Tooth Morphology

Questions	Answers
The characteristic developmental depression of permanent maxillary first premolar is in the	Mesial surface of crown & root
The permanent maxillary first premolar root is	Bifurcated for half its length
Occlusal aspect of permanent maxillary first premolar is	Pentagonal
The number of cusp ridge, developmental groove, triangular fossa and marginal ridge in permanent maxillary first premolar is	4, 4, 2, 2
In the permanent maxillary dentition, as compared to the second premolar, the size of first premolar is	Larger than second premolar. But in mandible, second premolar is the largest
In the permanent mandibular premolars the mesial cuspal ridge is	Shorter than distal cusp ridge
The characteristic developmental depression of permanent mandibular first premolar is	Mesiolingual developmental groove
The number of cusps in permanent mandibular first premolar is	Two or three. The Y form has 3 cusps while the U and H form have 2 cusps
In the permanent maxillary molars the roots that is largest is	Palatal. The distobuccal roots are the smallest
The teeth that are commonly referred as the cornerstone of the arches is	Permanent first molar. The corner stone mouth is the permanent canine

Tooth Morphology

Questions

1. The characteristic developmental depression of permanent maxillary first premolar is in the
2. The permanent maxillary first premolar root is
3. Occlusal aspect of permanent maxillary first premolar is
4. The number of cusp ridge, developmental groove, triangular fossa and marginal ridge in permanent maxillary first premolar is
5. In the permanent maxillary dentition, as compared to the second premolar, the size of first premolar is
6. In the permanent mandibular premolars the mesial cuspal ridge is
7. The characteristic developmental depression of permanent mandibular first premolar is
8. The number of cusps in permanent mandibular first premolar is
9. In the permanent maxillary molars the roots that is largest is
10. The teeth that are commonly referred as the cornerstone of the arches is

Tooth Morphology

Questions	Answers
The developmental depression in root of canine	Secures anchorage; Increases the surface area for anchorage ; Prevents rotation / displacement
In the permanent maxillary canine, mesial and distal lingual fossae are	Separated by lingual ridge
When the permanent maxillary canine is correctly posed so that long axes of the tooth is in line of vision, tip of the cusp is	Labial to center of crown labiolingually. the tip of the canine is mesial to the center mesiodistally
The crown of a permanent mandibular canine appear longer due to	Narrow crown mesiodistally; Height of contact area is above cervix; The crown could be longer cervicoincisally
The line joining the cusp tip of the distal margin contact extension are a straight line that is	Mesiodistally in maxillary & lingually in mandibular canine
The lingual cusp of the premolars develop from the	Lingual lobe
The predominant function of first premolar of either arch is	Tearing. The second premolar’s predominant function is to grind
In a permanent maxillary first premolar the mesial slope of the buccal slope is	Longer than distal slope. The mesial slope of the buccal cusp ridge of maxillary 2nd premolar is shorter than distal slope.
The permanent maxillary first premolar have	Two cusp and 2 pulp canals
From the buccal aspect of the permanent maxillary first premolar, the tip of the buccal cusp is distal to line bisecting the	Buccal surface

Tooth Morphology

Questions

1. The developmental depression in root of canine serves to 
2. In the permanent maxillary canine, mesial and distal lingual fossae are
3. When the permanent maxillary canine is correctly posed so that long axes of the tooth is in line of vision, tip of the cusp is
4. The crown of a permanent mandibular canine appear longer due to
5. The line joining the cusp tip of the distal margin contact extension are a straight line that is
6. The lingual cusp of the premolars develop from the
7. The predominant function of first premolar of either arch is
8. In a permanent maxillary first premolar the mesial slope of the buccal slope is
9. The permanent maxillary first premolar have
10. From the buccal aspect of the permanent maxillary first premolar, the tip of the buccal cusp is distal to line bisecting the

Tooth Morphology

Questions	Answers
While the labiolingual root axes of permanent mandibular incisors remains ________ to alveolar process, the ___________ are not in straight line.	Parallel; incisal edges
The “corners of the mouth” are the	Canine
The cusp of the canine develops from the	Middle lobe
The longest human teeth are the	Maxillary canine
Canines are considered to be the most stable teeth of all the permanent teeth	Due to the increased labiolingual thickness of crown and root; Anchorage in the alveolar process; Self cleansing morphology
The bony ridge above the root of the canine in the maxilla is the	Canine eminence
The mesial and distal half of canine closely resembles	Incisors and premolar respectively
The teeth that has well developed cingulum is the	Permanent maxillary canine
In permanent dentition the teeth that has greatest labiolingual/ labiopalatal thickness is the	Permanent mandibular canine
The developmental depression in root of canine, if found is on the	Proximal surface

Tooth Morphology

Questions

1. While the labiolingual root axes of permanent mandibular incisors remains ________ to alveolar process, the ___________ are not in straight line.
2. The “corners of the mouth” are the
3. The cusp of the canine develops from the
4. The longest human teeth are the
5. Canines are considered to be the most stable teeth of all the permanent teeth, because _______
6. The bony ridge above the root of the canine in the maxilla is the ________
7. The mesial and distal half of canine closely resembles 
8. The teeth that has well developed cingulum is the _____
9. In permanent dentition the teeth that has greatest labiolingual/ labiopalatal thickness is the
10. The developmental depression in root of canine, if found is on the ______________

Tooth Morphology

Question	Answer
As compared with permanent maxillary central incisor, permanent lateral incisor has a	Well developed linguoincisal ridge& concave lingual fossa
Often in permanent maxillary lateral incisor, a deep developmental groove is seen at the	Distal aspect of cingulum
From the incisal aspect as compared to permanent maxillary central incisor, the permanent maxillary lateral incisor exhibit more	Convexity in labial and palatal surface
The smallest permanent mandibular anterior teeth is the	Central incisor. It is the smallest of all anterior in permanent dentition.
The permanent mandibular incisors labial surfaces are inclined	Lingually
The relationship of labiolingual diameter to mesiodistal diameter of permanent mandibular central incisor is that the labiolingual diameter is	Greater
In the permanent mandibular incisors the cingulum	Has no developmental grooves
In permanent dentition, fewest developmental lines and grooves are observed in	Mandibular incisors
The permanent teeth that has the incisal edge at right angles to the line bisecting crown labiolingually is	Mandibular central incisors
The crown of the permanent mandibular lateral incisor has a appearance of being twisted slightly on its root base because	To follow the curvature of arch