Dental Anatomy Molars Quiz

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| By Michelle
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Michelle
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Quizzes Created: 3 | Total Attempts: 6,033
Questions: 10 | Attempts: 3,004

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Tooth Quizzes & Trivia

Questions and Answers
  • 1. 

    Which types of teeth are the exception to having a height of contour on the buccal cervical third and lingual middle third?

    • A.

      Lower first molars

    • B.

      Lower second premolar

    • C.

      Upper second premolar

    • D.

      Upper first molars

    Correct Answer
    B. Lower second premolar
    Explanation
    Lower second premolars are the exception to having a height of contour on the buccal cervical third and lingual middle third. This means that the height of contour, which is the point on the tooth where it bulges the most, is not located in these specific areas on the lower second premolars. The other teeth listed in the options, such as lower first molars, upper second premolars, and upper first molars, do have their height of contour in the buccal cervical third and lingual middle third.

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  • 2. 

    Molar crowns incline towards which surface?

    • A.

      Lingual

    • B.

      Buccal

    • C.

      Mesial

    • D.

      Distal

    Correct Answer
    A. Lingual
    Explanation
    Molar crowns incline towards the lingual surface. This means that the crown of the molar is tilted or slanted towards the inner or back side of the mouth. The lingual surface refers to the surface of the tooth that is closest to the tongue. This inclination helps with the chewing and grinding of food, as well as providing support and stability to the tooth.

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  • 3. 

    This molar surface is similar to the mesial, except smaller.

    • A.

      Anterior mesial

    • B.

      Lingual

    • C.

      Distal

    • D.

      Labial

    Correct Answer
    C. Distal
    Explanation
    The given correct answer is "Distal". In dental anatomy, the term "distal" refers to the surface of a tooth that is farthest from the midline or center of the dental arch. The statement in the question suggests that the molar surface being described is similar to the mesial surface, but smaller in size. Therefore, the correct answer is "distal" as it indicates the surface of the tooth that is located towards the back or away from the midline.

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  • 4. 

    Checkmark all terms associated with mandibular FIRST MOLARS

    • A.

      4 cusps

    • B.

      5 cusps

    • C.

      Offset central groove

    • D.

      Straight central groove

    • E.

      #30 & #19

    • F.

      #31 & #18

    • G.

      No transverse ridges

    • H.

      Parallel transverse ridges

    Correct Answer(s)
    B. 5 cusps
    C. Offset central groove
    E. #30 & #19
    G. No transverse ridges
    Explanation
    The mandibular first molars typically have 5 cusps, an offset central groove, are identified as #30 and #19 in the Universal Numbering System, and do not have transverse ridges.

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  • 5. 

    Checkmark all terms associated with mandibular second molars:

    • A.

      4 cusps

    • B.

      5 cusps

    • C.

      Offset central groove

    • D.

      Straight central groove

    • E.

      #18 & #31

    • F.

      #17 & #30

    • G.

      No transverse ridges

    • H.

      Parallel transverse ridges

    Correct Answer(s)
    A. 4 cusps
    D. Straight central groove
    E. #18 & #31
    H. Parallel transverse ridges
    Explanation
    Mandibular second molars typically have 4 cusps, a straight central groove, and parallel transverse ridges. Additionally, they are located at positions #18 and #31.

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  • 6. 

    The largest mandibular molar cusp is the.....

    • A.

      ML

    • B.

      MB

    • C.

      DL

    • D.

      DB

    Correct Answer
    B. MB
    Explanation
    The largest mandibular molar cusp is the MB (mesiobuccal) cusp. This cusp is located on the mesial and buccal aspect of the mandibular molar, making it the largest and most prominent cusp on the tooth. It is responsible for the initial contact during chewing and plays a crucial role in the mastication process.

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  • 7. 

    Match the following terms associated with maxillary first molars

    • A.

      #3 & #14

    • B.

      #2 & #15

    • C.

      No cusp of Carabelli

    • D.

      Cusp of Carabelli

    • E.

      DB to ML Oblique ridge

    • F.

      5 functional cusps

    • G.

      4 functional cusps

    Correct Answer(s)
    A. #3 & #14
    D. Cusp of Carabelli
    E. DB to ML Oblique ridge
    G. 4 functional cusps
    Explanation
    The maxillary first molars typically have a cusp of Carabelli on the mesiolingual (ML) cusp (#14). Additionally, they have a prominent oblique ridge running from the distobuccal (DB) cusp to the ML cusp. In terms of functional cusps, maxillary first molars have four functional cusps, which include the mesiobuccal (MB), distobuccal (DB), mesiolingual (ML), and distolingual (DL) cusps. Therefore, the correct matching terms for #3 and #14 would be Cusp of Carabelli, DB to ML Oblique ridge, and 4 functional cusps.

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  • 8. 

    Checkmark all of the terms associated with maxillary second molars:

    • A.

      #2 & #15

    • B.

      #3 & #14

    • C.

      Rectangle

    • D.

      Rhomboid

    • E.

      5 functional cusps

    • F.

      4 functional cusps

    • G.

      No cusp of Carabelli

    • H.

      Cusp of Carabelli

    • I.

      DB to ML oblique ridge

    Correct Answer(s)
    A. #2 & #15
    D. Rhomboid
    F. 4 functional cusps
    G. No cusp of Carabelli
    I. DB to ML oblique ridge
    Explanation
    Maxillary second molars typically have two roots, referred to as #2 and #15. The shape of the crown of these molars is rhomboid. They have four functional cusps, meaning that these cusps are involved in the chewing and grinding of food. There is no cusp of Carabelli present on maxillary second molars. Additionally, these molars have a distinguishing feature called the DB to ML oblique ridge, which extends diagonally from the distobuccal cusp to the mesiolingual cusp.

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  • 9. 

    The largest & longest cusp on the maxillary molars is the...

    • A.

      DL

    • B.

      DB

    • C.

      MB

    • D.

      ML

    Correct Answer
    D. ML
    Explanation
    The correct answer is ML, which stands for mesiolingual. The mesiolingual cusp is the largest and longest cusp on the maxillary molars. It is located on the inner side of the tooth, towards the front (mesial) and towards the tongue (lingual). This cusp is important for chewing and grinding food, as it helps in the breakdown of food particles.

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  • 10. 

    ____________ molars are trifuracted.

    Correct Answer
    Maxillary
    Upper
    Explanation
    Maxillary molars refer to the molars located in the upper jaw. The term "trifurcated" means that these molars have three roots. Therefore, the correct answer is "Maxillary, Upper" as it accurately describes the specific type of molars that are trifurcated.

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