1. Name the main parts of teeth and dental tissues in the picture below:



2. Write down all possible symbols of


Upper  canine left


First upper (maxillary)  molar  right


Second lower (mandibulary)  incisor left




3. Name the teeth:


+4


 4 -


16


27


6-


7+



4. Gypsum is


a)      calcium sulphate

b)      calcium sulphate dihydrate

c)      calcium sulphate hemihydrate


5. Describe the mechanism of setting of gypsum.



6. The setting time of gypsum influence

a)      spatulation

b)      temperature of water

c)      both



7. Dental caries

a) is caused by microbs  on oral mucosa

b) is caused by microbs producing acids from sugar, these microbs are in dental biofilm

c) microbs do not play a key role, the most important thing  is sugar uptake



8. Class II. acc to Black is


a)      pit and fissure caries

b)      caries on proximal surfaces premolars and molars

c)      caries in cervical srea



9. Habitually clean areas are:




10. Principle of setting of  composites is


a)      polymerization

b)      acid-base reaction

c)      crystallization




11. Principle of connection berween hard dental tissues and  glassionomer is


a)      micromechanical

b)      macromechanical

c)      chemical



12. The material of the firs choice for clas II. acc to Black is


a)      amalgam

b)      glassionomer

c)      composite



13. The gear of the blue coded handpiece is


a)      1:5 to fast

b)      1:1

c)      2,7 :1  to slow


14.   Red  coded diamond bur is

a)      extra coarse

b)      coarse

c)      standard

d)      fine


15. Tick  temporary filling materials:


Glassionomer cement, guttapercha, zinkoxidphosphate cement, composite, zinkoxideugenol cement,
amalgam, wax.


15.  Conditioning is a step by


a)      making amalgam filling

b)      composite filling

c)      glassionomer filling



16.  Enamel  contains


a)       70% inorganic substances, 20% organic substances, 10% water

b)      98% inorganic substances, 2 %  organic substances and water

c)       50% Hydroxylapatit and 50% keratin



17. Zinkoxieugenol cement is


a)       a temporary filling material only

b)      a  permanent filling material

a temporary filling material, it can be used also for root canal filling in deciduous teeth




18. Main components of composites are


a) organic matrix  (Bowen’s monomer and other dimetacrylates) and inorganic filler
(aluminiumsilicate glass, silica particles and others)  bonded together with a silane

b) dimethacrylate resin with addition of inorganic  particles without any chemical bonding

c) methylmatecrylate mixed with silica particles



19. The most suitable material for the V. class  cavity which si situated  out of enamel is


     a) composite

     b) glasionomer

     c) amalgam


20. When and why do we  use a conditioner?





21. How thick must be the amalgam filling on the occlusal surface?




22. What is PBI index?




23. What does it mean extension for prevention?




24. What is recurrent caries?




25. Which instruments do we use for excavation of carious dentin?