Question 297 · LDEK · Post and core restorations
Select the correct sequence for preparing a tooth for an individual post and core crown:
- A. prepare the coronal part of the post for the crown, remove caries and old fillings, cut the crown thin walls perpendicularly, prepare the root canal, prepare the canal orifices, secure with a temporary filling.
- B. prepare the coronal part of the post for the crown, cut the crown thin walls perpendicularly, remove caries and old fillings, prepare the root canal, secure with a temporary filling.
- C. remove caries and old fillings, prepare the coronal part of the post for the crown, cut the crown thin walls perpendicularly, prepare the root canal, prepare the canal orifices, secure with a temporary filling.
- D. remove caries and old fillings, prepare the canal orifices, prepare the coronal part of the post for the crown, secure with a temporary filling.
- E. none of the answers is correct.
Hint
Begin with the step that shows how much sound tissue remains, then shape the crown part, then the canal, and finish with provisional protection.
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