[5] Maxillary and Mandibular Incisors Part 1

Cut

Incisors function together to _____ food

Incisors

Which teeth has the following functions:

• Enable articulation of speech

  • Such as for pronouncing the letters V and F

• Support the lip and maintain a good appearance

  • Today’s beauty standards measure the appearance of the front teeth

• Guide the mandible posteriorly during occlusion

Trapezoid

• The general shape of the labial/lingual of the incisor is ______ (or rectangle)

  • Provides adequate space for periodontal support

Incisal

The longest uneven side of the incisor is towards the _____

Triangle

• The general shape of the mesial/distal of an incisor is a ______

• The base is towards the cervical

  • The wide base at the cervical provides strength to the tooth

  • The tapering shape towards the incisal allows effective penetration and cutting of food.

Cingulum

For incisors

Mesial and distal marginal ridges converge toward the _______

Lingual Fossa

a shallow concavity incisal to the cingulum

Which incisor has their mesial surfaces in contact with each other in person with complete dentition?

Central Incisor

Mamelons are normally found…

On the incisal ridge of anterior teeth

Which of the following is TRUE of incisors?

The labial and lingual crest of curvatures are on the cervical third

Which MAXILLARY incisor has a greater chance of morphologic variation?

Laterals

Comparing all incisors, which incisors has the greatest mesiodistal diameter?

Maxillary Centrals

Which tooth is the most symmetrical incisor?

Mandibular Centrals

The mesiodistal diameter of the crown is larger than the labiolingual dimension

Maxillary Central and Maxillary Laterals

The incisal ridge exhibits a distolingual twist

Mandibular Laterals

The root is very narrow mesiodistally with mesial and distal root depressions

Mandibular Laterals

The Incisal ridge is positioned more to the lingual of the root axis line

Mandibular Central and Mandibular Lateral

The tooth has the narrowest incisor crown mesiodistally

Mandibular Centrals