...分析 关键词】 人前磨牙；牙髓牙本质复合体；纤维粘连蛋白；免疫组织化学；图像定量分析 [gap=1475]Key words】 Human premolars; Dental pulp-dentin complex; Fibronectin; Immunohistochemistry; Quantitative im..
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extracted human premolars 正畸减数前磨牙
Methods 60 human premolars were selected and divided into six groups by random.
方法收集离体人前磨牙60个，随机分成6组。
Methods:28 human premolars extracted for orthodontic reasons were collected for the experiment. Every premolar was split vertically into medial and distal haves.
方法：收集临床上因正畸需要拔除的前磨牙28颗，将每个牙齿分为近中和远中两个邻面标本。
Objective To investigate root canal curvatures of human maxillary first premolars in buccolingual directions.
目的研究上颌第一前磨牙根管颊舌向的弯曲情况。
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