1. Lipopolysaccharide penetration analysis of two different resin cement systems to dentin and ceramic surface
- Author
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Won-Jang Jin, Yeon-Jee Yoo, Jeong-Kil Park, and Deog-Gyu Seo
- Subjects
Ceramic ,Dentin ,Lipopolysaccharide penetration ,Self-adhesive resin cement ,Dentistry ,RK1-715 - Abstract
Background/purpose: One of the challenges in adhesive ceramic restorations is deterioration of tooth-cement-ceramic interfaces. This study was to quantitatively investigate lipopolysaccharide (LPS) penetration through adhesive ceramic restorations. Materials and methods: Standardized holes were formed on ceramic (IPS Empress CAD, Ivoclar Vivadent) and human dentin discs. Prepared discs were randomly assigned to experimental groups (n = 6/group): SC, self-adhesive resin cement (SmartCem 2, Dentsply Sirona) bonded to ceramic discs; ST, self-adhesive resin cement bonded to dentin discs; VC, etch-and-rinse resin cement (Variolink II, Ivoclar Vivadent AG) bonded to ceramic discs; VT, etch-and-rinse resin cement bonded to dentin discs. The specimens underwent thermocycling (10,000 cycles; 5–55 °C) then LPS penetration test until 5-weeks. A mixed effect analysis using R statistical language was performed for data analysis. Results: Dentin and ceramic bonded with etch-and-rinse resin cements (groups VT and VC) showed significantly less penetration than those with self-adhesive resin cement (groups ST and SC) (P 0.05). VC showed minimal penetration during observed time of period (P more...
- Published
- 2023
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