Post and Core
Endodontically treated teeth may require reinforcement.
- Posts retain the core build-up which is needed due to extensive loss of coronal tooth structure.
- Remaining dentinal structure will dictate if a post is indicated to compensate for extensive loss of coronal tooth structure.
- Aim to preserve as much coronal and radicular tooth structure as possible.
- Use a ferrule when using a post. An adequate ferrule is minimum 2 mm vertical height and 1 mm of dentin thickness.
- If an all-ceramic crown is chosen as the final restoration anteriorly, the colour and opacity of the post may lead to discolouration and shadowing of the crown, especially for an IPS e.max® restoration. Thus, opaquer would be critical if metal was used for strength.
||Metal post (opaquer on metal)
||Metal (alloy of choice)
||Acceptable – better with opaquer
||✓ ✓ ✓
||Universal except high aesthetics
||May need masking
||Can be bonded