Evaluation of Metalloproteinase-8 Levels in Crevicular Fluid of Patients with Healthy Implants or Periodontitis

Table 1

Demographic and clinical characteristics of study population.

	Control	Mild periodontitis	Moderate periodontitis	Severe periodontitis	Implant
	(I)	(II)	(III)	(IV)	(V)
N	36	48	43	30	32
Age (years)
Mean ± SD	35 ± 8	38 ± 9	40 ± 9	42 ± 10	52 ± 16
Range	20–51	27–58	27–60	28–59	20–71
Gender
Male	13	18	21	18	15
Female	23	30	22	12	17
Total natural teeth
Mean ± SD	29 ± 3	28 ± 3	27 ± 3	26 ± 3	14 ± 11
Range	24–32	20–32	22–32	22–32	0–29
Total implants
Mean ± SD	0	0	0	0	6 ± 3
Range	—	—	—	—	1–12
PD (mm)
Mean ± SD	1.64 ± 0.61	3.34 ± 0.39	4.49 ± 0.23	5.55 ± 0.42	2.84 ± 0.57
Range	0.2–2.5	3-4	4-5	4–6	1.9–4
CAL (mm)
Mean ± SD	0.71 ± 1.20	1.14 ± 1.32	1.80 ± 1.60	6.48 ± 1.65	—
Range	0–4.5	0–4.5	0–6	1.5–10
GI (mm)
Mean ± SD	0.81 ± 0.98	1.27 ± 0.74	1.30 ± 0.6	1.67 ± 0.71	0.34 ± 0.55
Range	0–3	0–2	0–2	0–3	0–2

SD: standard deviation.