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5)Adhesive Systems in Dentistry Quiz

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Questions and Answers

What is the main purpose of etching in an adhesive system?

To increase the wettability of the adhesive
To create a mechanical bond
To increase the surface energy of the substrate (correct)
To dissolve the smear layer

What is the typical concentration of phosphoric acid used for etching enamel?

50-60%
15-30%
40-50%
30-40% (correct)

What is the primary purpose of the primer in an adhesive system?

To increase the wettability of the adhesive (correct)
To dissolve the smear layer
To create a mechanical bond
To increase the surface energy of the substrate

What is the importance of dentin moisture when using an adhesive system?

Dentin should be slightly moist (B) Signup and view all the answers

What is the primary function of etching dentin?

To remove the smear layer and expose collagen fibers (C) Signup and view all the answers

What is the purpose of continuously rubbing the primer on the surface?

To improve the penetration of the primer into the collagen fibers (C) Signup and view all the answers

What is the purpose of solvent removal by air-drying in dental adhesive systems?

To remove solvents from the adhesive system (C) Signup and view all the answers

Which of the following monomers are considered hydrophobic in dental adhesive systems?

Bis-GMA and UDMA (B) Signup and view all the answers

What is the purpose of the hybrid layer in dental adhesive systems?

To create a resin-infiltrated zone within the dentin (C) Signup and view all the answers

Which generation of dental adhesive systems was the first to bond to the smear layer instead of the dentin surface?

Second generation (B) Signup and view all the answers

What is the purpose of minimal invasive cavity preparation in dental adhesive systems?

To preserve as much tooth structure as possible (C) Signup and view all the answers

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 (C) Signup and view all the answers

What is the adhesion strength to dentin for 4th generation adhesive systems?

17-25 MPa (C) Signup and view all the answers

What is the key characteristic of 5th generation adhesive systems?

Single component in a single bottle (A) Signup and view all the answers

What is the disadvantage of the total etch (etch and rinse) technique?

All of the above (D) Signup and view all the answers

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 (D) Signup and view all the answers

What is the key characteristic of 7th generation adhesive systems?

Single bottleno mixing (A) Signup and view all the answers