论文部分内容阅读
暂封是牙髓病和尖周病多次疗法中的常规性操作。一般说来,暂封简单容易。但是,临床上做到良好的暂封却非轻而易举。暂封质量不佳时,就会发生渗漏,使髓腔和口内环境相通。或导致失活剂或其它消毒药物渗漏,或使唾液中的细菌进入髓腔。亚砷酸失活剂渗漏,引起牙龈或牙槽骨坏死的病例在文献上屡有报道。封置的消毒药物亦可因渗漏和唾液的进入而使效力丧失或减弱,影响治疗效果。许多暂封在肉眼观察时似乎良好,而实际上可能已经发生渗漏。国外一些作者对暂封甚为重视,并做了深入的研究。现综述如下: 一、暂封的目的: 1.暂封保证药物(失活剂、消毒药)能完整地存留于髓腔内,充分发挥作用,以达到预期目的。并且保护口腔组织免遭化学性损伤。 2.防止唾液中的细菌进入髓室和根管,以免发生感染或再感染。
Temporary closure is a common practice in multiple therapies for endodontics and periapical disease. In general, temporary closure is simple and easy. However, it is not easy to achieve good clinical temporary closure. Temporary poor quality, leakage occurs, so that the medullary cavity and the mouth of the environment. Or cause leakage of deactivators or other disinfectants, or enter bacteria in saliva into the medullary canal. Arsenic acid inactivation agent leakage, causing gums or alveolar bone necrosis cases have been reported in the literature. Sterilized drugs can also be sealed due to leakage and saliva into the loss of effectiveness or reduced, affecting the treatment effect. Many temporary seals appear to be good when viewed by the naked eye, and in fact, leakage may have occurred. Some foreign authors attach great importance to the temporary seal, and made in-depth research. Are summarized as follows: First, the purpose of temporary closure: 1. Temporary closure to ensure that drugs (inactivating agents, disinfectants) can be completely retained in the medullary cavity, to fully play its role in order to achieve its intended purpose. And protect oral tissues from chemical damage. 2. To prevent bacteria in saliva into the pulp chamber and root canal, in order to avoid infection or re-infection.