Table 1.

Patient demographic, health history, and treatment summary

ID	C1	ND1	ND2	ND3
Age, y	72	55	92	54
Gender	Male	Female	Male	Male
Tooth	13 (upper left premolar)	27 (lower right canine)	6 (upper right canine)	23 (lower left incisor)
Medical history	Hypertension, diabetes, hypercholesterolemia, no prescription medications reported	No major medical conditions reported	Taking synthroid (thyroid hormone) for hypothyroidism	Taking Triumeq (HIV/AIDS treatment)
Diagnosis	Pulp necrosis/AAP	Pulp necrosis/AAP	Pulp necrosis/chronic apical abscess	Pulp necrosis/AAP
Preoperative characteristics	History of spontaneous pain	History of pain reported	Spontaneous pain	No pain reported
Operative issues	No complications reported	No complications reported	No complications reported	No complications reported
Postoperative characteristics	No pain or symptoms reported	No pain or symptoms reported	No pain or symptoms reported	No pain or symptoms reported
3-mo follow-up	NA	No pain or symptoms reported	No pain or symptoms reported	NA
6-mo follow-up	No pain or symptoms reported	No pain or symptoms reported	—	—

NA, not analyzed.