Research Article
The Effect of Hydroxyapatite Nanocrystals on Osseointegration of Titanium Implants: An In Vivo Rabbit Study
Table 3
Mean removal torque values and statistical comparisons.
| | Number | Mean (SD)·Ncm | Median (min; max) |
| Three weeks | | | | Noncoated | 10 | 32.4 (8.1)
| 33.5 (16; 42) | HA coated | 10 | 27.8 (9.1)
| 30.5 (10; 39) | Twelve weeks | | | | Noncoated | 9 | 49.3 (11.1)
| 54 (32; 62) | HA coated | 9 | 38.2 (13.4)
| 40 (21; 61) |
| Distribution of the removal torque differences between three weeks and twelve weeks. | Rabbit | Difference (noncoated-HA coated) | Rabbit | Difference (noncoated-HA coated) |
| 1 | 19 | 11 | 1 | 2 | 8 | 12 | −3 | 3 | 7 | 13 | 2 | 4 | 13 | 14 | −7 | 5 | −15 | 15 | 30 | 6 | 3 | 16 | 8 | 7 | −4 | 17 | 22 | 8 | 3 | 18 | 11 | 9 | −3 | 19 | — | 10 | 15 | 20 | 36 |
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