Table 3.
Regression analysis with the clinical attachment level (CAL) gain (mm), probing pocket depth (PPD) reduction (mm), and (LDF) linear defect fill (mm).
| Parameter | Regression Coefficient | Standard Error | Confidence Interval | p | |
|---|---|---|---|---|---|
| Lower | Upper | ||||
| CAL gain from baseline to 1 year as dependent variable. R2 = 0.5649 | |||||
| Intercept | 5.6065 | 3.5427 | 7.0054 | 4.2077 | 0.1319 |
| Gender | 0.3713 | 0.6305 | 0.6202 | 0.1223 | 0.5636 |
| Age | −0.0308 | 0.0570 | −0.008 | −0.0534 | 0.5955 |
| Surgical procedure (test vs. control) | −0.1939 | 0.5223 | 0.0123 | −0.4001 | 0.7150 |
| Tooth type (incisors, canines, premolars vs. molars) | −0.3964 | 0.3969 | −0.239 | −0.5532 | 0.3319 |
| Tooth position (upper vs. lower) | 1.0250 | 0.5503 | 1.2423 | 0.8077 | 0.0798 |
| FMPS | −0.0826 | 0.0581 | −0.059 | −0.1056 | 0.1735 |
| FMBS | 0.0778 | 0.0456 | 0.0959 | 0.0598 | 0.1062 |
| PPD | −0.1706 | 0.3491 | −0.0328 | −0.3085 | 0.6312 |
| DD | −0.0306 | 0.2670 | 0.0748 | −0.1360 | 0.9100 |
| RVG angle | −0.1669 | 0.0474 | −0.1482 | −0.1856 | 0.0026 * |
| PPD reduction from baseline to 1 year as dependent variable. R2 = 0.6335 | |||||
| Intercept | 4.2998 | 2.4676 | 5.2742 | 3.3255 | 0.0984 |
| Gender | −0.3789 | 0.5490 | −0.162 | −0.5957 | 0.4988 |
| Age | −0.0848 | 0.0486 | −0.065 | −0.1041 | 0.0982 |
| Surgical procedure (test vs. control) | 0.1001 | 0.4756 | 0.2879 | −0.0877 | 0.8356 |
| Tooth type (incisors, canines, premolars vs. molars) | −0.3512 | 0.3612 | −0.2085 | −0.4939 | 0.3437 |
| Tooth position (upper vs. lower) | 0.4019 | 0.5002 | 0.5994 | 0.2044 | 0.4321 |
| FMPS | 0.0029 | 0.0527 | 0.0237 | −0.0179 | 0.9566 |
| FMBS | 0.0662 | 0.0414 | 0.0826 | 0.0498 | 0.1274 |
| CAL | 0.4270 | 0.1965 | 0.5046 | 0.3494 | 0.0434 * |
| DD | 0.1468 | 0.2418 | 0.2423 | 0.0513 | 0.5514 |
| RVG angle | −0.0771 | 0.0407 | −0.061 | −0.0932 | 0.074 |
| LDF from baseline to 1 year as the dependent variable. R2 = 0.7145 | |||||
| Intercept | 6.3908 | 3.0015 | 7.5760 | 5.2057 | 0.0473 |
| Gender | −0.1927 | 0.5437 | 0.0219 | −0.4074 | 0.7270 |
| Age | −0.0066 | 0.0504 | 0.0133 | −0.0265 | 0.8969 |
| Surgical procedure (test vs. control) | 0.5582 | 0.4464 | 0.7345 | 0.3820 | 0.2270 |
| Tooth type (incisors, canines, premolars vs. molars) | −0.6148 | 0.3317 | −0.4838 | −0.7459 | 0.0803 |
| Tooth position (upper vs. lower) | −0.0079 | 0.4854 | 0.1837 | −0.1996 | 0.9871 |
| FMPS | 0.0125 | 0.0504 | 0.0324 | −0.0073 | 0.8066 |
| FMBS | 0.0000 | 0.0392 | 0.0155 | −0.0154 | 0.9992 |
| PPD | −0.1305 | 0.3070 | −0.0093 | −0.2518 | 0.6756 |
| CAL | 0.3715 | 0.2162 | 0.4569 | 0.2861 | 0.1029 |
| RVG angle | −0.1191 | 0.0386 | −0.1038 | −0.1343 | 0.0064 * |
FMPS—full-mouth plaque score, FMBS—full-mouth bleeding score, PPD—probing pocket depth, DD—radiographic defect depth, CAL—clinical attachment level, * Statistically significant (p ≤ 0.05).