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