Influence of Thread Pitch, Helix Angle, and Compactness on Micromotion of Immediately Loaded Implants in Three Types of Bone Quality: A Three-Dimensional Finite Element Analysis

Table 3

Displacement of five implants under vertical load (𝜇m).

Thread pattern	D2		D3		D4
	VD	CD	VD	CD	VD	CD
Single-threaded
Single 0.8 mm pitch	4.797	4.8	8.537	8.774	18.329	18.543
Single 1.6 mm pitch	7.146	7.236	14.401	14.549	32.711	32.782
Single 2.4 mm pitch	7.29	7.353	15.873	15.916	35.785	35.940
Double-threaded	5.676	5.739	11.026	11.245	24.663	24.765
Triple-threaded	5.758	5.832	12.174	12.219	26.773	26.931

VD: the vertical relative displacement; CD: the comprehensive relative displacement; D2–D4: varying types of bone (D2 has the highest density; see Section 2).