00000ctm a22000003a 4500 UP-1685523046126152509 Buklod 20080826140612.0 m |o d | cr ||||||||||| 080826s xx d r |||| u| (iLib)UPMNL-00005012535 UPDent eng LG 993.5 1992 D4 A66 Apolinario, Melissa A. A preliminary microbial study of used O.P. burs Melissa A. Apolinario, Jose Manuel R. Rivera. 52 leaves Seminar Paper--Doctor of Dental Medicine--University of the Philippines Manila. 54 regular senior clinicians from the U.P. College of Dentistry were given questionnaires regarding the reuse of dental burs and certain clinical practices in cleaning burs. 18 senior clinicians from the Aug 26 - Sept. 27 1991 O.P. shift participated in the experimental part of the study using sterile no. 700 carbide fissure burs in preparing incipient class II cavity preparations during their practical examination. These burs were then subjected to microbiological testing. The results turned out to be that: The current clinical practices regarding the reuse of dental burs could pose as a health threat due to the lack of aseptic techniques. The microbial content of such used burs included potentially pathogenic Gram-positive bacteria (Staphylococcus and Streptococcus species) and Gram-negative bacteria Neisseria catarrhalis). This further points to the need for aseptic clinical techniques due to the presence of such bacteria which could cause infection or disease through cross-contamination. Infection control, Dental. Dental materials. Rivera, Jose Manuel R. Alday, Adalberto (Adviser). UPMNL DENT LG 993.5 1992 D4 A66 Thesis