Table 2.

Bonding protocols tested.

Groups	Abbreviations	Bonding protocol
Monobond Plus + Multilink Hybrid Abutment	MP + MHA	A thin layer of MP was applied with a micro-tip applicator and dried with an air syringe. Then, MHA was applied from the syringe by an automix tip.
G-CEM One	GC-O	The GC-O was applied from the syringe by an automix tip.
G-Multi Primer + G-CEM One	GMP + GC-O	A thin layer of GMP was applied with a micro-tip applicator, dried with an air syringe. Then, GC-O was applied from the syringe by an automix tip.
Monobond Plus + SpeedCem Plus	MP + SCP	A thin layer of MP was applied with a micro-tip applicator and dried with an air syringe. Then, SCP was applied from the syringe by an automix tip.
Scotchbond Universal Plus + RelyX Universal	SBUP + R-U	A thin layer of SBUP was applied with a micro-tip applicator and dried with an air syringe. Then, R-U was applied from the syringe by an automix tip.
Panavia SA Cement Universal	PSA-U	The PSA-U was applied from the syringe by an automix tip.
Clearfil Universal Bond + Panavia SA Cement Universal	CUB + PSA-U	A thin layer of CUB was applied with a micro-tip applicator and dried with an air syringe. Then, PSA-U was applied from the syringe by an automix tip.
Optibond Universal + Nexus Universal	OBU + N-U	A thin layer of OBU was applied with a micro-tip applicator and dried with an air syringe. Then, N-U was applied from the syringe by an automix tip.
Totalcem	TTC	The TTC was applied from the syringe by an automix tip.