皆さんこんにちは。

今回は今まで登場してきた根尖孔付近に生息する細菌が

原因となって生じる歯根囊胞に関する論文です。

During the past few decades several authors have perpetuated the notion that nearly half of all periapical lesions are radicular cysts. A few studies, based on meticulous serial sectioning of periapical lesions retrieved in toto, have shown that the actual incidence of radicular cyst is only about 15% of all periapical lesions. Equally significant was the discovery in 1980 and recent confirmation that radicular cysts exist in two structurally distinct classes namely, those containing cavities completely enclosed in epithelial lining (periapical true cysts) and those containing epithelium-lined cavities that are open to the root canals (periapical pocket cysts). From a clinical point of view a periapical pocket cyst may heal after conventional root canal therapy whereas an apical true cyst is less likely to be resolved without surgical intervention.

つまり、慢性化膿性根尖性歯周炎の内

歯根囊胞は１５%しかなく

囊胞が完全に上皮層に覆われているものと

根管に開口しているものの２種類有ります。

前者は後者と比べて、感染源除去の為に

外科的介入の必要性がより高くなる

ということでした。

引用文献

Nair PN.New perspectives on radicular cysts: do they heal?Int Endod J 1998;31(3):155-160.