Objectives of cleaning and shaping are all except:
Schilder objectives of cleaning and shaping of root canals:
a) Mechanical objectives:
• Continuous tapering canal shape, with the narrowest cross-sectional diameter apically and the widest diameter coronally.
• Walls should taper evenly towards apex
• To give the prepared root canal the quality of flow.
• Should keep the apical foramen as small as practical.
 
b) Biologic objectives:
• To debride and disinfect root canal system
• Necrotic debris should not be forced periapically
• Sufficient space for intracanal medicaments and irrigants should be created.
Sufficient space should be created for intracanal medicaments and irrigants.
To aid in condensation of inert filling material.
Should keep the apical foramen as small as possible.
None of the above