A<unk>  is a dental instrument used to properly distribute root canal sealer and cement evenly throughout the root canal system, as when performing endodontic therapy or a post and core cementation.
Maillefer’s<unk> , produced by Dentsply, is the only one licensed to use the<unk>  name; however, the term is generally used to refer to any of the various brands of root canal sealer and cement distributing<unk> s.
Lentulo spiral
Reposal
Mosaic 
Fair coin
Wonder 
Sponge
Beevor's axiom
Piped link