Table 1 Alterations (mm) of bone width of different time-points (2 and 8 weeks after tooth extraction) at different levels (coronal, middle and apical). The reduction in bone width was calculated by comparing the retained sites with the neighboring extracted sites

Control

0.53 ± 0.04

0.15 ± 0.05

0.05 ± 0.02

1.89 ± 0.05

0.32 ± 0.08

0.06 ± 0.02

DBBM

0.18 ± 0.05^a

0.10 ± 0.04

0.04 ± 0.01

0.19 ± 0.05^a

0.12 ± 0.04^a

0.05 ± 0.01

DBBM+i-PRF

0.15 ± 0.02^a

0.11 ± 0.01

0.03 ± 0.02

0.16 ± 0.01^a

0.12 ± 0.01^a

0.04 ± 0.02

GNPs

0.16 ± 0.02^a

0.10 ± 0.02

0.03 ± 0.02

0.18 ± 0.03^a

0.11 ± 0.02^a

0.04 ± 0.02

GNPs+i-PRF

0.16 ± 0.03^a

0.13 ± 0.01

0.03 ± 0.02

0.16 ± 0.02^a

0.14 ± 0.01^a

0.04 ± 0.01

p-value

<0.01

0.40

0.53

<0.01

<0.01

0.60