|  | Alveolar width (AW) | Change at the alveolar ridge (ΔAW) | Intragroup analysis (p value) | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Group | N° | bsl 1 | bsl 2 | 10 years | bsl 1→bsl 2 | bsl 2→10 years | bsl 1→10 years | bsl 1 vs bsl 2 | bsl 2 vs 10 years | bsl 1 vs 10 years |
 | Overall sites | |||||||||
A | 30 | 10.9(2.3) | 8.4(2.1) | 9.4(1.6) | − 2.7(0.9) | + 1.3(1.1) | − 1.3(1.6) | < 0.0001 | < 0.0001 | < 0.0001 |
B | 24 | 10.6(2.0) | 7.1(1.1) | 9.0(1.5) | − 3.9(1.4) | + 1.8(1.1) | − 2.2(1.6) | < 0.0001 | < 0.0001 | < 0.0001 |
Intergroup analysis (p value*) | Â | 0.8616 | 0.0032 | 0.1296 | < 0.0001 | 0.0688 | 0.0863 | Â | Â | Â |
Effect of site (p value^) | Â | < 0.0001 | < 0.0001 | 0.0099 | 0.0176 | 0.6093 | 0.0086 | Â | Â | Â |
Effect of gender (p value^) | Â | 0.0442 | 0.0102 | 0.0448 | 0.7096 | 0.8234 | 0.8236 | Â | Â | Â |
 | Premolar | |||||||||
A | 16 | 9.8(0.7) | 7.1(1.3) | 9.1(1.4) | − 2.8(1.0) | + 1.5(1.5) | − 1.3(1.7) | 0.0004 | 0.0004 | 0.0004 |
B | 13 | 10.2(0.8) | 6.7(0.7) | 8.3(1.4) | − 3.3(1.1) | + 1.7(1.4) | − 1.5(1.5) | 0.0002 | 0.0002 | 0.0002 |
Intergroup analysis (p value*) | Â | 0.5524 | 0.1349 | 0.2816 | 0.0562 | 0.8434 | 0.2190 | Â | Â | Â |
 | Molar | |||||||||
A | 14 | 12.1(0.3) | 9.1(0.9) | 9.9(1.8) | − 2.7(0.5) | + 1.0(1.7) | − 1.8(2.0) | 0.0001 | 0.0001 | 0.0234 |
B | 11 | 12.1(0.6) | 7.5(1.6) | 9.4(1.2) | − 4.6(0.6) | + 1.9(0.7) | − 2.7(1.1) | 0.0009 | 0.0009 | 0.0009 |
Intergroup analysis (p value*) | Â | 1 | 0.0005 | 0.2743 | < 0.0001 | 0.0061 | 0.2972 | Â | Â | Â |
 | Premolar vs molar | |||||||||
A (p value*) | Â | < 0.0001 | < 0.0001 | 0.0209 | 0.06772 | 0.0612 | 0.0843 | Â | Â | Â |
B (p value*) | Â | < 0.0001 | 0.0594 | 0.0395 | 0.0003 | 0.3102 | 0.0137 | Â | Â | Â |