Nonsurgical periodontal-therapy improves glycosylated hemoglobin levels in pre-diabetic patients with chronic periodontitis

Table 6 Mean difference (mean ± SD) in periodontal parameters from baseline to fourth month re-evaluation for case and control group

Parameters	Mean difference in case group	Mean difference in control group	P value
MGI	1.13 ± 0.32	-0.006 ± 0.02	0.000a
PI	0.75 ± 0.21	-0.0003 ± 0.014	0.000a
CI	1.73 ± 0.43	-0.017 ± 0.05	0.000a
BOP (%)	40.39 ± 13.48	-0.41 ± 0.77	0.000a
PPD (mm)	0.56 ± 0.16	-0.01 ± 0.006	0.000a
Sites with PD ≤ 3 mm (%)	-21.89 ± 10.10	0.08 ± 0.46	0.000a
Sites with PD 4-6 mm (%)	20.29 ± 10.10	0.05 ± 0.54	0.000a
Sites with PD ≥ 7 mm (%)	1.28 ± 1.75	-0.054 ± 0.20	0.000a
CAL (mm)	0.47 ± 0.19	-0.001 ± 0.019	0.000a
Sites with CAL 1-2 mm (%)	-15.59 ± 11.53	0.078 ± 0.42	0.000a
Sites with CAL 3-4 mm (%)	7.99 ± 13.25	0.093 ± 0.43	0.000a
Sites with CAL ≥ 5 mm (%)	7.16 ± 4.79	-0.13 ± 0.36	0.000a

^aP value ≤ 0.05. MGI: Modified gingival index; PI: Plaque index; CI: Calculus index; BOP: Bleeding on probing; PPD: Probing pocket depth; CAL: Clinical attachment loss.