It appears that the granulation tissue is covered by a thin layer of granulation tissue (Fig.9 *), while the membrane remains in place (M). 去除PGA缝线,膜(图九 M)仿佛保持在原位,颊侧部分似乎溶解(*),但是下面新鲜肉芽组织好像有一层薄的上皮覆盖。
Xin Wei, DDS, PhD, MS 1st edition 07/29/2020, last revision 07/31/2020