HomeKROK Question Archive
KROK Question Archive
KROK 2 Dentistry 2023 Questions | KROKEXAM
Browse 2023 KROK 2 Dentistry exam questions with answers and explanations.
Exam questions
150 Questions41424344454647484950515253545556575859606162636465666768697071727374757677787980
A 30-year-old woman complains of problems with mimics on the right side of her face and a fever of 37.9°C. The signs developed after an overexposure to cold. Objectively, the patient cannot wrinkle her forehead on the right or close her right eye, supraorbital reflex on the right is absent, the right nasolabial fold is smoothed-out. What pathology is it?
View question and answer
A patient is to undergo endodontic treatment of tooth 21 due to exacerbation of chronic pulpitis. The dentist chooses tools for the treatment. What is the function of a spreader?
View question and answer
A 48-year-old man complains of a tumor-like formation on his hard palate. Examination detects a semi-spherical protrusion with clear margins in the anterior part of the palate. X-ray shows. a homogeneous focus of bone tissue. rarefaction. The focus is 1.5x2 cm in size and has clear margins. Against the background of bone tissue rarefaction, the roots intact teeth 11 and 21 are projected; their periodontal fissure can be traced along its whole length. What diagnosis can be made in this case?
View question and answer
A 44-year-old man complains of indisposition, fever of 38°C, and a swelling under the lower jaw on the left. The patient's history states that throughout the last week he felt pain in the area of his tooth 36. Objectively, in the left submandibular area there is an enlarged painful nodule. The skin above the nodule is hyperemic, strained, and cannot be pinched. Tooth 36 is partially destroyed in the oral cavity. What diagnosis can be made in this case?
View question and answer
An 18-year-old young man came to a dentist with complaints of teeth sensitivity on his lower left jaw, provoked by cold stimuli. Examination detects a hard tissue. defect within the enamel on the vestibular surface of tooth 37 in its paracervical region. The enamel there is matte white, not glossy, and fragile when probed. What diagnosis can be made in this case?
View question and answer
A 42-year-old man came to a dentist with complaints of bleeding gums and bad breath. After examination the following provisional diagnosis was made: chronic generalized parodontitis, II degree. examination technique would be most informative for establishing the final diagnosis in this case?
View question and answer
A 13-year-old boy undergoes the treatment of acute deep caries of tooth 25. At the preparation stage, the dentist accidentally perforated the pulp chamber in the projection of the pulp horn. What will be the dentist's tactics in this case?
View question and answer
A 28-year-old man has received a hit to the chin. He complains of pain in the right lateral part of his face. Examination shows facial asymmetry due to tissue swelling in the upper right parotid area, mouth opening is painful and restricted, the jaw is displaced to the right, right-sided crossbite is observed. Make the provisional diagnosis.
View question and answer
A 33-year-old woman came to a dentist complaining of an aesthetic defect in her teeth 11 and 21 and a short-term pain that occurs when she eats sour or sweet foods. Objectively, the vestibular surface of teeth 11 and 21 have defects of hard tissues within the dentinoenamel junction. The defects have gently sloping walls and a dense floor and are painful to probing. The skin of the face, the vermilion border of the lips, and oral mucosa have no visible pathological changes. The woman additionally complains of sweating. tachycardia, and increased appetite. She is thin and has exophthalmos. What has caused the development of this pathology?
View question and answer
What concentration of articaine solution is used for infraorbital anesthesia?
View question and answer
A 56-year-old man complains of pain and swelling in the left buccal region and progressive facial asymmetry. He noticed these symptoms two months ago. Objectively, he has paresis of mimic muscles on the left and a lumpy infiltrate without clear boundaries in the left parotid-masticatory region. The skin over the infiltrate is thinned-out and bluish. Enlarged lymph nodes can be palpated on the left. The mouth opening is reduced to 2.5 cm. No saliva is secreted from the duct of the left parotid gland. Make the provisional diagnosis.
View question and answer
What is used to transfer to the articulator the data about the position of the upper jaw in relation to the hinge axis of the temporomandibular joint?
View question and answer
During a regular check-up of a 7-year -old girl, a dentist detected chalk-like spots on the vestibular surface of her teeth 11 and 21 in their paracervical region. The spots have a matt surface, they are smooth when probed and can be stained with methylene blue. Choose the treatment method that would be optimal in this case.
View question and answer
During examination by a dental orthodontist, a 10-year-old child presents with a chin that protrudes forwards, a sunken upper lip, and a concave facial profile. Intraoral examination detects a mesial shift of the crowns of teeth 36 and 46, the upper front teeth are overlapped by the lower front teeth, the upper front teeth I have an oral inclination. What appliance should be used to treat this pathology?
View question and answer
A 16-year-old girl came to a dentist complaining of darkened crowns of her teeth 11 and 12. According to the girl, approximately one year ago she had a sports trauma. Objectively, the crowns of teeth 11 and 12 are dark gray, intact. painless to percussion. The mucosa of the alveolar process is unchanged. X-ray shows round areas of bone tissue destruction in the region of the root apices of teeth 11 and 12. These bone lesions are 0.3-0.4 cm in diameter and have clear margins. What tactics should the doctor choose in this case?
View question and answer
When does the upper lip become fully formed during the gestation of a human fetus?
View question and answer
A 28-year-old woman came to a dentist with complaints of a carious cavity in her lower right tooth and food getting stuck in the affected area. The following diagnosis was made: chronic median caries of tooth 47 Black's class II. What properties of glass ionomer cements makes them an unsuitable material for filling in this case?
View question and answer
A 52-year-old man complains of pain and clicking in the area of his left temporomandibular joint. Objectively, the face is symmetrical, palpation of the medial and lateral pterygoid muscles is painful on the left. The mouth opening is limited to 1.5 cm between the cutting edges of the central incisors. X-ray shows smooth contours of the articular surfaces, the joint space is normal. What is the most likely diagnosis in this case?
View question and answer
An 18-year-old girl complains of general weakness, a fever of 38.2°C, and moderately sore throat. Examination shows hyperemic mucosa of the posterior pharyngeal wall with a cyanotic tint. The tonsils are enlarged and partially covered in islets of white gray dense filmy deposits. The deposits are difficult to remove and expose a bleeding surface when removed. Palpation detects moderately painful regional lymph nodes 15 cm in size. Make the provisional diagnosis.
View question and answer
During the fitting of the frame of a porcelain-fused-to-metal dental bridge, the frame is in contact with the antagonist teeth in the central occlusion, reaches the ledges on the abutment teeth, and is 0.3 mm thick. What would be the dentist's tactics in this case?
View question and answer
A 62-year-old woman complains of intense pain attacks in the area of her left. lower jaw that last 1-3 minutes. The pain occurs during talking washing her face, and touching the skin. Mandibular X-ray detects no pathological changes in tissue. Make the provisional diagnosis.
View question and answer
When pressing plastic dough, the dental technician opened and closed the cuvette several times to control the amount of the added mass. What can develop as a result of such actions?
View question and answer
Removable complete dentures are being made for a 70-year-old man with completely edentulous jaws and marked progenia. What artificial teeth are not placed in such dentures?
View question and answer
A 26-year-old man came to a dentist complaining of facial asymmetry that developed because of a painful swelling in the left parotid area that appeared 3 days ago. His body temperature is 37.2°C. Two weeks ago he had a case of acute respiratory disease. Objectively, in the left parotid area there is a dense round infiltration up to 2 cm in size that is slightly mobile and moderately painful. The excretory duct of the parotid gland produces clear saliva. Make the provisional diagnosis.
View question and answer
A 13-year-old girl complains of swollen gums that bleed when she brushes her teeth. This condition has been observed for the last half a year. Objectively, her gingival mucosa in the area of the upper front teeth is edematous and cyanotic Interdental papillae are round, doughy, enlarged, and cover the crowns by 1/3 of their height. Teeth 13 and 23 are positioned vestibularly Make the provisional diagnosis.
View question and answer
A 37-year-old patient has been diagnosed with acute osteomyelitis of the mandible on the right in the area of teeth 45, 46, and 47 Examination detects Vincent's sign. Name the characteristics of this sign.
View question and answer
A patient with a gunshot wound to the face and laceration of the palatal and pharyngeal tissues develops increasing respiratory failure. The flap that hangs from the wound sometimes partially and sometimes completely closes the entrance. to the larynx during breathing. What type of asphyxia can be expected to develop in this case?
View question and answer
After receiving tuberal anesthesia, a 45-year-old patient suddenly developed face and neck edema with unclear borders, significant edema of the lips, skin pallor, difficulty breathing, and hoarseness of the voice. What emergency condition has developed in this case?
View question and answer
A 35-year-old man complains of missing teeth on his lower jaw. Objectively, teeth 36, 37 and 38 are missing. Other teeth on the lower jaw are intact. What type of dentition restoration would be optimal in this case?
View question and answer
A 44-year-old man came to a dental surgeon for installation of dental implants. It is planned to carry out a two-stage implantation in the area of missing teeth 15. 16, and 17 What is the minimum period for complete osseointegration of the implants into the upper jaw?
View question and answer
During the frenuloplasty of the superior labial frenulum, a 9-year-old girl, who received infiltration anesthesia with 1.0 mL of Sol. Ultracain DS, complained of dizziness, nausea, weakness, and ringing in her ears. Objectively, her skin is pale and covered in cold sweat, her respiration is rapid, the pulse is of poor volume, the blood pressure is 90/60 mm Hg. What is the most likely diagnosis in this case?
View question and answer
At the clinical stage of trying-in the frame of the bugel (clasp) denture in the oral cavity, an uneven gap that reaches 0.8cm was detected between its arch and the mucosa of the hard palate and alveolar process. What method can be used to correct this defect?
View question and answer
A 43-year-old man complains of a sharp pulsing pain in the area of his right upper jaw. The pain appeared three days ago. Objectively, an inflamed round infiltration can be palpated on the vestibular surface of the gingival mucosa in the area of tooth 16, closer to the gingival margin. The tooth is intact, with the II-degree mobility Its horizontal and vertical percussion is painful. The periodontal pocket is 4-5 mm deep. What diagnosis can be made in this case?
View question and answer
A 40-year-old woman complains of pain in her right temporomandibular joint. Comprehensive examination detects premature contacts between her teeth. Selective filing down of her teeth is planned. What method must be used to control this procedure?
View question and answer
A 12-year-old girl complains of a painful neoplasm under her tongue on the left. It appears during eating (especially salty or sour foods) and then slowly diminishes. Mouth opening is unrestricted. The duct orifice of the left sublingual salivary gland is dilated and hyperemic Saliva is clear and contains pus admixtures. Bimanual palpation detects an induration of a part of the duct. Ultrasound reveals a hyperechogenic zone with an " absorption path " What disease can be characterized by such clinical presentation?
View question and answer
A 21-year-old woman complains of short-term pain attacks in her lower left provoked by thermal stimuli and quickly stop after the stimulus removed. On the masticatory surface of tooth 47 examination reveals a carious-cavity with a narrow entrance that is filled with light-softened dentin. Probing of the cavity floor and percussion of tooth 47 are painless. Probing of the cavity walls is painful. What diagnosis can be made in this case?
View question and answer
A 14-year-old girl came to a dentist with complaints of a severe long-term pain in the area of her upper left tooth. She was diagnosed with acute diffuse pulpitis of tooth 26. What treatment method would be optimal in this case?
View question and answer
In a 3-year-old child, a dentist has detected a carious cavity on the masticatory surface of tooth 74 within the mantle dentin. The overhanging edges of the enamel are matte white. The dentin of the carious cavity is light-colored, soft, and can be removed in layers. Probing of the dentinoenamel junction is tender. Cold stimulus provokes pain that quickly stops after the stimulus is removed. What material should be used for the filling of the carious cavity in this case?
View question and answer
A patient complains of burning in the area of the hard palate mucosa when using a partial removable laminar denture made. one week ago. The following diagnosis has been made allergic contact stomatitis Determine the treatment tactics, if it is t known that there are no conditions for making an arch denture and the patient is using a removable denture for the first time.
View question and answer
A 48-year-old man complains of a burning sensation in his mouth that occurs. when he wears a removable partial laminar denture for the lower jaw that was made for him 2 weeks ago Objectively, he has hypersalivation, his oral mucosa is hyperemic and edematous. Previously, the patient had been using a removable partial laminar denture, made for him 4 years ago, and he had no such complaints. What is the most likely cause of the complication in this case?
View question and answer