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KROK 2 Dentistry 2012 Questions | KROKEXAM
Browse 2012 KROK 2 Dentistry exam questions with answers and explanations.
Exam questions
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A 49-year-old patient complains about pain in the oral cavity induced by eating. He suffers from CHD. Objective examination revealed dyspnea, limb edema. Oral cavity isn't sanitated. On the mucous membrane on the right, there is an ulcer with irregular edges covered with greyish-white necrotic deposit with low-grade inflammation around it. There is also halitosis. What is the most probable diagnosis?
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A 48-year-old patient complains about itching gums. Objectively: gums are dense, of normal colour; cold water causes short-term toothache. X-ray picture shows osteosclerosis of interalveolar septa (fine granular bone texture), height of interalveolar septa and integrity of compact substance on their tops is unchanged. Which diagnosis is the most likely?
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A 34-year-old patient had got in a car accident. The patient stayed conscious. He complains of headache, dizziness, general weakness, nausea. 12 hours after the injury the patient got "raccoon eyes"(periorbital haematomas) within the circular muscles of eye. What fracture does the victim have?
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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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A 47-year-old female patient complains of inability to eat hot and cold food, as well as of intense pain caused by sour, sweet and salty food. Objectively: there is a slight loss of enamel on the molars and incisors. Probing and cold test cause acute pain. What is the most likely diagnosis?
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After removal of dental plaque an 18-year-old patient underwent preventive examination. It revealed painless chalky spots in the precervical region on the vestibular surface of the 22 and 41 teeth. Result of enamel resistance test is 7 What morphological changes are typical for this disease?
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A 49-year-old patient complains of constant mandibular pain irradiating to the ear, soft tissue edema, body temperature rise up to 39,0°C. Objectively: there is an edema in the submandibular region, the skin has not changed in colour. Alveolar mucosa around the 45, 46 teeth is hyperemic and edematic on the oral and vestibular side. Crowns of the 45,46 teeth are completely destroyed, the teeth are mobile. Vincent's symptom is present. What is the most likely diagnosis?
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An 8-year-old boy complains of having toothache during eating. Objectively: approximal surface of the 55 tooth has a deep carious cavity communicating with the tooth cavity. Probing causes acute pain, there is bleeding, percussion is pai- nless. What is the most likely diagnosis?
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A 36-year-old patient complains of pain under the dental bridge. After its removal the patient has been found to have an ulcer 0,3x0,5 cm large on the alveolar process. The ulcer is slightly painful and soft, the surrounding mucosa is hyperaemic, submandibular lymph nodes are not enlarged. What is a provisional diagnosis?
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A 45-year-old female patient complains of worsened fixation and frequent breakages of her partial removable laminar denture for the lower jaw, which she has used for 5 years. Objectively: alveolar process in edentulous areas is considerably atrophied, the denture keeps balance. What is the most likely cause of worsened fixation and frequent breakages of the denture in this case?
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A 42-year-old female patient complains of tooth mobility, difficult mastication. Objectively: face configuration is unchanged. The 35,36,38,44,46,48 teeth are missing. The 31, 32, 41, 42 teeth have 1-2 grade mobility. What is the most efficient denture construction in this case?
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A 42-year-old patient complains of pain in the submaxillary and sublingual areas that is getting worse during eating, body temperature rise up to 37,6°C. He has been suffering from this for 2 months. Objectively: infiltration along the right sublingual torus, hyperemia, soft tissue edema, acute pain during palpation. The duct of the right submandubular salivary gland excretes turbid saliva mixed with pus. What is the most likely diagnosis?
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A 4-year-old girl presents with body temperature rise, aggravation of general condition. The symptoms has been observed for 3 days. Objectively: general condition is grave, body temperature is 38,6°C, the girl is anxious and pale. She presents also with halitosis, hyperaemia and edema of gingival mucous membrane in the region of the 83, 84, 85 teeth on both sides from the alveolar process. The mentioned teeth are mobile, their percussion causes acute pain; the 84 tooth is filled. What is the most likely diagnosis?
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A 48-year-old female patient had been delivered to a hospital with a cheek wound and severe headache, nausea, dizziness. It is known from the history that the patient got a trauma as a result of a fall. After examination she was diagnosed with a contused lacerated wound of cheek, closed craniocerebral injury, brain concussion. This trauma can be qualified as:
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A 26-year-old patient needs prosthetics. Objectively: crown of the 16 tooth is destroyed by 1/3. It is planned to restore its anatomical shape with a metal inlay. What is the first stage of making a cavity for the inlay?
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An 8-year-old boy complains of improper arrangement of teeth. Examination at an orthodontic clinic revealed broad, tight, low-attached upper lip frenulum. Broad frenulum and its low attachment may cause:
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During extraction of the 47 tooth its distal root was broken halfway along its length. What tool should be chosen for extraction of the residual root fragments?
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A 22-year-old student complains of gingival hemorrhage during tooth brushing. Objectively: hyperaemia and edema of marginal gingiva of the front teeth on both jaws, periodontal pockets are absent. X-ray reveals no pathological changes. What is the most likely diagnosis?
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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 24-year-old male complains of pain, bad breath, body temperature rise up to 38,0°C. Objectively: the patient is pale, adynamic. Regional lymph nodes are enlarged and painful. Gums are edematic, hyperaemic, ulcerated, covered with necrotic plaque. There is an excessive buildup of calculus. What additional study should be done in the first place?
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A 46-year-old patient complains of spontaneous pain in the 36 tooth. Its crown is decayed. The patient presented with edema of soft tissues adjacent to the mandible. Body temperature rose up to 39,0°C, the patient has chill. Examination of the oral cavity revealed a pronounced edema of the left mandibular alveolar process on the vestibular and oral side (acute periostitis); the 35, 36, 37 teeth are mobile, subgingival pockets contain purulent exudate; their percussion causes acute pain. Positive Vincent's symptom is present. What is the presumptive diagnosis?
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An 11-year-old girl complains about gingival hemorrhage during tooth brushing and eating. She has been suffering from this for a year. Gum of both upper and lower jaws is edematic and congestively hyperemic. Hygienic state of oral cavity is unsatisfactory. Bite is edge-to-edge. Roentgenological examination of periodontium revealed no pathological changes. What is the provisional diagnosis?
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Preventive examination of a 4,5-year-old child revealed some hidden cavities on the contact surfaces of the 54 and 55 teeth. After removal of the overhanging edges of the enamel the softened dentin could be easily removed within the mantle dentin. Select the optimal material for a permanent filling:
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A 54-year-old woman complains about wear of the 35 and 36 teeth and pain caused by thermal and chemical stimuli. Objectively: crowns of the 35 and 36 teeth are worn by 1/3 of their height (horizontal type), the 24, 25 26 teeth have fullcast crowns. What crowns should be made for the 35 and 36 teeth?
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An 18-year-old patient complains about body temperature rise, weakness, pain induced by eating and deglutition. Objectively: mucous membrane of the oral cavity is erythematic with multiple petechia. Pharynx is hyperaemic. Regional lymph nodes are enlarged, mobile, painless. In blood: leukocytosis, monocytosis, atypic mononuclear cells, ESR is 30 mm/h. What is the leading factor of disease development?
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An 18-year-old student needs prosthetic metal-ceramic denture for the 11, 21 teeth. There are no contraindications for the use of such construction. What is the most appropriate material for taking impressions?
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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 week ago an 18-year-old girl complained of pain in the 22 tooth which was treated and filled several years ago. Over the past two days the pain got worse. Objectively: the 22 tooth is filled, percussion is painful, mucous membrane is hyperaemic and edematic. Spot-film roentgenograph of the 22 tooth shows an ill-defined pariapical bone rarefaction 0,4x0,5 cm large. What is the most likely diagnosis?
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A 22-year-old patient complains of a painful swelling in the right parotid gland. A week earlier the patient got a cheek abrasion which healed under the purulent crust. Over the past two days the patient had observed progressing pain and fever up to 38,6°C. Objectively: there is a soft tissue edema in the right parotid region, the skin is slightly strained but has not changed in colour. There is a dense painful infiltration 2,5x3,5 cm large, the skin over it exhibits limited mobility. The mouth can be fully opened, the mucous membrane around the orifice of the salivary duct is unchanged, the saliva is transparent. What is the most likely diagnosis?
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A 33-year-old female patient has been admitted to the maxillofacial department with complaints of pain and edema of the right submandibular region, body temperature rise up to 39,5°C. Objectively: the patient has asymmetric face because of soft tissue edema of the right submandibular region, palpation reveals a dense infiltration, the skin over it is hyperemic, does not make a fold. The 46 tooth has a deep carious cavity. What is the most likely diagnosis?
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Analysis of the contents of periodontal pockets revealed a significant contamination with Candida yeast fungi. Which of the following drugs should be used for instillations?
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A 25-year-old patient consulted a doctor about massive gingival hemorrhages, dry mouth, mobility and shifting of teeth, purulent discharges from the gums, bad breath. According to the patient, these presentations turned up about 2 months ago. Before the diagnosis can be made, the following tests should be done in the first place:
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A 59-year-old patient has a bilateral fracture of mandible in the region of the 44, 34 teeth, other masticatory teeth are missing, toothless fragments are not displaced but mobile. Which orthosis should be used for the immobilization of bone fragments?
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A 20-year-old patient has asymmetric face due to an upper lip edema on the left. The skin over it is bluish, there are positive symptoms of "compression"and "filling in". What is the most likely diagnosis?
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A 3-year-old girl complains of pain and swelling 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 swelling 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 grade of the 51, 52 teeth is also present. What is the most likely diagnosis?
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A 31-year-old male patient complains of dryness and burning of tongue back that appeared for about a week ago and get worse when he eats irritating food. The patient has a history of recent pneumonia. He had been treated in the in-patient hospital for 2 weeks, the treatment program included antibiotics. Now he doesn't take any drugs. Objectively: mucous membrane of the oral cavity is hyperemic, dry, glossy. Tongue back and palate have greyish-white plicae that can be easily removed. Threads of saliva trail behind the spatula. What is the most likely diagnosis?
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During the examinations and everyday orthopaedic manipulations a dentist uses a dental mirror. What is the way of dental mirrors sterilization?
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A 65-year-old patient complains about partially missing teeth on his upper jaw, difficult mastication, rhinolalia. Objectively: the 18, 16, 15, 11, 23, 28, 35, 38, 48, 47 teeth are missing; there is postoperative midline defect of hard palate. It was decided to make a clasp dental prosthesis with obturating part. The obturating part should be placed on the following element of the clasp dental prosthesis:
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Examination of an 11-year-old boy revealed thickened, somewhat cyanotic, dense gingival margin overlapping the crowns of all teeth by 1/2 of their height. Fedorov-Volodkina oral hygiene index is 2,6, PMA index is 20%. X-ray picture shows no pathological changes of periodontium. The child has a 2-year history of neuropsychiatric treatment for epilepsy. Make a provisional diagnosis:
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A 39-year-old patient complains of a cosmetic defect, hypersensitivity of the 12, 11, 22 teeth. Objectively: vestibular surface of these teeth has oval defects with smooth shiny walls. Probing causes no pain, there is a pain reaction to cold stimuli. The defects can be stained with 5% tincture of iodine. What is the most likely diagnosis?
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