17 Questions
What is the main purpose of etching in an adhesive system?
To increase the surface energy of the substrate
What is the typical concentration of phosphoric acid used for etching enamel?
30-40%
What is the primary purpose of the primer in an adhesive system?
To increase the wettability of the adhesive
What is the importance of dentin moisture when using an adhesive system?
Dentin should be slightly moist
What is the primary function of etching dentin?
To remove the smear layer and expose collagen fibers
What is the purpose of continuously rubbing the primer on the surface?
To improve the penetration of the primer into the collagen fibers
What is the purpose of solvent removal by air-drying in dental adhesive systems?
To remove solvents from the adhesive system
Which of the following monomers are considered hydrophobic in dental adhesive systems?
Bis-GMA and UDMA
What is the purpose of the hybrid layer in dental adhesive systems?
To create a resin-infiltrated zone within the dentin
Which generation of dental adhesive systems was the first to bond to the smear layer instead of the dentin surface?
Second generation
What is the purpose of minimal invasive cavity preparation in dental adhesive systems?
To preserve as much tooth structure as possible
Which generation of dental adhesive systems was the first to bond not only to tooth structure but also to dental metals and ceramics?
Third generation
What is the adhesion strength to dentin for 4th generation adhesive systems?
17-25 MPa
What is the key characteristic of 5th generation adhesive systems?
Single component in a single bottle
What is the disadvantage of the total etch (etch and rinse) technique?
All of the above
What is the main difference between self-etch and etch & rinse adhesive systems?
Self-etch demineralizes enamel and dentin at the same time, while etch & rinse etches them separately
What is the key characteristic of 7th generation adhesive systems?
Single bottleno mixing
Test your knowledge on adhesive systems in dentistry, focusing on topics like etching, priming, and bonding. Learn about the process of surface demineralisation, increasing surface energy, and creating a strong bond with the substrate.
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