Adrenaline in pulp capping treatment of reversible pulpitis

Table 4 Baseline characteristics of the study patients

Variable	Ineffective, n = 13	Effective, n = 87	t/χ2	P value
Sex
Male	7 (53.85)	50 (57.47)	0.061	0.805
Female	6 (46.15)	37 (42.53)
Age in yr	47.92 ± 4.61	47.43 ± 4.13	0.393	0.695
Disease duration in mo	2.52 ± 1.38	2.24 ± 0.58	1.295	0.198
Site
Premolar	10 (76.92)	78 (89.66)	0.740	0.390
Molar tooth	3 (23.08)	9 (10.34)
Cold irritant pain
Yes	9 (69.23)	73 (83.91)	0.806	0.369
No	4 (30.77)	14 (16.09)
Heat tingling pain
Yes	10 (76.92)	74 (85.06)	0.116	0.733
No	3 (23.08)	13 (14.94)
Cold stimulation retards pain
Yes	7 (53.85)	38 (43.68)	0.151	0.698
No	6 (46.15)	49 (56.32)
Heat stimulation retards pain
Yes	8 (61.54)	42 (48.28)	0.796	0.372
No	5 (38.46)	45 (51.72)
Nocturnal pain
Yes	5 (38.46)	36 (41.38)	0.040	0.842
No	8 (61.54)	51 (58.62)
Percussion pain
Yes	7 (53.85)	38 (43.68)	0.472	0.492
No	6 (46.15)	49 (56.32)
Dental microorganisms
Lactobacillus	0 (0.00)	75 (86.21)	62.118	< 0.001
Streptococcus	7 (53.85)	7 (8.05)
Pseudomonas	4 (30.77)	3 (3.45)
other	2 (15.38)	2 (2.30)
Adrenaline use
Yes	2 (15.38)	48 (55.17)	5.659	0.017
No	11 (84.62)	39 (44.83)
Dental microorganisms, main Gram-positive aerobic bacteria
Staphylococcus aureus	2 (9.52)	37 (22.16)	1.124	0.289
Enterococcus mimicus	1 (4.76)	8 (4.79)	0.288	0.592
Colombian enterococcus	1 (4.76)	2 (1.20)	0.093	0.761
Main Gram-positive anaerobic bacteria
Peptostreptococcus anaerobius	4 (19.05)	5 (2.99)	7.319	0.007
Main Gram-negative anaerobic bacteria
Bacteroides fragilis	2 (9.52)	25 (14.97)	0.116	0.733
Prevotella melanogenes	2 (9.52)	36 (21.56)	1.012	0.314
Porphyromonas gingivalis	2 (9.52)	20 (11.98)	0.001	0.976
Fusobacterium nucleatum	5 (23.81)	10 (5.99)	8.069	0.005
Clostridium parvum	0 (0.00)	6 (3.59)	0.050	0.823