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Ergonomic analysis of the handle of manual instruments for dental hygiene.

By Migliario M, Franchignoni M, Soldati L, Melle A, Carcieri P and Ferriero G.

Abstract

Work-related musculoskeletal disorders of upper limbs are very common among dental hygienists. To minimize the risk of their occurrence, it is essential that attention be paid to proper ergonomics in the workplace, including the selection of instrumentation. At present there are no specific guidelines but only some indications for the selection of the different hand tools. The main purpose of this study was to make a comparative analysis of different types of handles of hand tools used for root planing (Gracey curettes). Nine dental hygienists were interviewed with a questionnaire aimed to assess three different types of curette handle. The results showed that lightness, being of solid steel, having a cylindrical non-uniform shape with full enlarged cross-section, and being silicon coated with non-slip ends are the preferred characteristics for a curette handle. These considerations may assist both manufacturers in designing new hand instruments and clinicians in selecting the most ergonomic ones to buy

Topics: dental hygienist, dental instruments, dental scaling, musculoskeletal disorders, ergonomics, occupational diseases.
Year: 2012
OAI identifier: oai:iris.uniupo.it:11579/12030
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