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Typical caustic pencil with detail of dried, oxidized, and inactive chemical. A caustic pencil (or silver nitrate stick) is a device for applying topical medication containing silver nitrate and potassium nitrate, used to chemically cauterize skin, providing hemostasis or permanently destroying unwanted tissue such as a wart, skin tag, aphthous ulcers, or over-production of granulation tissue. [1]
More modern treatment applies silver nitrate after a local anesthetic. The procedure is generally painless, but after the anesthetic wears off, there may be pain for several days, and the nose may run for up to a week after this treatment. Nasal cauterization can cause empty nose syndrome. [24] [25] [26]
Silver nitrate is also used in certain laboratory procedures to stain cells. As it turns them permanently a dark-purple/black color, in doing so increasing individual cells' visibility under a microscope and allowing for differentiation between cells, or identification of irregularities. Silver is also used in bone prostheses and cardiac ...
In the treatment of umbilical granulomas, silver nitrate is applied to the umbilical site to burn off the excess tissue. [18] The absence of nerve endings within the granuloma make this a painless treatment for the newborn. [19] While painless, contact of silver nitrate to the adjacent, healthy, normal tissue may result in burns. [19]
Silver nitrate was one of the widely used drugs in the 19th century. However, it became replaced by Protargol. Arthur Eichengrün invented this type of colloidal silver, which was marketed by Bayer from 1897 onward. The silver-based treatment was used until the first antibiotics came into use in the 1940s. [80] [81]
Dental use of silver nitrate can be traced back to Japan around 1000 AD, where it was used for cosmetic purposes of blackening of teeth. Silver nitrate followed by application of fluoride varnish was the only non-invasive option available for caries treatment before the advent for silver diamine fluoride (SDF). Cases of carious lesions treated ...
Dentin hypersensitivity (DH, [4] DHS [5]) is dental pain which is sharp in character and of short duration, arising from exposed dentin surfaces in response to stimuli, typically thermal, evaporative, tactile, osmotic, chemical or electrical; and which cannot be ascribed to any other dental disease.
[1] [note 1] The original procedure called for a 2% silver nitrate solution administered immediately after birth, as Credé erroneously believed that a 1% solution was ineffective due to a previous study by Hecker; however, this was eventually corrected and reduced back down to a 1% solution to reduce chemical irritation to the newborn's eyes. [2]