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Extracted molar showing 3 amalgam fillings

Extracted molar showing 3 amalgam fillings


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Extracted molar showing 3 amalgam fillings

Macrophotograph of an extracted molar (male, upper, number 7), a top view showing three 20 year old amalgam fillings. The filling is a powdered alloy consisting of silver, tin, copper & zinc mixed with mercury. The decayed area is removed & the cavity lined with a white filler, protecting the base from the effects of the filling itself. The source of tooth decay (dental caries), is complex. It is linked to the build up of plaque, a mixture of saliva, bacteria & carbohydrate on the tooths surface. Acid produced during the breakdown of carbohydrates by the bacterium Streptoccocus etches into the enamel & deeper if not treated. Magnification: X1.6 (at 35mm size)

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6433927

© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY

Cavity Dental Dentistry Filled Filling Molar Oral Silver Upper Amalgam Condition Disorder Health Care


EDITORS COMMENTS
This macrophotograph showcases the intricate details of an extracted molar, specifically a male upper tooth numbered 7. The image focuses on three amalgam fillings that have been in place for an impressive two decades. Amalgam fillings are composed of a powdered alloy containing silver, tin, copper, and zinc mixed with mercury. The decayed area within the tooth has been meticulously removed, leaving behind a cavity lined with a protective white filler. This lining shields the base from any potential adverse effects caused by the filling itself. Tooth decay, scientifically known as dental caries, is a multifaceted issue explored through this photograph. It is closely associated with plaque accumulation – a combination of saliva, bacteria, and carbohydrates present on the tooth's surface. Acid produced during carbohydrate breakdown by Streptococcus bacteria etches into the enamel and can penetrate deeper if left untreated. Magnified at X1.6 (at 35mm size), this print offers viewers an up-close look at oral health care practices and dentistry techniques used to address such disorders effectively.

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