Pitcher G R, Newman H N, Strahan J D
J Clin Periodontol. 1980 Aug;7(4):300-8. doi: 10.1111/j.1600-051x.1980.tb01972.x.
Teeth destined for extraction and exhibiting periodontal pockets had reference grooves cut on the proximal surfaces at the level of the gingival margin. A disclosing agent was then applied either as a mouthrinse or by direct irrigation at the entrance of the pocket. After extraction, the extent of apical penetration of the solution was measured from the reference point. Subsequently, the tooth was stained enabling similar measurements from the reference point to the level of the apical plaque border and the coronal level of the residual periodontal ligament. Analysis of these measurements indicated that neither mouthrinsing nor direct irrigation routinely achieved penetration of the solution to the apical plaque border. While mouthrinsing failed to achieve any significant penetration of pockets, the direct irrigation technique was partially effective. It was concluded that direct irrigation offers promise as a mode of application of chemical agents to subgingival plaque.
对于注定要拔除且有牙周袋的牙齿，在牙龈缘水平的近中面切割参考沟。然后，将一种显色剂作为漱口水应用，或者在牙周袋入口处直接冲洗。拔牙后，从参考点测量溶液的根尖渗透程度。随后，对牙齿进行染色，以便从参考点到根尖菌斑边界水平以及剩余牙周膜的冠方水平进行类似测量。对这些测量结果的分析表明，漱口水冲洗和直接冲洗通常都无法使溶液渗透到根尖菌斑边界。虽然漱口水冲洗未能使溶液显著渗透到牙周袋，但直接冲洗技术部分有效。得出的结论是，直接冲洗作为将化学药剂应用于龈下菌斑的一种方式具有前景。
