Callahan method

Callahan method
1. in root canal therapy, a filling method in which the canal is first flooded with a chloroform-rosin solution and then gutta-percha is dissolved in the solution. 2. a method of tracing and opening up a root canal by destroying the pulp tissue with a 50 per cent sulfuric acid solution.

Medical dictionary. 2011.

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  • Johnson method — a modification of the Callahan method (def. 1) of root canal therapy; the canal is first flooded with alcohol, allowing diffusion of the chloroform component of the chloroform rosin solution; alcohol deep in the dentin facilitates rosin dissolved …   Medical dictionary

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