Comparative evaluation of pain perception with a new needle-free system and dental needle method in children: a randomized clinical trial

Table 2 Tooth number distributions according to the treatments and anesthesia types

Tooth Number	Filling		P^a	Pulpotomy		P^a	Whole Sample		P^a
Tooth Number	Needle-free system	Dental Needle Method	P^a	Needle-free system	Dental Needle Method	P^a	Needle-free system	Dental Needle Method	P^a
54-64^b	4(26,7)	2(14,3)	0.550	4(26,7)	4(28,6)	0.589	8(26,7)	6(21,4)	0.336
55-65^c	5(33,3)	7(50)		4(26,7)	4(28,6)		9(30)	11(39,3)
74-84^d	3(20)	4(28,6)		2(13,3)	4(28,6)		5(16,7)	8(28,6)
75-85^e	3(20)	1(7,1)		5(33,3)	2(14,3)		8(26,7)	3(10,7)

^aPearson Chi Square, n(%); ^bRight primary maxillary first molar-Left primary maxillary first molar; ^cRight primary maxillary second molar-Left primary maxillary second molar; ^dLeft primary mandibular first molar-Right primary mandibular first molar; ^eLeft primary mandibular second molar-Right mandibular primary second molar

ISSN: 1471-2253