MicroEndodontic. Case Study Number 526237
Some info on Russian red or resorcinol formaldehyde cement, a potentially toxic root canal filling material which, once set, become very difficult to retrieve from the tooth. Russian red technique allow for its provider to perform a root canal procedure in a much faster way (thus cheaper) than conventional approach because pulp (nerve) does not have to be removed completely, pulp remnants (nerve remnants) are thought to be chemically “mummified” and bacteria also destroyed by the formaldehyde component of russian red formula. Formaldehyde is known to be a human carcinogen.
In this case, restoration open margin allows for tooth decay to develop as it also allows for a recurrent bacteria contamination. Restoration open margin is an open gate for a potential formaldehyde release in patient saliva.
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