Modul control “Propedeutic of Prosthetic Dentistry”
1 / Nickel is added into composition of stainless steel to ensure some properties, namely?A. Increasing of melting temperature
B. Decreasing of melting temperature
C. Increasing of plasticity and malleability
D. Decreasing of durability
E. Increasing of durability
2 / There are two types of condylar displacements during mandibular movements. What are they?
A. Rotation in lower part and sliding in upper part
B. Sliding in lower part and rotation in upper part
C. Circular shift in upper part
D. Circular shift in lower part
E. Another displacement
3 / What dental equipment is applicable for injection of novel anaesthetics?
A. Non-permanent plastic syringe 1ml
B. Non-permanent plastic syringe 2 ml
C. Insulin syringe
D. Carpule syringe
E. All answers are wrong
4 / What method of additional examination enables to check quality of selective polishing (grinding)of teeth?
A. Occlusiography
B. X-ray examination
C. Masticatiography
D. Gnathodynamometry
E. Masticatory tests
5 / What masticatory muscle extends from neck of mandibular condylar process to the fossa pterygoidea?
A. M. pterygoideus medialis
B. M. masseter
C. M. temporalis
D. M. pterygoideus lateralis
E. M. digastricus
6 / Which tooth according to method of masticatory efficiency determination after Agapov is accepted as a single digit of masticatory efficiency?
A. Central incisor of upper jaw
B. Canine of upper jaw
C. Lateral incisor of lower jaw
D. Wisdom tooth
E. Lateral incisor of upper jaw
7 / Material for stamp fabrication during crown swaging?
A. Chromecobalt alloy
B. Stainless steel
C. Gold alloy
D. Fusible alloy (melot)
E. Nickeltitanium
8 / What is the proper sequence of data obtaining?
A. Complaints, anamnesis of decease, anamnesis of life, anamnesis of family
B. Anamnesis of life, professional anamnesis
C. Anamnesis of desease, anamnesis of life, complaints
D. Family anamnesis, pathology of orofacial region
E. Anamnesis of life, anamnesis of desease, pathology of masticatory system
9 / Minimal amount of population for 1 prosthetic dentist staff position?
A. 5 000
B. 10 000
C. 15 000
D. 20 000
E. 25 000
10 / During swaging metals usually loss their properties. What process is helpful to improve these properties?
A. Heat treatment
B. Cooling
C. Mechanical reprocessing
D. Bleaching
E. Chemical reprocessing
11 / What is average distance between cutting edges of upper and lower incisors at maximal mouth opening?
A. 3 cm
B. 2 – 2,5 cm
C. 6 – 7cm
D. 4,5 – 5 cm
E. 8 – 10 cm
12 / What is the purpose of aspiration test during injection of anaesthetic?
A. For prevention of nerves damage
B. For prevention of soft tissues damage
C. For prevention of intravessel injection
D. For providing of intravessel injection
E. All of the listed
13 / Clinical situation: lower teeth inclined vestibulary and overlap the opposite maxillary teeth. What type of bite in such case?
A. Mesial bite
B. Orthognatic bite
C. Opened bite
D. Deep bite
E. Prognatic bite
14 / What is the proper variety in classification of impression materials according to their condition after hardening?
A. Hardcrystalline, heatresistant, thermoplastic
B. Heatresistant, thermoplastic, elastic
C. Hardcrystalline, elastic, hard
D. Hardcrystalline, thermoplastic, elastic
E. Alginate, silicone
15 / Interrelation of dental arches at the state of central occlusion is defined as…?
A. Articulation
B. Bite
C. Pathologic bite
D. Physiologic bite
E. Another definition
16 / Sterilization method for dental handpieces?
A. Cleaning with chloramine 1% solution two times after 15 min
B. One time cleaning with ethanol 96% solution
C. Two time cleaning with peroxyd of hydrogen 3% solution
D. Two time cleaning with ethanol 40% solution
E. Autoclave sterilization ( 60 min, 120°C)
17 / What is the purpose of diagnostic models fabrication?
A. For examination of dental arches, measuring of width of dental arches
B. For examination of occlusion contacts between teeth
C. For examination of dentition deficiencies
D. For treatment control
E. All of listed is correct
18 / What is anaesthetic carpules volume?
A. 2-2,5 ml
B. 1,7-1,8 ml
C. 1-1,2 ml
D. 0,5
E. 5ml
19 / What anatomical points does sagittal occlusal curve of Spee connect?
A. Vestibular and oral cusps of contralateral teeth
B. Tops of lower teeth ( from canine to third molar) forming concave line
C. Cutting edge of central incisors and cusps of third molar tooth
D. Points of sagittal incisors way
E. Wing of nose and eye
20 / 36 and 46 teeth are lost in young patient. What is the remaining value of the masticatory efficiency after Agapov?
A. 60%
B. 70%
C. 76%
D. 80%
E. 85%
21 / Which of the listed is a modelling material?
A. Gypsum
B. Wax
C. Silicone elastomers
D. Metal alloys
E. Plastic compounds
22 / What is the first step of patient examination?
A. Extraoral examination
B. Intraoral examination
C. Anamnestic data otaining
D. Examination of dentitions
E. Examination of oral cavity mucosa
23 / What plane is defined as occlusal?
A. Plane which passes through cutting edges of central incisors and lateral cusps of third molars
B. Plane that is parallel to vestibular surface of central incisors
C. Plane which divides head into two parts (left and right)
D. Plane that is parallel to lower lip
E. Except of all listed
24 / Line of Kamper was proposed to connect…?
A. Lower edge of nose and upper edge of ear
B. Lower edge of wing nose and Tragus auricularis
C. Tip of nose and ear
D. Tip of nose and lower of orbital edge
E. Another answer
25 / What term characterizes forward mandibular displacement?
A. Retrusion
B. Laterotrusion
C. Protrusion
D. Physiology rest position
E. Another answer
26 / Which impression materials are used for double impressions?
A. Gypsum
B. Alginate
C. Silicone elastomers
D. Thermoplastic compounds
E. Hydrocolloid
27 / Which alloys are determinated as fusible?
A. Alloys with melting temperature 40°C
B. Alloys with melting temperature 1100°C
C. Alloys with melting temperature 500°C
D. Alloys with melting temperature less than tin melting
E. Alloys with melting temperature more than temperature tin melting
28 / base metals casting alloys chromium, cobalt and nickel content is to be…?
A. 70%
B. 85% and more
C. 3%
D. 100%
E. 43%
29 / Alloy “Melot” belongs to…?
A. Stainless alloy
B. Gold alloys
C. Fusible alloys
D. Silverpalladium alloys
E. Refractory alloys
30 / Chemical nature of silicone elastomers vulcanization process?
A. Crystallyzation
B. Polycondensation
C. Crystallyzation and polycondensation
D. Polymerization
E. Gel setting
31 / For what types of denture construction gold (90%)based alloys are used?
A. Swaged crowns
B. Cast crowns
C. RPD
D. Clasps
E. Soldering substance
32 / Occlusal curve after Wilson corresponds to the?
A. Sagittal occlusal curve
B. Transversal occlusal curve
C. Vertical occlusal curve
D. Frankfurt horizontal line
E. Another curve
33 / What type of impression tray is recommended for impression with alginate material?
A. Metallic nonperforated tray
B. Plastic nonperforated tray
C. Perforated tray
D. Individual tray
E. Partial tray
34 / What type of gold alloy is used for onlays, inlays and other cast restorations?
A. 90% gold alloy
B. 75% gold alloy
C. 100% gold
D. 58,5% gold alloy
E. 33,3 gold alloy
35 / What arch is the narrowest on the lower jaw?
A. Dental arch
B. Alveolar arch
C. Basal arch
D. All arches similar
E. Cheek-bone arch
36 / What muscular complex contraction initiates downward mandibular movement?
A. M. pterygoideus lateralis, mimic muscles
B. M. digastricus, M. mylohyoid, M. geniohyoid
C. M. masseter, M. temporalis, M. digastricus
D. M. masserer, M. pterygoideus medialis, M. temporalis
E. Some other
37 / Mandible undergoes three directional movements. In what planes tthey are traced?
A. Frontal, horizontal, sagital
B. Frontal, vertical, sagital
C. Transwersal, horizontal, vertical
D. Occlusal, vertical
E. Another planes
38 / Line of Kamper is parallel to the…?
A. Occlusal plane
B. Middle line of body
C. Sagittal incisors way
D. Sagittal condylar way
E. Another answer
39 / Chromiumcobalt based alloy is composed of?
A. Cobalt, chrome, nickel, iron
B. Cobalt, titanium, nickel, carbon, manganese
C. Cobalt, chrome, nickel, manganese, molybdenum
D. Chrome, silver, iron, titanium
E. Chrome, nickel, titanium, carbon, gold
40 / What muscles attach to the upper jaw?
A. Mimic muscles
B. Masticatory muscles
C. Mimic and masticatory muscles
D. M. pterygoideus medialis et lateralis
E. All of the mentioned
41 / In what direction mandibular movement occurs as a result of working M. pterygoideus lateralis contraction on the right side?
A. To the right
B. To the left
C. Forward
D. Backward
E. No movement
42 / Which group is composed as elastic impression materials
A. Silicone elastomers, alginate, plaster
B. Thermoplastic compounds, silicone elastomers, polyether
C. Alginate, polyether, plaster
D. Alginate, silicone elastomers, polyether
E. Thermoplastic compounds, alginate, plaster
43 / Temperature of thermoplastic compounds softening?
A. Temperature of oral cavity
B. 70 - 80°C
C. 50 - 70°C
D. Room temperature
E. 10 - 20°C
44 / Salt concentration in water solution to catalyze gypsum crystallization is?
A. 10%
B. 1%
C. 0,2%
D. 3%
E. 20 – 25%
45 / Masticatory efficiency is to be determinated by method after Rubinov. What is the mass of nut for chewing in this method?
A. 0,3 g
B. 1,5 g
C. 0,8 g
D. 1 g
E. 0,5
46 / Sterilization time and solution formula for dental mirrors?
A. 0,5% solution of sulfchloretyl during 20 min.
B. Triple solution during 30 min.
C. 6% peroxyd of hydrogen, 6 hours
D. 40% Ethanol solution, during 15 min
E. 0,01% chloramine 10 min.
47 / How to define functional impression?
A. Impression taken by standard tray with functional tests
B. Impression without functional tests
C. Impression taken by individual tray with functional tests
D. Impression taken with lips passive motions
E. Impression taken with cheeks and tongue passive motions
48 / Exact composition of 90% gold alloy is?
A. Gold – 90%, silver – 5%, copper – 5%;
B. Gold – 90%, silver – 6%, copper – 4%;
C. Gold – 90%, silver – 10%, copper – tracks;
D. Gold – 90%, silver – 4%, copper – 6%;
E. Gold – 75%, silver – 20%, copper – 5%.
49 / Material for swaged crown shells fabrication?
A. Chromiumcobalt based alloy
B. Nickeltitanium based alloy
C. Titanium alloy
D. Stainless steel
E. Silverpalladium based alloy
50 / 36 and 46 teeth are lost in young patient. What is the remaining value of the masticatory efficiency after Agapov?
A. 60%
B. 70%
C. 76%
D. 80%
E. 85%
51 / 45th and 47th teeth prepared with shoulders for metalceramic FPD. What type of impression material is preferable for quality impression?
A.Alginate
B. Gypsum
C. Silicone elastomers
D. Thermoplastic compound
E. Zincoxedeugenol
52 / Clinical situation: partial edentulism, 24th 25th teeth lost. Treatment: metalceramic FPD on 23rd and 26th abutment teeth. What imprints required for quality denture fabrication?
A. Working silicone impression of upper jaw, additional of lower jaw, and fixation of central occlusion.
B. Working and additional impressions
C. Partial imprints from both jaws
D. Anatomical impreesion of upper jaw and functional of lower jaw
E. Two functional impressions
53 / Chemical formula of substance is (СаSO4)2 х Н2О. Indicate this substance
A. Wax
B. Composite
C. Gypsum
D. Izocol
E. Bleaching solution
54 / Rate of gypsum crystallization depends on….?
A. t˚, mixing speed, adding of catalysts and inhibitors, dispersion of powder
B. t˚, mixing speed, mixing motions to right side
C. t˚, adding of dye, powder refinement
D. Adding of dye, catalysts and inhibitors
E. t˚, adding of inhibitors and flavours, mixing speed
55 / Application of catalysts in gypsum crystallization causes?
A. Increasing of crystallyzation rate and increasing of strength
B. Increasing of crystallyzation rate and decreasing of srtength
C. Decreasing of crystallyzation rate and increasing of strength
D. Decreasing of crystallyzation rate and decreasing of strength
E. Increasing of strength
56 / What is superhard gypsum?
A. β-modification of gypsum semihydrate
B. β-modification of gypsum hydrate
C. α-modification of gypsum semihydrate
D. Anhydrate of gypsum
E. Duohydrate of gypsum
57 / Silicone elastomers are based on?
A. Agar-agar
B. Salts of alginate acid
C. Eugenol
D. Polysulphide rubbers
E. Dimethylsiloxane
58 / Time of reproducible model obtaining from A-silicone impression?
A. Possible during 30 days
B. After 1 hour
C. Within day
D. After 5-10 hours
E. Impossible to obtain plaster model from A-silicone imprint
59 / Sterilization time for combined C-silicone impression in solution?
A. 5 min
B. 10 min
C. 20 min
D. 45 min
E. 90 min
60 / What is the proper sequence of the visual part in the examination of patients?
A. State of dentition, examination of mucosal membrane and extraoral examination
B. Extraoral examination, intraoral examination including examination of Vestibulum oris, dentition, bite and actually oral cavity mucosa
C. Examination of bite, examination of tongue and palatinum
D. Motions of mandible, bite, defects of dentitions
E. All answers are correct
61 / During examination of patient mobility of central incisor in two directions was noticed. What is the level of pathological mobility?
A. І
B. ІІ
C. ІІІ
D. ІV
E. Physiological mobility
62 / How the articulation is determinated?
A. Interrelations of dental arches with contact points between teeth
B. All dynamic and static positions of jaw and all possible spatial correlation between elements of masticatory system
C. Dentition closure
D. Location of mandible in physiology rest position
E. Another determination
63 / How the occlusion is determined?
A. Dentition closure
B. One of articulation positions with some biting contacts
C. Correlation of dentition at physiology rest position
D. Correlation of dentition at different mandibular movements
E. All of the listed
64 / What is the distance between heads of lower jaw condyles and incisor point according Bonville study?
A. 5cm
B. 8 cm
C. 10 cm
D. 15 cm
E. 12 cm
65 / Minimal amount of square meters required the dental operatory with 3 treatment units?
A. More than 21 м2
B. More than 30 м2
C. More than 42 м2
D. More than 28 м2
E. More than 18 м2
66 / How many dental technicians employments are adequate for 1prosthetic dentist staff position?
A. one
B. two
C. three
D. four
E. five
67 / Patient was observed with mobility of teeth(2nd degree) in frontal region of upper jaw. What type of impression material is of the first choice in such case?
A. Alginate
B. Silicone elastomers
C. Polyether
D. Gypsum
E. Thermoplastic compound
68 / Reversible hydrocolloid impression materials are used for?
A. Models duplication
B. Models fabrication
C. Fixation of temporary crowns
D. Fabrication of temporary crowns
E. Fixation of central occlusion
69 / After removal from oral cavity of alginate impression dentist left it for few hours on a table. What physical process occurred in impression material?
A. Polymerization
B. Adhesion
C. Cohesion
D. Shrinkage
E. Sublimation
70 / What physical processes occur during crystallization of gypsum?
A. Increasing of temperature and decreasing of volume
B. Decreasing of temperature and increasing of volume
C. Increasing of temperature and increasing of volume to 1%
D. Decreasing of temperature
E. Decreasing of capacity
71 / Metal alloys are divided by the melting temperature to?
A. Noble and ignoble
B. Black and coloured
C. Low temperature and fusible
D. Fusible and refractory
E. Refractory and low temperature
72 / How the incisors transposition during forward mandibular movement is caled?
A. Transversal incisors way
B. Sagital incisors way
C. Condylar way
D. Sagital condylar way
E. Another answer
73 / Patient complains of burning tongue and metallic taste in oral cavity. What additional method of examination is informated in such case?
A. Masticatiography
B. Electrometry
C. Galvanometry
D. Occlusiography
E. X-ray examination
74 / Temperature of thermoplastic compounds hardening?
A. 60 - 70°C
B. 50 - 60°C
C. 10 - 20°C
D. Room temperature
E. 37 - 40°C
75 / Zincoxideugenol impression materials are chosen for…?
A. impression for metalceramic dentures fabrication
B. impression of edentoluos jaws and for temporary fixation of crowns and FPD
C. permanent fixation of crowns and FPD
D. impression for inlays and onlays
E. models fabrication
76 / Hydrocolloid impression materials are based on?
A. Salts of alginate acid
B. Agar-agar
C. Eugenol
D. Zinc oxide
E. Synthetic rubber (collastic)
77 / Thiokol-type impression materials are based on?
A. Agar-agar
B. Salts of alginate acid
C. Eugenol
D. Polysulphide rubbers
E. Dimethylsiloxane
78 / What diameter of casting channels is reasonable for the best quality of metal constructions casting?
A. 0,5-1,0 mm
B. 1,0-1,5 mm
C. 2,0-2,5 mm
D. 2,5-3,5 mm
E. 3,5 and more
79 / Components of stainless steel are?
A. Iron, copper, gold, silver
B. Iron, nickel, chromium, titanium, carbon
C. Iron, chromium, titanium, copper
D. Iron, chromium, carbon, manganese
E. Iron, titanium, nickel, oxygen.
80 / Which element provides corrosive ressistance in stainless steel composition?
A. Iron
B. Nickel
C. Titanium
D. Chromium
E. Carbon