DHYG 110 Tooth ID

Maxillary central incisor

-mesial incisal angle is the sharpest of any of the incisors

-mesial is sharper than the distal

-cingulum shifts to the distal from incisal view

-greatest curvature of CEJ of any tooth in the dentition on mesial aspect

-imprecation lines on the cervical 1/3 of the facial aspect

-triangular in shape from proximal view

Maxillary lateral incisor

-mesial and distal incisal angles, both are more rounded than central, especially distal

-crown all over is smaller than central

-cingulum is centered from incisal view

-CEJ curvature more on mesial than distal

-most variable tooth in dentition besides third molars

Maxillary canine

-only tooth that has one cusp

-very prominent facial ridge in the middle developmental lobe

-cingulum is centered

-only tooth that has the lingual ridge right in the middle of the lingual aspect

-significant concavity on distal root

-side with the greater curvature is trying to touch or meet the premolar that sits next to it

-straighter side it trying to touch the lateral incisor that is sitting next to it

Mandibular central incisor (will not me on tooth ID)

-mesial incisal angle is sharper than distal incisal angle

-cingulum is centered

-most symmetrical tooth in dentition

-prominent mesial/distal root concavities

Mandibular lateral incisor

-distal incisal angle a little bit closer towards the apex

-appears to be twisted distally from the incisal view

-cingulum shifted significantly distally

-significant mesial and distal root concavities

Mandibular canine

-one cusp

-central lingual ridge

-two fossae on lingual

-cingulum shifted to distal

-root apex shifts to mesial

-contact area down to the CEJ on the mesial aspect is straight

Maxillary 1st premolar

-2 roots

-2 cusps

-mesial marginal groove

-lingual cusp swings to the mesial aspect

-deep developmental groove longitudinal depression that runs from just under the contact area over the CEJ all the way down to the furcation

Maxillary 2nd premolar

-1 root

-2 cusps close in height

-no mesial marginal groove

-occlusal view, really wrinkled, looks like a smiley face, lots of supplemental grooves

Mandibular 1st premolar

-1 root

-2 cusps

-sneak eyes

-nonfunctional lingual cusp

-mesial marginal groove

-resembles an ice-cream cone when looking at it from the proximal view

Mandibular 2nd premolar (will have 3 cusps on tooth id)

-1 root

-3 cusps

-no mesial marginal groove

-mesioingual cusp higher than distolingual cusp

Maxillary 1st molar (tooth id will be 5 cusps with cusp of Carabelli)

-3 roots

-4 cusps (5 with cusp of Carabelli)

-buccal groove is pretty close to being in the middle, in line with the buccal furcation

-mesial root is widest from the buccal toward the lingual

-shifts mesial furcation 2/3 distance toward the lingual

-only maxillary molars have an oblique ridge

-has the biggest oblique ridge

-cusp of Carabelli only sits on the mesial side

Maxillary 2nd molar (will be heart-shaped on tooth id)

-3 roots

-4 cusps

-2 buccal roots

-1 lingual root

-buccal groove is shifted more toward the distal

-mesial buccal cusp is quite larger than distal buccal cusp

-mesial root is much wider going from the buccal to the lingual

-shifts mesial furcation 2/3 distance toward the lingual

-distal view, you can see mesial root on the side of the distal root

-has oblique ridge

-can be rhomboidal or heart-shaped

Mandibular 1st molar

-2 roots

-5 functioning cusps

-Y shaped groove pattern

-buccal aspect you can see 3 cusps

-2 buccal grooves (only molar to have two buccal grooves)

-mesial view, all cusps are tipped to the lingual aspect

Mandibular 2nd molar

-2 roots

-4 cusps equal in size and height

- + shaped occlusal pattern

-buccal groove is centered

-mesial root is wider than distal groove

-mesial view, crowns are tilted toward the lingual aspect