PERMANENT MAXILLARY ANTRIOR TEETH MAXILLARY INCISORS Most prominent

PERMANENT MAXILLARY ANTRIOR TEETH

MAXILLARY INCISORS • • • Most prominent Widest MD Straight incisal edge Straight M Slightly curved D

Labial view • • • Convex at cervical portion of crown Mamelons – visible when fresh Development lines divide into 3 parts D rounded at contact Root – cone, blunt apex

Lingual view • Lingual fossa, bordered by M and D marginal and incisal ridges • prominent cingulum • Crow & root taper L • L portion of the root – narrower than F

Mesial view • triangular outline • incisal ridge of the crown is aligned on the long axis of the tooth & the root apex • The greatest cervical curvature in the mouth • Root – cone shaped, blunt

Distal view • Little difference with M • Less cervical curvature

Incisal view • crown is roughly triangular in outline • the incisal edge is nearly a straight line

Maxillary Lateral Incisor • • resembles the central incisor, narrower MD Smaller All futures more prominent

Labial view • Distal incisal angle is more rounded • Cervical curvature is more rounded • Crown more convex (more rounded)

Distal / Mesial view • line through the long axis of the tooth bisects the crown • Root appears longer • D cervical curvature bigger than M

Incisal view • resemble either the central or the canine to varying degrees (with large cingulum) • more rounded than the mesial incisal angle

Root • tip of the root may incline distally • Straight, thick, cylindrically shaped

Pulp cavity • Varies in size • Smaller with age • One root canal with three (or one or two) pulp horns in the center

Maxillary Canine • • longest and most stable of teeth in the mouth Self cleaning qualities cornerstones of the dental arch (canine eminence) only teeth in the dentition with a single cusp

• Resemble an incisor – four developmental lobes • Middle lobe – a single cusp • L lobe larger than incisors • Cingulum has the greatest development of all anterior

Labial • Crown narrower MD than incisors • Cervicoincisal length is much large • M crown is straighter, convexity at contact • D crown more rounded • Developmental lines – 2 shallow depressions • Well developed middle lobe • Root slender than crown, blunt apex, turns sharply distal

Lingual view • Distinct M and D marginal ridges • Well-devloped cingulum, and the lingual ridge runing from cusp tip to cingulum • L ridge extends from the cusp tip to the cingulum, dividing the lingual surface into mesial and distal fossae • Root is narrow than F, cross section triangular

Mesial view • • • Bulky cingulum region L line more convex triangular outline Root broad LF & long M surface – convex, cervical can be flat • Developmental depression appears divides single root in two

Distal view • Cervical – less curvature • D marginal ridge – more developed than M • D surface – more concavity at contact • More pronounced developmental root depression

Incisal view • thicker LF than MD • tip of the cusp is displaced labially (F) • Larger LF from any anterior teeth

Root • Longest • Tapers from F toward L • Apex points D

Pulp cavity • Large pulp chamber and single canal • One single pulp horn which extends toward the tip of the cusp