Each hand-piece needs servicing numerous times a year. All you need is a big, clean table or desk, preferably in a space you can set aside simply for the service, since the pieces are small and you can not be working surrounded by computers, books and papers.Dental hand-pieces are powered by air turbine motors. Rebuilding these hand-pieces consists of taking them completely apart, changing tiny ball bearings, O-rings, etc. and putting them back together once again.
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