The authors wish to inform the readers of a needed clarification in this article:
In the last sentence of the discussion on page 738 there is a small typo: “degradation of BisGMA”; it should instead read “degradation of BisDMA ”.
Fig. 3 on page 736 and Fig. 4 on page 737: The release in Y -axis is mistakenly represented as μmol/mm 2 and μmol/mm 3 , respectively. This should be nmol/mm 2 and nmol/mm 3 , respectively.
The authors would like to apologize for any inconvenience caused.