Table 3.
Marginal bone level (MBL), changes in MBL and average bone to implant contact ratio comparison between customized abutment group and prefabricated abutment group.
| Baseline | Loading | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|
| MBL | Mean ± SD (mm) | |||||
| CA (n = 36) | 0.4 ± 0.52 | 0.61 ± 0.62 | 0.84 ± 0.71 | 0.83 ± 0.67 | 0.91 ± 0.79 | |
| PA (n = 28) | 0.3 ± 0.4 | 0.6 ± 0.45 | 0.66 ± 0.59 | 0.78 ± 0.55 | 0.87 ± 0.64 | |
|
P Value |
0.43 |
0.94 |
0.28 |
0.72 |
0.83 |
|
| Changes in MBL | Mean ± SD (mm) | |||||
| CA (n = 36) | 0.21 ± 0.31 | 0.45 ± 0.47 | 0.43 ± 0.45 | 0.51 ± 0.66 | ||
| PA (n = 28) | 0.29 ± 0.38 | 0.36 ± 0.43 | 0.47 ± 0.45 | 0.57 ± 0.51 | ||
|
P Value |
0.32 |
0.45 |
0.74 |
0.71 |
||
| Average BIC | Mean ± SD (%) |
|||||
| CA (n = 36) | 96.05 ± 5.23 | 94 ± 6.25 | 91.71 ± 7.03 | 91.79 ± 6.74 | 91 ± 8.05 | |
| PA (n = 28) | 97.14 ± 3.92 | 94.35 ± 4.31 | 93.72 ± 5.71 | 92.6 ± 5.45 | 91.73 ± 6.33 | |
| P Value | 0.37 | 0.8 | 0.22 | 0.61 | 0.7 | |
MBL: marginal bone level, BIC: bone-to-implant contact ratio, CA: customized abutment, PA: prefabricated abutment, 1Y: 1-year after loading, 3Y: 3-year after loading, 5Y: 5-year after loading.