1. Which investment is usually used for casting base metal alloys?
2. An adverse pulpal reaction is likely to occur if the following material is placed directly into a deep cavity
3. Placing GIC under composite for pulp protection is called:
4. A dentin conditioner
5. Which portion of a gas flame should be used to melt gold casting alloys?
6. What distinguishes a base from a cement from a cavity liner?
7. All of the following are factors in discoloration of tooth following a big amalgam filling except:
8. Which of the following is an activator used in ultraviolet lightcuring resin Systems
9. Which one of the following is a caries assessment test:
10. If a carious lesion approaches pulp, the pain is referred to the adjacent teeth. The nerve fibres responsible for this are the:
11. Which of the following is not a point angle of a MO Class II cavity?
12. Dental amalgam, when used in the restoration of a cusp should be
13. In the double cone pattern of proximal caries extending through enamel and dentin, the apices of the two cones
14. The first number on those instruments having three-number formula, indicates the
15. Rake angle is:
16. The most common pin used in restorative procedures is a(an) _____.
17. When preparing a pin channel, you perforate into the vital pulp chamber. What best describes your next step.
18. Which of the following statements about an amalgam tooth/cavity preparation is true?
19. After preparation, deep cavities should be sterilized with
20. The occlusal portion of the wax pattern is usually carved
21. When luting a casting with resin cements, the flash should to removed
22. Streptococcus mutans are ____ and therefore ___
23. Porcelain laminate veneers get maximum retention through
24. Buccal cavity of Mandibular canine is to be restored with light cured composite. What should not be done?
25. Marginal adaptation of composite resin restorations can be most improved by
26. Which of the following is considered a reversible carious lesion?
27. A full cast crown which fails to seat properly and is rocking. This could be due to all of the following, except
28. A no. 33 . bur is
29. A No. 4 bur is
30. When using bioactive substances for the repair, of a root perforation, which of the following zones will not be seen
31. Common component of most root canal sealers is:
32. One year after performing endodontic treatment on tooth #3, you take a new periapical radiograph and notice that there is still a lesion present. What is the most likely problem?
33. With the cone moved to the distal and facing towards the mesial, the mesiobuccal root of the first molar
34. Tug-back is achieved and the canal is ready for filling
35. At what stage is endodontic treatment considered complete?
36. Which of the following situations may be indications for intentional replantation
37. Process of Internal resorption of root is influenced most by:
38. An 8-year-old patient presents to your office for an emergency visit with a traumatic exposure of tooth #9. The treatment of choice for this patient is
39. During instrumentation of tooth #19, you realize that you are unable to negotiate your file to the complete working length. The procedural error that has occurred is most likely
40. Following obturation, sealer was left in the coronal pulp chamber of tooth #9, and the conservative access was filled with a composite restoration. This could most likely result in:
41. ___________require endodontic treatment more often than any other tooth,________ while have the highest endodontic failure rate.
42. One of the most serious procedural errors that can occur during root canal therapy is instrument aspiration. What is the most important precaution an operator can take to prevent instrument aspiration?
43. While performing nonsurgical endodontic therapy you detect a ledge. What should you do?
44. A patient presents to your office with a chief complaint of dull, diffuse pain in the lower right quadrant. The nerve fibers responsible for this sensation are:
45. Cluster headache differs from migraine in being
46. In root fractures of the apical one third of permanent anterior teeth, the teeth usually
47. Root canal therapy is completed on a mandibular first molar and closed temporarily with a cotton pellet and a temporary sealing material, withplans for a definitive restoration to be placed as soon as possible. What is the most important factor in ensuring the success of the procedure?
48. Which one of the following cannot be observed on a conventional radiograph?
49. According to the Weine's classification of root canal system, 2 canals starting from the pulp chamber and ending as 2 orifices is classified as:
50. You completed a root canal procedure on tooth #9 approximately 6 months ago. Your patient is still reporting persistent symptoms of acute apical pathosis including sensitivity on mastication and a dull ache, and the periradicular radiolucency that was visible on your obturation radiograph has not appeared to decrease in size. The most likely reason for the persistence of these symptoms is
51. S. Shape of access cavity preparation in a mandibular molar with four canals
52. The most effective method of diagnosing the origin of fistula is:
53. In a tooth with apical root fracture which of the following is true
54. True in case' of traumatic tooth fracture involving dentin:
55. The main benefit of primary incisor replantation is
56. The primary function of root canal sealers is:
57. The most acceptable method to achieve adequate root canal debridement is
58. All of the following factors may affect endodontic anesthesia except
59. Which of the following is used for removal of broken instrument from a root canal:
60. Once the root canal is obturated, what usually happens to the organism that had previously entered periradicular tissues from the canal?
61. Which of the following is responsible for penetration of bacteria in caries of dentin
62. When making a diagnosis, the primary goal of your diagnostic tests is to reproduce the chief complaint. You test the suspected tooth for percussion sensitivity and palpation sensitivity. Your positive percussion findings can be interpreted as follows:
63. When making a diagnosis as to the vitality of a tooth, you employ the electric pulp tester. You obtain a measurement that suggests the tooth is necrotic. With this information alone, you can determine that:
64. You are instrumenting a canal with a size 30, 25 mm k-type file. What does each of the sizes denote, respectively?
65. Which of the following statement(s) is(are) true regarding treatment of a tooth presenting with a sinus tract?
66. Possible etiology of internal resorption:
67. When a calcified root canal cannot be located or instrumented
68. The major objectives of access preparation include all of the following except which one?
69. While obturation selection of master cone is based on:
70. A patient is diagnosed with symptomatic apical periodontitis and refuses treatment due to fear of needles. Your statement to the patient should include the fact that:
71. Identification of lymphocytes in human periapical lesions has shown
72. Gutta Percha and sealer form a monoblock known as:
73. Which of the following is a clinical diagnosis based on subjective and objective findings indicating that the vital inflamed pulp is incapable of healing and has the following additional descriptors: lingering thermal pain, spontaneous pain, and referred pain?
74. A patient with previous history of trauma to tooth reveals metallic sound on percussion of the central incisor. The possible injury that occurred was:
75. Which of these instrument is not used in obturation?
76. Which of the following diagnostic criteria is least reliable in the assessment of the pulpal status of the primary dentition?
77. Which of the following is not suggested as irrigants during root canal therapy
78. Patients scheduled for retreatment
79. Pregnant patients in the first trimester
80. Pain from a tooth is characterized by:
81. Root canal cements should
82. A patient walks into your clinic holding a cup with a tooth in it. What liquid would you LEAST hope the patient kept the tooth in?
83. While making an access opening for root canal treatment of Maxillary first premolar, chances of perforation are high if the operator is not aware of:
84. Reaming action produces a canal of anatomy:
85. You have initiated root canal therapy on a patient when he suddenly experiences sudden pain during working length determination, begins to hemorrhage, and detects a burning sensation when you attempt to irrigate with sodium hypochlorite. What is the most likely cause of these symptoms?
86. You are doing a deep occlusal preparation on tooth #30. The tooth was asymptomatic prior to treatment. All caries have been removed, but you notice a pinpoint mechanical pulpal exposure. Hemorrhage is easily stopped. The treatment of choice is:
87. Rool-filling materials must be
88. A patient received a large MOD composite restoration 1 week ago. She is now experiencing intense, spontaneous pain, with exacerbation of symptoms occurring when she applies heat or cold or when she eats sweets. The pulpal diagnosis is:
89. First consideration in a case with root fracture:
90. Chairside dry heat glass bead or salt sterilization
91. Type of root resorption that occurs from a combined injury to PDL and cementum, complicated by bacteria from an infected root canal space:
92. Barbed broach is used for:
93. Mid treatment flare up is most common in:
94. A 35-year-old woman was in a horse back riding accident less than 1 hour ago. On clinical examination, the tooth is painful to palpation and has slight mobility. The tooth is fractured in the occlusal third and there appears to be no exposure. A periapical radiograph reveals fracture above the pulpal space and no periapical radiolucency. The treatment of choice for the asymptomatic maxillary central incisor is:
95. A hockey player gets hit with a stick, and his central incisors are intruded. Which of the following is the least useful examination procedure?
96. Pulpal pain response is
97. Pulpal pain response is
98. A primary tooth has an exposed vital pulp. The tooth has less than two-third of its root remaining and caries perforating the furcation. There is a succedaneous tooth forming normally apical to the tooth. The treatment of choice for this tooth is:
99. When the pulpal inflammation extends beyond the apical foramen, the condition is called:
100. Which of the following best describes the anesthetic effects of a posterior superior alveolar nerve block?