The height of alveolar on the mesial and distal sides increased about 33% and the width of gingiva on the labial surface increased about 36% as far as the teeth were extruded.
近远中牙槽嵴高度的增加约为牵引距离的33%，唇侧牙龈宽度的增加约为牵引距离的36%。
The height of alveolar on the mesial and distal sides increased about 33% and the width of gingiva on the labial surface increased about 36% as far as the teeth were extruded.
近远中牙槽嵴高度的增加约为牵引距离的33%，唇侧牙龈宽度的增加约为牵引距离的36%。
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