Table 2: Classification of instruments used for collecting and measuring data during the tests.

ClassType

(A)Flex R File, Union Broach, York, PA, USA
(B)Dentsply, Maillefer, Tulsa, OK, USA
(C)DeTrey, Konstanz, Germany
(D)Fuji II, Gc corp, Tokyo, Japan
(E)ENDO LIGHT-POST number 3 Bisco, Schaumburg, IL, USA
(F)Monobond S Ivoclar Vivadent, Schaan, Liechtenstein
(G)Prime and Bond NT Dentsply DeTrey, Konstanz, Germany
(H)Optilux 401 Kerr, Danbury, USA
(I)Fluorocore 2 Dentsply DeTrey, Konstanz, Germany
(J)ProBase Cold Ivoclar Vivadent, Schaan Fürstentum, Liechtenstein
(K)Instron Corp, Canton, MA, USA
(L)Digimax Plus Controls srl, Cernusco s/n, Italy