What is the recommended course of action for a patient with a mandibular second molar associated with radiolucency and mental nerve paraesthesia?

In cases where a mandibular second molar is associated with radiolucency and mental nerve paraesthesia, the recommended course of action is to conduct a thorough assessment, which includes a blood test and possibly a biopsy. The presence of radiolucency suggests that there may be an underlying pathological process, such as an infection or a cyst. Additionally, mental nerve paraesthesia indicates that there could be nerve involvement due to the proximity of the tooth roots to the nerve canal.

A blood test can help rule out systemic infections or conditions that could be affecting the patient's oral health. The biopsy serves to provide a definitive diagnosis of the lesion, especially if there's a suspicion of a more serious condition like a cyst or a tumor. Extraction may be necessary, but it is important to gather all relevant information before proceeding to ensure the right course of treatment and to manage any potential complications effectively.

While the other options involve extraction or treatment measures, they do not encompass the diagnostic steps necessary in this scenario. For instance, extraction and curettage might address a localized issue but wouldn't provide the necessary insight into the nature of the radiolucency. Root canal treatment and antibiotics could alleviate symptoms but would ignore the potential underlying pathology. Finally, extracting and packing with varnish