Credit Test Preclinical dentistry III. Name: Date: Number of points /%: 1. Following pictures show one tooth. You can recognise number of roots, vestibular and palatal view as well as occlusal surface (or incisal edge). One view is proximal. Write down the name of the tooth (e.g. - upper right central incisor, first lower left premolar). 2. Cingulum basale / a) is a part of a permanent insicor b) can be find at the bottom of the pulp chamber in molars £cľ) is one of typical signs of decidouos teeth 3. Write down five possible symbols of left upper second premolar: 4. Teeth from left and right side of the dental arch can be recognised by a) x- ray only Q) signs of root, angle and curvature c) number of vestibular roots 5. Dentin contains (a) 70% inorganic substances, 20% organic substances, 10% water b) 90% inorganic substances, 5% collagen, 5 % water c) 50% Hydroxylapatit and 50% keratin 6. The main reason of dental caries is (a) dental biofilm (plaque) b) dental calculus c) microbs in saliva 7. The first stage of the dental caries is a) any white spot on tooth surfaces £B) non cavitated lesion c) erosion 8. Treatment of dental caries a) is based on intensive fluoridation b) is based on preparation and filling /eT) depends on the stage of dental caries d) Preparation and filling is a mandatory procedure during the treatment of e) erosion f) non cavitated lesion (gy cavitated lesion 10. According to its depth dental caries can be ($ superficialis, media and pulpae proxima b) penetrating and undermining 11. According to its history dental caries can be: a) superficialis, media and pulpae proxima b) penetrating and undermining (c>) acute and chronic 12. Acording to its propagation dental caries can be a) superficialis, media and pulpae proxima (^.penetrating and undermining c) acute and chronic 13. The principle of bonding of composites to the hard dental tissues is ("a) micromechanical connection b) macromechanical connection c) chemical connection 14. Caries danger areas (predictable dirty areas) are (a)) a cervical third of the clinical crown, proximal surfaces under the contact point, pit and fissures. b) cusps and proximal ridges c) cervical third of the root surface, proximal spaces, incisal edges. 15. Tick the permanent filling materials Wax, composites, zinoxidsulphate cement, zinkoxidphosphate cement, amalgam, guttapercha, gypsum, glasionomers. 16. Zinkoxidphosphate cement is a) a temporary filling material only b) a permanent filling material (0 a temporary filling material, a material for base, luting material and sometimes also a root canal filling material. 17. The retentive border must be prepared (a) for composites in class III., IV. and V. cavities. b) all definitive materials c) glasionomers 18. The most suitable material for the class five cavity which si situated in enamel is £aY composite b) glasionomer / 19. Maximum rpm in electromotors is (a) 40.000 b) 400.000 c) 160.0000 20 The gear (transmission of speed) of the red coded handpiece is 1:5 b) 1:4 c) 2: 1 21. Main components of amalgam are (a) mercury, silver, tin, copper and/or zinc b) copper and silver dissolved in mercury c) silver, platinum and copper mixed with mercury 22.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 23. Main components of glasionomers are (a) baryum aluminium silicate glass powder and polyacrylic (or polymaleic or copolymer) acid b) glass powder and a resin monomer c) magnesium suplphate and polyacrylic acid 24. Ivory 8 is a) a matrix band £b) a matrix retainer c) a special form for composites 25. Wooden wedges are necessary a) in class 1. fillings (b) for stuffing and good adaptation of any matrix band, separation of teeth and compression of gingiva c) for good adaptation of the matrix band in class II. and class V. cavities. 26. Circle is a symbol for b) K-File c) Reamer 27. Triangle is a symbol for Reamer e) K-File f) Pulpextractor 28. The instrument in the picture is a) K- reamer (B> H-file c) K-file 29. The sequences of operations during the endodontic treatment are: (a), opening of the pulp chamber, opening of the root canals, canal shaping, canal cleaning, canal filling b) canal shaping, canal irrigation and canal filling c) opening of the pulp chamber, reaming, filing, filling. 30. Lateral condensation is a method of root canal filling using a) compaction of heated guttapercha with a lateral condensor (B)' guttapercha cones in combination with the sealer - one cone is pressed to each other using a spreader c) guttapercha cones pressed together with the sealer using a plugger 31. Calcium hydroxide is used as a) a lining material for isolation of dental pulp (\>y a material for pulp capping and a temporary root canal filling c) a material for healing of the dentin wound (ä) anaesthesia on foramen mandibulare, foramen mentale, foramen infraorbitale, foramen incisivum, froamen palatinum majus and on tuber maxillae b) infiltration anesthesia including anaesthesia on foramen mandibulae and infraorbitale c) mucosal anaestheisa 33. Instruments for suture are a) needle, suture (needle) holder, tweezer and scissors b) needle, forceps, scissors, suture material (c) suture material, needle, needle (suture) holder, tweezer and scissors 34. Sterilization is (a) a procedure killing of kind of microbs b) a procedure killing pathogens c) a procedure of cleaning of operation field 35. Asepsis is a procedure a) killing all pathogens (fi) which does not allow any microbs penetrete into the operation field c) cold sterilization 36. Class 1 according to Voldřich is (a)) a dental arch with gaps b) a reduced dental arch c) a reduced dental arch with gaps 37. Biological factor is (aj a comprehension of factors influencing the quality of the abutment tooth b) the periodontal status of the abutment tooth c) the quality of the endodontic treatment of abutment teeth 38. Fixed dentures are: a) crowns and bridges 0 inlays c) complete denture 39. Canines are pilots (a) class 1 b) class 2 c) class 3 40. The method of „lost wax" / 48. Thick main dental materials Wax, gypsum, resin, metal alloys, ceramics, shelack. 49. For bite registration a) Wax impression is used b) Bite template is used (c) Wax for occlusal impression or bite template is used 50. The instrument in the picture below is (a} extraction forceps - for maxillary molars b) extraction forceps for mandibulary molars c) special forceps for third mandibulary molars