Maxillary Arch Traits & Maxillary 3rd molars Flashcards
What feature does the maxillary molars have that the mandibular molars do not from the occlusal view?
Oblique Ridge
Which dimension is larger for maxillary molars, buccal-lingual or mesial-distal?
Buccal to Lingual
Where is the oblique ridge located?
From the ML cusp to DB cusp
What is the purpose of the oblique ridge?
To provide strength and support function.
What is the correct annotation of the maxillary 3rd molar?
1 and 16
When does the maxillary 3rd molar typically erupt?
17-21
When is the root completed on the maxillary 3rd molar?
18-25
What cusp is typically missing on the maxillary 3rd molar?
Distal lingual cusp.
From the buccal aspect what does the crown look like?
Rounded
Compared to the other maxillary molars how would you describe the root of the 3rd molars?
Much shorter than other maxillary molars.
From the lingual view how would you describe the ML and DL cusps?
The ML cusp dominates and the DL cusp is small or missing.
From the occlusal aspect how would you describe the shape of the 3rd maxillary molar?
Heart shaped.
