Dental Terminology and Anatomy Canvas Quiz set

What are the tooth numbers for the first molars? (Universal System)

3,14,19,30

Which will generally be larger, buccal or lingual embrasures?

Lingual

Anterior teeth have how many named line angles?

6

Posterior teeth have 8 line angles and all teeth have 4 point angles.

When viewed from the proximal, maxillary molars have ___ shape, while mandibular molars have ___ shape.

Trapezoidal, Rhomboidal

Maxillary molars are trapezoidal from a proximal view, mandibular molars are rhomboidal from a proximal view.

The two most common eruption sequences for maxillary teeth are ___ and ___. (Palmer notation) Choose two options:

6-1-2-4-3-5-7-8

1-2-4-3-5-6-7-8

6-1-2-5-3-4-7-8

6-1-2-4-5-3-7-8

6-1-2-4-3-5-7-8

6-1-2-4-5-3-7-8

Tooth #6 will have its mesial and distal proximal contacts at the ____ and ___:

IJ

JM

MM

JM

What is this photo an example of?

Concrescence

Fusion

Gemination

Dilaceration

Fusion

Maxillary lateral incisors may exhibit which of the following?

Peg shape

Microdontia

Congenitally missing

All of the above

All of the above

Which tooth has a cervical line curvature on the mesial that is greater than on any other surface of any other tooth in the mouth.

A) Maxillary Lateral Incisor

B) Maxillary Central Incisor

C) Mandibular Central Incisor

D) Mandibular Lateral Incisor

B) Maxillary Central Incisor

Relative to its crown, this tooth would have the shortest root.

#8

#10

#27

#29

#8 (max. cent. incisor)

Facial and lingual heights of contour will be located in the ___ third of maxillary incisors.

Incisal

Cervical

Middle

Cervical

Which tooth below would commonly have a lingual pit and may have a linguogingival groove extending from that pit apically.

#9

#25

#10

#23

#10 (max. lat. incisor)

A common supernumerary tooth located between the maxillary central incisors is called:

A) Peg lateral

B) Mesiodens

C) Hutchinson incisor

D) Talon cusp

B) Mesiodens

Central incisors will have how many nerve canals in the root?

1 (one)

Maxillary and Mandibular anterior teeth from the PROXIMAL aspect are:

Rhombiodal

Trapezoidal

Triangular

Oval

Triangular

The crown of a mandibular lateral incisor, compared to the crown of a mandibular central incisor in the same mouth, is best

More symmetrical

Generally larger in all dimensions

Having more distinct lingual anatomy

Having a better developed labial ridge

Generally larger in all dimensions.

The central incisors are considered the smallest teeth in the mouth.

When looking from the incisal, which of the following teeth has a faciolingual dimension that is greater than the mesiodistal dimension? More than one answer is correct:

#9

#10

#24

#26

#24 and #26 aka mandibular central and lateral incisors.

The mandibular central incisor occludes with how many teeth in an ideal occlusion.

1

2

3

4

1 (one)

Which of the following traits would be useful for distinguishing the mandibular lateral incisors from the central incisors? More than one answer is correct:

A) The lateral incisor is wider faciolingually than mesiodistally

B) The central incisors crown is triangular in shape when viewed from the proximal

C) The central incisor's incisal edge is straight & is close to right angles to the long axis of the tooth

D) Lateral incisor crown appears "twisted" on the root

C) The central incisor's incisal edge is straight & is close to right angles to the long axis of the tooth

D) Lateral incisor crown appears "twisted" on the root

While A is true, it's also true for central mandibular incisors

While B is true, it's also true for lateral mandibular incisors

The alveolar bone over the maxillary canines that bulges outward due to the shape of the root is known as the:

Canine prominence

Canine eminence

Canine tuberosity

Canine shelf

Canine eminence

When considering crown and root length combined, which tooth is generally considered to be the longest of the permanent teeth?

Maxillary central incisor

Mandibular canine

Maxillary first molar

Maxillary canine

Maxillary canine

Which of the following teeth would you expect to have the most prominent cingulum?

#11

#9

#7

#27

#11

The anterior tooth that most frequently exhibits a bifurcated root is the:

Maxillary canine

Mandibular canine

Mandibular later incisor

Maxillary later incisor

Mandibular canine

The feature on the facial of canines that helps distinguish it from other anterior teeth is called the:

Labial developmental depressions

Mamelon

Mesio and distoincisal angles close to 90 degrees

Labial ridge

Labial ridge

The proximal contacts for #27 are located at the___ on the mesial and the ___ on the distal.

Incisal, Incisal

Incisal, Junction

Incisal, Middle

Junction, Middle

Incisal, Middle

On tooth #22, which cusp ridge is much longer than the other?

Distal

Mesial

Lingual

Buccal

Distal

Which tooth is the only permanent tooth where the mesial cuspal ridge of the facial cusp is longer than the distal cuspal ridge?

A) Maxillary Canine

B) Mandibular Canine

C) Mandibular first premolar

D) Maxillary first premolar

D) Maxillary first premolar

Looking at #5 from the lingual, the lingual cusp appears _____ and the buccal cusp appears ______ to mesiodistal long axis bisector.

A) Mesial, Mesial

B) Distal, Distal

C) Mesial, Distal

D) Distal, Mesial

C) Mesial, Distal

Very significant in differentiating max. 1st and max 2nd pre-molars

On which tooth and surface would you find a marginal ridge developmental groove?

Correct answer:

A) #12 M

B) #4 M

C) #5 D

D) 3 D

A) #12 M

Other answer is #5M

The marginal ridge developmental groove is located on the mesial aspect of the max. 1st first premolar. It is perpendicular to the faciolingual long axis bisector.

Some distinguishing features of a maxillary second premolar that would help you identify it from a maxillary first premolar include all except?

A) More supplemental grooves

B) Buccal cusp more blunt

C) Occlusal table is a hexagon with unequal sides

D) Mesial cusp ridge is shorter than the distal cusp ridge

C) Occlusal table is a hexagon with unequal sides

The occlusal table for a 1st and 2nd max. pre-molar is rectangular.

Crown outline for max. 2nd premolar is oval

Crown outline for max. 1st premolar is hexagonal.

A maxillary first premolar will most likely have ___ roots. A maxillary second premolar will most likely have ___ roots.

2, 1

Max. 1st premolar = 2 roots.

Max 2nd premolar = 1 root

For all maxillary premolars, the facial height of contour is in the _____ third of the tooth. The lingual height of contour is in the ____ third of the tooth.

A) Incisal, Middle

B) Cervical, Middle

C) Cervical, Cervical

D) Middle, Middle

B) Cervical, Middle

Mandibular second premolars have three different developmental groove shapes represented by the letters:

A) H,Y, V

B) H,Y, U

C) H,T, U

D)H,T, V

B) H,Y, U

Y = 3 cusp, 3 fossae, most common, square, NO transverse ridge

H & U = 2 cusp. U more common. Round. 2 triangular ridges form 1 transverse ridge

The mandibular second premolar with the Y developmental groove shape will have how many cusps?

1

2

3

4

3 cusps

NO transverse ridges

When looking down on the occlusal surface of #21, one would describe the shape of the occlusal table as a:

A) Triangle

B) Circle

C) Trapezoid

D) Diamond

A) Triangle

#21 = mand. 1st pre-molar.

Mand 1st pre-molar has triangular occlusal table and diamond occlusal outline

A three cusped mandibular second premolar will have ____ transverse ridges. A two cusped mandibular premolar will have ____ transverse ridge.

zero, one

Which of these teeth from the same mouth would you expect to be the largest?

#28

#21

#29

#29

Mand. 2nd premolars > Mand. 1st premolars

Max. 1st premolars > Max. 2nd premolars

Which of the teeth listed below would have a lingual cusp that is shorter and more like a cingulum?

#5

#12

#20

#28

#28

Other answer: #21

Mand 1st pre-molar has lingual cusp much shorter than facial cusp--lingual cusp similar to cingulum.

Which tooth is most likely to have a distal cusp notch when viewed from the buccal?

#4

#13

#20

#28

#20

All molar crowns have a buccal to lingual taper except:

A) Mandibular first molar

B) Mandibular second molar

C) Maxillary first molar

D) Maxillary second molar

C) Maxillary first molar

When looking from the occlusal or incisal view, which tooth would be wider in the Faciolingual dimension than the mesiodistal dimension?

Incorrect answer:

#18

#14

#30

#9

#14

AKA max. 1st molar

All the following statements are true about maxillary third molars except:

A) Tooth least likely to form

B) Least amount of supplemental grooves compared to 1st and 2nd maxillary molars

C) Can range from rhomboidal to heart shaped from the occlusal view

D) Smaller in all dimensions than the other maxillary molars

B) Least amount of supplemental grooves compared to 1st and 2nd maxillary molars

The root most likely to have two canals is:

Correct answer:

#3 MB

#3 DB

#3 P

#2 DB

#3 MB

All of the following are named fossa on maxillary first molars except:

A) Mesial triangular fossa

B) Distal triangular fossa

C) Central fossa

D) Distal fossa

E) None of the above

E) None of the above

Maxillary 1st molars typically have a fifth cusp called the cusp of ___.

A) Carabelli

B) Balotelli

C) Farfalle

D) Donatello

A) Carabelli

The oblique ridge of the maxillary 1st molars is formed by the ___ and ___.

A) The triangular ridge of the distobuccal cusp, the distal cusp ridge of the mesiolingual cusp

B) The triangular ridge of the mesiobuccal cusp, the distal cusp ridge of the mesiolingual cusp

C) The triangular ridge of the distobuccal cusp, the mesial cusp ridge of the mesiolingual cusp

D) The triangular ridge of the mesiobuccal cusp, the mesial cusp ridge of the mesiolingual cusp

A) The triangular ridge of the distobuccal cusp, the distal cusp ridge of the mesiolingual cusp

Which tooth would you expect to be the shortest tooth occlusocervically?

#14

#15

#18

#19

#18

Mandibular Molars typically have ____ roots. These are the ____ and ____ roots.

A) 3, Mesiobuccal, Distobuccal, Lingual

B) 3, Mesiolingual, Distolingual, Buccal

C) 2, Mesial, Distal

D) 2, Buccal, Lingual

C) 2, Mesial, Distal

What anatomical feature is located just apical to the buccal pit on mandibular first molars?

A) Buccal developmental groove

B) Talon cusp

C) Buccal concavity

D) Cervical ridge

D) Cervical ridge

How many cusps are visible from the lingual of #30?

1

2

3

4

3

The ______ crown is defined as the amount of tooth exposed occlusal to the gingiva.

A) Anatomical

B) Clinical

B) Clinical

Developmental grooves of the mandibular first molar include:

A) Central Groove

B) Mesiobuccal Groove

C) Distobuccal Groove

D) Lingual Groove

E) All of the above

E) All of the above

Tooth #19 will have how many transverse ridges?

0

1

2

3

0

#19 = Mand 1st molar. No transverse ridges

Tooth #18 will have how many transverse ridges?

0

1

2

3

2

#18 = Mand. 2nd molar. 2 transverse ridges

Mandibular second molars typically have ____ cusps and ____ named grooves

4,4

5,3

5,4

4,3

4,3

Mand 2nd molar = 4 cusps, 3 grooves

All the following are succedaneous teeth except:

#4

#19

#12

#28

#19

Succedaneous teeth = permanent teeth that replace primary teeth. Max and mand. premolar to premolar.

The primary teeth that typically erupt first are the _____.

A) Maxillary central incisors

B) Mandibular central incisors

C) Maxillary 1st molars

D) Mandibular 1st molars

B) Mandibular central incisors

The space associated with primary canines is known as:

Hyper space

Leeway space

Primate space

Deep space

Primate space

You are completing a periodic oral examination on woman who had her first baby two months ago. She asks when she can expect her baby to get its first teeth. You reply that they generally appear at:

3 months

5 months

7 months

11 months

7 months

Primary molars generally resemble a permanent tooth. Which tooth would be the exception to this?

A

J

K

S

S

The mand. 1st primary molar (replaced by 1st PRE-molar) does not resemble any other tooth.

Baby teeth:

AJ

KT

You hear your child singing about only wanting his/her front teeth for Christmas. You reassure them that the permanent maxillary central incisors generally erupt at what age?

7-8 yrs old

5-6 yrs old

9-10 yrs old

3-4 yrs old

7-8 yrs old

The horizontal measurement of distance between the edge of the maxillary incisors to the mandibular incisors is known as:

A) Overbite

B) Overjet

C) Overplane

D) Overocclusion

B) Overjet

Overjet = horizontal measurement

Overbite = vertical measurement

All of the following are true about centric cusps except:

A) Support forces of occlusion

B) Oppose embrasures or grooves in the opposing dentition

C) Positioned approximately 1/3 into the total buccolingual dimension

D) Maintain vertical dimension

B) Oppose embrasures or grooves in the opposing dentition

Centric stops are areas of occlusal contact that a supporting cusp makes with opposing teeth in centric occlusion. They are typically the _____ or ____ of opposing arch.

A) Central fossa

B) Cusp ridges

C) Marginal ridges

D) Cusp tip

A) Central fossa & C) Marginal ridges

The Non centric cusps are also know as all of the following except:

A) Non working cusps

B) Guiding cusps

C) Supporting cusps

D) Shear cusps

C) Supporting cusps

Each tooth opposes 2 teeth in the opposite arch, EXCEPT: (more than 1 answer may be correct)

A) Mandibular central incisor

B) Maxillary central incisor

C) Maxillary third molar

D) Mandibular third molar

The centric cusps are:

(May choose more than one).

A) Maxillary lingual cusps

B) Maxillary buccal cusps

C) Mandibular lingual cusps

D) Mandibular buccal cusps

A) Maxillary lingual cusps & D) Mandibular buccal cusps

_____ cusps are sharper cusps with defined cusp ridges and tips.

A) Centric

B) Non-centric

B) Non-centric