The influence of four dual-cure resin cements and surface treatment selection to bond strength of fiber post

Abstract

Sandblasting of glass fiber posts could enhance resin cement adhesion during tooth restoration, as scientists in China suggest. During endodontic treatment, such as root canal surgery, teeth must be hollowed out and rebuilt. Glass fiber posts and resin cements can replace lost structural support, but weak bonding between them can lead to restoration failure. In a study using human teeth, Chang Liu and co-workers at Jilin University in China analyzed the bonding of four different resin cements under different conditions. The type of resin cement significantly affected bonding to the posts regardless of pre-treatment, with two cements outperforming the others. However, one type of cement, called DMG Luxacore, adhered far better to the post following small-scale sandblasting. The sandblasting roughens the glass surface, increasing both the bonding area and interlocking between post and cement.

Keywords

air abrasion / field emission scanning electron microscope / micro push-out bond strength / silane / surface pre-treatment

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