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KROK 2 Dentistry 2010 Questions | KROKEXAM
Browse 2010 KROK 2 Dentistry exam questions with answers and explanations.
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A 42-year-old patient complains about general weakness. Body temperature is 41°C, he presents with sickness, emesis, dyspnea. There is evident well-defined skin redness in form of flame tips on her face. Submandibular lymph nodes are enlarged. What is the most likely diagnosis?
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A victim got a perforating wound of the left cheek contaminated with radioactive materials on the battlefield. The wound was dressed with aseptic bandage from the individual first-aid pack and processed with anaesthetic and antibacterial medicaments. The dressing should be changed at the following station of medical evacuation:
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Mother of a 6,5-year-old child consulted a dentist about checking fissure hermeti-zatioon of the 16, 26, 36, 46 teeth. They were treated six month ago. Sealant in the 36, 46 teeth is preserved, but sealant in the 16 and 26 teeth is absent. What is the tactics of choice?
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A 12-year-old boy complains about short-term pain in a lower jaw tooth on the right caused by cold stimuli. Objectively: the 46 tooth has a carious cavity on the masticatory surface within the circumpulpar dentine which has no intercommunication with the dental cavity. The cavity floor and walls are coated with light softened dentine. Cold test causes short-standing pain. What is the most likely diagnosis?
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A 12-year-old child complains about sore throat, headache, body temperature rise up to 38,5°C, rhinitis, cough in summer period. Objectively: mucous membrane of oral cavity is hyperemic, edematic. There are 10-15 erosions up to 0,5 mm large on the palate and palatine arches, that aren't covered with deposit and have red floor. Regional lymph nodes are enlarged and painful on palpation. What is the most likely diagnosis?
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A 43-year-old man complains about painful swallowing, limited mouth opening. Destroyed 37 tooth caused pain 3 days ago. Painful swallowing appeared the next day. Limited mouth opening was present a day later. Objectively: there is a small soft swelling in the left submaxillary area. An enlarged lymph node is palpated. The mouth can be opened by 1,5 cm. Edema of left palatine arch and pharynx lateral wall is present. The 37 tooth is destroyed. Mucous membrane around the tooth is edematic. Percussion is slightly painful. What is the most likely diagnosis?
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A 34-year-old male patient consults a dentist about an ulcer on the hard palate. It appeared about a month ago. He has treated it by rinsing with herbal water, but the ulcer is gradually "creeping". Objectively: there is a shallow erethistic ulcer with uneven and undermined edges of soft consistency within the mucous membrane of hard palate. Granulations of the ulcer floor are also present. Yellowish granules are visible on the ulcer periphery. What is the most likely diagnosis?
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A 27-year-old male patient underwent extraction of the medial root of the 36 tooth, but the distal tooth root was broken in its middle third. What tools should be applied for root extraction?
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A 55-year-old woman complains about liquid pouring through her nose during eating of fluid food. Objectively: there is a perforating defect of alveolar process 3x2,8 cm deep in the lateral part of the upper jaw at level with the extracted 16 tooth. The patient refused operative intervention. What construction should be offered?
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A 53-year-old patient was diagnosed with leucoplakia nicotinica Tappeiner. What pathohistological process predominates in histologic pattern of this disease?
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A 24-year-old female patient complains about hard tissues defect of the 21 tooth. Objectively: the 21 tooth is destroyed by 1/3 along the cutting edge, it is changed in color. X-ray picture shows that the root canal is filled to the top. It was decided to fabricate a plastic crown. Where should the crown edge be situated against the marginal gingiva?
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A 70-year-old male patient ordered complete removable dentures for both jaws. In the clinical stage he came for "identification of central relationship". For verification of interalveolar height the patient underwent speaking test. The patient was asked to pronounce the sounds "O", "E", "M". What distance should be between the occlusal rims for correct identification of interalveolar height?
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A 16-year-old male patient complains about pain in the oral cavity, ulceration, body temperatureup to 38°C, headache. Objectively: mucous membrane of the oral cavity is hyperemic and edematic. There are a lot of confluent erosions of polycyclic shape, covered with grey and white deposit, located on hard palate, gums, lips. What is your provisional diagnosis?
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An 8-year-old child was diagnosed with granulating periodontitis of the 55 tooth. The crown is completely destroyed. X-ray picture shows separated tooth roots. Choose an optimal tool for operative intervention:
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An 8-year-old boy was diagnosed with chronic fibrous pulpitis of the 21 tooth. It was treated by extirpation method. Choose the material for root filling:
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A 12-year-old female patient was diagnosed with open bite and dentoalveolar elongation of lateral part of mandible. What construction of apparatus is required?
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An 18-year-old patient complains about an aesthetic defect. Objectively: the lower teeth are set forward and overlap the upper antagonists. This symptom is typical for the following bite abnormality:
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A 70-year-old male patient complains about total teeth missing on both jaws. It is planned to fabricate a complete removable lower jaw prosthesis. Objectively: alveolar process of the lower jaw is atrophied only in the frontal aspect. Identify the type of lower jaw atrophy according to Keller's classification:
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A 18-year-old female patient ordered a metal-ceramic crown for the 24 tooth. It is necessary to choose an optimal impression material for combined impression of the upper jaw. What material should be used for a preliminary impression?
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A patient consulted a dentist about constant dull pain in the 38 tooth. Mouth opening is limited down to 1 cm. It is necessary to extract the 38 tooth. What kind of anesthesia should be applied for operation?
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One minute after perfoming torus anaesthesia with 2% novocaine solution (4ml) during extraction of the 17 tooth the patient complained about respiration obstruction. Objectively: upper and lower lips are edematic, mucous membrane of larynx and oral cavity is edematic and extremely hyperemic. What complication turned up in this patient?
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A 37-year-old male patient complains about pain of the 46 tooth during food intake, especially hot food, offensive breath when he sucks his tooth. Objectively: the face is symmetrical, masticatory surface of the 48 tooth has a deep carious cavity communicating with the dental cavity. X-ray picture shows widening of periodontal fissure at the root apex of the 46 tooth. What is the most likely diagnosis?
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A 17-year-old girl complains about painfulness and gingival hemorrhage during tooth brushing and food intake. She has been suffering from it for 1,5 year. She consulted a dentist. There was no considerable effect from treatment. Objectively: gingival papillae are flabby and cyanotic in the region of frontal teeth on both jaws, they overlay teeth crowns by 1/3-1/2 of their height, they bleed on touch. Therapeutic effect can be achieved by means of electrophoresis with:
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A 38-year-old female patient complains about pain in projection of the external acoustic meatus, clicking during mouth opening, ear stuffiness. Objectively: the face is symmetric, mouth is opened in staright path. There is Kennedy I type dentition defect, the 18, 17, 16, 26, 27, 28 teeth are missing. What anatomical formation carries the maximum load?
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Physical examination of a patient revealed a hard tissues defect of the 24 tooth. Index of occlusal surface destruction was 0,8. The defect was restored by filling that doesn't meet the requirements. The tooth is of rose colouring. X-ray picture shows no patological processes. What construction is indicated in this case?
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A 49-year-old male patient consulted a dental surgeon about an enlarging "mother's mark", itch and desquamation. According to patient, changed in color and size skin area appeared a year ago after a shaving trauma. Objectively: there is an intensely pigmented brown spot up to 2 cm large with small oval protruding nodules on its surface in the infraorbital region on the left. Desquamation factors are present. Palpation is painless. Regional lymph nodes are matted together with skin and painless. What is the most likely diagnosis?
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A soldier was delivered to the regiment medical station with dislocation asphyxia caused by a gunshot wound. What actions should be taken for asphyxia suppression?
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A 58-year-old male patient has considerable microstomia as a result of a face trauma and burn. The patient has indication for fabrication of a partial removable prosthesis. What construction of prosthesis should be used in this case?
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X-ray picture depicts a circular well-defined area of bone tissue destruction 0,7x 0,7 cm large in the projection of root apex. What is the most likely diagnosis?
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A 32-year-old patient complains about a cosmetic defect caused by partial teeth missing. Objectively: the 15, 14, 24, 25 teeth are missing, the central group of upper jaw teeth is in protrusion and presents with diasthemas. What orthodontic appliance should be used to prepare the oral cavity for prosthetics?
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A 35-year-old patient has teeth mobility of I degree, the teeth have apparent dental cusps. The dentist recommends to do occlusive teeth grinding. What method is the most objective for determining the grinding topography?
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A 3-year-old girl complains about pain and tumescence in the region of the decayed 51, 52 teeth, body temperature rise up to 37,5 — 37,9°C. Objectively: the face is asymmetric because of a tumescence in the upper lip region and right infraorbital region. The crown of the 51 tooth is completely decayed. Mucous membrane in the region of the 52, 51, 1 teeth is edematic, mucogingival fold is smoothed, palpation provokes pain, mobility of I-II-degree of the 51,52 teeth is also present. What is the most likely diagnosis?
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A 6-year-old boy hit his forehead one day ago. A few hours later a swelling appeared in the right superciliary region. Objectively: there is a considerable edema of forehead tissues spreading to eyelids of the right eye, the skin over the swelling is cyanotic, the swelling is of soft consistency. Fluctuation is also present. General condition of the boy is normal. Make a provisional diagnosis:
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A 45-year-old patient complains about pain in his mandible that arose after extraction of the 36 tooth. Objectively: alveolar socket is covered with bloody clot. X-ray picture shows unextracted root of the 36 tooth. What tools are necessary for extraction of this root?
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A 70-year-old patient consulted a dental surgeon about extraction of the central upper jaw incisors with III-degree mobility. What tools should be applied?
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A patient complains of pain and swelling in the right submandibular area. She has been treating the 45 tooth for a week. Objectively: body temperature is 38°C. There is a painful tense infiltration in the right submandibular region. The skin doesn't make a fold, its hyperemic and glossy. The mouth can be opened by 3 cm. Deglutition is painless. These clinical findings correspond with the following disease:
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Preventive examination of tongue back of a 6-year-old child revealed areas of epithelium desquamation in form of red oval spots located close to the zones of hyperkeratinization of filiform papillae. Clavate papillae are hypertrophic. There are no complaints. The child has a history of intestinal dysbacteriosis. What is the most likely diagnosis?
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During endodontic treatment of periodontitis a tool was broken in the middle third of the medial root. Choose the treatment method:
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A 14-year-old child complains about a cosmetic defect in the frontal teeth region. Objectively: enamel of the 11, 12, 21, 22, 31, 32, 41, 42 teeth is thin in the region of cutting edge, there is a sulcate enamel pit 1,5 mm wide which encircles the tooth and is parallel to the cutting edge. The cusps of the 16, 26, 36, 46 teeth are underdeveloped and have conical form. What is the most likely diagnosis?
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Examination of a 9-year-old child revealed protrudent chin, the lower lip overlapping the upper lip. There are diastemas and tremas beetwen the lower incisors, the lower incisors overlap the upper ones by 2/3 of crown height. Sagittal fissure is 3 mm. Specify the treatment tactics:
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