What are the important principles required to treat a molar with a complicated fused root?
Patient: 66-year-old woman with high blood pressure, high cholesterol, and chronic sinusitis
Chief Complaint: The patient reported slight constant pain, heat sensitivity, and slight pain to biting (mandibular first molar bridge abutment, #19).
Dental History: Bridge Abutment (#19) with pin build-up constructed over 20 years ago