Table 2.
The trabecular bone structural parameters measured by using dental CBCT and micro-CT
| Group | 1 | 2 | 3 | 4 | |
|---|---|---|---|---|---|
| Density |
0.12 g/cm3 |
0.16 g/cm3 |
0.20 g/cm3 |
0.32 g/cm3 |
|
| |
Parameter |
Mean |
Mean |
Mean |
Mean |
| (unit) |
±SD (CV%) |
±SD (CV%) |
±SD (CV%) |
±SD (CV%) |
|
| dental CBCT |
BV/TV |
0.3813 |
0.4171 |
0.4495 |
0.5041 |
| (%) |
±0.0365 (9.58) |
±0.0298 (7.15) |
±0.0344 (7.65) |
±0.0346 (6.86) |
|
| BS/BV |
3.8478 |
4.3609 |
4.5422 |
5.4714 |
|
| (mm-1) |
±0.1903 (4.95) |
±0.2119 (4.86) |
±0.2842 (6.26) |
±0.3903 (7.13) |
|
| Tb.Th. |
1.0155 |
0.8774 |
0.8249 |
0.6434 |
|
| (mm) |
±0.0514 (5.06) |
±0.0390 (4.44) |
±0.0375 (4.55) |
±0.0313 (4.86) |
|
| Tb.Sp. |
1.8209 |
1.3698 |
1.1385 |
0.7184 |
|
| (mm) |
±0.0947 (5.20) |
±0.0356 (2.60) |
±0.0312 (2.74) |
±0.0288 (4.01) |
|
| micro-CT | BV/TV |
0.1603 |
0.1949 |
0.2589 |
0.3590 |
| (%) |
±0.0151 (9.42) |
±0.0065 (3.34) |
±0.0122 (4.72) |
±0.0056 (1.56) |
|
| BS/BV |
9.4327 |
10.4456 |
11.6841 |
11.4896 |
|
| (mm-1) |
±0.4077 (4.32) |
±0.2628 (2.52) |
±0.3627 (3.10) |
±0.1631 (1.42) |
|
| Tb.Th. |
0.4169 |
0.3734 |
0.3280 |
0.3123 |
|
| (mm) |
±0.0160 (3.83) |
±0.0117 (3.14) |
±0.0078 (2.37) |
±0.0037 (1.18) |
|
| Tb.Sp. |
2.2985 |
1.7038 |
1.0578 |
0.7064 |
|
| (mm) | ±0.2143 (9.32) | ±0.0920 (5.40) | ±0.0392 (3.71) | ±0.0532 (7.53) | |
SD, Standard deviation; CV, Coefficient of variation (SD/Mean); BV/TV, Bone volume fraction; BS/BV, Specific bone surface; Tb.Th., Trabecular thickness; Tb.Sp., Trabecular separation.