Prognostic Factors of Combined Periodontal and Endodontic Lesions: A Retrospective Study

Table 3

Comparison of periodontal clinical indicators between effective and ineffective teeth .

Characteristics	Clinical index	Effective tooth	Invalid tooth
Before treatment	PD	5.07 ± 1.25	4.64 ± 0.75
	CAL	3.25 ± 0.46	3.74 ± 0.24
	SBI	4.35 ± 0.95	4.18 ± 1.06
	OHI-S	3.15 ± 0.16	3.47 ± 0.32
3 months after treatment	PD	3.56 ± 1.01	3.74 ± 1.48
	CAL	2.67 ± 0.75	2.53 ± 1.01
	SBI	0.76 ± 0.12	1.25 ± 0.86
	OHI-S	1.25 ± 0.48	1.67 ± 0.47
6 months after treatment	PD	2.82 ± 1.08	3.21 ± 1.21
	CAL	1.64 ± 0.76	1.82 ± 1.02
	SBI	0.58 ± 0.32	0.92 ± 0.42
	OHI-S	0.72 ± 0.13	1.02 ± 0.72