唾石の形態学的観察

MORPHOLOGICAL STUDIES ON SALIVARY CALCULI

　Ⅰ．はじめに

　唾石症は日常臨床でしばしば遭遇する疾患で，唾石の多くは顎下腺ならびにその排出管内にでき，食物摂取時に唾液の排出が障害され，腫脹と疝痛が出現する。放置しておくと二次感染をくりかえすので，唾石を外科的に剔出しなければならなくなる。この論文では唾石を形態学的に観察し，その構造から結石に至つた形成過程を考察し，また同時に唾石症を臨床的に検討したので報告する。

　Morphological observation on salivary calculi was carried out by means of scanning electron microscope and ordinary light microscope. The salivary calculi were found to be formed by mixture of organic and inorganic substances. However, there was no regular pattern for the growth of thestones, as the thickness and the arrangement of the laminal components were not uniform. There was no inert foreign body or microorganism found in the calculi.

　There were two modes in the formation of colculous nucleus; one was the nucleus which was maturated from a primitive core and, the other was the nucleus that was formed from the beginning of the stone formation in a homogenous mineral mass. The x-ray microanalysis showed that most salivary calculi contained chemical elements such as calcium, phosphor, potassium, sodium, magnesium, chlorine, sulpher, manganese, chromium and aluminum.