Traits to Distinguish Max. Central vs. Lateral

Which statement correctly describes the crown shapes of the maxillary central vs. lateral incisors?

Centrals are more square; laterals are more oblong cervicoincisally

When comparing the mesioincisal and distoincisal angles of maxillary central vs. lateral incisors, which is true?

Both have mesioincisal angles ~90°, but laterals have more rounded angles overall

How do the incisal edges of maxillary central and lateral incisors slope? (Facial view)

Incisal edges slope cervically toward the distal; more pronounced in laterals

What is the proportion between crown and root length in maxillary centrals vs. laterals? (facial)

Centrals = crowns and roots closer to same length

laterals = roots proportionately longer

When aligned horizontally, how does the position of the cingulum differ between centrals and laterals of maxillary incisors? (incisal view)

Central incisor cingulum is distal; lateral incisor cingulum is centered

Which marginal ridge is longer on both maxillary central and lateral incisors, and why? (lingual view)

Mesial marginal ridge; due to distal placement of the cingulum (centrals) or distal slope of incisal edge (laterals)

Which maxillary incisor shows a distolingual twist of the incisal edge? (incisal and mesial)

Maxillary central incisor

How do the mesiodistal vs. faciolingual dimensions compare between maxillary central and lateral incisors? (incisal view)

Centrals: mesiodistal much wider than faciolingual (rectangular); laterals: dimensions more equal (square-like)