Table 6.
Logistic regression for the effects of the demographic characteristics, treatment strategies, furcation–ABC relationship, and AIDR in achieving a better outcome of FDR in the combined furcation–angular defect group.
| LFI > 1.03 mm | RLI > 40% | ALF > 1.30 mm | ARL > 30% | IRI > 1.011 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| OR [Range] | p | OR [Range] | p | OR [Range] | p | OR [Range] | p | OR [Range] | p | |
| ≥ 52 year-old vs. < 52 year-old | 1.66 [0.48–5.73] | 0.424 | 0.46 [0.15–1.39] | 0.168 | 1.03 [0.32–3.29] | 0.965 | 0.54 [0.18–1.68] | 0.290 | 1.11 [0.30–4.13] | 0.877 |
| Male vs. female | 2.73 [0.79–9.37] | 0.111 | 1.60 [0.55–4.64] | 0.387 | 0.65 [0.21–2.03] | 0.456 | 0.95 [0.32–2.84] | 0.930 | 1.47 [0.41–5.29] | 0.558 |
| DBBM vs. autograft/FDBA | 1.79 [0.52–6.15] | 0.357 | 1.40 [0.44–4.43] | 0.565 | 1.62 [0.49–5.37] | 0.430 | 1.18 [0.37–3.80] | 0.778 | 1.33 [0.39–4.53] | 0.653 |
| EMD vs. CM | 2.73 [0.78–9.61] | 0.118 | 1.68 [0.56–5.04] | 0.357 | 1.58 [0.49–5.11] | 0.447 | 1.83 [0.59–5.69] | 0.297 | 2.20 [0.63–7.65] | 0.217 |
| Degree II FI vs. degree III FI | NA | NA | 1.95 [0.24–15.99] | 0.535 | NA | NA | NA | NA | NA | NA |
| First molar vs. second molar | 0.58 [0.13-2.57] | 0.475 | 0.41 [0.12–1.41] | 0.156 | 0.36 [0.09–1.38] | 0.136 | 0.52 [0.15–1.83] | 0.308 | 1.41 [0.43–4.62] | 0.573 |
| FF-ABC ≥ 0.5 mm vs. <0.5 mm | 0.87 [0.23-3.33] | 0.835 | 0.60 [0.17–2.10] | 0.421 | 1.08 [0.29–4.02] | 0.906 | 0.86 [0.24–3.10] | 0.816 | 2.99 [0.64–14.01] | 0.166 |
| BF-ABC ≥ 0.5 mm vs. <0.5 mm | 0.13 [0.02-1.06] | 0.057 | 1.36 [0.30–6.21] | 0.693 | 0.86 [0.17–4.23] | 0.849 | 1.58 [0.34–7.38] | 0.558 | 0.44 [0.10–2.00] | 0.288 |
| AIDR > 0 mm vs. AIDR ≤0 mm | 2.98 [0.90-9.82] | 0.073 | 1.70 [0.55–5.26] | 0.357 | 5.13 [1.56–16.84] | 0.007 ** | 3.79 [1.18–12.15] | 0.025 * | 1.64 [0.48–5.56] | 0.432 |
Abbreviations: LFI: the linear furcation regeneration improvement; RLI: the ratio of LFI; ALF: the adjusted LFI; ARL: the adjusted ratio of LFI; IRI: the improvement of radiographic intensity; BRG: the bone replacement graft; FDBA: freeze-dried bone matrix; DBBM: deproteinized bovine bone matrix; CM: collagen membrane; EMD: enamel matrix derivatives; FF-ABC: the distance between FF and ABC; AIDR: the adjacent intrabony defect regeneration; NA: not applicable due to very limited pairs for the comparison. Significant difference: * p < 0.05, ** p < 0.01.