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  • Title: Histological study of an acid red caries-disclosing dye.
    Author: Boston DW, Graver HT.
    Journal: Oper Dent; 1989; 14(4):186-92. PubMed ID: 2639319.
    Abstract:
    When 20 extracted teeth were examined histologically after using a 1.0% acid red caries-disclosing dye before excavation of carious dentin, 25% showed the presence of bacteria in the dentin. The use of a solution of 1.0% acid red in propylene glycol to identify infected dentin will greatly decrease but not completely eliminate the changes of viable bacteria remaining in a cavity preparation.
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