B&B tooth morph Flashcards
Anterior Tooth with greatest axial inclination?
Maxillary central incisor
Anterior tooth wider mesiodistally than facio-lingual
Max. central
Proximal view of all incisors is the shape of the crown?
triangular
Most widely varied form anterior tooth?
max laterals
Distinguishing characteristic of maxillary lateral incisor
distal lingual groove- prone to carries in lingual pit &complicates scaling.
Tooth has a distolingual pit & groove that may extend past CEJ
max. lat. incisor
Longest of all maxillary teeth
maxillary canine
Tooth with most near vertical long axis?
max canine
Where is the cusp tip of the maxillary canine?
offset to facial and mesial from center
Tooth has a prominent cingulum and longest root of permanent teeth
max. canine
longest maxillary posterior crown?
max. 1st premolar
The buccal cusp of the maxillary first premolar is displaced toward the _____ while the lingual cusp is shorter and offset toward the ____
The buccal cusp of the maxillary first premolar is displaced toward the distal while the lingual cusp is shorter and offset toward the mesial
The only premolar with bifurcated root
Maxillary 1st premolar
Tooth has a mesiolingual groove that complicates cleaning and restoration
maxillary first premolar
Premolar with buccal and lingual cusps nearly the same size
max 2nd premolar
Buccal cusp of maxillary 2nd premolar leans toward the…
mesial
Premolar with wider facolingual than mesiodistal
maxillary 2nd premolar
Root morphology of maxillary 2nd premolar
1 root 1 canal
Tooth is broader lingually than buccally
max first molar
The maxillary right 1st molar has a trapezoid shape with the obtuse angles being on the ____ cusps and acute on the ___
Obtuse: ML DB
Acute: MB DL
This molar often has to be preped with two separate restorations due to a large oblique rigde
maxillary 1st molar
Root morphology of maxillary 1st molar
3 roots. 3 or 4 canals (4th in mL root)
Mesolingual biggest and wide.
Palatal/lingual longest and flat
Distofacial: shortest smooth.
Which teeth are likely to have a triangular shaped pulp cross section
max 1st and 2nd
The maxillary 2nd molar has the longer _______ than maxillary 1st
root trunk
The tooth that is most commonly heart shaped is the
maxillary 3rd molars.
2nd molar can also have heart shape
If mamalons are not warn down, what can this indicate?
malocclusion
Tooth that is twisted toward distal
mandib lat incisor
tooth with longest crown in mouth
mandibular canine
The cusp tip of the mandibular canine is shifted _______while the lingual cusp is shifted _______
The cusp tip of the mandibular canine is shifted mesial while the lingual cusp is shifted distal
Tooth has a steep occlusal table and a distinctive mesiolingual developmental groove.
Mandibular 1st premolar
steep due to underdeveloped lingual cusp
Tooth has mesial marginal ridge that is more cervical than the distal marginal ridge
mandibular 1st premolar
Tooth that frequently has two separate mesial and distal pits that must be restored separately
mandibular 2st premolar
premolar with two lingual cusps and a U shaped central groove
mandibular 2nd premolar
Tooth with greatest mesial distal demention
mandibular 1st molar
only other teeth with wider MD than FL are: Max Cent&Lat
Tooth often has caries in a buccal pit
mandib. 1st molar
Teeth with wider mesio distal than facolingual
max central
max lateral
mandib 1st molar
The root apicies of the mandib. 1st molar lye below the _______
mylohyoid line
Root morphology of mandibular 1st molar
two roots, 2-3 canals
mesial often has 2 canals
mandib roots lingually inclined
Most symetrical anterior?
Most symetrical molar?
mandib. central incisor
mandib. 2nd molar
Tooth has plus shaped central grooves
mandib 2nd molar.
Similar features of mandib 1st molar.
Root apex below mylohyoid line
2 roots 3 canals
roots inclined lingually
