How many drills does it take to create an osteotomy, burs to prep a veneer, an inlay-onlay, a crown?

How many files does it take to sculpt a root canal space if:

(Illogical logic of dangerous dichotomies – PART DEUX)

A root canal space is an arborizational, anastomotic, labyrinthine complexity, morphologically comparable to the pathways of a maze.
http://endodontiafobusp.wordpress.com/2012/04/04/apical-delta/apical-delta1/
http://endodontiafobusp.wordpress.com/2012/04/04/apical-delta/apical-delta2/
http://endodontiafobusp.wordpress.com/2012/04/04/apical-delta/apical-delta3/
[youtube]http://www.youtube.com/watch?v=keVqnGbo5Pc[/youtube]

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