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活髓切断术(简称切髓术)自Witzel(1884年)首先开展以后,继之Newvilt(1933年)进行了实验性研究,并获得了组织学成功。近年来,切髓术进一步受到了普遍重视,发展很快,在临床上也取得了一定的效果。本文对切髓术的适应症、麻醉方法、切髓部位、切髓方法、盖髓剂等的改进和发展作一综述。一、适应症过去,切髓术仅适应乳牙和新生恒牙因龋或牙折而致的牙髓暴露。近年来,随着牙髓病理学的发展,活髓切断术的适应症范围逐渐扩大,多数学者认为,无论乳牙还是恒牙的牙髓,凡能切除炎症部分,保留健康部分者,均可施行切髓术。主要适应症如
Medulotomy (referred to as stapling) was first performed after Witzel (1884), followed by Newvilt (1933) for an experimental study and histological success. In recent years, cesarean section has received more and more attention, developed rapidly, and achieved some clinical results. This article reviews the indications of cesarean section, the methods of anesthesia, the site of incision, the method of incision, the method of capping and other improvements and developments. First, the indications In the past, incision only adapted to deciduous teeth and newborn permanent teeth due to dental caries or tooth crease exposed. In recent years, with the development of endodontic pathology, the scope of the indication of vital pulpotomy gradually expanded, most scholars believe that both primary teeth and primary teeth of the dental pulp, who can remove the inflammatory part, retain the healthy part of those who can be implemented Incision. The main indications such as