Table 5.

Predicted stress and number of cycles to failure for dentin when debonding was considered.

	i	Load (N)	n i	σD’ (MPa)	N D ’	$\sum _{i=1}^h\frac{n_i}{N_i}$
Before debonding	1	100	1000	8.78	1.95E+16	2.79E-16
	2	200	1000	17.56	1.88E+11	2.90E-11
	3	300	1000	26.35	2.18E+08	2.50E-08
	4	400	3000	35.13	1.80E+06	9.05E-06
After debonding	5	450	3000	45.86	3.90E+06	7.69E-04
	6	500	3000	50.19	8.67E+05	3.46E-03
	7	550	3000	55.21	1.77E+05	1.69E-02
	8	600	3000	61.07	3.30E+04	9.10E-02
	9	650	3000	67.56	6.12E+03	4.90E-01
	10	700	3000	73.37	1.55E+03	1.94E+00
	11	750	3000	80.12	3.57E+02	8.40E+00
	12	800	3000	85.08	1.31E+02	7.62E+01
	13	850	Until fracture	91.96	3.59E+01