TABLE 1.

Materials used in the study, their composition and instructions of use

Materials	Composition	Instructions of use
Mineral trioxide aggregate (MTA Angelus, Londrina, PR, Brazil) Dopamine hydrochloride (Sigma Aldrich, St. Louis, Missouri, USA) AdheSE One, One-step self-etch (Ivoclar Vivadent, Schaan, Liechtenstein) AdheSE, Two-step self-etch (Ivoclar Vivadent, Schaan, Liechtenstein) Tetric N-Ceram (Ivoclar Vivadent, Schaan, Liechtenstein) Lot No. X29208	Tricalcium silicate, dicalcium silicate, tricalcium aluminate, calcium oxide, bismuth oxide Dopamine hydrochloride (<100%) Derivatives of bis-acrylamide, water, bis- methacrylamide dihydrogen phosphate, amino acid acrylamide, hydroxy alkyl methacrylamide, silicon dioxide Primer: Acrylic ether phosphonic acid, bisacry- lamide, water, camphoroquinone, stabilizers. Bond: bisphenol A-glycidyl methacrylate, glycerol dimethacrylate, hydroxyethyl methacrylate, fumed silica, camphoroquinone, tertiary amine, stabilizers Dimethacrylates, barium glass, ytterbium trifluoride, mixed oxide and copolymers, additives, initiators, stabilizers and pigments	The contents of one sachet is mixed with one drop of distilled water for 30 seconds to a homogeneous wet sand consistency Used as polydopamine (PDA) solution. 0.10 |jml of PDA was dispensed over MTA surface using a micropipette, brushed with a micro applicator tip for 15 sec and left in place for 1 min Apply a single layer, brush for 30 sec, dry with a strong stream of air and light cure for 10 sec Apply primer, brush for 15 sec and dry with mild air. Apply bond, dry with mild air and light cure for 10 sec Apply in layers of not more than 2mm thickness, contour and light cure for 15 sec