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Questions
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Answers
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The developmental
depression in root of canine |
Secures anchorage;
Increases the surface area for anchorage ; Prevents rotation / displacement |
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In the permanent maxillary
canine, mesial and distal lingual fossae are |
Separated by lingual ridge
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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 |
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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 |
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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 |
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The lingual cusp of the
premolars develop from the |
Lingual lobe
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The predominant function of
first premolar of either arch is |
Tearing. The second
premolar’s predominant function is to grind |
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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. |
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The permanent maxillary
first premolar have |
Two cusp and 2 pulp canals
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From the buccal aspect of
the permanent maxillary first premolar, the tip of the buccal cusp is distal to line bisecting the |
Buccal surface
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Prof. Rooban Thavarajah
Oral and Maxillofacial Pathologist
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