Influence of artificial saliva contamination on adhesion in class V restorations

Abstract

This study aimed to evaluate the effects of artificial saliva contamination on a glass ionomer cement (GIC), a resin-modified GIC (RMGIC), and a composite resin (CR) that was used with two different etching adhesive systems. Three surface conditions were created on bovine teeth using artificial saliva: control (group I), mild saliva contamination (group II), and severe saliva contamination (group III). The microtensile bond strength (μTBS) of CR with dentin was significantly lower in group III than in group I. However, the μTBS of GIC and RMGIC with both enamel and dentin showed no significant intergroup differences. Moreover, CR exhibited significantly greater microleakage on cementum in group III than in group I, whereas both GIC and RMGIC showed no significant differences for both enamel and cementum. Thus, GIC and RMGIC may be suitable for preventing secondary caries after class V restorative treatments when contamination by saliva cannot be avoided.

Effect of Contamination of Bulk-Fill Flowable Resin Composite with Different Contaminants during Packing on its Surface Microhardness and Compressive Strength: In Vitro study.

“…The US Food and Drug Administration (FDA) de ned ethanol as a liquid that simulates fatty foods and alcoholic beverages. In several studies, ethanol led to degradation or "softening" of composites and reduction of its microhardness [25]. It was previously revealed that ethanol has a more aggressive potential and causes higher water sorption and solubility than water or arti cial saliva [26].…”

Effect of contamination of bulk-fill flowable resin composite with different contaminants during packing on its surface microhardness and compressive strength: in vitro study

“…However, Cobanoglu et al [ 25 ] stated that when saliva encounters the dentin surface, a saliva layer is deposited on dentin surface; water is evaporated and leaves a glycoprotein layer. Likewise, Shimazu et al [ 26 ] found that the bond strength among composite resin layers is reduced when it is contaminated with saliva. Similarly, significant decrease of the compressive strength of resin composite contaminated with artificial saliva could be due to presence of organic adherent layer and other elements of saliva in between increments interfering with proper polymerization.…”

Evaluation of the effects of different remineralisation agents on initial enamel lesions by scanning electron microscope and energy‐distributed X‐ray analysis

“…The demineralisation solution was renewed daily. The prepared samples were kept in the demineralisation solution for 8 h/d until 13‐20 values had been obtained using DIAGNOdent, then stored in a dark environment in artificial saliva (prepared by the Atatürk University Faculty of Pharmacy) until the experimental materials were applied 24 …”