Permanent Molar Teeth - Maxillary Flashcards
Are the molar suscidaneous?
No, they do not replace any premolars from primary dentition
How many cusps do the permanent maxillary molars have?
4
2 buccal
2 palatal
How many roots do the permanent maxillary molars have?
3 roots
How many roots are buccal and how many palatal in permanent maxillary molars?
2 buccal
1 palatal
How many roots do mandibular molars have?
2
1 mesial and 1 distal
Do lower 8s sometimes show fusion of roots?
yes, can appear as 1 root
What is the orientation of cusps in mandibular molars?
quadrilateral
mesial, buccal, distal, lingual
What erupts first, mandibular or maxillary 6s?
mandibular first
What age do the maxillary 6s erupt?
6 years
What tooth is the largest tooth in the maxillary arch?
6s
What cusp is the largest in the maxillary 6s?
the lingual mesial cusp
What side of the upper 6 is this?
Buccal
2 roots on buccal surface
Name what each wall is and the name of the extra cusp
Name what each wall is and the name of the extra cusp
What cusps are shown on the upper 6 here? (1 and 2)
What cusps are shown on the upper 6 here? (5,3,4)
What side is the cusp of carabelli on the upper 6?
Mesio-palatal
What cusp is longer and shaper on the upper 6?
The mesio-buccal
Compared to the distal
What cusp is really round on the upper 6?
distal
Do maxillary or mandibular teeth only have oblique ridges?
maxillary molars only
What structure is this in the upper 6?
Oblique ridge
What does 6 and 7 show on the upper 6?
6 and 7 show the medial and distal triangular fossa
at the distal and mesial marginal ridges
When do the 7s erupt?
7-8
Is the 6,7 or 8 shown here?
The 7
the roots stay within the crown margin compared to the 6
