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Objective: To assess bacterial contamination of cellular telephone of dental care personnel, and to determine factors contributing to their contamination. Materials and Methods: A descriptive, cross-sectional study was conducted, which included 300 people using a cellular telephone The study group (hundred in each group) comprised of Dental Health Care Personnel (DHCP), In-Hospital Personnel (IHP) and Out-Hospital Personnel (OHP) of a dental college cum hospital. Swab was wiped along the front and all sides of cellular handset and it was incubated in glucose broth. The swab was subplated onto growth media plates made with half Mac Conkey’s agar and half blood agar and allowed to incubate for 48 hours at 37oC. Isolates were tested for antimicrobial susceptibility. Result: The analysis of presence or absence of microorganisms in the DHCP, IHP and OHP group showed no pyogenic growth in 28%, 31% and 41% cases respectively, the distribution of which was not significant (p>.05). Among non potential pathogens, spore bearing gram positive bacilli were seen in 20 cases of DHCP group, 16 cases of IHP group and 17 cases of OHP group; the distribution of which was not significant (p>.05) Among potential pathogens, significant differences were observed in the distribution of growth of Enterobacter (p