Groups

Mean service life of restorations (SD) years

Mean plaque index (SD)

Mean gingival index (SD)

G1

2.45 (0.10)

2.25 (0.21)

G2

8.14 (0.65)

2.8 (0.22)

2.5 (0.27)

G3

9.17 (0.63)

2.5 (0.28)

2.25 (0.23)

G4

9.3 (0.65)

2.95 (0.10)

2.8 (0.24)