tooth ache more at night?
An exposed cavity can be more reactive to temperature and pressure, and blood flow to the head changes when lying down, which can intensify pain. Persistent night pain is worth assessing promptly.
Can the same filling fall out again?
The original filling material is not reused. A new restoration is shaped to fit the current cavity, and we will discuss whether a stronger restoration such as an inlay, onlay, or crown is sensible.
Why does this keep happening on the same tooth?
Repeated filling loss often signals an underlying issue such as a hairline crack, an unstable bite, or grinding. Your dentist will look at these factors and may recommend additional protection.
How soon should I be seen?
Ideally within a few days — sooner if the tooth is painful, sensitive, or has a sharp edge. Book online and we will fit you in promptly.
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Speak to our team
If a filling has come out, please do not put off being seen. A prompt visit is usually a short, straightforward appointment and helps keep simple problems from becoming larger ones. Book online or phone the practice during opening hours.
Related pages
Related pages
Need to be seen?
Tell our team what’s going on and we’ll find a time.
Or phone Sandgate Family Dental on (07) 3269 6252.