Ceramics For Dental Applications

Question 1. Write a short note on the CAD/CAM process for ceramic and metal.
Answer:

Following is the CAD/CAM process for ceramic and metal:

Prepared tooth or teeth are scanned directly from the mouth or from a model made from a regular impression.
Now the restoration or substructure is designed on the computer.
Attach the metal or ceramic blank/ingot to the milling station and scan the bar code. In cases of metal, titanium metal blanks are commonly used.
Now the designed image data is retrieved immediately to mill or grind metal or ceramic by computer control.
The time taken for the milling depends on the size and complexity of restoration as well as the material used.
As milling is completed, the structure should be separated from the blank by using water-cooled cutting and grinding discs or burs.

Question 2. Explain its applications of dental ceramics.
Answer:

Applications of Dental Ceramics:

Dental ceramics are used as an indirect intracoronary restorative material for inlay, onlay, etc.
They are used as an indirect extra-coronal restorative material for constructing crowns and bridges.
They are used as intra–radicular posts for post-endodontic restoration.
They are used as biomaterials in the form of dental implants.
Ceramics orthodontic brackets are used in orthodontics.
They are used for constructing artificial denture teeth for complete as well as par

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