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Table 4 Reduction of maximum PD (mm)

From: Clinical outcomes following surgical treatment of peri-implantitis at grafted and non-grafted implant sites: a retrospective analysis

Group

Patient level

Implant level

Mean

SD

Median

Min.

Max.

Mean

SD

Median

Min.

Max.

Non-grafted sites

2.20

2.22

2.0

−4.0

6.0

2.10

2.35

2.0

−4.0

6.0

Grafted sites

1.57

1.54

1.0

−1.0

4

1.31

2.18

1.5

−4.0

4.0

  1. No significant difference between the groups was observed (patient level p = 0.968, implant level p = 1, chi-square test)