Distinct Traits
What tooth is the Cusp of Carabelli associated with?
Maxillary first molar
Which maxillary molar is composed of 5 lobes?
Maxillary 1st molar
Which cusp on the max 2nd molars is usually absent?
DL cusp
What is the international numbers for the maxillary 1st molars?
UR - #16
UL - #26
Which root is the longest and strongest on a max molar?
Lingual/Palatal root
What tooth is most variable in form & often poorly developed?
Max 3rd molars
What are the 2 shapes of max 2nd molars from occlusal view?
1. Rhomboidal
2. Heart-shaped
What is the root to crown ratio for max 1st molars?
2 (root):1 (crown)
What is concrescence?
Union of the roots of 2 teeth by cementum ONLY
True or false? Third molars are not trifurcated because the roots are fused together.
False. Third molars are trifurcated and roots may be partially or fully fused together.
Max third molars
Where are furcations located on maxillary molars?
Junction of cervical and middle third of the roots
True or false? Furcation notches are more narrow in first molar compared to the second molar.
False. Furcation notches are more narrow in second molar compared to the first molar.
What is the most prominent anatomical occlusal feature of maxillary molars?
Oblique Ridge
True or false? Maxillary second molars are Nonsuccedaneous teeth.
True
Which maxillary molar has a higher chance of fusion of the roots?
Max 2nd molar
True or false? If present on max 1st molar, a vertical depression on the palatal root surface is more pronounced on the cervical third
True
Which max molar has a less prominent oblique ridge?
Max 2nd molar
Which tooth has a 5mm distance between the distal furcation & CEJ?
Max 1st molar
True or false? Max second molar is shorter occlusocervically & narrower mesiodistally than a first molar.
True.
What helps to distinguish the left maxillary molars from the right?
ML cusp is longer and larger & not as sharp as DL cusp
Where is the mesial contact located on max 1st molars?
Junction of occlusal & middle 3rds
Which tooth usually has a lingual pit at the end of DL groove?
Max 2nd molars
What are the concavity depths on the max 1st molar?
0.1-0.75mm
Which max molar is most likely to have a MB2 Root?
Max second molar