MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY
Dental instruments. These are instruments used by a dentist to examine and clean a patient's teeth. Picks and scrapers of various shapes and sizes are used to probe the teeth to find areas of decay, and to clean the teeth of accumulated material such as tartar. Sterile tools are required to prevent microbial contamination of the patient's mouth, especially since dental disease can result in inflamed and sensitive gums that may bleed during an examination. Photographed in St Mary's Hospital, Lacor, Gulu, Uganda.
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