Do I Need a Dental Crown? Crown vs Filling Explained Simply
Updated: Nov 3
Updated Nov 2026
You've had a filling in a tooth for years. Perhaps it's become worn, a piece has broken away, or your dentist has noticed a crack.
Now you're being told a crown might be the better option.
It's natural to wonder, “Could we just replace the filling?”
And sometimes, that's exactly what we would recommend.
At Greenbank Family Dental, one of the most important considerations when restoring a tooth is how much healthy natural tooth remains and how we can best preserve it.
A filling, crown or another type of restoration may each be appropriate, depending on the condition of the tooth.
Understanding those differences can help you feel more confident about the treatment options available to you.
When is a filling not enough anymore?
Fillings are excellent for small to moderate damage — but they have limits.
You may need a crown instead of a filling when:
The tooth has a large or failing filling
The tooth is cracked, fractured, or weakened
There is not enough healthy tooth structure left
The tooth has had multiple repairs over time
The tooth has undergone root canal treatment and may benefit from additional protection, depending on how much healthy tooth structure remains.
In these situations, we assess whether a filling can provide sufficient support or whether a crown or another restoration may be more suitable.
Every Tooth Has Its Own History
Some teeth have never needed treatment. Others have been repaired once or twice, sometimes over many years.
A filling that served a tooth well for a long time may eventually need replacing. When that happens, we look at more than the filling itself.
We consider the surrounding tooth structure, any signs of cracking or wear, and how the tooth handles the forces of everyday chewing.
Sometimes another filling is a suitable option.
In other situations, the remaining tooth may benefit from a restoration that provides greater coverage, such as a crown or onlay.
The aim is to look after the natural tooth that's still there, while choosing a restoration suited to its condition.
Crown vs Filling — How Dentists Decide
Both fillings and crowns can help restore damaged teeth. The most suitable option depends on the condition of the tooth, how much healthy structure remains and the forces it experiences when chewing.
Fillings
Often suitable for smaller to moderate areas of damage
Generally require less preparation of healthy tooth structure
Usually have a lower initial cost
May be less suitable when large areas of the tooth need rebuilding
Crowns
Provide coverage over the prepared tooth
Can help support teeth with extensive damage or large existing restorations
Are individually designed to restore function and appearance
May be recommended where additional coverage is needed to manage chewing forces
Other options
In some cases, an onlay may be suitable. This type of restoration covers selected areas of the tooth rather than the entire visible crown.
At Greenbank Family Dental, we consider the available options and explain the benefits and limitations of each before deciding on the most appropriate approach together.
Can I Wait Before Having a Crown?
Sometimes monitoring a tooth is a reasonable option. In other situations, earlier treatment may help preserve more of the remaining tooth structure.
The decision depends on what your dentist finds.
For example, a tooth with a crack extending into a weakened area may need a different approach from a tooth with an older filling that is still functioning well.
It's also worth remembering that a tooth can feel comfortable even when there are underlying structural concerns.
If treatment has been recommended, ask your dentist what they have found, what the available options are and what may change if you decide to wait.
Understanding the reason for the recommendation helps you make a decision that suits your circumstances.
What is a dental crown?
A dental crown is a strong, tooth-shaped “cap” that covers and protects a damaged tooth. It restores both function and appearance, allowing you to chew, smile, and speak with confidence.
At Greenbank Family Dental, we recommend ceramic crowns for many patients because they combine durability with a natural look that blends seamlessly with your smile.
Why ceramic crowns?
Durability — made from high-strength ceramics designed to withstand years of chewing
Natural appearance — mimics the translucency of natural enamel
Metal-free materials — ceramic crowns can be a suitable option for patients seeking a metal-free restoration
Stain resistance — many dental ceramics are relatively resistant to surface staining, although appearance can change over time
Custom fit — individually designed to suit your bite and the neighbouring teeth
What Happens During Crown Treatment?
Crown treatment generally involves assessing and preparing the tooth, taking a digital scan, creating a custom restoration and fitting the finished crown.
A temporary crown is usually placed while your final crown is being made.
For a more detailed explanation, visit our Dental Crowns page, where we explain the six stages of treatment.
Does getting a crown hurt?
Local anaesthetic is generally used during tooth preparation to help keep you comfortable.
You may notice some pressure or vibration during the appointment, and temporary sensitivity or tenderness can occur afterwards.
If you're feeling anxious or have concerns about discomfort, please let us know. We'll explain what to expect and work with you throughout the appointment.
How long do dental crowns last?
Dental crowns are designed to provide lasting function, and many remain in service for 10–15 years or longer.
Their lifespan varies depending on the condition of the underlying tooth, the materials used, your bite and how well the crown is maintained.
You can help care for your crown by:
Brushing twice daily and cleaning between your teeth
Attending regular dental examinations and cleans
Avoiding chewing hard objects such as ice
Discussing teeth grinding or clenching with your dentist, particularly if a protective night guard may be appropriate
We'll also check the condition of your crown and surrounding tooth during future dental visits.
Costs & rebates
Typical cost: $1,600–$2,000 depending on complexity
Health fund rebates: Available (varies by policy)
DVA: Accepted
Payment plans: Available to make treatment accessible
ADA Item Codes for Dental Crowns
Dental treatments in Australia are identified using item numbers from the Australian Dental Association (ADA) Schedule of Dental Services and Glossary.
These codes help identify the type of treatment being provided and can be useful when checking potential rebates with your private health insurer.
Common crown-related item codes include:
651: Full coverage crown — ceramic
672: Full coverage crown — veneered ceramic
661: Full coverage crown — gold
655: Full coverage crown — indirect resin
The item code used for your treatment will depend on the restoration recommended and the materials selected.
At Greenbank Family Dental, we'll explain the proposed treatment and provide the relevant item codes as part of your treatment plan, so you can understand the costs and check any applicable health fund benefits before proceeding.
FAQ
Are crowns better than fillings?
Not always — but they are better for larger or weakened teeth where strength is critical.
Do crowns look natural?
Yes. Ceramic crowns are colour-matched to blend seamlessly with your smile.
Can a crown fail or fall off?
Yes, crowns can occasionally loosen or become detached. This may happen because of changes to the underlying tooth, decay, bonding issues or the forces placed on the restoration. If your crown becomes loose, contact your dentist for an assessment.
Can I eat normally with a crown?
Yes — once placed, your crown functions like a natural tooth.
Understanding Your Options at Greenbank Family Dental
We believe good dental care begins with understanding the person and the tooth we're treating.
When we recommend a filling, crown or another restoration, we want you to understand what we've found, why a particular treatment may be suitable and what other options are available.
We take the time to explain the benefits, limitations and costs so you can make an informed decision about your care.
Because the goal is more than completing a restoration.
It's helping you look after your natural teeth for as long as possible.
Understanding Your Treatment Options
Have a tooth that's been repaired several times, or have you been advised that a crown may be needed?
We're happy to assess your tooth, explain what we've found and discuss the treatment options available to you.
Book an Appointment or call (07) 2103 2343.
Cross-links
Related treatment: Fillings
After root canal therapy: Root Canal Treatment
Long-term protection: Check-Up & Clean
Go to our Dental Crowns Page
This article about ceramic crowns is simple and very helpful. It explains the treatment clearly and shows how it improves both look and function. The information on Teeth Crowns is easy to understand and useful for patients. Overall, it’s a good guide for anyone considering dental restoration options.