Walton R E
J Endod. 1990 Feb;16(2):62-6. doi: 10.1016/S0099-2399(06)81565-7.
The periodontal ligament injection has been promoted as a primary anesthesia technique. To be useful, however, any anesthetic approach must meet several criteria. First, there must be adequate depth of anesthesia; second, onset of anesthesia should be sufficiently rapid; third, duration must be sufficient to complete the procedure; fourth, discomfort should be minimal during and after the injection; and fifth, the injection must be safe to periodontium and pulp during operative or other procedures. In reviewing the clinical and experimental literature as to the factors described above, the periodontal ligament injection does not meet all of the necessary requirements for a primary technique. It is, however, apparently safe to the periodontium and to the pulp when used in conjunction with certain operative procedures.
牙周膜注射已被推广为一种主要的麻醉技术。然而，要使其有用，任何麻醉方法都必须满足几个标准。首先，必须有足够的麻醉深度；其次，麻醉起效应足够迅速；第三，持续时间必须足以完成手术；第四，注射期间和之后的不适应最小；第五，在手术或其他操作过程中，注射对牙周组织和牙髓必须是安全的。在回顾关于上述因素的临床和实验文献时，牙周膜注射并不满足作为一种主要技术的所有必要要求。然而，当与某些手术操作联合使用时，它对牙周组织和牙髓显然是安全的。
