上颌磨牙 maxillary molar ; upper molar
上颌第一磨牙 maxillary first molar ; The frist Permanent Maxillary molar ; Upper first molar
上颌第二磨牙 maxillary second molar ; The Second Permanent Maxillary Molar
上颌第一前磨牙 maxillary first premolar ; The First Permanent Maxillary Premolar
上颌第三磨牙 maxillary third molar ; upper third molar
上颌第二前磨牙 maxillary second premolar ; The Second Permanent Maxillary Premolar
上颌第一乳磨牙 maxillary first deciduous molar
上颌前磨牙 maxillary premolars
上颌第二乳磨牙 maxillary second primary molar
器械折断于上磨牙近颊根管和下磨牙近中根管者居多，占70.7%。器械折断在根管中下段多见，占70%。
Most of which happened in mesiobuccal canal of maxillary molar and mesial canal of mandibular molar, accounting for 70.7%.
结果：发现7～ 8岁组患儿上磨牙远移的距离大于10～ 11岁组的患儿，7～ 8岁组患儿上颌骨向前生长所受抑制较10～ 11岁组明显，7～ 8岁组患儿替牙期选用口外弓的治疗效果较10～ 11岁组为好。
Results: The more distance of maxillary molar and more obvious inhibition of maxilla bone growth forward in group of 7~8 year old children were detected than those in group of 10~11 year old children.
与其他情况相比尽管不是热门话题，夜间磨牙症事实上是最为常见的一种睡眠障碍。
While less talked-about than many other conditions, bruxism is actually one of the most common sleep disorders.
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