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1. A 57 year old patient complains about mobility of his metal-ceramic dental bridge supported
by the 33, 37 teeth. The bridge has been in use for 9 months. Objectively: X-ray picture
shows alveolar process atrophy by 2/3 in the area of the 33, and by 1/2 of root length in
the area of the 37; there are pathological pockets, gingivitis. What is the cause of
pathological mobility of supporting teeth?
A *Functional shifting of supporting teeth under stress
B Injuring of circle ligament by crown edges
C Devitalization of supporting teeth
D Massive grinding off of hard tissues
E Garland modelling in the precervical area
2. Female patient complains of pain in the gingiva under bridge denture fixed on 14, 17. Examination data: pontic tightly contacts with mucosa, mucosa is edematic, hyperemic, painful, bleeding at touching. What mistake in pontic design was made?
A. *Type
B. Material
C. Width
D. Relief
E. –
3. What complication is avoided when pontic has hygienic design?
A. *Worsening of oral cavity hygiene
B. Mechanical trauma of the mucosa
C. Overload of alveolar bone
D. Local allergic reaction
E. Local chemical stomatitis
4. What is the purpose of narrowing the occlusal part of pontic?
A. *Reduction of masticatory load on abutment teeth
B. Reduction of masticatory load on pontic
C. Enhancing of articulation
D. Decreasing of bridge weight
E. Material saving
5. A metal-ceramic bridge is being planned for a patient with 22, 25 teeth as abutments. The mistake was made in selection of:
A. *Quantity of abutments
B. Denture localization
C. Type of denture
D. Material of denture
E. Type of fixation
6. The complications that occur while wearing bridge denture which is constructed on a curve are connected with harmful masticatory load. What indicators of masticatory load are the main in this process? A – force, B – direction, C – time
A. *A+B
B. А+В+С
C. A
D. B+C
E. B
7. A patient complains of pain in 32 tooth which appeared in 3 months after bridge cementation (abutments – 32, 35). Examination data: percussion of 32 is painful (more the horizontal), marginal mucosa slightly hyperemic. The quality of the denture meets the requirements. What is the first reason of complication?
A. *Functional overload
B. Inadequate preparation
C. Trauma with food
D. Occlusal contact
E. Material of the denture
8. While examining the cast bridge denture shrink-spot porosity was revealed in pontic. Tell the reason of it:
A. *Lack of metal out of casting
B. Excess of metal out of casting
C. Presence of air in casting form
D. Sharp cooling of casting
E. Not enough heating of casting form
9. Patient is being made swaged-soldered denture with 37, 35 teeth as abutments. Doctor was delivered gypsum dies with swaged crowns for the fitting appointment. Occlusal surfaces of crowns have rather high cusps. This can cause –
A. *Traumatic occlusion
B. Pulpitis
C. Crowns fracture
D. Changing of bite
E. Antagonists wearing
10. A patient complains of unpleasant odor from the mouth. Examination data: swaged-soldered bridge denture on the upper jaw with 27, 26 as abutments. Pontic tightly contacts with mucosa, mucosa is edematic, hyperemic. What is the reason of this condition?
A. *Wrong correlation of pontic to mucosa
B. Acute condition of chronic periodontitis
C. Allergy on metal
D. Poor hygiene
E. Long crowns
11. A patient is being made soldered bridge. Doctor revealed multiplied holes in crowns while assessing them. What technological process was failed?
A. *Bleaching
B. Soldering
C. Annealing
D. Swaging
E. Calibrating
12. A patient is being made cast bridge with abutment on 27, 25 teeth. Appointment of framework fitting. Examination data: presence of cast porosity on the surface of framework 0.3 mm in diameter. What is your decision?
A. *Recast the framework
B. Porosity can be soldered
C. Fix next appointment
D. Polish the porosity
E. Bleach the porosity
13. While having made bridge denture with 34, 36 as abutments, pontic design resulted in bedsores and unpleasant odor from oral cavity. What type of pontic design is reasonable in this case?
A. *Hygienic
B. Saddle
C. Ovate
D. Conic
E. Ridge lap
14. A patient is being made bridge denture with abutments on 36, 34. While modeling retainer crowns, dental technician didn’t restore contact points. What complication does it lead to?
A. *Traumatic papillitis
B. Interferences while chewing
C. Destruction of artificial crown
D. Loosening of abutment tooth
15. A patient came with complaints about pain in the area of bridge on 12, 11, 23, 24. Prosthetic appliance was made 3 days before. Examination: the mucous membrane of alveolar ridge in the area of prosthetic appliance is edematous, hyperemic. Health history: a patient suffers from allergy in an autumn-spring period. Doctor’s decision –
À) *to take off prosthetic appliance and make a new one;
B) to make occlusal adjustment;
C) to make new bridge with hygienic pontic design;
D) to appoint medical treatment;
E) to make articulating adjustment.
16. A 48-year-old patient complains of pain in the 32, 38 teeth which arose 3 months after
installing a dental bridge upon them. Objectively: the gums around the abutment teeth are
hyperemic, edematous, mobile in the vestibular-oral direction. What is the most likely cause
of this complication?
A *Functional overload of abutment teeth paradontium
B Improper preparation of abutment teeth
C The form of the intermediate denture part
D Contact of the denture with opposing teeth
E Solid food consumption
17. A 38-year-old patient consulted an orthopedist about metal taste, dry mouth and tongue
burning. Objectively: defects of the lower dental arch were replaced with soldered stainless
steel bridges. What examination method would be the most appropriate in this case?
A *Galvanometry
B Masticatiography
C Occlusiography
D Myography
E Electroodontometry
18. The mistake was made during tooth preparation. It leaded to occlusal initial contact. How to check occlusal reduction during preparation?
A. *Wax stripe
B. Width of capped blank
C. Wire loop
D. Strip of copy paper
E. Gypsum casts
19. Cantilever bridge was chosen to restore missing 16 tooth. Doctor used 15 as abutment, the missing tooth was modeled as premolar. What mistake was made?
A. *Quantity of abutment teeth is not enough
B. Denture construction is not correct
C. The size of missing tooth is not correct
D. Inadequate tooth preparation
E. Inadequate mouth preparation
20. A patient is being made cast bridge prostheses based on 35,37. Doctor prepared the teeth, took a partial bite impression, disinfected and transferred to the dental laboratory. Technician cast models that get into occlusion with a lock. When was a mistake made?
A. * impression taking
B. Teeth preparation
C. Pouring impressions
D. Interrelation models in occlusion
E. –
21. The most frequent complications at fixation of dental bridges:
A. * initial contacts and loosening of retainers.
B. gag reflex.
C. The mobility of the teeth with a prosthesis.
D. Injury to the mucous membrane of the gums.
E. secretion of a lot of saliva.
22. Patient complained of a metallic taste, dryness and redness of the mucous membrane of the upper jaw. Six months ago he had have bridges made of stainless steel and titanium nitride coating. What is doctor’s tactics?
* A. Additional examination, replacement of the bridge.
B. Make partial removable denture.
C. Conduct a therapeutic treatment.
D. Make immediate denture.
E. Make cast removable denture.
23. Odor, bleeding gums while brushing appeared in six months after prosthetics with combined solder-swaged prosthesis in a patient. Examination data: swaged-soldered bridge with facings on the lower jaw, facings fit tightly to the mucosa, which is hyperemic and bleeding when you touch it with probe. What is the cause of this complication?
A. * Swelling of plastic, pressing on the mucous membrane.
B. increased interalveolar height.
S. decreased interalveolar height.
D. The excess of solder.
E. Toxic stomatitis.
24. When you select the wrong number of abutment teeth for the bridge, there is:
A. * Overload of abutment teeth.
B. Caries.
S. Pulpitis.
D. Wedge defect.
E. Crown fracture.
25. To prevent chipping of plastic in the combined bridges the thickness of plastic should be:
A. * 1-1.2 mm
B. 0.3-0.4 mm
C. 0.4-0.5 mm
D. 0.5-0.8 mm
E. 0.2-0.3 mm
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