| 摘要 |
The present invention relates to an instrument for periodontal treatment, comprising a blade ( 1 ) connected integrally to a head ( 2 ) intended to be coupled to a handpiece so as to impart to said blade ( 1 ) a vibratory movement, said blade ( 1 ) having, on one of the sides delimited by a plane passing through its axis, an active part ( 1 a) distributed along the blade ( 1 ), characterized in that said blade ( 1 ) is additionally provided with an irrigation channel ( 4 ) for liquid arranged at its center, this channel ( 4 ) opening out at the center of the active part ( 1 a) of said blade ( 1 ) along the major part of its length, thus ensuring, on the one hand, cleaning of the active part ( 1 a) of the tool during the procedure, and, on the other hand, removal of the detached particles.
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