The objective of the study was to compare the frequency of contamination on used with unused (brand new) healing abutment after sterilization using Phloxine B dye and to determine the contamination on different sites of healing abutment using Phloxine B dye. A total of 60 healing abutment (Zimmer and Biohorizon) divided into equal test (unused new HA) and control groups (used HA) were evaluated for contamination after sterilization. Data was analyzed...