LDEK questions: Conservative dentistry — page 2

759 questions in Conservative dentistry. Open a question to see the answer options and a hint.

51. Which of the following statements concerning intrapulpal anesthesia is false? Question 53
52. Which of the following is not observed in the inflammatory process which develops as primary periodontal disease with secondary endodontic involvement (endo-perio)? Question 54
53. Indicate the true statements concerning the etching of dentin prior to the application of composite material: Question 55
54. Indicate the proper ways of gaining access to a caries lesion on the approximal surface of a posterior tooth: Question 56
55. Indicate the diet which can be regarded as a high risk factor for caries according to Kidd: Question 57
56. Which clinical situation does the following X-ray show? Question 58
57. A 35-year-old patient complains of pain to mastication on teeth 15 and 16. Percussion test is positive (patient reacts with pain). Clinical and radiological… Question 59
58. Indicate which irrigant can replace EDTA and sodium hypochlorite to remove the smear layer: Question 60
59. Which of the following is the first, clinically visible sign of the carious lesion: Question 61
60. Indicate the false statement concerning dental erosion: Question 62
61. Indicate the true statements concerning the process of composite polymerization: Question 63
62. In which direction the cut is made in the procedure of hemisection of mandibular molars? Question 64
63. Indicate the false statement concerning the adhesion of restorative materials to tooth tissues: Question 65
64. Which of the following dietary carbohydrate substrate are biofilm bacteria capable of fermenting? Question 66
65. Which of the following can be observed in the case of a vertical root fracture? Question 67
66. What is the shape of the access cavity preparation for endodontic treatment in the maxillary first molar? Question 68
67. Which of the following concerning the work with Lentulo spiral drill is true? Question 69
68. What is the size of filler particles in microfill composites? Question 70
69. Which of the following statements concerning polyacid-modified composite resin materials (compomers) is false? Question 71
70. A 54 year-old man was referred for a treatment of tooth 47. The patient’s current condition is good. The patient is diabetic and registered for regular specialized… Question 72
71. Which of the following statements regarding physiologic dentin sclerosis is false? Question 73
72. In which of the cases given below the patient may feel no pain and the disorder may be found accidentally on the X-ray? Question 74
73. Which of the following leads to pain sensations in patients suffering from dentin hypersensitivity? Question 75
74. Indicate the true statements concerning the smear layer: Question 76
75. Which of the following explains the problem of dental pulp edema in pulp inflammation? Question 77
76. After professional whitening of vital teeth in a dental office there is a high probability of side effects. Which of the following side effects are most commonly… Question 78
77. Which of the following compounds may cause pH increase in the oral cavity by binding hydrogen ions? Question 79
78. Which of the following figures shows the root canal type C and in which teeth is it most frequently found? Question 80
79. Rotational movements may lead to the file being blocked or broken if used with: Question 81
80. To obtain better apical seal of the master gutta-percha point, its apical part can be solvent-softened before placing it into the root canal. What are the indications… Question 82
81. Indicate the layer of a non-cavitated carious lesion in the enamel in which remineralization processes occur: Question 83
82. Please indicate the recommended method of final root canal obturation in the case of internal resorption: Question 84
83. Which ions in AH26 endodontic sealer caused discoloration? Question 85
84. Reminarilising fluoride preparations are an essential element for the treament of root caries: Question 86
85. Which of the following symptoms of irreversible pulpitis is the most reliable? Question 87
86. Solubility in tissue fluids and gradual material resorption are disadvantages of the following sealants: Question 88
87. Indicate the true statements on the properties of citric acid used as an irrigant solution in endodontic treatment: Question 89
88. The decision on the need to implement the invasive treatment of a carious lesion is based on: Question 90
89. Which of the following statements concerning the rubber dam is false? Question 91
90. What distance should be kept between the tip of a light-curing unit and a resin composite restoration surface to ensure effective light curing of the material? Question 92
91. Which of the following concerning spreaders in endodontic treatment is true? Question 93
92. Which of the following does not affect the current caries risk assessment? Question 94
93. On the basis of the following description and the figure shown below indicate the method of root canal preparation: 'This method consists of widening the apical part of… Question 95
94. Which material is the most recommended for closing a root canal perforation? Question 96
95. Which of the following symptoms may suggest a perforation? Question 97
96. Which of the following statements concerning Black’s classification are true? Question 98
97. Indicate the Si/Sta stage in Lasfargues and coworkers’ classification of a carious lesion of Black’s class V that extends to the enamel-dentine junction: Question 99
98. Indicate the recommended method of determining the causative tooth responsible for a chronic apical abscess with a sinus tract: Question 100
99. Which of the following examinations should be performed during the checkup of a tooth after direct pulp capping? Question 101
100. What kind of treatment can you recommend in the case visible in the picture below? Question 102

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