In a case where a maxillary central incisor has undergone endodontic therapy but still presents with pain, what is the recommended treatment for an adjacent tooth?

In cases where a maxillary central incisor has had endodontic therapy but continues to exhibit pain, it's crucial to evaluate the adjacent tooth for potential issues. The recommended treatment for the adjacent tooth would typically involve performing endodontic therapy on it.

This approach is warranted because untreated or new endodontic issues in the adjacent tooth may be responsible for the pain experienced by the patient. Assessment could reveal that the adjacent tooth has conditions such as pulpitis or necrosis that require treatment. By conducting endodontic treatment on the adjacent tooth, it addresses any potential sources of infection or pain, thereby alleviating discomfort for the patient.

Observation or no treatment could lead to worsening of the condition if the adjacent tooth is indeed the source of the pain. Likewise, extraction of the adjacent tooth might not be necessary unless it's deemed non-restorable or completely compromised. Thus, performing endodontic treatment on the adjacent tooth is the most proactive option to ensure both the tooth's longevity and the patient's comfort.