The Effect of Abutment Angulation and Crown Material Compositions on Stress Distribution in 3-Unit Fixed Implant-Supported Prostheses: A Finite Element Analysis

Table 1

Material properties.

	Material	Elastic modulus (MPa)	Poisson ratio
	Titanium	1.1 × 101^1	0.35
	Cortical bone	1.37 × 10^10	0.30
	Spongy bone	1.37 × 10^9	0.30′
PFBM	Porcelain	8.28 × 10^10	0.35
	Coping	2.06 × 10^11	0.35
PFNM	Porcelain	8.28 × 10^10	0.35
	Coping	8.95 × 10^11	0.33

Porcelain fused to base metal (PFBM), porcelain fused to noble metal (PFNM).