Maxillary Cuspid Preparation for a Porcelain Fused to Gold Crown

Shows the preparation, on a visidont, of a maxillary cuspid for a procelain fused to gold crown. Orig. air date: MAR 21 79

This is part of the Open.Michigan collection at:
http://open.umich.edu/education

Category:

Education

Tags:

• Crown
• Fabrication

[SavigeBlazer]

why does the skin above the tooth that is being worked on has a different colour during the prosideure ?

[Zezottie]

@drnoosaya practice indirect vision more 

[dashark79]

they are working on a plastic model without water for better visualisation... I'm sure they'd use coolant spray in the mouth of a live patient!

[ashraf130286]

a helpful video..

[SPUNKKK]

Im gonna go brush my teethe now ...

[drnoosaya]

it is a good vidio but i still have difficulty in crown preparation espetially the palatal surface of anterior teeth.I dont know what shall i do

[BradFazner]

anyone know of someone who posts recent stuff that has a lot posted?

[andypandyhu]

@ammhn88 in my opinion the burs that were used are as follows. round bur first for front and depth groves, the needle point for interproximal to avoid damage to neighbouring teeth, normal torpedo for palatalside gingival area and just general shaping of front, and oval shaped for the lingual fossa/cingulum area with no depth groves formed. looks to me like it was a chamfer preperation.

i guess its 9months late but you asked so i thought i would give you my ideas lol ;-P

[andypandyhu]

@bafan4lifehotline the white is the powdered tooth as it doesnt look like they are using water spray, which they should by modern standards but this movie is really old so perhaps they didnt use water cooling then :)

[andypandyhu]

@muneco0211 dimonds rotating at speeds of 400,000 rpm, not so strange really lol