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