Table 3. Maximum compressive stresses in the cancellous and cortical bone around implants with different designs of threads under axial and oblique forces .

Surface angle	Axial load		Oblique load (45˚)
	Compressive stress (Gpa) cancellous bone	Compressive stress (Gpa) cortical bone	Compressive stress (Gpa) cancellous bone	Compressive stress (Gpa) cortical bone
V-shaped (20°)	1.87	226.8	1.01	447.5
V-shaped (35°)	2.17	10.34	4.46	17.60
Buttress (20°)	2.02	12.96	2.21	24.28
Buttress (35°)	2.15	15.17	1.06	26.27
Trapezoid (20°)	2.37	12.84	1.73	35.74
Trapezoid (35°)	1.49	21.12	1.15	40.77
Reverse (20°)	2.03	17.68	1.26	29.21
Reverse (35°)	2.22	11.43	1.26	17.68