Dental Practice Questions

69 Questions | Total Attempts: 1315

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Dental Practice Questions - Quiz

Dental Practice Questions


Questions and Answers
  • 1. 
    Mercury vaporization is an amalgam restorative procedure utilizing well-sealed, premeasured capsules is MOST likely to occur during
    • A. 

      Mulling

    • B. 

      Carving

    • C. 

      Condensation

    • D. 

      Trituration

    • E. 

      High-speed evacuation

  • 2. 
    Facial nurve supply:
    • A. 

      Less than 6 blades

    • B. 

      6-7 blades

    • C. 

      10-12 blades

    • D. 

      More than 12 blades

  • 3. 
    In a estorative problem involving all teeth in the mouth, the protrusive condylar path inclination has its PRIMARY influence on
    • A. 

      Incisal guidance

    • B. 

      Anterior teeth only

    • C. 

      Mesial inclines of mandibular cusps and distal inclines of maxillary cusps

    • D. 

      Mesial inclines of maxillary cusps and distal inclines of mandibular cusps

    • E. 

      Mesial inclines of maxillary cusps and lingual inclines of of mandibular cusps

  • 4. 
    Cementum contain cell like bone and it is ellow in color in vital, extracted, or avulsed tooth but in non vital tooth, its color is dark
    • A. 

      True

    • B. 

      False

  • 5. 
    Crown with open margin can be due to
    • A. 

      Putting die spacer on finishing line

    • B. 

      Waxing not covering all crown prep

    • C. 

      Over contouring of crown prevent seating during insertion

    • D. 

      All of the above

  • 6. 
    During examination of an edentulous patient wearing old dentures, the tissues under the denture base appear unusually hypermic with small petechial hemorrhages present.  This condition most likely results from the patient's
    • A. 

      Clenching his teeth

    • B. 

      Thermal expansion of the parts

    • C. 

      Uniform application of heat

    • D. 

      Thermal contraction of the parts

    • E. 

      Cleansing of the parts

  • 7. 
    Three weeks after delivery of a unilateral distance extension mandibular removable partial denture, a patient complains of a sensitive abutment tooth.  Clinical examination reveals sensitivity to percussion of the tooth.  The most likely cause is :
    • A. 

      Defective occlusion

    • B. 

      Exposed dentin at the bottom of the occlusal rest seat

    • C. 

      Galvanic action between the framework and an amalgam restoration

  • 8. 
    The lifting of a mandibular partial deture with distal extension bases may be corrected by
    • A. 

      Narrowing the teeth

    • B. 

      Reducing overextended borders

    • C. 

      Tightening the brace arms

    • D. 

      Tightening the retention arms

  • 9. 
    Periodontal ligament fibers in the middle third of the root is
    • A. 

      Oblique

    • B. 

      Horizontal

    • C. 

      Transeptal

  • 10. 
    Orthognathic ridge relationship (class II ) present several problems, which should be taken into consideration when constructing a complete denture prosthesis.  These include all EXCEPT:
    • A. 

      Require minimum interocclusal distance

    • B. 

      Require careful occlusion, usually cuspless teeth are indicated

    • C. 

      Have great range of jaw movement in finction

  • 11. 
    An 18 year old patient comes complaining of pain, bad breath and bleeding gingival.  This began over the weekend while studying for final examination.  The patient may have which of the following conditions
    • A. 

      Acute necrotizing ulcerative gingivitis

    • B. 

      Making this up to skip school

    • C. 

      Rapidly progressive periodontiti

    • D. 

      Desquamative gingivitis

    • E. 

      Acute periodontal cyst

  • 12. 
    Patient on treatment with steroids are placed on antibiotics after oral surgical procedures because:
    • A. 

      Antibiotics are synergistic to steriods

    • B. 

      The patient is more susceptble to infection

    • C. 

      Antibioitcs ingibits Herksheimer reaction

    • D. 

      Antibiotics is a mixture of ants and soda

  • 13. 
    Which of the following influence tooth temperature during a cutting procedure?I. Diameter of the burII. Sharpness of the burIII. Bur/tooth contact timeIV. Type of coolant usedV. Amount of force applied to the bur
    • A. 

      I, II, III, IV

    • B. 

      I, II, III, IV, V

    • C. 

      I, II, IV

    • D. 

      I, II, III, V

    • E. 

      II, III, V

  • 14. 
    The functions of periodontal ligament include
    • A. 

      Formative function

    • B. 

      Mechanical function

    • C. 

      Sensory function

    • D. 

      All of the above

  • 15. 
    The application of rubber dam for Class V facial preparation to include #212 clamp on a mandibular second premolar requires the hole for the second premolar punchedi. larger than usualii. smaller than usualiii. slightly the lingual of the other holes in the archiv. slightly the facial of the other holes in the arch
    • A. 

      I only

    • B. 

      I, iv

    • C. 

      I, iii

    • D. 

      Ii, iv

    • E. 

      Ii, iii

  • 16. 
    It has been proven that amalgam restoration has the following characteristics.  1. Micro leakage decrease with aging of the amalgam restoration2. it is the least techniques sensitive of all current direct  restorations3. High dimensional changes
    • A. 

      1, 2, and 3

    • B. 

      1 & 3

    • C. 

      1 & 2

    • D. 

      2 only

  • 17. 
    Recent years, there has been an evidence that he prevalence and intensity of the caries attack has been diminishing in the more economically developed countries , mainly because o the wide spread use of: 
    • A. 

      Artificial water fluoridation

    • B. 

      Fluoride toothpaste

    • C. 

      Dental health education programs

    • D. 

      A & C

    • E. 

      All of the above

  • 18. 
    The setting time of a zinc oxide-eugenol impression paste may BEST be accelerated by
    • A. 

      Adding a drop of water to the mix

    • B. 

      Adding a drop of oleic acid to the mix

    • C. 

      Increasing the amount of zinc oxide

    • D. 

      Chilling the mixing slab and the spatula

  • 19. 
    Polysulfide impression materials set FASTER as a result ofi. low relative humidityii. decreasing the temperature of the mixing pad below the dew point of the roomiii. decreasing the temp of the mixing slabiv. a high ambient temp
    • A. 

      I, ii, iv

    • B. 

      I, iii

    • C. 

      Ii only

    • D. 

      Ii, iv

    • E. 

      Iv only

  • 20. 
    A 7 yr old boy has an exquisitely painful mouth for a period of 4 days.  Three days prior to the onset of the local symptoms, he had palpable, tender, submandibular lymph nodes and a temp of  101.2F.  Oral exam reveals a generalized infammation of the attached gingiva & alveolar mucosa.  Loose white debris covers the free gingival margins and fills the interproximal embrasures. Discrete areas of ulceration within rings of intense inflammation are noted on the buccal mucosa and the palate. Theinterdental papillae are intact.  The dalivary flow is heavy and viscous.   There are no lesions on the extremiies.  The condition described is
    • A. 

      Moniliasis

    • B. 

      Erythema multiforme

    • C. 

      Acute herpetic gingivostomatitis

    • D. 

      Necrotizing ulcerative gingivitis

    • E. 

      Cystelcosis

  • 21. 
    The pt gingiva is described as pink , firm and stippled; however he complains of "bleeding gums" and bleeds upon probing.  Which of the following statements is NOT true ?
    • A. 

      Inflammation must still remain in the deeper tissues

    • B. 

      The disease must be chronic in nature

    • C. 

      The probing was done too vigorously

    • D. 

      None of the above

  • 22. 
    Gingivitis during pregnancy results from an
    • A. 

      Overgrowth of tissue which is unrelated to local irritation

    • B. 

      Increase in local irritation by an alteration of the saliva

    • C. 

      Alteration the tissue response to local irritation

    • D. 

      All of the above

  • 23. 
    Root canal therapy was completed on tooth #14 and the crown was restored with a gold onaly 2 weeks ago.  The pt is now complaining that the tooth feels long and hurts when he bites.  He cannot chew on that side.  Evaluation of the circumstances should begin with:
    • A. 

      Thermal testing

    • B. 

      Percussing the tooth

    • C. 

      Radio graphic exam

    • D. 

      Electric pulp testing

  • 24. 
    Attraction or fixation of microorganisms in areas of inflammation is known as
    • A. 

      Glapedesis

    • B. 

      Anachoresis

    • C. 

      Synthrophism

    • D. 

      Focal infection

    • E. 

      Panadol

  • 25. 
    Dentin composition
    • A. 

      60-65 inorganic by wgt (70% inorganic by volume)

    • B. 

      25% water by wgt (12% water by volume)

    • C. 

      43% organic by wgt ([email protected] organic by volume)

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