A patient complains of the discolouration of an unrestored maxillary central incisor. Radiographically, the pulp chamber and the root canal space are obliterated, there is no evidence of caries and the periodontal ligament space appears normal. An external bleaching procedure has not been successful. The most appropriate management would be to
fabricate a porcelain veneer.
fabricate a porcelain fused to metal crown.
perform nonsurgical root canal therapy and fabricate a porcelain veneer.
perform nonsurgical root canal therapy and fabricate a post retained porcelain fused to metal crown.
perform nonsurgical root canal therapy and nonvital bleaching.
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