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 4

Displacement of five implants under horizontal load (𝜇m).

Thread pattern	D2			D3			D4
	VD	HD	CD	VD	HD	CD	VD	HD	CD
Single-threaded
Single 0.8 mm pitch	20.028	18.856	27.512	29.712	25.748	38.192	31.370	26.448	41.056
Single 1.6 mm pitch	21.388	18.984	28.598	37.142	30.053	48.278	39.620	31.405	52.410
Single 2.4 mm pitch	22.284	19.022	29.314	40.736	32.090	51.941	43.119	33.200	56.644
Double-threaded	20.282	18.850	27.84	33.497	26.838	43.124	35.257	28.193	46.436
Triple-threaded	20.490	19.006	27.956	35.833	27.121	45.943	38.035	29.641	49.804

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