Stress and displacement pattern evaluation using two different palatal expanders in unilateral cleft lip and palate: a three-dimensional finite element analysis

Table 3 Displacement (mm) at the alveolar level in all three axes

Alveolar level	Conventional HYRAX rapid maxillary expander						Bone-borne palatal expander
	Cleft side			Non-cleft side			Cleft side			Non-cleft side
	X-axis	Y-axis	Z-axis	X-axis	Y-axis	Z-axis	X-axis	Y-axis	Z-axis	X-axis	Y-axis	Z-axis
Canine region	0.06330	0.04582	0.04773	0.01203	0.01447	0.09143	0.11031	0.04787	0.06464	0.01189	0.03510	0.05406
Pre-molar region	0.06619	0.04656	0.05108	0.01108	0.01339	0.01260	0.1106	0.04522	0.07426	0.01409	0.03875	0.06320
Molar region	0.06764	0.04434	0.06751	0.08868	0.01077	0.01338	0.10636	0.04206	0.08959	0.01444	0.03372	0.08486