A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 5/02 (2006.01)
Patent
CA 2429399
The invention concerns an instrument for reaming a root canal, in particular in the apical zone housing at its proximal part a handle for manual use or on the head of a dentist's contra-angle handpiece, the distal part of said blade being a pointed tip of known type. The invention is characterised in that the active cutting part of the blade has, from the pointed tip and continuously, two conical sections such that, besides the pointed tip, each conical section has a greater taper ratio than the least distal part adjacent thereto. The invention is useful for reaming root canals with sequences of instruments avoiding root weakening and filling material flow at the canal end.
Instrument pour l'alésage des canaux radiculaires, en particulier dans la zone apicale recevant à sa partie proximale un manche permettant son utilisation manuelle ou sur la tête d'un contre-angle de dentisterie, la partie distale de ladite lame étant une pointe de type en elle-même connue, caractérisé en ce que la partie coupante active de la lame présente, à partir de la point et en continuité, deux sections coniques telles que, outre la pointe, chaque section conique présente une conicité plus forte que la partie la moins distale qui lui est immédiatement voisine. Figure de l'abrégé: figure 7. Application: alésage des canaux radiculaires par des séquences d'instruments évitant l'affaiblissement de la racine et un fluage de la matière d'obturation en extrémité de canal.
Micro Mega (societe Anonyme)
Micro Mega International Manufactures
Robic
LandOfFree
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