The wood distillate oil in dental materials is mainly used for diminishing inflammation and relieving pain.
the creosote oil is derived from phenolic mixture obtained by dry distillation of beech or similar plants. The main components are Guaiacol, Crosol and other phenols. Appearance is colorless or yellow oily liquid. It's a disinfectant and preservative.
features:? The disinfection power is second only to FC, and the irritation is less than FC.
efficacy: it can paralyze sensory nerve endings; It can be decomposed when it meets purulent blood or periapical necrotic tissue.
usage: seal the infected root canal, when there is much exudation; Use when there is only knocking pain in the affected tooth, or the knocking pain is not consistent with the degree of infection.
Extended information:
Pharmaceutical value
The extraction process of creosote oil was invented by later generations. Although there was no relevant record in ancient Chinese medical books, creosote oil was extracted from Zelkova schneideriana, and there were a lot of records about its medicinal value.
The medicinal value of Zelkova schneideriana bark was first seen in A.D. 498 in the Collection of Notes on Materia Medica compiled by Tao Hongjing, a Taoist thinker, physician and writer in the Liang Dynasty. The medicinal value of Juglans mandshurica bark is the new drug discovered by Tao Hongjing on the basis of absorbing the experience of famous doctors in Wei and Jin Dynasties, and it was added to the pharmaceutical classics for the first time in history after he personally collected and confirmed it. It is recorded in the book: "Headache is the main cause, and heat is accumulated in the stomach and intestines", and "Drink in summer, and get rid of heat".
The medicinal value of Zelkova schneideriana bark has been inherited and developed in various medical works. Tang's "Records of Ancient and Modern Prescriptions": "Treating children's thirst and dysentery: 12 points for tangerine peel, 8 points for Trichosanthes kirilowii and Poria cocos, 6 points for ginseng and 2 points for millet". The Five Dynasties "Rihuazi Materia Medica": "The bark of Zelkova schneideriana is used to cure heat and toxic wind, and xie (Italian roast) is swollen and toxic". Sheng Hui Fang in Song Dynasty: "Treating pain and edema: boiling the bark of beech tree and drinking it every day". The medical value of Zelkova schneideriana bark is also recorded in Ming Compendium of Materia Medica, the most famous encyclopedia of traditional Chinese medicine in history: "Zelkova schneideriana bark is everywhere in the mountains, and its leaves are like oak and oak", "Poisonous gas attacks the abdomen, causing pain in hands and feet. Boil juice with beech bark and oak bark. " It can be seen that the medicinal value of Zelkova schneideriana has been verified by famous Chinese medicine experts in past dynasties, and it has been circulated for a long time and widely used.
Reference: Baidu Encyclopedia wood distillate oil.