50.3 MB (50.0 MB compressed)
5138 x 3425 pixels
43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi)
BRITISH DENTAL ASSOCIATION MUSEUM / SCIENCE PHOTO LIBRARY BRITISH DENTAL ASSOCIATION MUSEUM / SCIENCE PHOTO LIBRARY
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Dr Edward H. Angle's head gear for orthodontic use. This extra-oral appliance consists of a silk net laced to a metal band. The traction bar at the front of the mouth was used with a contraction arch to draw in protruding upper incisors. Dated 1890.
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