The ultrastructure of a compomer adhesive interface in enamel and dentin, and its marginal adaptation under dentinal fluid as compared to that of a composite

摘要

Objectives: To visualise the ultrastructure of the interface of SCA compomer adhesive and of Optibond composite adhesive in enamel and dentin, and to relate the findings to the marginal adaptation of these two products in mixed class V restoations. Methods: The ultrastructure was investigated using a scanning electron microscope (SEM) with an without prior argon ion etching, an Environmental SEM, a field emission SEM, a confocal laser scanning microscope, and a transmission electron microscope.