Mechanical Outcomes, Microleakage, and Marginal Accuracy at the Implant-Abutment Interface of Original versus Nonoriginal Implant Abutments: A Systematic Review of In Vitro Studies

Table 1

Main data of the included studies.

Authors	IAI	Abutments; Test + Control	Test; Original Abutments	Control; Non-original abutments
Alonso-Pérez et al. 2017a	IH	45	Stock (n=15)	Compatible stock (n=30)
Alonso-Pérez et al. 2017b	IH	26	Stock (n=13)	Certified CAD/CAM (n=13)
da Cunha et al. 2012	MT	24	CAD/CAM (n=8)	Compatible CAD/CAM (n=16)
Berberi et al. 2014	MT	28	Stock (n=7)	Compatible stock (n=21)
Berberi et al. 2016	MT	15	Stock (n=5)	Compatible stock (n=10)
Cashman et al. 2011	EH	40	Stock (n=20)	Compatible Stock (n=20)
Gigandet et al. 2014	MT,I3L	60	CAD/CAM (n=36)	Compatible CAD/CAM (n=24)
Hamilton et al. 2013	MT,EH,I3L	11	Stock (n=6); CAD/CAM (n=1)	Compatible CAD/CAM (n=4)
Kim et al. 2013	I3L	60	CAD/CAM (n=20)	Certified CAD/CAM (n=40)
Kim et al. 2013	MT	21	Stock (n=7)	Certified CAD/CAM (n=7); Certified gold cast (n=7)
Lang et al. 2003	EH	30	CAD/CAM (n=6)	Compatible CAD/CAM (n=24)
Leutert at al. 2012	MT	84	CAD/CAM (n=4)	Certified CAD/CAM (n=80)
Paek et al. 2016	MT	6	Stock (n=3)	Certified CAD/CAM (n=3)
Park et al. 2017	MT	28	Stock (n=7)	Compatible stock (n=21)
Sola-ruitz et al. 2013	EH	150	Stock (n=25)	Compatible stock (n=125)
Yilmaz et al. 2015	IH	25	CAD/CAM (n=5)	Compatible stock (n=10); Compatible CAD/CAM (n=5); Certified CAD/CAM (n=5)
Total		653	188 (Stock 108, CAD/CAM 80)	465 (Certified 155, Compatible 310)

Legend: IH: internal hexagon; MT: morse tapered; EH: external hexagon; I3L: internal tri-channel; IAI: implant-abutment interface.