Table 2.
Descriptive statistics for autologous dental material group (N = 22)
| Variables | Test: distribution | Central tendency | Range skewness |
Dispersion | |||||
|---|---|---|---|---|---|---|---|---|---|
| Skewness | Kurtosis | Shapiro-wilk p-value |
Mean | Median | Kurtosis | Shapiro-wilk p-value |
|||
| HL – W0 | 1.37 | 3.24 | .036* | 8.51 | 8.25 | 6.6–12.8 | 1.38 | 1.73 | |
| Socket size | VL – W0 | .66 | .17 | .491 NS | 11.96 | 11.55 | 9.1–16.8 | 1.97 | 2.93 |
| HL-BBC – W0 | 1.75 | 5.54 | .005* | 1.51 | 1.40 | .0–5.3 | 1.12 | 1.10 | |
| VL-BBC1 – W0 | .06 | -1.13 | .184 NS | 4.17 | 4.10 | 3.2–5.4 | .65 | 1.08 | |
| VL-BBC3 – W0 | − .77 | 1.61 | .323 NS | 3.97 | 4.00 | 2.0–5.2 | .71 | 1.05 | |
| VL-BBC5 – W0 | .00 | -1.03 | .276 NS | 3.72 | 3.80 | 2.8–4.7 | .58 | .92 | |
| HL – W8 | 2.14 | 6.83 | .001* | 7.80 | 7.80 | 6.2–12.6 | 1.36 | 1.58 | |
| VL – W8 | 1.32 | 3.35 | .049* | 11.06 | 10.90 | 8.8–15.8 | 1.53 | 1.60 | |
| HL-BBC – W8 | 1.31 | 4.47 | .015* | 1.38 | 1.45 | .0–3.9 | .78 | .80 | |
| VL-BBC1 – W8 | − .60 | .51 | .271 NS | 3.66 | 3.75 | 2.2–4.7 | .62 | .83 | |
| VL-BBC3 – W8 | − .87 | .85 | .178 NS | 3.69 | 3.80 | 2.1–4.6 | .60 | .80 | |
| VL-BBC5 – W8 | − .58 | .14 | .395 NS | 3.54 | 3.70 | 1.8–4.7 | .72 | .95 | |
| HL – W16 | 2.07 | 7.00 | .001* | 7.44 | 7.05 | 5.3–12.6 | 1.46 | 1.68 | |
| VL – W16 | 1.54 | 3.62 | .015* | 10.75 | 10.40 | 8.7–15.7 | 1.56 | 1.75 | |
| HL-BBC – W16 | 1.41 | 4.51 | .020* | 1.29 | 1.20 | .0–3.7 | .74 | .85 | |
| VL-BBC1 – W16 | − .43 | − .11 | .286 NS | 3.51 | 3.60 | 2.2–4.5 | .63 | .90 | |
| VL-BBC3 – W16 | − .54 | .69 | .424 NS | 3.54 | 3.60 | 2.0–4.5 | .60 | .75 | |
| VL-BBC5 – W16 | − .21 | − .35 | .863 NS | 3.44 | 3.60 | 2.0–4.6 | .67 | .93 | |
| Bone density in Hounsfield units | CORONAL – W0 | .40 | -1.22 | .047* | 1282.14 | 1242.50 | 1017.2–1567.7 | 178.70 | 304.73 |
| MEDIAL – W0 | − .05 | -1.25 | .170 NS | 1305.39 | 1351.25 | 1058.0–1589.0 | 160.08 | 303.25 | |
| APICAL – W0 | -1.06 | 2.69 | .067 NS | 1210.75 | 1214.15 | 547.2–1571.1 | 220.13 | 334.93 | |
| CORONAL – W8 | -1.39 | 2.57 | .024* | 1152.74 | 1172.95 | 512.7–1456.1 | 215.90 | 227.18 | |
| MEDIAL – W8 | − .13 | .58 | .612 NS | 1268.05 | 1239.75 | 911.5–1551 | 148.60 | 145.50 | |
| APICAL – W8 | .52 | .16 | .581 NS | 1158.85 | 1146.90 | 925.0–1432.2 | 127.25 | 147.75 | |
| CORONAL – W16 | − .52 | .17 | .464 NS | 1270.23 | 1295.25 | 779.4–1597.7 | 210.11 | 231.53 | |
| MEDIAL – W16 | − .26 | − .64 | .369 NS | 1326.86 | 1305.25 | 893.5–1600.0 | 197.40 | 331.88 | |
| APICAL – W16 | -1.23 | 3.17 | .075NS | 1198.70 | 1204.95 | 478.3–1600.0 | 234.80 | 281.25 | |
NS = non-significant deviation (p>.05), the data are normally distributed
* = significant but slight deviation (p<.05); the data tend to a normal distribution
HL: horizontal line; VL: vertical line; BBC, BBC1, BBC3 and BBC5: buccal cortical bone crest and at 1, 3 and 5 mm from the crest respectively; W0, W8 and W16: baseline and weeks 8 and 16 respectively. See also Figure 2