九江市7~9岁儿童口腔卫生干预研究-本科毕业论文 关键词】 口腔健康;第一恒磨牙;窝沟封闭;预防[gap=1178]Key words】 Oral health;The first permanent molar;Pit and fissure sealant;Prevention
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In this article, we describe the autotransplantation of a supplemental premolar to replace an extracted first permanent molar in a 12-year-old boy.
在本文中，我们描述了自体补充臼齿以取代提取第一恒磨牙在12岁的男孩。
Objective To study the shape and location of root canal orifice in maxillary first permanent molar and provide a morphological basis for locating canal orifice in endodontic therapy.
目的研究上颌第一磨牙根管口形态和位置关系，为根管治疗时寻找根管口提供解剖学依据。
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