Table 1: Schematic of the principal features of the polishing/finishing procedures adopted in the experiments.

Finishing Procedures Composition Producer Batch N.
Sof-lex middle-grain abrasive discs Oxide alloy 3M ESPE, St. Paul, MN, USA 127683
Tungsten carbide multi-blade milling cutters: Q series + UF series Tungsten carbide KOMET ITALIA, Milan, ITALY 860168
871818
Diamond milling cutters
Red ring 50 μm
Yellow ring 30 μm
Diamond KOMET ITALIA, Milan, ITALY 884220
852330
Polishing Procedures Composition Producer Batch N.
Sof-lex, fine and extrafine grain abrasive discs (multi-step procedure) Oxide alloy 3M ESPE, St. Paul, MN, USA 127683
Silicone rubber tip (one-step procedure) Ultrafine diamond grain rubber tip with flexible silicone binder KOMET ITALIA, Milan, ITALY 867287
Experience seal coat, Experience polish paste (+ goat-hair brush and cotton mop (multi-step) Experience seal coat: resine acrilate e metilmetacrilate Experience polish paste: oxide alloy, water, glycerine and sweetener. DEI Italia, Mercallo, VA, ITALY 5105695
2011003569