Your dentist says you need some work done on a tooth. The question that follows is often: do I need a filling or a crown? The answer depends on how much healthy tooth structure remains and how much load that tooth needs to bear.
This is not a cosmetic choice. It is a structural decision. Getting it right means the restoration lasts. Getting it wrong means you are back in the chair sooner, usually for something more expensive.
What a filling does
A filling replaces a small to moderate amount of lost tooth structure. Your dentist removes the decayed or damaged portion and fills the space with a restorative material, most commonly composite resin (tooth-coloured) or amalgam (silver).
Fillings work well when:
- The cavity or damage is small to moderate
- The walls of the tooth around the filling are thick and intact
- The tooth has not had previous large restorations
- The tooth is not under extreme biting forces (though back teeth can receive fillings too)
A composite filling at Ivy Dental starts from $200. The appointment takes 30 to 45 minutes and is completed in a single visit.
The key advantage of a filling is conservation. Less tooth is removed. The procedure is quicker, less expensive, and preserves more natural structure.
What a crown does
A crown replaces the entire visible portion of a tooth. The tooth is prepared by reducing it on all sides, and a custom-made porcelain cap is cemented over the top. It encases and protects the remaining structure.
Crowns are appropriate when:
- More than half the tooth structure is missing or compromised
- The tooth has a crack running into the body of the tooth
- A previous filling is large and the walls around it are thin
- The tooth has had root canal treatment and is now more brittle
- An old filling has failed and there is not enough tooth left for a new filling
Crowns at Ivy Dental start from $1,600. The process typically involves two appointments: one for preparation and impressions, one for fitting the final crown. A temporary crown protects the tooth in between.
The decision point: how much tooth is left
The single most important factor is how much sound tooth structure remains after removing the decay or old filling material.
Plenty of tooth remaining. A filling is the right call. There is enough structure to hold the filling in place and withstand normal biting forces.
Borderline. This is where clinical judgement matters. Your dentist will consider the tooth's position (back teeth bear more force), your bite, whether you grind your teeth, and the long-term prognosis. Sometimes an inlay or onlay sits between a filling and a crown in terms of coverage.
Minimal tooth remaining. A crown may be recommended when too little sound tooth structure remains to support a filling. In a heavily compromised tooth, a filling may offer only temporary support, and the remaining walls can still fracture.
At Ivy Dental, we show you the X-rays and intraoral photos so you can see the situation yourself. The recommendation is explained in terms you can understand, not just clinical shorthand.
Book a consultation to assess your tooth, or call (07) 3266 7120.
What about teeth that have had root canals
A tooth that has undergone root canal treatment is structurally weakened. The nerve and blood supply have been removed, and the tooth becomes more brittle over time. In most cases, a crown is recommended after a root canal on a back tooth to prevent fracture.
Front teeth after root canal treatment may sometimes be managed with a filling alone, depending on how much tooth remains. Your dentist will assess this case by case.
The cost difference in context
The gap between a filling (from $200) and a crown (from $1,600) is significant. It is natural to prefer the less expensive option. But choosing a filling for a tooth that needs a crown is not saving money. It is deferring cost.
A filling that fails in a compromised tooth can lead to:
- A cracked tooth requiring extraction
- Root canal treatment plus a crown (higher total cost)
- An emergency visit for pain or a broken tooth
The financially sound decision is the one that addresses the structural reality. Your dentist at Ivy Dental will always recommend the more conservative option when both are clinically appropriate.
Health fund rebates may apply to both fillings and crowns. We process claims on-site via HICAPS so you pay only the gap. Payment plans may be available to approved applicants.
When to get a second opinion
If you have been told you need a crown and you are unsure, a second opinion is reasonable. Bring your X-rays (we can provide digital copies) and ask another dentist to assess the tooth independently.
At Ivy Dental, we welcome second-opinion consultations. We will review your situation, show you the images, and give you an honest assessment. If a filling will do the job, we will say so.
For more on how to evaluate competing treatment plans, see our guide on choosing between two dental quotes.
What to ask your dentist
These questions will help you understand the recommendation:
- How much of my tooth is left after the decay is removed?
- If I choose a filling, how long would you expect it to last?
- What is the risk if the filling fails?
- Is an inlay or onlay an option for my situation?
The answer to the crown-or-filling question is almost always clear once you see the X-rays. At Ivy Dental in Everton Park and Nundah, we make sure you see exactly what we see before any decision is made.
Book your assessment at Ivy Dental, or call (07) 3266 7120.
Indicative pricing. Your quote may differ based on clinical assessment. Individual results vary.
