Table 2.
Mean BD and 95% confidence interval (C.I.) for defect outcomes for all categorical variables. p-value determined with Mann–Whitney U-test or Kruskal–Wallis test (tooth location).
| L1 | L3 | L5 | L7 | Vmax | Hmax | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean (%) | 95% C.I. | p | Mean (%) | 95% C.I. | p | Mean (%) | 95% C.I. | p | Mean (%) | 95% C.I. | p | Mean (mm) | 95% C.I. | p | Mean (mm) |
95% C.I. | p | |
| Treatment group | ||||||||||||||||||
| Natural healing | 21.99 | 11.20–32.79 | 0.011 | 17.52 | 7.89–27.16 | 0.009 | 14.00 | 5.41–22.59 | 0.006 | 12.22 | 4.19–20.25 | 0.072 | 3.16 | 1.68–4.65 | 0.030 | 2.01 | 1.16–2.86 | 0.005 |
| TC | 45.83 | 35.86–55.79 | 39.40 | 30.58–48.22 | 30.74 | 22.67–38.81 | 18.64 | 11.75–25.52 | 4.61 | 3.52–5.70 | 3.85 | 2.99–4.70 | ||||||
| Jaw | ||||||||||||||||||
| Lower jaw | 39.25 | 28.27–50.22 | 0.245 | 35.00 | 24.90–45.09 | 0.073 | 30.86 | 21.95–39.76 | 0.011 | 21.63 | 13.40–29.87 | 0.015 | 5.02 | 3.68–6.35 | 0.022 | 3.59 | 2.67–4.51 | 0.098 |
| Upper jaw | 32.63 | 21.78–43.48 | 25.85 | 16.54–35.17 | 17.31 | 9.21–25.42 | 10.90 | 4.48–17.31 | 3.02 | 1.85–4.19 | 2.53 | 1.67–3.38 | ||||||
| Gender | ||||||||||||||||||
| Male | 35.46 | 24.17–46.75 | 0.982 | 29.51 | 19.76–39.25 | 0.899 | 23.93 | 15.36–32.51 | 0.796 | 17.42 | 9.12–25.72 | 0.673 | 4.14 | 2.88–5.40 | 0.604 | 3.36 | 2.39–4.32 | 0.354 |
| Female | 35.95 | 25.28–46.63 | 30.67 | 20.91–40.43 | 23.39 | 14.60–32.18 | 14.60 | 7.92–21.28 | 3.80 | 2.50–5.10 | 2.71 | 1.89–3.53 | ||||||
| Apical radio-translucency | ||||||||||||||||||
| Yes | 37.68 | 29.17–46.19 | 0.439 | 30.98 | 23.52–38.44 | 0.591 | 24.18 | 17.44–30.93 | 0.662 | 16.39 | 10.39–22.39 | 0.822 | 4.19 | 3.11–5.28 | 0.193 | 3.20 | 2.45–3.94 | 0.172 |
| No | 29.11 | 11.15–47.07 | 27.24 | 10.28–44.20 | 21.82 | 7.19–36.45 | 14.31 | 3.35–25.26 | 2.85 | 0.93–4.77 | 2.18 | 0.79–3.58 | ||||||
| Tooth location | ||||||||||||||||||
| Anterior | 27.81 | 11.92–43.70 | 0.314 | 25.69 | 11.72–39.65 | 0.571 | 20.17 | 7.36–32.99 | 0.328 | 13.85 | 2.80–24.90 | 0.618 | 2.53 | 1.00–4.07 | 0.137 | 2.30 | 0.93–3.68 | 0.105 |
| Pre-molar | 37.80 | 25.56–50.05 | 30.70 | 19.72–41.68 | 23.39 | 13.82–32.95 | 14.64 | 5.69–23.59 | 4.65 | 3.07–6.23 | 3.83 | 2.67–5.00 | ||||||
| Molar | 39.89 | 26.77–53.00 | 33.29 | 21.31–45.27 | 27.10 | 16.37–37.84 | 18.15 | 9.88–26.43 | 4.25 | 2.82–5.69 | 2.89 | 2.00–3.78 | ||||||
Notes: Horizontal bone loss on level −1 (L1), −3 (L3), −5 (L5) and −7 mm (L7) from the marginal bone of the socket; Vmax, the greatest vertical defect from marginal to apical of the socket; Hmax, the greatest horizontal defect on corresponding level; TC, Terra-Cortril.