ENDO : RCT : Access Cavity Preparation
Burs : For initial entrance : Round-end carbide fissure bur/ diamond stone bur. (Extra-Coarse, dome-ended cylinder bur for cutting through non-precious metals.) (Small diamond bur, for porcelain jacket crown) For dentin removal & drop into pulp chamber : Round bur (regular-length = 9mm; surgical-length bur = 14-15 mm) (No. 2 = Maxillary PreMolar & Mandibular Anterior, No. 4 = Maxillary Anterior & Mandibular Posterior, No. 6 = Molars with large pulp chambers) Endodontics - 4th Edition : Ingle, Bakland.
