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CR Manual CP L&M en - Creation Willi Geller

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TOOTH PREPARATION<br />

1,5<br />

2,0<br />

1,5<br />

1,5<br />

2,0<br />

2,0 2,0<br />

1,5<br />

0,7<br />

0,5<br />

1,5 - 2,0<br />

0,5<br />

1,5<br />

5 | L O W<br />

I N L AY S<br />

Inner walls should not be prepared parallel, but op<strong>en</strong> out approx.<br />

15 ° towards the occlusal surface. Occlusal preparations<br />

should be approx. 2 mm deep. Box preparations should have<br />

rounded corners and edges with no contact to the opposing bite<br />

at the junction of the tooth and inlay and no feather edges.<br />

<strong>CR</strong>OWNS<br />

Reduce the incisal edge by 2 mm and labial and buccal walls by<br />

1 – 1,5 mm. Prepare a well-formed deep chamfer or 90° shoulder.<br />

There should be no sharp edges and a minimum space of 1 mm<br />

palatally.<br />

L A M I N AT E V E N E E R S<br />

Prepare labially to a minimum of 0,5 mm at the gingival deep<br />

chamfer and up to 1 mm at the incisal edge. All preparation margins<br />

should be deep chamfers.

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