incisors

Maxillary Central incisor-facial

most prominent tooth in mouth. nearly straight incisal edge gracefully curved cervical line. mesial straight outline; the distal is more rounded. Mamelons are present on freshly erupted, unworn central incisors.

Maxiallary Central incisor-lingual

presents a distinctive lingual fossa that is bordered by mesial and distal marginal ridges, the incisal edge, and the prominent cingulum at the gingival.

Maxillary Central incisor-proximal

Mesial and distal aspects present a distinctive triangular outline. This is true for all of the incisors. The incisal ridge of the crown is aligned on the long axis of the tooth along with the apex of the tooth.

Maxillary Central incisor-incisal

The crown is roughly triangular in outline; the incisal edge is nearly a straight line, though slightly crescent shaped

Maxillary Central incisor-contact points

The mesial contact point is just about at the incisal, owing to the very sharp mesial incisal angle. The distal contact point is located at the junction of the incisal third and the middle third.

Maxillary Central incisor-right and left

Viewed from the labial, the distal incisal angle is more rounded that the mesial. In many specimens, a cross-section mid-root reveals a right triangle outline. The hypotenuse is toward the mesial.

Maxillary lateral incisor

The maxillary lateral incisor resembles the central incisor, but is narrower mesio-distally. The mesial outline resembles the adjacent central incisor; the distal outline--and particularly the distal incisal angle is more rounded than the mesial incisal angle (which resembles that of the adjacent central incisor. The distal incisal angle resembling the mesial of the adjacent canine.

Right Maxillary central incisor

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Right Maxillary lateral incisor

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Left Maxillary central incisor

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Left Maxillary lateral incisor

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Right Mandibular central incisor

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Right Mandibular lateral incisor

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Left Mandibular central incisor

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Left Mandibular lateral incisor

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Which Geometric shape do the incisors form from a facial view?

Trapezoid

Which Geometric shape do the incisors form from a proximal view?

Triangle

Only contacts one other tooth and is the smallest in the mouth?

Mandibular central incisor

Maxillary central incisor facial view

Mesial line angle is longer than distal. Mesial incisal is more acute than the distal line angle.

Lingual fossa and cingulum

The crowns exhibit a concavity wich covers roughly the incisal half of the lingual surface.

Faint curvd lines which roughly parallel the CEJ in the cervial third of the surface

Imbrication lines