Sample Examination 401

A. Chlordiazepoxide C. Structural metal defects

B. Diazepam D. Occluding against the antagonist tooth
C. Lorazepam 5. e primary purpose of a maxillary denture occlusal
D. Midazolam index is to ____.
E. Triazolam A. Maintain the patient’s vertical dimension
39. Which of the following reactions are not involved in B. Maintain both correct centric and vertical relation
the metabolism of lidocaine? (Choose two.) records
A. Hydroxylation of the aromatic ring C. Maintain the patient’s centric relation
B. Cleavage of the aromatic ring D. Preserve the face-bow record
C. Dealkylation of the amino terminus 6. An edentulous patient with a diminished vertical
D. Hydrolysis of the amide bond dimension of occlusion is predisposed to have which
E. Hydrolysis of an ester bond of the following conditions?
40. Flumazenil blocks the receptors stimulated by which A. Epulis ssurata
of the following drugs? (Choose all that apply.) B. Pemphigus vulgaris
A. Baclofen C. Papillary hyperplasia
B. Buspirone D. Angular cheilosis
C. Diazepam 7. When performing a diagnostic occlusal adjustment
D. Zolpidem on diagnostic casts, the mandibular cast should be
E. Zaleplon mounted to the maxillary cast in an articulator using
which of the following?
A. Centric relation interocclusal record
B. Hinge articulator
Prosthodontics C. Maximum intercuspation wax record
D. Face-bow transfer
1. e incisive papilla provides a guide for the anterior- 8. When border molding a mandibular complete denture,
posterior placement of maxillary anterior denture the extension of the lingual right and le anges are
teeth. e labial surfaces of natural teeth are generally best molded by having the patient ____.
8 to 10 mm anterior to this structure. A. Purse the lips
A. Both statements are true. B. Wet the lips with the tongue
B. e rst statement is true, and the second state- C. Open wide
ment is false. D. Swallow
C. e rst statement is false, and the second state- E. Count from 50 to 55
ment is true. 9. e main function of the direct retainer of a removable
D. Both statements are false. partial denture is ____.
2. Which of the following statements is true concerning A. Stabilization
vertical dimension of rest (VDR)? B. Retention
A. VDR is a physiologic rest position. C. Support
B. VDR is a position of the mandible when opening D. Add strength to the major connector
and closing muscles are at rest. 10. Lack of reciprocation of a removable partial denture
C. VDR is a postural relationship of the mandible to (RPD) clasp is likely to cause ____.
maxilla. A. Tissue recession because of displacement of the
D. VDR is the amount of jaw separation controlled by RPD
jaw muscles when they are in a relaxed state. B. Insu cient resistance to displacement
E. All of the above C. Fracture of the retentive clasp
3. All of the following are characteristics of a postpalatal D. Abutment tooth displacement during removal and
seal of complete dentures except one. Which one is the insertion
exception? 11. Centric relation is the maxillomandibular relationship
A. Compensates for shrinkage of the acrylic resin in which the condyles are in their most ____.
caused by its processing A. Posterior position with the disc interposed at its
B. May reduce the gag re ex thickest avascular location
C. Improves the stability of the maxillary denture B. Posterior position with the disc interposed at its
D. It is most shallow in the midpalatal suture area thinnest locale
4. Which of the following is the most likely cause of an C. Superior position with the disc in its most anterior
occlusal rest fracture? position
A. Inadequate rest-seat preparation D. Superior-anterior position with the disc interposed
B. Improper rest location at its thinnest location
402 Sample Examination

12. e denture base of a mandibular distal extension 20. You are planning to replace a maxillary central incisor
removable partial denture (RPD) should cover ____. with a xed prosthetic device. e edentulous space is
A. e retromolar pads slightly wider than the contralateral tooth. To achieve
B. All undercut areas and engage them for retention acceptable esthetics, you should ensure that ____.
C. e hamular notch A. e line angles of the pontic are placed in the same
D. e pterygomandibular raphe relationship as the contralateral tooth
13. A good landmark for anterior-posterior positioning B. e pontic is made smoother than the contralateral
of the anterior maxillary teeth in a complete denture tooth
is the ____. C. e pontic has a higher value than the contralateral
A. Residual ridge tooth
B. Incisive papilla D. e line angles are shaped to converge incisally on
C. Incisal foramen the pontic
D. Mandibular wax rim 21. Polycarboxylate cement achieves a chemical bond
14. Which one of the following is a purpose or character- to tooth structure. e mechanism for this bond
istic of the postpalatal seal? is ____.
A. Provides a seal against air being forced under the A. Ionic bond to phosphate
denture B. Covalent bond to the collagen
B. Usually should extend posterior to the foveae C. Chelation to calcium
palatinae D. ese cements do not form a chemical bond
C. Improves the stability of the maxillary denture 22. Which of the following properties of a gold alloy
D. Is carved deeper in the midpalatal suture area exceeds a base metal alloy in numerical value?
15. e ____ is used as a guide to verify the occlusal plane. A. Hardness
A. Ala-tragus line B. Speci c gravity
B. Interpupillary line C. Casting shrinkage
C. Camper’s line or plane D. Fusion temperature
D. All of the above 23. Which of the following impression materials has the
16. Balanced occlusion is less important during chewing highest tear strength?
than during nonchewing events. is di erence occurs A. Polyether
because the time teeth are in contact during nonchew- B. Polysul de
ing events is much greater than the time teeth are in C. Addition silicone
contact during chewing. D. Condensation silicone
A. Both statements are true. 24. Chroma is the aspect of color that indicates ____.
B. e rst statement is true, and the second state- A. e degree of translucency
ment is false. B. e degree of saturation of the hue
C. e second statement is true, and the rst state- C. Combined e ect of hue and value
ment is false. D. How dark or light a shade is
D. Both statements are false. 25. For an alloy to be considered noble metal, it should
17. Which of the following conditions can be caused in an ____.
edentulous patient by an ill- tting denture ange? A. Contain at least 25% silver
A. Papillary hyperplasia B. Contain at least 25% platinum or palladium
B. Epulis ssurata C. Contain 40% gold
C. Candidiasis D. Contain at least 80% gold
D. Fibrous tuberosity 26. e purpose of fabricating a provisional restoration
18. Inadequate rest-seat preparation for a removable with correct contours and marginal integrity is ____.
partial prosthesis can cause ____. A. For protection
A. Tooth mobility B. To supervise the patient’s dental hygiene and give
B. Ligament widening the patient feedback during this stage
C. Occlusal rest fracture C. To preserve periodontal health
D. Occlusal rest distortion D. All of the above
19. Which of the following is the main disadvantage of 27. A compomer cement ____.
resin-modi ed glass ionomer compared with conven- 1. Is indicated for cementation of metal-ceramic
tional glass ionomer? crowns
A. Reduced uoride release 2. Is indicated for cementation of all-ceramic
B. Increased expansion restorations
C. Reduced adhesion 3. Is indicated for some all-ceramic crowns, inlays,
D. Cost and veneers with some contraindications
 Sample Examination 403

4. Has low solubility and sustained release of C. Should conform to the interdental embrasure
uoride D. All of the above
A. All are correct. E. A and C only
B. 1, 2, and 3 are correct. 34. e design of a restored occlusal surface depends on
C. 1, 3, and 4 are correct. the ____.
D. 2, 3, and 4 are correct. 1. Contour of the articular eminence
28. Heating the metal structure in a furnace before opaque 2. Position of the tooth in the arch
application in a metal-ceramic crown is necessary 3. Amount of lateral shi in the rotating condyle
to ____. 4. Amount of vertical overlap of anterior teeth
1. Harden the metal A. 1 and 3
2. Oxidize trace elements in the metal B. 2, 3, and 4
3. Eliminate oxidation C. 2 and 4 only
A. 1 only D. 3 and 4 only
B. 1 and 2 E. All of the above
C. 1 and 3 35. Which of the following is a main function of a guide
D. 2 only plane surface contacted by a minor connector of a
E. 3 only removable partial denture (RPD)?
29. Which of the following are probably not clinically sig- A. Provides a positive path of placement and removal
ni cant in terms of in uencing the retention of a for the RPD
cemented restoration? B. Can provide additional retention
1. Tooth preparation C. Aids in preventing cervical movement
2. Surface texture D. All of the above
3. Casting alloy E. Only A and B
4. Tooth taper 36. Which of the following components of a removable
5. Luting agent partial denture (RPD) must be rigid?
A. 1, 3, and 4 A. Major connector, minor connector, and retentive
B. 1, 2, 3 clasp
C. 1, 2, 3, 5 B. Wrought wire clasp, rests, and minor connector
D. 3 and 5 C. Minor connector, rest, and major connector
30. Which articulator is capable of duplicating the border 37. Which type of clasp is generally used on a tooth-
mandibular movements of a patient? supported removable denture?
A. Nonadjustable A. Circumferential cast clasp
B. Arcon B. Combination clasp
C. Non-arcon C. Wrought wire clasp
D. Fully adjustable 38. Which of the following disinfectants can be used with
31. Tooth #30 is endodontically treated a er a conser- alginate impressions?
vative access cavity was made through a typical A. Alcohol
MO amalgam restoration. e restoration of choice B. Iodophor
is a ____. C. Glutaraldehyde
A. Chamber-retained amalgam foundation D. All of the above
B. Custom cast post and core E. B and C only
C. Wire post and core 39. A dentist replaces an amalgam on tooth #5 and notices
D. Parallel-sided prefabricated post with cast core a small pulpal exposure. e dentist elects to perform
32. Potential problems in connecting implants to natural a direct pulp cap procedure. Which of the following
teeth include all of the following except one. Which best predicts success of the procedure?
one is the exception? A. Size of the lesion
A. Stress is concentrated at the superior portion of the B. Isolation of the lesion
implant C. Use of calcium hydroxide
B. Breakdown of osseointegration D. Age of the patient
C. Cement failure on the natural abutment 40. In a tooth-supported removable partial denture (RPD)
D. Screw or abutment loosening with a circumferential cast clasp assembly, there
E. Fracture in the connector area of the prosthesis is ____.
33. A minor connector of a removable partial denture A. More than 180 degrees of encirclement in the
____. greatest circumference of the tooth
A. Should be thin so as not to interfere with the tongue B. A distal rest on the tooth anterior to the edentulous
B. Should be located on a convex embrasure surface area
404 Sample Examination

C. A mesial rest on the tooth posterior to the edentu- C. Create the main color for the restoration
lous area D. A and B are correct
D. Only B and C E. A, B, and C are correct
E. All of the above 46. e light e ect of a translucent material (e.g., incisal
41. What is a nonrigid connector? edge of some teeth) appearing blue in re ected light
A. An appliance composed of a key and keyway that and red-orange in transmitted light is called ____.
is used to connect one piece of a prosthesis to A. Metamerism
another B. Opalescence
B. An appliance that is used to connect two crowns C. Value
rigidly xed D. Chroma
C. A bar appliance that is used to maintain a space for E. Fluorescence
a tooth that has not erupted 47. Which of the following are considered noble elements?
D. None of the above (Choose all that apply.)
42. e distance between the major connector on a maxil- A. Silver
lary removable partial denture framework and the gin- B. Gold
gival margins should be at least ____. C. Platinum
A. 3 mm D. Palladium
B. 2 mm E. Chromium
C. 6 mm 48. Reversible hydrocolloid is composed of ____.
D. 15 mm A. Polysul de polymer
43. e ____ is the component that is responsible for con- B. Agar
necting the major connector with the rest and clamp C. Polyether polymer
assembly. D. Polydimethylsiloxane
A. Bar 49. Electrosurgery is contraindicated under what condi-
B. Minor connector tions? (Choose all that apply.)
C. Proximal plate A. Patient with a transcutaneous electrical nerve stim-
D. Guide plane ulation (TENS) unit
44. e three dimensions of the Munsell Color Order B. Patients with a cardiac pacemaker
System, the basis for shade guides such as Vita Lumin, C. Patients with an insulin pump
are ____. D. Patients with delayed healing
A. Absorption, scattering, and translucency 50. Regarding extracoronal retainers in a removal dental
B. Color, translucency, and gloss prosthesis, which ones originate above the survey line?
C. Size, shape, and interactions with light (Choose all that apply.)
D. Hue, value, and chroma A. Circumferential clasp
45. e purpose of applying a layer of opaque porcelain in B. I bar
a metal-ceramic restoration is to ____. C. T bar
A. Create a bond between the metal and porcelain D. Ring clasp
B. Mask the metal oxide layer and provide a porce-
lain-metal bond