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