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NBDE1 - Dental Anatomy

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					National Dental Board Exam Part 1
                                        Dental Anatomy Section




            This is the official list of topics indicated to study for the NBDE1 from ADA.org

Tooth Morphology + Pulp Cavity Morphology + Anomalies                                        (52Questions)
 -   The following points of both permanent and deciduous teeth will be asked in the following
     points:
     o General characteristics.
     o Unique Characteristic ( eg, Cusp of carabelli, Bull horn root…etc)
     o Limit characteristics (largest mesiodistal, longest tooth…etc)
     o Comparative Characteristics ( Primary 2nd maxillary molar mostly resembles 1st permanent
         maxially molar)
     o Geometrical shape ( Occlusal, mesial, facial, distal, lingual)
     o Height of Contour.
     o Contact point/area.
     o Embrasures.
     o Cervical line (location and curvature direction in all 4 views).
     o Pulp shape in the crown and roots (sectional).          (5 Questions)
     o Roots (% numbers, shape, curvature and direction)
     o Dental Anomalies (Structure, Numbers, shape, Formation…etc) (8 Questions)

Some Limit characteristics:

 -   Widest Mesio-Distal :                                                           Lower First Molar
 -   Widest Mesio – Distal Anteriorly         :                                      Upper Central
 -   Only Tooth with Pulp wider Mesio-distally than facaiol-lingually :    Upper Central
 -   Widest Facio-lingually:                                                         Upper First Molar
 -   Widest Facio-lingually Anteriorly:                                              Upper Canine
 -   Narrowest facially than lingually:                                              Upper First Molar
 -   Tallest tooth incisal – Gingival:          Upper canine > Lower Canine.
 -   Tallest Crown Incisal – Gingival:                  Lower Canine > Upper central > Lower Canine.
 -   Longest Root:                                                                   Upper Canine
 -   Most Symmetrical Tooth:                                                         Lower Central
 -   Smallest:                                                                       Lower Central
 -   Narrowest Mesio-distally:                                                       Lower Central
 -   Most Congenitally malformed or missing:                      3rd molars > upper Lateral




Created By Dr. Mohsen S. Ozaibi | www.ozident.com | All Rights Reserved 2013
                           Calcification  Eruption  Root Completion                                                                               (6 Questions)
                             -     Permanent and deciduous teeth

                                                                                                               Years
                Tooth                  F.Sc         C.C       6       7         8         9          10        11          12              13         14          15         17        18
                3rd molar             7–9Y         17- 21 Y                    F.Sc.                                                                                        E – 21   R.C .-25
                2nd molar            2.5 – 3 Y     12- 13 Y                                                                         E                      R.C.
                1st molar              Birth        6- 7 Y        E                           R.C.
Maxillary




                2nd premolar            2Y         10- 12 Y                                                      E                        R.C.
                1st premolar           1.5 Y       10- 11 Y                                                E           R.C.
                canine                4-5M         11– 12 Y                                                            E                              R.C.
                lateral incisor      10 - 12 M      8– 9 Y                          E                          R.C.
                central incisor       3–4M          7- 8 Y                E                         R.C.
                central incisor       3–4M          6- 7 Y        E                      R.C.
                lateral incisor       3–4M          7- 8 Y                E                         R.C.
Mandibular




                canine                4–5M          9- 10 Y                                     E                                         R.C.
                1st premolar         1.75 – 2 Y    10- 12 Y                                                      E                      R.C.
                2nd premolar           2.5 Y       11- 12 Y                                                            E                R.C.
                1st molar               Birth       6- 7 Y        E                           R.C.
                2nd molar            2.5 – 3 Y     11- 13 Y                                                                     E                          R.C.
                3rd molar             8 – 10 Y     17- 21 Y                                                                                                                 E – 30   R.C - 30
                                                                          Eruption of Permanent Teeth

                            F.Sc. = First sign of Calcification /C.C. = Crown Completion/ E = eruption / R.C. = Root Completion
                                                           Y= years / M= Months / Pre = before birth



                                        W.U                                                                     Moths After birth
                 Tooth                  F.Sc           C.C.       8       10        11        13      16        18         19       20         24     27     28        29      30    36         40
                 2nd molar            19th W.U.       11 M                                                                                                              E            R.C.
                 1st molar           15.5 W.U.         6M                                             E                                                                       R.C.
  Maxillary




                 canine              17th W.U.         9M                                                                  E                                                                R.C.
                 lateral incisor     16th W.U.        2.5 M                         E                                                          R.C.
                 central incisor      14th W.U.       1.5 M               E                                     R.C.
                 central incisor      14th W.U.       2.5 M       E                                             R.C.
   Mandibular




                 lateral incisor      16th W.U.        3M                                     E                 R.C.
                 canine               17th W.U.        9M                                                                           E                                                       R.C.
                 1st molar           15.5th W.U.      5.5 M                                           E                                                      R.C.
                 2nd molar            18th W.u.       10 M                                                                                             E                             R.C.


                           F.Sc. = First sign of Calcification /C.C. = Crown Completion/ E = eruption / R.C. = Root Completion
                                                         W.U. = Weeks in utero / M = Months After Birth




                           Created By Dr. Mohsen S. Ozaibi | www.ozident.com | All Rights Reserved 2013
Occlusion and function                                                           (37 Questions)


  -   Concepts of Occlusion
      o Arch to Arch Relationship.
      o Holding Cusps.
      o Guiding Cusps
      o Angle Classifications
      o Curves (curve of Spee ..eg)
  -   Movements
      o Functional / Contact Movement.
      o Protrusive Movement (Protrusive Gliding).
      o Lateral Contact Movement.
      o Lateral Protrusive Movement.
      o Recording Movements.
  -   TMJ.
  -   Chewing.
  -   Swallowing
  -   Oral Motor behavior and Neurobehavioral (Biting on something Hard will cause reflex of opening)



Ethics                                                                           (1 Questions)
  -   Just Study from the Dental Decks for the Ethics and patient management.




Sources To Study
  -   Wheeler’s Dental Anatomy, Physiology and Occlusion.
  -   Dental Anatomy (Kaplan NBDE1).
  -   Dental Decks
  -   First Aid NBDE1
  -   Exams (old exam to test your self.




Remember That this is the Easiest Section in the NBDE1 and the Best to
score Over 80+, So don’t underestimate it.
Also, Because it’s the easiest Section, I recommend you start this section first, so once you finish it
you will have the confidence that you finished ¼ of the NBDE1 Study.




Created By Dr. Mohsen S. Ozaibi | www.ozident.com | All Rights Reserved 2013

				
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Description: Here is a Basic Guide in the National Dental Board Examination Part 1 for the Dental Anatomy Section