How Much Tooth Is Needed for a Crown? | PMD Dental Care
When it comes to the restoration of a decayed or broken tooth, dental crowns are the best solution in cosmetic dentistry. A crown, also referred to as a tooth cap, is meant to completely cover the exposed portion of your tooth, returning it to its strength, functionality and aesthetics. However, a question that most patients ask us is: How much of the natural tooth is needed to support a crown?
We at PMD Dental Care in Port Melbourne often guide our patients through this process. So let’s take a look at what is required for a dental crown to be successful and what options are available when you have minimal tooth structure.
How Much Tooth Structure Is Required for a Crown?
In general, at least 1/4 to 1/3 of the original tooth structure should remain above the gum to serve as a solid foundation. Our dentist at Port Melbourne prefers to have at least 2mm of healthy tooth structure above the gum to securely anchor the crown. This remaining tooth, known as the “ferrule,” is essential for the crown’s long-term success.
If a tooth is badly broken, rotted, or worn, our dentist will determine if enough healthy teeth are left to hold the crown without further treatment.
Why Is Enough Tooth Structure Needed?
A dental crown functions optimally when it has adequate tooth structure to grip and protect. If there isn’t enough of the natural tooth left:
- The crown may not bond properly.
- The risk of the crown becoming loose or falling off increases.
- The tooth may be prone to further damage or fracture.
Adequate tooth structure also provides for the bite force evenly, which prevents unnecessary pressure on surrounding teeth.
What If There’s Not Enough Tooth Left?
In cases where the original tooth is severely damaged then don’t worry—there are several dental procedures that help build up the tooth to support the crown. Your Port Melbourne dentist can recommend one of the following procedures:
1. Core Build-Up
If some part of the tooth is missing, a core build-up process is conducted. A filling material (typically composite resin) is used to replace the tooth’s core and support the crown adequately.
2. Post and Core
If a tooth is one that has had a root canal and does not have a lot of structure left, your dentist may place a post inside the root canal to offer support for the core build-up material. This gives a solid base for the crown.
3. Crown Lengthening
Sometimes, a crown lengthening procedure may be necessary. This involves cutting away some of the gum tissue (and sometimes bone) to expose more of the natural tooth structure. This allows the crown to seat securely and properly.
4. Extraction and Dental Implants
In the worst cases where the tooth cannot be preserved, your dentist would recommend tooth extraction followed by dental implant. A dental implant provides a stable, long-term replacement alternative that feels like a natural tooth in both appearance and function.
What Should Dentists Consider Before Placing Crowns
At PMD Dental Care, we carefully assess:
- Amount of remaining tooth structure
- Tooth location and bite pressure
- Condition of surrounding teeth and gums
- Patient’s oral hygiene habits
- Long-term prognosis of the tooth
These factors help us determine the best restorative approach for your unique situation.
Benefits of Dental Crowns
Dental crowns have several benefits when properly placed: These include:
- Restore tooth shape, size, and strength
- Enhance tooth function for chewing and speaking
- Save a weakened or fractured tooth from more damage
- Enhance the appearance of your smile
Whether you need a crown for cosmetic reasons or to strengthen a weak tooth our team at PMD Dental Care in Port Melbourne are here to help you.
How Much Does a Dental Crown Cost?
The price of a dental crown in Port Melbourne depends on the type of material, complexity of the case, and whether additional procedures like core build-up or crown lengthening are required.
We recommend scheduling a consultation to get a personalised treatment plan and cost estimate.
Final Thoughts
If you’re wondering whether your tooth can support a crown, the best step is to book an assessment with your Port Melbourne dentist. At PMD Dental Care, we’ll thoroughly examine your tooth, discuss your options, and provide solutions that offer long-lasting results.