Coupland’s elevators (also known as chisels)   are instruments commonly used for dental extraction. They are used in sets of three each of increasing size and are used to split multi-rooted teeth and are inserted between the bone and tooth roots and rotated to elevate them out of the sockets. The instruments were designed by Doctor Douglas C W Coupland who qualified as a Dental Surgeon in Toronto in 1922 and spent most of his career practising dentistry in Ottawa where he specialised in dental extraction. Coupland designed the instruments in the 1920s; they were manufactured by the Hu-Friedy company and sold from the early 1930s initially as sets of eight or twelve which were later reduced to three. Coupland also designed a set of dental suckers with interchangeable tips. He died in 1936 after only 13 years of clinical practice.
- Bussell, MA; Graham, RM (November 2008). "The history of some commonly used dental elevators". British Dental Journal. 205: 505 – 508.
- Cove, Peter (24 January 2009). "Coupland's Chisels". British Dental Journal. 206: 57.
- Robinson, Paul (2000). Tooth Extraction: A Practical Guide. Oxford: Butterworth-Heinemann. ISBN 978-0723610717.
- "Obituary". Journal of the Canadian Dental Association. 1936.
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