Dental Crowns: What Are They, Types, Procedure & Care
Updated: Aug 9
Your dentist advised crown placement on an endo-treated tooth, and now you want to know all the essential details of a crown.
You are at the right place.
In this article, you will get to know about dental crowns and how much natural tooth is needed for crown. You will also learn about the risk and benefits of the crown placement.
What is a dental crown?
Tooth shaped cap is called a dental crown, and it covers only the visible tooth portion. These crowns are made up of different types of material like metal, pfm, and zirconia and can be fit into the remaining tooth and help in restoring the size, strength, and appearance.
When do you need a dental crown?
To restore the cracked and grossly carious tooth.
To stabilize the dental bridge.
To cover discoloration of tooth
To cement the dental implant
To cover the root canal treated tooth.
What are the types of a dental crowns?
Many people want to know the difference between dental caps vs crown. Apart from the full crown, types of crown also include Onlay and ¾ crown. These are conservative tooth restoration options in the presence of adequate tooth structure.
Which material is used for making dental crowns?
Permanent crowns are made of several materials including
Dentists place full metal crowns in posterior teeth to withstand the occlusal forces. Metal is resistant to chipping. Many people avoid metal crowns because of their silver color.
Porcelain fused to metal or pfm
This type of crown is made of two portions. The inner portion is made of metal, and the outer visible portion of porcelain. The main drawback of this crown is that it has low tear resistance and is brittle in nature. There are high chances of porcelain chipping in posterior molars, but they are considered a good restoration option in anterior teeth because of their natural tooth-like color.
Many dentists recently prefer the zirconia crown because of its strength and durability. The dentist can also match the exact shade in the zirconia crown, and it is also very biocompatible.
How the tooth is prepared for a dental crown?
Cementation of the crown generally takes place in two visits. On the first visit, the dentist will prepare your tooth using a handpiece and burs. Tooth preparation also depends on the material of the dental crown. PFM and all-porcelain need more tooth preparation than zirconia and the all-metal crown.
The dentist takes the impression after tooth preparation and sends the impression to a dental lab for crown fabrication. The dentist places a temporary crown.
In the next visit, cementation is done, and the dentist checks your bite using bite paper and removes any high spots.
With the help of CAD/CAM dentist can also place a crown within 15 minutes.CAD/CAM is computer software and carves the exact design of crown using ceramic or zirconia block.
What problems can you face after dental crown cementation?
Some of the common problems that you can face in the preparation and cementation procedure of dental crown before and after are as follows:
· Loose crown