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