What is the formula for the Human Permenant Dentition?

I 2/2 C 1/1 P2/2 M 3/3

Total # of teeth: 32 

What is the formula for the primary Human Dentition?

I 2/2 C 1/1 M 2/2

Total # of primary Teeth: 20 

Where are the interproximal contact point for the following maxillary teeth?

            1) Maxillary Central incisor: Mesal-Distal   

            2) Maxillary Lateral incisor: Mesial-Distal

            3) Maxillary Canine: Mesial-Distal   

         1) I 1/3 - Jnx of I & M 1/3 (I-J)

         2) Jnx of I & M 1/3 - M 1/3 (J-M)

         3) Jnx of I & M 1/3 - M 1/3 (J-M)

Where are the interproximal contact points for the following teeth?

        1) Mandibular Central? M-D

        2) Mandibular Lateral? M-D

        3) Mandibular Canine? M-D
 

        1) Incisal 1/3 - Incisal 1/3

        2) Incisal 1/3 - Incisal 1/3

        3) Incisal 1/3 - Middle 1/3

Where are the interproximal contact points for all of the posterior teeth both maxillary and mandibular?

All poster tooth contacts are at the Middle 1/3 except the mesial surface of the max and man Molars which are at the Junction of the occlusal and middle 1/3.

1PMs: M-M, 2PMs M-M

1Ms: J-M, 2Ms J-M 

Where are the interproximal Contact points facial-lingually looking down on teeth?

What are the exceptions? 

All facio-lingual contacts are in the middle 1/3.

Mandibular molars are also middle 1/3 but they tend slightly toward the facial. 

Where are the facial heights of contour located on all teeth? What are the exceptions?

All teeth have a facial height of contour in the cervical 1/3 except mandibular molars which have a height of contour at the junction of the cervical and middle 1/3. 

Where are the lingual heights of contour located on anterior teeth and posterior teeth?

What are the exceptions? 

 Anterior teeth have lingual height of contour at the cervical 1/3.

Posterior teeth have it at the middle third, except for the mandibular 2nd Premolar which has a lingual height of contour in the Occlusal 1/3. 

What are the Anterior facial embrasure sizes from largest to smallest?

    1) Max C-L: Largest

    2) Man C-L

    3) Max CI-L 

    4) Max CI-CI

    5) Man CI-L

    6) Man CI-CI: Smallest

Are the facial embrasures bigger or are the lingual embrasures typically bigger? Exceptions?

Lingual embrasures are typically larger.

        Except the

                    Maxillary first Molar and

                    Mandibular Centrals.  

What are the dates of calcification of Primary teeth?

Of permenant teeth? 

Primary teeth begin to calcify in utero.

Permenant 6-year molars (1M) @ birth.

Permenant Anteriors before age 1

Permenant Premolars before age 2

12 year Molars (2M) around age 3

Wisdom teeth (3M) from 7-9  

What is the order and dates of eruption for primary teeth?

  1)  Primary Incisors: 6 months

  2)  Primary first molars: age 1

  3)  Primary Canines: age 1.5 

  4)  Primary second molars: age 2  

What is the order and dates of eruption of Permenant teeth?

    1) 1st Molars                        6

    2) Man CI                             6-7

    3) Man L                              7-8

    4) Max CI                             7-8

    5) Max L                               8-9

    6) Man C                              9-10

    7) Premolars (1 then 2)      10-12

    8) Max C                               11-12

    9) 2M                                   12

    10) 3M                                 17-21

What is the incisal Edge orientation of the following teeth? 

    1) Max Incisors

    2) Man Incisors

    3) Max Canines

    4) Mand Canines

    5) Man 2PM 

What are the shapes of teeth from the following view? Exceptions?

       1) Facial or lingual view:

       2) Proximal view:

                A) Anterior teeth:

                B) Maxillary Posterior teeth:

                C) Mandibular posterior teeth:

    1) All teeth have a trapazoidal shap

    2) A) Traingle

        B) Trapazoid (long side gingivally)

        C) Rhombus

Most teeth have a shorter mesial cusp slope than the distal cusp slope, What are the two exceptions?

The PRIMARY maxillary canine and the Permenant Maxillary First PreMolar. 

All teeth develope from four lobes except which two?

 First Molars

& Mandibular 2PM (3-cusp type) 

develope from 5 lobes. 

Which cusp is typically the largest cusp of Molars? 

The Mesial cusp on the supporting side. 

What is the % calicification of enamel and dentin? 

Enamel is 96-97% Calcified

Dentin is 20-25% Calcified 

In what direction are all roots Tips inclined? What is the one exception? 

DISTALLY. Except for THE MANDIBULAR CANINE which HAS AN APEX THAT INCLINES MESIALLY. 

If one root has two root canals, in what direction will they be oriented?

Facially and lingually.

To what age does flouride need to be taken? (in other words, at what age are the crowns completely calcified?)

The 2nd Molars complete calcification at the age of 6-7 so flouride should be administered up to that age. That is discounting the 3rd Molars. 

Which usually erupt first, Mandibular or maxillary teeth? 

Mandibular teeth usually erupt first. 

The root of Primary teeth are not fully formed when the tooth erupts, how long after eruption is the root completely formed?  What about Permenant teeth?

Primary teeth: 1.5 years 

Permenant teeth: 2.5 years 

What is the relationship between the Facial and lingual embrasures of a mandibular Central incisor? 

Both the same size. 

What teeth are most likely to be on the Boards? 

ANTERIOR TEETH

MAXILLARY FIRST PRE-MOLARS

MAXILLARY FIRST MOLARS 

Widest Tooth Mesio-Distally?

 
Mandibular First Molar
 

Widest ANTERIOR tooth mesio-distally?

Maxillary Central

Which is the only Tooth with Pulp wider Mesio-distally than facial Lingually? 

Maxillary Central 

Widest tooth Facio-lingually?

Maxillary First Molar 

Widest Anterior Tooth Facio-lingually?

Maxillary Canine 

Only tooth Narrower Facially than Lingually? 

Maxillary First Molar 

Tallest TEETH inciso-gingivally? 

1) Maxillary Canine

  2) Mandibular Canine

Tallest Crowns? 

1) Mandibular Canine

2) Maxillary Central

3) Maxillary Canine 

Longest Root? 

Maxillary Canine 

Most Symmetrical Tooth? 

Mandibular Central 

Smallest Tooth?

Mandibular Central 

Narrowest mesio-distally?

Mandibular Central 

Narrowest and smallest rooted PreMolar? 

Mandibular First Premolar 

Most Congenitally missing or Malformed? 

1)  3rd Molar (wisdoms)

2) Maxillary Lateral Incisors 

PreMolar Most Likely to be congenetically missing?

The Mandibular second Premolar 

Best Developed Lingual anatomy?

Maxillary Lateral incisor with its Distal Pit 

Most Likely to have Dens-in-Dente? 

Maxillary lateral incisor 

Greatest constriction from Pulp chamber to canals?

Maxillary First PreMolar 

PreMolar most likely to have only ONE root and ONE root canal? 

Mandibular Second PreMolar 

Anterior tooth most likely to have a Bifurcated root? 

Mandibular Canine 

Only tooth with two triangular ridges on one cusp? 

Maxillary First Molar 

Only Tooth with a mesio-lingual Groove? 

Mandibular First Pre-molar 

Only tooth with a root that is mesially inclined? 

Mandibular Canine 

The only Teeth with Crown concavities? Where? 

Maxillary First Pre-Molar (mesial)

Maxillary First Molar (distal) 

The only teeth with a longer mesial cusp slope than distal? 

Maxillary First PreMolar

Primary Maxillary Canine 

What are the Factors that make Primary teeth different from Permenant teeth? 

What do permentant Anterior teeth have on the incisal edges that primary teeth don't? 

Mammelons 

By what age are all the Primary teeth in occlusion? 

Age 3 

What is the shape of the Primary maxillary Canine facially? 

Diamond Shape. 

Which Primary teeth have all the same characteristics of Permenant first Molars? 

The Primary Second Molars. 

Which is the widest Primary tooth Facio-lingually? 

Primary Maxillary Second Molars 

Which is the Widest Primary tooth MESIO-DISTALLY? 

The Primary Mandibular Second Molar. 

Which Primary teeth resembles no other tooth in the human dentition? 

The primary First Molars:

Which Primary Tooth resembels the Perment Maxillary first premolar, has 3 roots like a permenant maxillary  first molar, and has an H-shaped occlusal groove? 

The Primary Maxillary First Molar 

What is the best tooth to use as an answer when you get a question about primary teeth? 

Primary Mandibular First Molar 

Primary Mandibular First Molar.