A nonsurgical endodontic treatment was completed on tooth 1.6 six months ago. The temporary restoration was lost two months ago. The tooth has no caries or fractures. All cusps are present but are weak and unsupported. What is the most appropriate management prior to placing a full gold crown?
Endodontic retreatment followed by a core build-up.
Removal of 4-5mm of coronal gutta-percha from all canals followed by a core build-up.
Post placement in the palatal canal followed by a core build-up.
Placing a bonded composite resin restoration to seal the access.
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