You wished for your child to have all permanent teeth 你多希望孩子的牙都换成了恒牙。
2.
Tooth crowding occurs if there is inadequate room for all permanent teeth to erupt or when the permanent premolars erupt and the growth of the jawbone stablizes 牙齿排列不整齐由于恒齿的体积比乳齿大，恒齿长出时可能不够空位，引致牙齿排列参差不齐。
