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发帖数: 8870 | 1 【 以下文字转载自 Parenting 讨论区 】
发信人: wigglyteeth (PHDDS), 信区: Parenting
标 题: 小孩子的出牙和换牙时刻表
发信站: BBS 未名空间站 (Wed Mar 20 22:36:11 2013, 美东)
有些家长担心自己的孩子出牙过早或过晚，这是一个小孩子的出牙和换牙时刻表 。家
长可以大至对照一下。
Primary Teeth Development Chart
Upper Teeth When tooth emerges When tooth falls out
Central incisor 8 to 12 months 6 to 7 years
Lateral incisor 9 to 13 months 7 to 8 years
Canine (cuspid) 16 to 22 months 10 to 12 years
First molar 13 to 19 months 9 to 11 years
Second molar 25 to 33 months 10 to 12 years
Lower Teeth
Second molar 23 to 31 months 10 to 12 years
First molar 14 to 18 months 9 to 11 years
Canine (cuspid) 17 to 23 months 9 to 12 years
Lateral incisor 10 to 16 months 7 to 8 years
Central incisor 6 to 10 months 6 to 7 years
From webmd.com |
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