A few Archaea, e.g.Sulfolobus, can oxidize elemental sulfur.

少数古细，霉素Sulfolobus,可以氧硫元素。

To study the content alteration of bacterial endotoxin in the exudant from the root canals of periapical treated with calcium hydroxide as intracanal medicament.

检测氢氧钙封药前后尖周病患牙根管细毒素的变。

To study the content alteration of bacterial endotoxin in the exudant from the root canals of periapical diseases treated with calcium hydroxide as intracanal medicament.

检测氢氧钙封药前后尖周病患牙根管细毒素的变。