Dental Anatomy: Quiz 4: Unit 4: Review Questions and Answers 2022
The permanent mandibular canine normally erupts at (what age?) Ans- 9-10 years
*At age 13, permanent canines which have erupted include: Ans- all canines
On the crowns of permanent maxillary canines, the structure which is sometimes found separating the lingual fossa area and the cingulum is the: Ans- Linguogingival groove
*On the labial surface of the permanent maxillary canine,
normally the cervical line is:
(1) symmetrically convex toward the apex.
(2) asymmetrically convex toward the apex.
(3) symmetrically convex toward the incisal.
(4) asymmetrically convex toward the incisal.
(5) relatively straight. Ans- 1. symmetrically coves toward the apex
*Consider the total area of the proximal crown surfaces of
the permanent canines. In most cases, the largest is:
(1) the mesial surface of the maxillary canine.
(2) the distal surface of the maxillary canine.
(3) the mesial surface of the mandibular canine.
(4) the distal surface of the mandibular canine.
(5) none of the above surfaces, since they are all the same size. Ans- 1. the mesial surface of the max canine
*When compared to the permanent maxillary canine, the crown
of the mandibular canine normally exhibits:
(1) an incisal edge which is thinner labiolingually.
(2) a cingulum which is more convex.
(3) a more prominent cusp, as viewed from the labial aspect.
(4) all of the above features.
(5) none of the above features. Ans- 1. an incisal edge which is thinner labiolingually
*Prior to attrition, the cusp tip of the permanent canines is:
(1) offset to the mesial on maxillary canines, and to the distal on mandibular canines.
(2) offset to the distal on maxillary canines, and to the mesial on mandibular canines. (3) offset to the mesial on mandibular canines, and over the root center on maxillary canines.
(4) offset to the distal on mandibular canines, and over the root center on maxillary canines.
(5) located over the root center on both maxillary and mandibular canines. Ans- 5. located over the root center on both max and man canines
When viewed from the incisal aspect, the permanent maxillary canine gives the appearance of being a stronger tooth than the maxillary central incisor. This strength is exhibited best by the canine's:
(1) greater mesiodistal dimension.
(2) more symmetrical form.
(3) greater labiolingual dimension.
(4) greater lingual convexity.
(5) greater labial concavity. Ans- 3. greater labiolingual dimension
When compared to the permanent maxillary central incisor, the permanent maxillary canine normally exhibits:
(1) a greater root length.
(2) a greater crown plus root length.
(3) both of the above features.
(4) neither of the above features. Ans- 3. both of the above
The cingulum is normally the least prominent on the crowns of permanent:
1. max centrals
2. max canines
3. mandibular incisors
4. mandibular canines
5. max laterals Ans- 3. mandibular incisors
The masticatory fxn of the permanent canines can best be described as: Ans- tearing
The permanent max right canine is universal tooth #: Ans- 6
*The pattern of attritional wear on the incisal of the permanent mandibular canine normally is evident in:
(1) a lengthening of the distoincisal slope.
(2) a mesial displacement of the cusp tip.
(3) both of the above changes.
(4) neither of the above changes. Ans- 3. both
On the crown of the permanent mandibular canine, the height of contour on the lingual surface is normally located in the same horizontal third as:
(1) the height of contour of the labial crown surface of the same tooth. (2) the height of contour of the mesial crown surface of the same tooth.
(3) the height of contour of the distal crown surface of the same tooth.
(4) all of the above heights of contour.
(5) none of the above heights of contour. Ans- 1. the height of contour of the labial crown surface of the same tooth
On the crown of the permanent maxillary canine, the structure which is located immediately to the mesial of the lingual ridge is correctly termed the: Ans- mesiolingual fossa
*The crown of a newly erupted permanent maxillary canine
normally exhibits:
(1) imbrication lines.
(2) mamelons.
(3) an incisal edge.
(4) all of the above features.
(5) none of the above features. Ans- 1. imbrication lines
*When viewed from the labial aspect, the mesial outline of
the crown is normally longer than the distal outline on:
(1) the permanent maxillary canine.
(2) the permanent mandibular canine.
(3) both permanent canines.
(4) neither permanent canine. Ans- 3. both
Universal number for the permanent max right canine? Ans- #6
Of the following anomalies, the permanent max canine is most likely to exhibit:
1. peg crown
2. lingual tubercle
3. root bifurcation
4. agenesis
5. dwarfed root Ans- 2. lingual tubercle
*At age 11, the third tooth from the midline in the mandibular arch, is normally:
(1) a deciduous canine.
(2) a permanent canine which is only partially erupted.
(3) a permanent canine which is fully erupted, but with incomplete root formation.
(4) a permanent canine which is fully erupted with complete root formation.
(5) not erupted. Ans- 3. a permanent canine which is fully erupted, but with incomplete root formation
The permanent anterior tooth which has the latest time of
root completion is normally the: Ans- max canine
The permanent mandibular canine normally erupts at (what age?) Ans- 9-10 years
*At age 13, permanent canines which have erupted include: Ans- all canines
On the crowns of permanent maxillary canines, the structure which is sometimes found separating the lingual fossa area and the cingulum is the: Ans- Linguogingival groove
*On the labial surface of the permanent maxillary canine,
normally the cervical line is:
(1) symmetrically convex toward the apex.
(2) asymmetrically convex toward the apex.
(3) symmetrically convex toward the incisal.
(4) asymmetrically convex toward the incisal.
(5) relatively straight. Ans- 1. symmetrically coves toward the apex
*Consider the total area of the proximal crown surfaces of
the permanent canines. In most cases, the largest is:
(1) the mesial surface of the maxillary canine.
(2) the distal surface of the maxillary canine.
(3) the mesial surface of the mandibular canine.
(4) the distal surface of the mandibular canine.
(5) none of the above surfaces, since they are all the same size. Ans- 1. the mesial surface of the max canine
*When compared to the permanent maxillary canine, the crown
of the mandibular canine normally exhibits:
(1) an incisal edge which is thinner labiolingually.
(2) a cingulum which is more convex.
(3) a more prominent cusp, as viewed from the labial aspect.
(4) all of the above features.
(5) none of the above features. Ans- 1. an incisal edge which is thinner labiolingually
*Prior to attrition, the cusp tip of the permanent canines is:
(1) offset to the mesial on maxillary canines, and to the distal on mandibular canines.
(2) offset to the distal on maxillary canines, and to the mesial on mandibular canines. (3) offset to the mesial on mandibular canines, and over the root center on maxillary canines.
(4) offset to the distal on mandibular canines, and over the root center on maxillary canines.
(5) located over the root center on both maxillary and mandibular canines. Ans- 5. located over the root center on both max and man canines
When viewed from the incisal aspect, the permanent maxillary canine gives the appearance of being a stronger tooth than the maxillary central incisor. This strength is exhibited best by the canine's:
(1) greater mesiodistal dimension.
(2) more symmetrical form.
(3) greater labiolingual dimension.
(4) greater lingual convexity.
(5) greater labial concavity. Ans- 3. greater labiolingual dimension
When compared to the permanent maxillary central incisor, the permanent maxillary canine normally exhibits:
(1) a greater root length.
(2) a greater crown plus root length.
(3) both of the above features.
(4) neither of the above features. Ans- 3. both of the above
The cingulum is normally the least prominent on the crowns of permanent:
1. max centrals
2. max canines
3. mandibular incisors
4. mandibular canines
5. max laterals Ans- 3. mandibular incisors
The masticatory fxn of the permanent canines can best be described as: Ans- tearing
The permanent max right canine is universal tooth #: Ans- 6
*The pattern of attritional wear on the incisal of the permanent mandibular canine normally is evident in:
(1) a lengthening of the distoincisal slope.
(2) a mesial displacement of the cusp tip.
(3) both of the above changes.
(4) neither of the above changes. Ans- 3. both
On the crown of the permanent mandibular canine, the height of contour on the lingual surface is normally located in the same horizontal third as:
(1) the height of contour of the labial crown surface of the same tooth. (2) the height of contour of the mesial crown surface of the same tooth.
(3) the height of contour of the distal crown surface of the same tooth.
(4) all of the above heights of contour.
(5) none of the above heights of contour. Ans- 1. the height of contour of the labial crown surface of the same tooth
On the crown of the permanent maxillary canine, the structure which is located immediately to the mesial of the lingual ridge is correctly termed the: Ans- mesiolingual fossa
*The crown of a newly erupted permanent maxillary canine
normally exhibits:
(1) imbrication lines.
(2) mamelons.
(3) an incisal edge.
(4) all of the above features.
(5) none of the above features. Ans- 1. imbrication lines
*When viewed from the labial aspect, the mesial outline of
the crown is normally longer than the distal outline on:
(1) the permanent maxillary canine.
(2) the permanent mandibular canine.
(3) both permanent canines.
(4) neither permanent canine. Ans- 3. both
Universal number for the permanent max right canine? Ans- #6
Of the following anomalies, the permanent max canine is most likely to exhibit:
1. peg crown
2. lingual tubercle
3. root bifurcation
4. agenesis
5. dwarfed root Ans- 2. lingual tubercle
*At age 11, the third tooth from the midline in the mandibular arch, is normally:
(1) a deciduous canine.
(2) a permanent canine which is only partially erupted.
(3) a permanent canine which is fully erupted, but with incomplete root formation.
(4) a permanent canine which is fully erupted with complete root formation.
(5) not erupted. Ans- 3. a permanent canine which is fully erupted, but with incomplete root formation
The permanent anterior tooth which has the latest time of
root completion is normally the: Ans- max canine
