Root canal treatment success is best achieved by gaining conservative, straight-line access to the root canal system. Designed by Drs. David Clark and John Khademi, this endodontic procedure kit provides the necessary task specific SS White® Great White® Z and Piranha®-Single-Patient-Use Diamond rotary instruments to prepare and remove restorative material including zirconia substructures, de-roof and expand pulp chamber access, and flare and smooth axial walls with proper taper and finish. The instrument selection assists the clinician in addressing initial access for small incisors, troughing calcified canals, deeper dentin canal identification at the pulpal floor and funnel shaping of the pulp chamber walls. A new, long shank diamond rotary instrument improves line of sight when extending the access preparation and de-roofing the pulp chamber.