When the rubber dam is removed, the abscesses enlarge (Fig.6), which may be related to sodium hypochlorite leakage.  A dental explorer is used to try to find a bony opening to the large PARL without success (Fig.7).  The abscess has receded 1 month later (Fig.12). 

Leak Last Next Xin Wei, DDS, PhD, MS 1st edition 10/04/2019, last revision 10/04/2019