Cario D1 S1 Quiz Study qs #3-1 PDF

Summary

This document contains a set of multiple-choice questions related to dental materials. Topics covered include glass ionomer cement, composite resins, and amalgam. The questions seem to be for practice or a quiz.

Full Transcript

1. Glass ionomer cement has better wear resistance than resin composite – false 2. Other than acid/base reaction, what other type of reaction takes place in RMGI? Polymerization 3. Which components are not part of RMGI cement? Eugenol 4. Composite won’t be the best choice because: will not adh...

1. Glass ionomer cement has better wear resistance than resin composite – false 2. Other than acid/base reaction, what other type of reaction takes place in RMGI? Polymerization 3. Which components are not part of RMGI cement? Eugenol 4. Composite won’t be the best choice because: will not adhere to the tooth due to the field not being dry for bonding to occur. 5. Excess amalgam you overfill and carve off: true 6. Fluoride enhances: Enolase 7. Dentin made by – odontoblasts 8. Enamel made by – ameloblast 9. Genetic disorder = amelogenesis imperfecta (holes in crown) 10. Which is highly mineralized order from lowest to high: pulp, then dentin and then enamel 11. Which is away from the pulp mantel dentin (not pre-dentin, not primary or second or tertiary dentin) 12. E2: inner 1/2 of enamel 13. Child needs: less than a pea size tooth paste for 3 years 14. Which coupling agent establishes a chemical bond between resin molecules and filler particles? Silane (or silicon) 15. Which of the following are photo-initiators? Camphorquinone & Lucerin and PPD 16. Curing light Valo: blue light 17. What is the average percentage of light transmission of enamel? 70% 18. Amalgam why is dry and crumbly? A. low mercury B. high mercury C. over titrated D. under treated (pick which ones): low mercury and under trituated 19. Less resin: less shrinkage 20. Which type of curing light came in your student issue: Light emitting diode (LED) 21. Maximum wavelength absorbed by camphoriquinone and what color does it absorb? 468nm, blue 22. Which of the following is an optical property of the tooth: flourecence, opalesecene, transuleceny, incisal valo (ALL OF THE ABOVE) 23. Flourescenece: Energy absorbed and emitted at longer wavelength 24. Once dried what should enamel look like: frosty and white 25. C-factor: # of bonded surfaces/#unbonded surfaces (lower C factor less stress on tooth) 26. The oxygen inhibiting layer has reduced mechanical and physical properties The oxygen inhibiting layer must be removed after placing each increment of composite? FIRST STATEMENT:TRUE SECOND: FALSE 27. Nano filled composite resins represent the most recent innovation. Their fillers are made mostly of inorganic nanoscale particles with a size of 100nm or above- FIRST STATEMENT: TRUE SECOND: FALSE 28. Enamel is 20% water & hydrophilic Dentin is only 1% water & hydrophobic BOTH STATEMENTS ARE FALSE 29. Hybrid Composite make up majority of composite resins available Hybrid Composite are comprised of inorganic polymer groups b/w 60-1000nm BOTH STATEMENTS TRUE 30. Polymerization of light cure system is initiated by: Benzoyl peroxide 31. Polymerization of light cure system: hardening of fillings 32. Bonding of enamel is influenced by EVERYTHING (AOB) (water, blood, sulcus fluid, saliva)

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