Dental fillings are used to repair teeth affected by decay or damage. Their lifespan depends on the material used, your oral habits, and how well you care for your teeth.
Average Lifespan of Dental Fillings
- Amalgam (silver) fillings: 10–15 years
- Composite (tooth-coloured) fillings: 5–10 years
- Gold fillings: 15–20 years
- Ceramic fillings: 10–15 years
What Affects the Longevity of Dental Fillings?
The lifespan of a filling is influenced by:
- Oral hygiene habits – daily brushing and flossing protect against new decay.
- Diet and lifestyle – frequent sugar, acidic drinks, teeth grinding, or chewing hard foods can shorten lifespan.
- Size and placement – larger fillings or those on molars wear faster.
- Regular dental check-ups – help detect early signs of wear or failure.
Signs You May Need a Filling Replaced
Common warning signs include:
- Sensitivity to hot, cold, or sweet foods
- Visible cracks or chips in the filling
- Pain or discomfort when biting down
How Do Dentists Replace Old Fillings?
The process is straightforward: the dentist removes the old filling, cleans the tooth, and carefully places a new one. This restores both the look and function of your tooth.
Tips to Make Your Fillings Last Longer
- Brush twice a day and floss daily
- Avoid chewing on hard objects like pens or ice
- Limit sugary and acidic foods and drinks
- Visit your dentist regularly for check-ups and cleans
FAQs
Is it painful to replace a filling?
No – local anaesthetic ensures the procedure is comfortable, with minimal discomfort afterwards.
Can a filling fall out on its own?
Yes, this can happen if the tooth around it weakens or if the filling is worn. Contact your dentist promptly if it does.
Do dental fillings weaken teeth over time?
Fillings can slightly reduce natural tooth strength, but modern techniques and materials minimise this risk.
How many times can a filling be replaced?
Fillings can usually be replaced multiple times, but if too much tooth structure is lost, a crown may be recommended instead.
How long do fillings usually last?
Most fillings last between 5–15 years depending on the material, care, and lifestyle habits.
Ready to Restore Your Smile?
If you’re experiencing sensitivity, pain, or think your filling might need replacement, our friendly dentists at SIA Dental are here to help. Learn more about our dental crown service.
Book your dental crown consultation today. Book online or Call (03) 8676 4514 now.