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. 2018 Dec;38(6):554–562. doi: 10.14639/0392-100X-1839

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Società Italiana di Otorinolaringoiatria e Chirurgia Cervico-Facciale, Rome, Italy

This is an Open Access article distributed under the terms of the Creative Commons Attribution NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0), which permits for noncommercial use, distribution, and reproduction in any digital medium, provided the original work is properly cited and is not altered in any way. For details, please refer to https://creativecommons.org/licenses/by-nc-nd/4.0/

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Fig. 4. — Preoperative and postoperative hearing results of the native-tissue group and MegaDerm^® group measured at 1 (A, native-tissue group, n = 33; B, MegaDerm^® group, n = 27) and 6 months (C, native-tissue group, n = 17; D, MegaDerm^® group, n = 17) postoperatively. The air-conduction thresholds significantly improved in both groups, whereas the bone-conduction thresholds remained stable. The preoperative and postoperative air- and bone-conduction thresholds were not significantly different between the two groups (p = 0.266 and p = 0.445 for preoperative and postoperative air-conduction thresholds at 1 month postoperatively; p = 0.548 and p = 0.584 for preoperative and postoperative bone-conduction thresholds at 1 month postoperatively; p = 0.096 and p = 0.252 for preoperative and postoperative air-conduction thresholds at 6 months postoperatively; p = 0.284 and p = 0.682 for preoperative and postoperative bone-conduction thresholds at 6 months postoperatively).