| Cristobal |
Preparation
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Indications
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- metal free / fiber-free |
| inlay/onlays: all teeth |
| veneers: all teeth |
| crowns: all teeth through 1st molar |
| bridges: all teeth through 2nd bicuspid, one pontic bridge only |
| |
- with metal substructure |
| crowns & bridges (w/metal substructure): all teeth |
| |
- implants |
| all teeth / bonded-to-metal |
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Contraindications
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- do not use with fiber substructures
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Preparation Guidelines:
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General specifications: |
| 1- use a chamfer margin around the gingival margins. Margins that extend to the occlusal or incisal must be a 90o or butt joint |
| 2- avoid sharp angles |
| 3- maintain an even reduction of anatomical form |
| 4- these are minimum reductions. Strength and opacity will be increased with more tooth reduction |
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Cementation
An abbreviated technique follows.
Step 1: remove the provisional restoration. Clean and dry the site
Step 2:
verify the fit of the restoration utilizing a try-in paste or glycerin
Step
3: isolate the prepared tooth with a rubber dam and retainer
Step 4: apply
and light-cure the dental adhesive
Step 5: treat the internal aspects of the
restoration with a silane coupling agent
Step 6: apply an aesthetic resin
cement to the surface of the restoration
Step 7: seat the restoration and
remove gross excess cement
Step 8: light-cure the entire restoration from all
surfaces
Step 9: adjust and finish with fine diamonds and polishers
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