Group | NO. | GTR (%) | FN preservation | FN function 2Â weeks after surgery (%) | ||
---|---|---|---|---|---|---|
(%) | H-B I or II | H-B II | H-B IV–VI | |||
Tradition | 503 | 402 (79.9) | 438 (87.1) | 132 (26.2) | 271 (53.9) | 100 (19.9) |
MDC | 154 | 154 (100.0) | 151 (98.1) | 84 (54.5) | 37 (24.0) | 33 (21.4) |
Total | 657 | 556 (84.6) | 589 (89.6) | 216 (32.9) | 308 (46.9) | 133 (20.2) |