If you’ve had a dental filling before, you may be wondering: how long will it last, and how do I know when it needs to be replaced? This is one of the most common questions we get from patients at Significant Smiles in Brisbane CBD.
The good news is that modern tooth fillings are strong, reliable, and can last for many years with proper care. But like anything in life, they don’t last forever. Knowing the typical lifespan of a filling, and spotting the early warning signs that it’s time for a replacement, can save you from future dental pain, emergency appointments, and even more complex treatments.
In this blog, we’ll walk you through:
- The average lifespan of different types of dental fillings
- What can cause them to wear down faster
- Key signs that it may be time to replace your filling
- What to expect during a filling replacement
How Long Do Dental Fillings Last?
The lifespan of a dental filling depends on several factors, including the material used, where it’s placed in the mouth, and your personal oral care habits. On average:
- Composite (white) fillings – 5 to 15 years
- Amalgam (silver) fillings – 10 to 15 years
At Significant Smiles, we use high-quality tooth-coloured composite fillings, which are both durable and natural-looking. They’re designed to blend seamlessly with your smile while restoring the strength of your tooth.
Factors That Affect the Lifespan of a Filling
Even the best dental filling won’t last forever. A few things can shorten its lifespan:
- Teeth grinding (bruxism): Constant grinding or clenching puts extra pressure on your fillings.
- Chewing hard foods: Crunching on ice, hard lollies, or nuts can crack a filling.
- Tooth decay around the filling: If new cavities form, the filling’s seal weakens.
- Poor oral hygiene: Not brushing and flossing properly increases the risk of decay.
- Accidental trauma: A fall, sporting injury, or even biting into something unexpectedly hard can damage a filling.
Regular dental check-ups allow us to catch early wear and tear before it turns into a bigger issue.
Signs It’s Time to Replace a Dental Filling
Here are the most common symptoms that may indicate your filling is failing:
- Tooth sensitivity – If hot, cold, or sweet foods suddenly cause discomfort, it could mean your filling is leaking or no longer sealing properly.
- Pain or throbbing – Persistent toothache is a warning sign that decay has developed under or around the filling.
- Visible damage – Cracks, chips, or worn edges in the filling should be assessed straight away.
- A filling that feels loose or falls out – If this happens, it’s important to book an appointment quickly to prevent infection.
- Food getting stuck – Gaps around old fillings can trap food and bacteria.
If you notice any of these, don’t wait until it turns into an emergency. A simple filling replacement can protect your teeth and restore comfort.
What Happens During a Filling Replacement?
We completely understand that many patients feel nervous about replacing an old tooth filling, but at Significant Smiles, the process is gentle, straightforward, and designed with your comfort in mind. Our “Process to Perfection” ensures that every step is focused on quality care and a natural-looking result.
Here’s what you can expect:
- Consultation – We’ll begin with a caring consultation where we listen to your concerns, examine the tooth, and discuss the best treatment options suited to your needs, smile goals, and budget.
- Advanced Scan – Using the latest technology, we scan your teeth to assess the current filling and surrounding tooth structure. We’ll also explain why the filling needs to be replaced and share tips on how to prevent future cavities.
- Restoring for Optimal Health – The old filling is gently removed, the tooth is thoroughly cleaned, and a new tooth-coloured filling is placed to restore strength and protect your oral health.
- Like New Finish – The new filling is carefully shaped, polished, and matched to your natural tooth colour, leaving your smile looking as good as new.
- Flexible Payment Options – If you’re considering multiple treatments, we also offer interest-free payment plans, making high-quality dental care more accessible.
Most patients are pleasantly surprised by how quick, comfortable, and pain-free the experience is, and they leave not only with a healthier tooth but also with renewed confidence in their smile.
Emergency Filling Replacement
Sometimes, fillings don’t just wear out gradually, they can break or fall out unexpectedly. If you’re in pain or have a visible hole where your filling used to be, you may need an emergency dental filling.
Common reasons include:
- Trauma or an accident
- Grinding/clenching teeth
- Sudden fracture of the filling
- Severe decay beneath the filling
If this happens, contact us immediately. In the meantime, keep the area clean, avoid chewing on that side, and if possible, bring the fallen filling with you. We’ll do our best to repair or replace it promptly so you can get back to smiling and eating comfortably.
How to Make Your Dental Fillings Last Longer
The best way to protect your fillings (and your natural teeth) is with preventive care:
- Brush twice daily with fluoride toothpaste
- Floss every day to prevent decay around fillings
- Avoid chewing on hard objects like pens or ice
- Wear a nightguard if you grind your teeth
- Visit your dentist regularly for check-ups and professional cleaning
With the right care, your dental fillings can last for many years, and keep your smile healthy and confident.
Final Thoughts
A dental filling doesn’t last forever, but with modern materials and proper care, it can serve you well for many years. The key is to know the signs of wear, act early, and keep up with your oral health routine.
If you’re in Brisbane CBD and suspect your filling may need replacing, or if you’ve lost a filling and need emergency care, we’re here to help at Significant Smiles. Our team is passionate about restoring smiles with gentle, high-quality care in a comfortable environment.
Book your dental filling appointment now
📍 Suite 7, Level 1/167 Albert St, Brisbane City QLD 4000
📞 (07) 3221 0481
👉 Book Your Free Consultation Today
Frequently Asked Questions
1. How long do dental fillings last?
Most dental fillings last between 5 to 15 years, depending on the material, the size of the filling, and your oral care routine. With regular check-ups, they can often last longer.
2. How do I know if my dental filling needs to be replaced?
Signs include sensitivity to hot or cold, pain when biting, visible cracks, chips, or if the filling feels loose. If food is getting stuck around the filling, it’s also a red flag.
3. What should I do if my filling falls out?
Keep the area clean, avoid chewing on that side, and save the filling if possible. Call your dentist right away for a replacement or emergency appointment.
4. Is replacing a dental filling painful?
Not at all. With modern techniques and gentle care, replacing a filling is usually quick and comfortable. Patients are often surprised at how easy the process feels.
5. What is the best type of filling for front teeth?
Composite (white) fillings are the best option because they blend seamlessly with natural teeth and provide a strong, aesthetic result.
6. Can old silver fillings be replaced with white ones?
Yes. Many patients choose to replace old amalgam (silver) fillings with tooth-coloured composite fillings for a more natural and aesthetic smile.
7. How much does a filling replacement cost in Brisbane CBD?
Costs vary depending on the size and location of the filling. At Significant Smiles, we offer high-quality fillings at competitive prices, with interest-free payment plans available.
8. Can I eat after getting a new filling?
Yes, you can usually eat right away after a composite filling. However, it’s best to wait until the numbness wears off to avoid biting your cheek or tongue accidentally.
