week 2: posterior metal crown Flashcards Preview

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Flashcards in week 2: posterior metal crown Deck (5)
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1

what is the metal occlusal surface reduction for a FVC

1mm non functional cusp
1.5mm functional cusp

2

what is the metal occlusal surface reduction for metal + porcelain

1.5mm non functional cusp
2mm functional cusp

3

what is the axial reduction for a posterior metal crown

1.2mm in total
0.5mm metal structure
0.2mm porcelain
0.5mm aesthetic porcelain

4

what might be the issue if there is too much thickness

too bulbous in shape and will risk aesthetics and may increase the likelihood of gingival inflammation

5

what are the instruments needed

Shoulder bur- which has a 6 degree taper, and a flat cutting end with a diameter of 1mm
Packer- the diameter of the end of the small packer is 1.5 mm
Silicone putty