THE IMPORTANCE OF CROSS –CONTAMINATION CONTROL WITH LAB MADE RESTORTIONS

Abstract

Statement of problem:. The increased awareness of the dangers of cross-contamination with hepatitis virus (HBV), (HCV) and HIV during dental procedures is having a growing impact on attitudes toward infection control in the dental clinic and laboratories. . Purpose of the study: The aim of this study was to evaluate the micro-organisms trans-mission from the metal substructure to the dies after try-in stage.. Material and Methods: 10 cases have been selected and diagnosed. . Two final impressions were taken for every case . The first impression was swabbed for microbiological testing and discarded. The second impression was used for constructing the crown in aseptic conditions. The metal substructure was triad in patient’s mouth . The metal substructure was placed on the die without using any disinfecting material for . The die was swabbed and tested for the microorganisms counting . Results: The count of Streptoococcus (α Hemoltica ) was the same results which obtained from the contaminated impression. Conclusion: The infection control measurements and guidelines should be strongly encouraged. to ensure aseptic practice in dental clinics and laboratories to avoid cross contamination