Influence of margin design and restorative material on the stress distribution of endocrowns: a 3D finite element analysis

Table 3 Group distribution according to the margin forms and restorative material type of the von Mises stress (MPa) obtained in restoration and tooth remnants

Model	Material	Restoration	Enamel	Dentin
A	Zr	26.19	17.75	27.80
	VS	24.43	17.83	27.80
	IE	21.89	17.93	27.79
	GR	11.36	18.38	27.79
	VC	8.94	16.43	27.79
	CP	8.46	26.40	27.78
B	Zr	16.85	16.43	20.86
	VS	17.35	16.53	20.86
	IE	16.85	16.54	20.86
	GR	9.29	18.04	20.86
	VC	9.53	18.44	20.86
	CP	8.47	21.94	20.86
C	Zr	20.61	15.83	27.91
	VS	17.62	15.70	27.90
	IE	15.77	16.29	27.89
	GR	10.20	20.34	27.89
	VC	10.27	21.53	27.89
	CP	8.49	25.66	27.89
D	Zr	27.94	18.00	27.83
	VS	26.06	18.12	27.83
	IE	22.11	20.15	27.83
	GR	12.61	37.95	27.82
	VC	12.78	40.27	27.82
	CP	8.69	54.04	27.01

A, flat butt joint margin; B, a 20° bevel margin; C, an axial reduction and 1 mm shoulder margin; D, anatomic occlusal preparation margin. Zr, In-Ceram Zirconia; VS, Vita Suprinity; IE, IPS Empress; GR, Grandio blocs; VC, VisCalor bulk; CP, CopraPeek Light

ISSN: 1472-6831