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KROK 2 Dentistry 2010 Questions | KROKEXAM
Browse 2010 KROK 2 Dentistry exam questions with answers and explanations.
Exam questions
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A 42-year-old woman came to prosthetic dentistry to make dental prosthetics. Objectively: dental formula is 18.... 13 12 11 21 22 23.... 28 48 47 46 45 44 43 42 41 31 32 33 34 35 36 3' The bite is deep, clinical crowns are low, survey line is not marked. The patient suffers from epileptiform attacks. What prosthesis is indicated?
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A 58-year-old patient was diagnosed with fracture of lower jaw with formation of a false joint. Objectively: the 38, 36, 32, 41, 43, 48 teeth are missing. Preserved teeth are intact, stable. There is no displacement of lower jaw fragments. X-ray picture shows a bone tissue defect to up 2 cm large. What construction of prosthesis is indicated in this situation?
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A 39-year-old patient complains about experiencing pain in the region of the 21 tooth for 2 days. It is known from the anamnesis that the indicated tooth was treated for carious. Objectively: the 21 tooth is covered with metal-ceramic crown, mucous membrane in apex projection is hyperaemic. Percussion of the tooth is sharply painful. X-ray picture shows improperly filled root canal. It is planned to take off the 21 tooth crown. What kind of anesthesia should be applied?
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A 8-year-old child has a deep carious cavity communicating with dental cavity on the distal-approximal masticatory surface of the 75 tooth. Probing causes pain. Percussion is painless. Cold water causes slowly abating pain. The tooth decayed some months ago and wasn't treated. What treatment method is efficient in this case?
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A patient consults a prosthodontist about a dentition defect of the 14, 15, 16 teetht. It is necessary to prepare teth for crowning. Before the preparation the handpiece must be processed with:
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A 36-year-old female patient complains about acute pain, clicking in the right temporomandibular joint, burni- ng pain in the region of the right external acoustic meatus. Movements of lower jaw are step-like with short-standing disabling moments and acute pain in the joint. Objectively: the face is symmetric. Occlusion is orthognathic. Palpation of lateral pterygoid muscles is painful on the right. Tomogram shows that bone structure circuits of joints are smooth and slick. What is the most likely diagnosis?
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A 45-year-old teacher consulted a prosthodontist about choosing efficient prosthetic tactics. Objectively: the 12, 11, 21, 22 teeth present with III-degree mobility. What orthopaedic care is the most efficient?
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A 62-year-old female patient consulted a dentist about orthopaedic treatment of the 12, 21, 22 teeth. The arterial pressure was 165/110 mm Hg before prosthetic procedure. Because of emotional stress arterial pressure rose up to 220/130 mm Hg. What is the most likely diagnosis?
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A 16-year-old patient complains about experiencing gingival enlargement, pain and hemorrhage throughout a year. Objectively: gingival papillae are enlarged and overlap tooth crowns by 1/2 of their height. Gums exhibit bright red granulations and are painful on palpation. There are considerable calculus deposits. X-ray picture shows no changes of alveolar process. What is the most likely diagnosis?
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Examination of a 25-year-old male patient revealed maximal number of occlusional contacts of opposing teeth during denture joining. X-ray picture shows that the articular head of the lower jaw is near the base of the slope of articular tubercle. What type of occlusion is present?
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A 49-year-old male patient complains about gingival hemorrhage, teeth mobility in the frontal region of his lower jaw, hypersensitivity of dental cervixes. X-ray picture shows widening of periodontal fissure in the region of the 42, 41, 31, 32 teeth, as well as resorption of alveolar process tissue to 1/3 of root length. The 42, 32 teeth present with I degree mobility, the 41, 31 teeth present with II-degree of teeth mobility. What temporary splint should be used for frontal stabilization of dentition?
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For fabrication of an external prosthesis a 62-year-old male patient needs "Hippocratic facies". What impression material should be applied?
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A 67-year-old patient was diagnosed with cemental caries of the 35 tooth. What filling material should be chosen?
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A 47-year-old patient complains about limited mobility of her lower jaw in the morning; periodical dull pain in the right temporomandibular joint (TMJ) and general joint stiffness. According to the patient, the stiffness disappears throughout the day after joint "exercising". Objectively: the patient's face is symmetric, mouth opening is limited down to 2,5 cm, there is also joint clicking. Median line deviates to the right by 3-4 mm, palpation of the right articular head is painful. What is the most likely diagnosis?
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A 10,5-year-old child complains about painful skin rash on his lips. Objectively: red border is edematic and hyperemic, covered with cracks and multiple bloody crusts. There are small vesicles with serous contents on the upper lip skin that merge together in certain areas. Maceration and madescence of skin is also present, especially in the mouth corners. What is the most likely diagnosis?
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An injured man was hospitalized to the oral surgery department with rupture of soft tissues of palate and pharynx. In process of respiration the dangling flap from the wound partially or completely blocks the larynx aperture. What kind of asphyxia may develop in this patient?
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A 27-year-old female patient is pregnant, duration of gestation is 21 weeks. She has indication for extraction of the 28 tooth because of exacerbation of chronic periodontitis after ineffective therapeutic treatment. What kind of anaesthesia should be used for tooth extraction?
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A 50-year-old patient complains about difficult mastication, teeth mobili- ty, offensive breath, gingival hemorrhage. Objectively: the gum is hyperemic and cyanotic, dental calculus is present. Parodontal pouches are 8 mm deep within upper jaw molars. The pouches of other teeth are 6 mm deep. X-ray picture shows resorption of bone tissue by 2/3-1/2 of tooth roots. What is the most likely diagnosis?
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A 20-year-old patient complains about a carious cavity in the 44 tooth. Objectively: the 44 tooth has a deep carious cavity in the masticatory surface, the dentine is dense and pigmented. Probing, percussion cause no pain. Electroodontodiagnosis is 12 microampere. What is the most likely diagnosis?
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A 32-year-old female patient complains about a cosmetic defect of the 14, 25 teeth. It is planned to make metal-ceramic crowns. What impression material should be used for making these crowns?
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A 25-year-old patient complains about a light brown spot in the upper foretooth. Objectively: the 23 tooth has a single light brown spot in the cervical region. Probing shows smooth surface. The tooth is nonresponsive to cold and probing. What is the most likely diagnosis?
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A 60-year-old patient underwents sanitation of the oral cavity before an operation on account of cataract. After examination the patient was diagnosed with chronic median caries of the 22 tooth (Black's class V). What filling material should NOT be used in this patient?
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A 33-year-old patient complains about an ulcer of oral cavity floor, that is located under his tongue on a level between the 43 to the 33 tooth. Examination reveales that ulcer edges are undermined and scalloped. Its grey-yellow floor is shallow and it is covered with small, easily bleeding granulations. There is no ulcer infiltration. Make a clinical diagnosis:
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A steeplejack with a long record of service consults a dentist about dryness, burning and insignificant lip edema. The same symptoms were noted one year ago in autumn. What is the most likely diagnosis?
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A 42-year-old patient complains about gingival pain, progressing gingival hemorrhage, increasing tooth mobility, halitosis. Objectively: gums are evidently hyperaemic, extremely edematic, they bleed easily on palpation. Tooth roots are exposed, parodontal pouches are 4-6 mm deep, and contain purulent exudate, there is also supragingival and subgingival dental calculus. II-III grade tooth mobility is present. Orthopantomogram shows resorption of interdental septa down to 1/2 of their height. What is the most likely diagnosis?
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A female patient applied to the oral surgery department and underwent radical maxillary sinusotomy with plastic repair of fistula through the alveolar socket of the extrated 27 tooth. Infiltration and all the peripheral block anaesthesias of the left upper jaw were performed with 6,0 ml of 2% lidocaine solution. 3 minutes later the patient registered double vision in her left eye, inability to close it. Which of the performed anaesthesias is the reason for the above-mentioned presentations?
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On the 7th day after the operation on the abdominal cavity a 30-year-old patient presented with pain and sweling in the region of parotid gland; body temperature rise up to 39°C; limited mouth opening, dryness. Gland massaging results in discharge of purulent exudate from its duct. The patient can be diagnosed with:
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A 28-year-old patient complains about constant localised pain that is getting worse when biting down on food. Objectively: the 46 tooth has a carious cavity communicating with the dental cavity. Probing of the carious cavity causes no pain, percussion is painful, X-ray picture shows no changes. What is the most likely diagnosis?
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A 23-year-old patient complains about a carious cavity in the 16 tooth. Objectively: the 16 tooth has a deep carious cavity communicating with the dental cavity. Probing, percussion cause no pain. There is a fistula on the gingiva in the region of root apex projection of the 16 tooth. What is the most likely diagnosis?
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A 30-year-old male patient consulted a dentist about a swelling in the region of his upper lip. Objectively: the face is asymmetric because of upper lip edema, nasolabial fold is smoothed. Mucogingival fold of the upper jaw vestibular surface in the region of the 11, 12, 21 teeth is smoothed, hyperemic. Palpation is painful. Fluctuation is present. The patient was diagnosed with acute purulent periostitis of the upper jaw satrting from the 21 tooth. Choose the treatment tactics:
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A 33-year-old officer delivered from a battlefield has shoot off mental part o fmandible, drooling, insignificant hemorrhage from the oral cavity, asphyxia that occurs periodically because of head repositioning. What actions should be taken to prevent the asphyxia development?
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During extraction of the 14 tooth a 64-year-old patient complained about retrosternal pain irradiating to his back. There is paleness of membrane and skin integument as well as pulse assymetry on the carotid arteries. What is the most likely diagnosis?
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Renovation of a dental office involves installation of luminous tube lamps. Specify the required illuminance level in lux:
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A 42-year-old builder complains about a condyloma on his lower lip. It appeared 1,5 month ago. It has been significantly growing throughout the last week. Objectively: the red border of the lower lip is cyanotic and infiltrated, it has some isolated closly adhering squamae. There is a well-defined hemispherical formation 8 mm in diameter and 4 mm high in the centre. The formation is of grey-and-blue-and-red colour, it has rough surface formed by thin, closely adhering and thick-based squamae. Regional lymph nodes are enlarged, mobile, dense and painless. What is the most likely diagnosis?
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During the removal of dermoid cyst of the nose bridge a 14-year-old boy complained about giddiness, sickness, weakness. Objectively: the skin is pale, covered with cold sweat. Tachypnoe is present. The pulse is weak, the arterial pressure is low (80/60 mm Hg), hands feel cold. What is the most likely diagnosis?
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A patient complains about pain in the oral cavity, burning and dryness. Exami- nation revealed fiery-red dry mucous membrane. The tongue is crimson, dry, glossy, filiform papillae are atrophied. There is some deposit in tongue folds that is hard to be removed. The patient undergoes treatment for pneumonia, she takes antibiotics. What is the most likely diagnosis?
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A dentist applied to the regional sanitation center for a permission to open a private dental office with two universal dental sets. Planned area of the reception room is 26 M2. According to existing norms, the dental office with two universal dental sets must have the following area:
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A 40-year-old patient underwent selective grinding of teeth on account of TMJ disease provoked by functional occlusal disorder. 3 days later the patient consulted the orthopaedist about injuring buccal mucosa because of its getting in between dentitions on the right. What mistake was made during teeth grinding?
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A 20-year-old patient was diagnosed with chronic deep caries of the 12 tooth. Objectively: the 12 tooth has a deep carious cavity on the aproximal-distal surface. Distal crown angle of the 12 tooth is also affected with caries. Choose the material for correction of the indicated defect:
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A 9-year-old child complains about dull pain that is getting worse while pressing the tooth. The tooth was treated for pulpitis one mounth ago. Objectively: the 36 tooth is filled. Percussion causes acute pain. Mucous membrane is hyperemic and edematic. What is the most likely diagnosis?
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