Effect of Abutment Geometry and Luting Agents on the Vertical Marginal Discrepancy of Cast Copings on Implant Abutments: An In Vitro Study

Table 2

Vertical marginal discrepancy in μm for cast copings influenced by abutment geometry and luting agent.

Abutment geometry and luting agent	Vertical marginal discrepancy
	Mean	SD
Abutment geometry
Cylindrical 4.0 mm	31.80	6.03	0.012
Cylindrical 5.5 mm	46.81	8.06
Cylindrical 7.0 mm	52.67	10.72
Hexagonal 4.0 mm	44.81	7.88
Total	—	—
Luting agent
Zinc oxide noneugenol	42.75	6.21	0.016
Glass ionomer	41.72	6.72
Zinc phosphate	53.59	11.42
Total	—	—

SD: standard deviation. ANOVA test. Statistically significant differences .