Bone Abstracts

The aim of this study was to evaluate the adsorption of salivary proteins on giomer (Beautifil II) and composite resin (Filtek Z350).

Three discs (5 mm diameter and 1 mm height) were prepared for each material. Three discs were immersed in 1 ml? of human saliva within polyethylene tube and stored at room temperature. Evaluations were performed by Bradford method and SDS gel electrophoresis for analysis of salivary protein adsorbed on giomer and composite resin.

The results can be summarized as follows:

1. The mount of salivary proteins adsorbed on giomer was more than that of adsorbed on composite resin.

2. These proteins of 14, 20, 25, 55 and 66 kDa molecular weight were different between giomer and composite resin.

3. Lysozyme/cystatin and PRPs are more adsorbed on composite resin than giomer.

4. α-amylase and albumin are more adsorbed on giomer than composite resin.

There are quantitative and qualitative differences of salivary protein adsorbed on between giomer and composite rein. These data offer understanding of relationship between salivary proteins and dental mateials. We will conduct further study to determine the correlation of salivary protein and bacterial adhesion.