Survival of endodontically treated permanent teeth among children: a retrospective cohort study

BMC Oral Health

Table 2 Record of untoward events of the endodontically treated teeth (ETT)

N = 63	Untoward event		Actual treatment received
29	Planned for extraction^a	Non-restorable = 15	Extraction = 8
		Orthodontics = 7	Extraction = 7
		Unknown = 7^b	Extraction = 7
24	Signs and symptoms	Extraction = 14^a	Extraction = 11
		Retreatment = 6^c	Retreatment = 5
		Apical surgery = 2^d	Apical surgery = 1
		Other = 2
8	Planned for retreatment^c	Retreatment = 7 (1 later extracted)
8	Planned for retreatment^c	Extraction = 1
2	Planned for apical surgery^d	Apical surgery = 2

^a33 ETT were extracted from 43 that required extraction (2 more ETT were extracted from retreatment group)
^bETT not present on posttreatment radiographs with no record of extraction in patient chart (extracted at another clinic)
^c12 ETT were retreated from 14 ETT that required retreatment
^d3 ETT had periapical surgery from 4 ETT that required surgery

ISSN: 1472-6831