Table 5.

EDX investigation results of the accelerated degradation samples

Degradation Period	C (atom-%)	O (atom-%)	Ca (atom-%)	P (atom-%)
Control	56.87	40.83	1.43	0.87
24 h	58.85	38.79	1.56	0.80
72 h	56.31	41.15	1.58	0.95
1 week	56.61	40.57	1.88	0.94
2 weeks	56.05	41.57	1.49	0.88
3 weeks	56.36	40.98	1.68	0.97
4 weeks	56.07	41.35	1.62	0.96