Root canal therapy combined with endoscopic sinus surgery for odontogenic sinusitis: Efficacy comparison in a cohort study

Table 1 Comparison of total effective rate between two groups of patients

Group	n	Cured	Improved	Ineffective	Effective rate
Control	63	27	26	10	84.13%
Observation	137	68	62	7	94.89%
χ2		6.455			6.165
P value		0.040			0.013

Table 2 Lund-Kennedy endoscopic score comparison (mean ± SD, points)

Group	n	Treatment	3 mo after treatment	6 mo after treatment
Control	63	5.84 ± 2.13	2.42 ± 1.51	1.98 ± 0.84
Observation	137	5.73 ± 2.05	1.57 ± 0.78	1.35 ± 0.71
t		0.348	5.249	5.495
P value		0.728	< 0.01	< 0.01

Table 3 Paranasal sinus Lund-Mackay score comparison (mean ± SD, points)

Group	n	Before treatment	3 mo after treatment	6 mo after treatment
Control	63	4.93 ± 2.32	2.16 ± 1.84	1.82 ± 0.91
Observation	137	4.75 ± 2.36	1.54 ± 0.72	1.37 ± 0.64
t		0.504	3.422	4.02
P value		0.613	< 0.01	< 0.01

Table 4 Comparison of rates of complications and recurrence between two groups

Group	n	Maxillary tooth ache	Facial numbness	Facial swelling	Dry and scabbed nasal cavity	Nasal mucosa thickening	Rate of complications	Recurrence rate
Control	63	4	0	1	1	0	9.52%	12.69%
Observation	137	3	1	4	0	1	6.56%	2.91%
χ2							0.592	6.650
P value							0.441	0.009