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Questions and Answers
What distinguishes the maxillary first premolar due to a well-defined developmental groove in the enamel?
What distinguishes the maxillary first premolar due to a well-defined developmental groove in the enamel?
- Mesial marginal groove (correct)
- Lingual cusp length
- Buccal cusp tip alignment
- Distal developmental depression
Where does the mesial developmental depression (MDD) lie in relation to the mesial contact area?
Where does the mesial developmental depression (MDD) lie in relation to the mesial contact area?
- At the lingual cusp
- At the occlusal third
- At the distal contact area
- Immediately cervical (correct)
Where is the crest of curvature usually located when viewed from the mesial aspect?
Where is the crest of curvature usually located when viewed from the mesial aspect?
- Buccally at the junction of cervical and middle thirds (correct)
- Around the root bifurcation
- Lingually at the occlusal third
- At the tip of the lingual cusp
What is the characteristic feature of the lingual cusp in relation to the buccal cusp in the maxillary first premolar?
What is the characteristic feature of the lingual cusp in relation to the buccal cusp in the maxillary first premolar?
Which part of the root has a measurement that is less than the buccolingual measurement at its cervical portion?
Which part of the root has a measurement that is less than the buccolingual measurement at its cervical portion?
What lies beyond the mesial contact area in the maxillary first premolar?
What lies beyond the mesial contact area in the maxillary first premolar?
Where are both Buccal and lingual cusp tips aligned with in relation to Buccal and lingual roots?
Where are both Buccal and lingual cusp tips aligned with in relation to Buccal and lingual roots?
Where does the mesial marginal ridge intersect according to its location?
Where does the mesial marginal ridge intersect according to its location?
What is another name for mesiolingual developmental groove mentioned in the text?
What is another name for mesiolingual developmental groove mentioned in the text?
What is a distinguishing feature of the maxillary first premolar which extends from the mesial contact area to a deep depression between roots?
What is a distinguishing feature of the maxillary first premolar which extends from the mesial contact area to a deep depression between roots?
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