What is a Dental Crown?
A dental crown covers a tooth, usually the entire tooth. This enables dental crowns to improve the appearance and increase strength. As a dental crown is made outside the mouth, it can be made out of different types of material i.e. ceramic (porcelain), metals or a combination of metal and porcelain.
When is a Dental Crown Needed?
Dental Crowns are required when:
o Lack of support for a tooth i.e. when unable to restore with a filling
o Changing the appearance of a tooth i.e. changing the colour or shape of a tooth
o Dental implants are placed
o Dental bridges are required
o Holding a cracked tooth together
What are the different types of dental crowns?
Ceramic (Porcelain) – Ceramic dental crowns achieve the best possible aesthetics. They are as close as possible to natural looking teeth.
We at Warners Bay Dental, with the use of the Cerec (digital) machine are able to offer ceramic (porcelain) restorations in one appointment or the conventional two appointment method to restore with a dental crown.
Porcelain Fixed to Metal – These dental crowns have a metal core and a porcelain covering and share some of the principles of porcelain and some of the principles of metal crowns. Porcelain fused to metal crowns are used when certain properties of the different types are required. However, in certain situations the underlying metal can show through the, with usually a dark line at the gum line.
Metals – Metal crowns are normally used for back teeth where the dental crown is not visible. Metal crowns are made from gold alloy or base-metal alloy (e.g. Nickel or Chromium).
Possible Risks with Dental Crowns
In most cases dental crowns are used to replace large areas of missing teeth. Due to this, in a small number of cases the pulp (nerve of the tooth) can be in close proximity which may result in requiring further treatment i.e. Root Canal Therapy.
What is Involved with a Dental Crown?
Step 1. Tooth Assessment - Our dentists at Warners Bay Dental will assess the tooth clinically and possibly with an x-ray. The dentist will then discuss options and cost of possible treatment.
Step 2. Tooth Preparation – The tooth will need to be prepared by removing decay, part or all of the existing restoration and also shaping the tooth to help with the seating and stability of the dental crown.
Step 3. The dentist will design and create the crown using a digital impression (approx. 5 - 15mins)
Step 4. The Dentist will glaze or polish the crown (approx. 5-30 mins)
Step 5. The same day the permanent tooth will be bonded.
Step 3. The dentist will use impression paste to make a model of the tooth
Step 4. A temporary crown will be created and cemented into place
Step 5. The model of the tooth will be sent to the dental lab for crown fabrication
Step 6. 2-3 weeks after the preparation appointment you will return to have the permanent crown cemented
Other Things to Consider
1. Colour of your natural teeth. The dental crown will usually be matched in order to look the same as your adjacent teeth. So it is a good time to consider the shape and colour of surrounding teeth. Restoring or bleaching is possible to improve your smile.
2. Caring for a dental crown is the same as looking after your natural teeth i.e. tooth brushing and flossing
3. The cost will vary between the different types of crown. Your dentist at Warners Bay Dental will be happy to create an estimate of cost. If you call your private health fund insurer regarding your eligible rebate, the item number to quote will be either: 613, 615 or 616.