Dental fillings are one of the most common restorative treatments, and for good reason – they’re a reliable way to repair damage, restore function and protect your teeth from further decay. But if you’ve recently had one done, you may be wondering: how long do fillings last? The answer depends on several factors, including the material used, your oral hygiene habits, and even your daily diet.
The Average Lifespan of a Filling
Fillings aren’t designed to last forever. On average:
- Composite (tooth-coloured) fillings generally last around 5-7 years, and may last longer with good care and maintenance.
- Amalgam (silver) fillings are often more durable, lasting 10-15 years on average.
- Gold or porcelain fillings (inlays/onlays) can last 15 years or longer, especially when cared for properly.
These are averages, not expiry dates – some fillings can fail earlier, while others can stay strong for decades. Regular check-ups are key to spotting early signs of wear.
Some Factors That Affect How Long Fillings Last
The lifespan of a filling is influenced by:
- Biting and chewing habits: Constant grinding or chewing on hard objects (like ice or pens) can shorten a filling’s life.
- Oral hygiene: Plaque build-up around a filling can cause decay to develop underneath it.
- Diet: A high-sugar or acidic diet can accelerate wear and decay.
- Location and size of the filling: Fillings on molars endure more chewing force and may wear faster than those on front teeth. Larger fillings are also weaker because they rely more on the filling material than the natural tooth, and is exposed to more stress from chewing. Large fillings often act as a “temporary solution” until a stronger restoration like a crown or onlay is placed.
- Material choice: Some materials are more aesthetic but less durable; others prioritise strength over appearance.
Knowing When a Filling Needs Replacing
Fillings can develop cracks, chips or gaps over time. You might notice:
- Sensitivity to hot, cold or sweet foods
- Pain when biting
- Visible dark spots or rough edges
- Food getting stuck around the filled tooth
Sometimes, however, you won’t feel any symptoms at all – which is why routine dental visits are so important. At Clover Dental, we use precise diagnostic tools to detect even the smallest issues before they turn into bigger problems.
Extending the Life of Your Filling
To get the most out of your filling:
- Brush twice a day with fluoride toothpaste
- Floss daily to keep the edges of the filling clean
- Avoid biting hard objects
- Wear a night guard if you grind your teeth
- Book regular dental check-ups and cleans
Restoring your smile with confidence
Whether you need a brand-new filling or a replacement for an ageing one, Clover Dental offers exceptional restorative solutions tailored to your needs (we can also assist with root canal therapy, wisdom tooth extraction, veneers, teeth whitening and all your other dentistry needs). Our experienced team combines advanced techniques with a gentle, caring approach to keep your smile healthy and strong for years to come. If you’re wondering how long your fillings might last – or think it’s time for a check-up – we’re here to help. Book your appointment today and give your teeth the care they deserve.
