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Questions and Answers
What is unique about the occlusal surface of the primary maxillary first molar?
What is unique about the occlusal surface of the primary maxillary first molar?
- The distolingual cusp is the largest and sharpest
- The mesiolingual cusp is poorly defined and small
- It consists of prominent cusps giving the tooth a square look (correct)
- It has a smooth buccal surface with well-defined developmental grooves
What can be said about the roots of the primary maxillary first molar?
What can be said about the roots of the primary maxillary first molar?
- They are long, slender, and widely spread (correct)
- They consist of prominent cusps
- They are smooth with little evidence of developmental grooves
- They are short and conical
Which cusp of the primary maxillary first molar is poorly defined, small, and rounded?
Which cusp of the primary maxillary first molar is poorly defined, small, and rounded?
- Mesiolingual cusp
- Mesiobuccal cusp
- Distobuccal cusp
- Distolingual cusp (correct)
Study Notes
Primary Maxillary First Molar
- The occlusal surface of the primary maxillary first molar is unique in that it has a distinctive "Y" shape.
- The roots of the primary maxillary first molar are stout, widely separated, and curved distally.
- The distobuccal cusp of the primary maxillary first molar is poorly defined, small, and rounded.
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Test your knowledge about the unique characteristics of primary maxillary first molars. Learn about their eruption time, occlusal surface features, and root structure.
