According to Schilder mechanical objectives of cleaning and shaping are:
Mechanical objectives by (SCHILDER)
i) Canal should be continuously taper Funnel orifice →Apex.
ii) Canal should be prepared in multiple plane.
iii) Apical constriction should be as small as possible.
Canal should be continuously taper.
Canal should be prepared in multiple plane.
Apical construction should be as small as possible.
All of the above.