[Table/Fig-1]:

Brief history and clinical and radiographic findings relevant to the cases, *: electric pulp test (EPT) and heat test

Case No.	Age/Sex	Chief complaint	Relevant history	Teeth involved	Pulp Responsiveness Tests (before revascularization)*	Intraoral Periapical Radiograph (IOPA) finding
1.	27yrs/ M	Pain and swelling in relation to upper front tooth	H/o trauma in childhood	#21	Both tests non- responsive	Wide open root apex with periradicular radiolucency and very thin lateral dentinal walls in tooth #21[Table/Fig-2a].
2.	17 yrs/M	Pain in upper front teeth. Clinical examination revealed Grade-I mobility in teeth #11, #21 and #22 (Composite resin splinting of upper arch from teeth #13 to #23 was therefore,done).	H/o trauma 2 months back	#21, #11	#21, #11: Both tests non- responsive	Periradicular radiolucency and open apices around roots of teeth #21, #11[Table/Fig-3a].
3.	30 yrs/M	Discoloured upper front tooth.	H/o fall in childhood.	# 21	Both tests non- responsive	Completely open apex, very thin dentinal walls, periradicular radiolucency surrounding #21[Table/Fig-4a].
4.	18 yrs/F	Discoloured upper front tooth following orthodontic treatment.	NA	#22	Both tests non- responsive	an open apex with a large radiolucency involving #22 [Table/Fig-5a].