表 3. 2组术后肿胀程度的频率分布.
Tab 3 Frequency distribution of postoperative swelling of two groups
| 组别 | 无肿胀 | 轻度肿胀 | 中度肿胀 | 重度肿胀 |
| CGF | 3/21.4 | 8/57.1 | 3/21.4 | 0/0 |
| 胶原膜 | 1/7.1 | 5/35.7 | 5/35.7 | 3/21.4 |
n/%
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