Results The more distance of maxillary molar and more obvious inhibition of maxilla bone growth forward in group of 7 8 year old children ( group of transitional dentition) were detected than that in group of 10 11 year old children ( group of permanent tooth).
结果发现替牙期组(7~8岁)上磨牙远移的距离大于恒牙期组(10~11岁),上颌骨向前生长所受的抑制较恒牙期明显。
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