有学者认为:液体剂是否充满根管并聚合完全与成败有密切关系。由于酚醛树脂对X线透射,临床上无法判断液充深度,不能了解其与临床疗效的确切关系。为此,笔者将显影酚醛树脂(口腔医学1985;5:175)应用于临床,进行根管液体充填。初步小结如下: Some scholars believe that: liquid agent is full of root canal and polymerization is closely related to success or failure. As the phenolic resin on the X-ray transmission, clinical fluid depth can not be judged, can not understand the exact relationship between the clinical efficacy. To this end, I will develop phenolic resin (stomatology 1985; 5: 175) applied to clinical, root canal fluid filling. The preliminary summary is as follows: