What is a dental crown and when do you need one?

A dental crown is a custom-made cap that covers the entire visible portion of a tooth above the gum line. It restores the tooth’s shape, strength, size and appearance when a standard filling is no longer sufficient.

Your dentist may recommend a crown when:

• A tooth has a large filling – if more than half the tooth structure is filling material, the remaining tooth walls are weakened and at risk of fracturing. A crown holds everything together.
• A tooth has cracked – cracks can spread through the tooth under chewing pressure. A crown binds the tooth and prevents the crack from extending into the root, which would require extraction.
• After root canal treatment – a root-canal-treated tooth loses its internal blood supply and becomes more brittle over time. A crown protects it from fracture during normal function.
• Severe wear or erosion – teeth worn down by grinding (bruxism) or acid erosion may need crowns to rebuild lost structure and restore the correct bite height.
• Cosmetic reasons – a crown can improve the appearance of a severely discoloured, misshapen or undersized tooth when other options like veneers are not suitable.

A crown is not always the first option. Your dentist will consider whether a filling, inlay, onlay or veneer can achieve the same result with less tooth preparation.

Crown materials compared – porcelain, zirconia and PFM

The three most common crown materials used in Australian dental practices each have distinct advantages. The right choice depends on which tooth is being crowned, your bite forces, your cosmetic priorities and your budget.

Full porcelain (ceramic) crowns

Full porcelain crowns – typically made from lithium disilicate (e.g. IPS e.max) – provide the most natural, lifelike appearance. They transmit light similarly to natural tooth enamel, making them the preferred choice for front teeth where aesthetics are critical. They are strong enough for most applications, though they can chip under very heavy bite forces. Indicative cost: $1,400-$1,800 per crown.

Zirconia crowns

Zirconia is an extremely strong ceramic material with flexural strength of 900-1,400 MPa – roughly five times stronger than lithium disilicate. Zirconia crowns are virtually chip-proof and are an excellent choice for back teeth (premolars and molars) that bear heavy chewing loads. Modern multi-layered zirconia also offers improved aesthetics compared to earlier generations. Indicative cost: $1,300-$1,700 per crown.

Porcelain-fused-to-metal (PFM) crowns

PFM crowns have a metal alloy core (gold, palladium or base metal) covered with a porcelain outer layer. They offer good strength and reasonable aesthetics. The main drawback is that a thin dark line can sometimes show at the gum margin as gums recede over time. PFMs have a long track record and remain a reliable, cost-effective option. Indicative cost: $1,200-$1,500 per crown.

Note: All costs are indicative ranges. Your exact fee depends on the tooth position, material selected and laboratory costs. A written treatment plan is provided before any work begins. Confirm pricing at your appointment.

What is a dental bridge and how does it work?

A dental bridge is a fixed prosthesis that replaces one or more missing teeth. It consists of:

• Abutment crowns – crowns placed on the natural teeth on either side of the gap (the “anchor” teeth)
• Pontic – the false tooth (or teeth) that fills the gap, fused between the abutment crowns

A three-unit bridge (the most common type) replaces one missing tooth and involves crowning the two adjacent teeth. The result is a single, fixed piece that looks and functions like natural teeth. You cannot remove a bridge yourself – it is cemented permanently in place.

When is a bridge a good option?

A bridge may be recommended when the teeth on either side of the gap already need crowns (so preparing them is not a disadvantage), when the patient prefers a non-surgical option (compared to implants), when treatment needs to be completed within a few weeks rather than months, or when bone or medical conditions make implant surgery unsuitable.

Bridge versus implant

A dental implant replaces a missing tooth without involving the adjacent teeth. An implant consists of a titanium post surgically placed in the jawbone, topped with a crown. It preserves bone and does not require preparing neighbouring teeth. However, implants involve surgery, a healing period of three to six months, and a higher upfront cost.

A bridge is faster and less invasive but requires preparation of healthy adjacent teeth. Both options have high success rates. Your dentist will discuss which suits your situation after a clinical and radiographic assessment.

The crown and bridge procedure – step by step

Getting a dental crown or bridge typically takes two appointments spaced two to three weeks apart.

Appointment one – preparation

1. Assessment: Your dentist examines the tooth, reviews X-rays to check the root and surrounding bone, and confirms the treatment plan
2. Anaesthesia: The tooth is numbed with local anaesthetic so you are comfortable throughout
3. Tooth preparation: The dentist reshapes the tooth by removing a thin layer (1-2 mm) from all surfaces to create space for the crown to fit over it. For a bridge, both abutment teeth are prepared
4. Impression: A digital scan or physical impression of the prepared tooth and surrounding teeth is taken. This is sent to the dental laboratory to fabricate the crown or bridge
5. Temporary crown: A temporary acrylic crown is placed over the prepared tooth to protect it while the permanent crown is being made

Between appointments

The dental laboratory crafts the crown or bridge to match the shade, shape and contour of your natural teeth. This typically takes 10-14 working days. During this time, care for the temporary crown by avoiding sticky or very hard foods on that side.

Appointment two – fitting

1. Temporary removal: The temporary crown is removed and the tooth is cleaned
2. Try-in: The permanent crown or bridge is placed to check the fit, bite alignment and colour match
3. Adjustments: Minor adjustments are made if needed to ensure the bite feels natural and comfortable
4. Cementation: Once you and your dentist are satisfied, the crown or bridge is permanently bonded to the tooth with dental cement

Recovery and aftercare

Recovery after a dental crown or bridge is straightforward compared to surgical procedures.

First 24-48 hours: Mild sensitivity to hot and cold is normal, especially near the gum line. Some tenderness in the gum tissue around the crowned tooth is common and should settle within a few days. Over-the-counter pain relief is usually sufficient.

First 1-2 weeks: Avoid very sticky foods (toffee, chewy lollies) and hard foods (nuts, ice, hard lollies) on the crowned tooth while the cement fully sets and the gum tissue settles.

Long-term care:

• Brush twice daily and floss daily – treat the crown like a natural tooth
• For bridges, use a floss threader or super floss to clean beneath the pontic every day
• Wear a night guard if you grind your teeth – grinding can crack porcelain crowns
• Attend six-monthly dental check-ups so your dentist can monitor the crown margins and gum health
• Avoid using your teeth as tools (opening packaging, biting pens, cracking ice)

With proper care, a dental crown typically lasts 10-20 years. Many crowns last significantly longer.

How much do crowns and bridges cost in Pakenham?

Indicative full fees (before health-fund rebates):

• Full porcelain (ceramic) crown: $1,400-$1,800 per crown
• Zirconia crown: $1,300-$1,700 per crown
• Porcelain-fused-to-metal (PFM) crown: $1,200-$1,500 per crown
• Three-unit bridge: $3,600-$5,400 (three crowns joined together)
• Core build-up (if needed before the crown): $200-$400

With HICAPS on-the-spot health-fund claiming, out-of-pocket costs are typically lower than the full fee. Many health funds cover a portion of the crown cost under their Major Dental benefit category. Pakenham Creek Family Dentist also offers Afterpay, Zip Pay, SuperCare and NDP payment plans. A detailed written treatment plan with exact fees is always provided before any work begins. Confirm pricing at your appointment as costs vary by case.