D'28 Handout #5 - Pulp Morphology of the Permanent Dentition

What is the root morphology of the Maxillary Central Incisor?

One conical root with a blunt apex, wider mesiodistally than facio-lingually, rounded triangular outline in cervical cross-section.

What is unique about the canal system of the Maxillary Central Incisor?

Always has one canal, usually with two pulp horns and may have a third.

Describe the root of the Maxillary Lateral Incisor.

One root with a pointed apex that deflects distally, and an ovoid cervical cross-section.

What is the difference in canal presence in Maxillary Lateral Incisor?

One canal almost 100% of the time, occasionally with two small pulp horns.

How does the Maxillary Canine root compare in length?

It is the longest root and longest tooth (root and crown combined) in the mouth.

What is a distinct characteristic of the Maxillary First Premolar roots?

Usually has two roots: one buccal and one lingual, with root bifurcation occurring at half the root length.

What percentage of the time does the Maxillary First Premolar have two canals?

90% of the time.

Describe the pulp morphology of the Maxillary First Molar.

Typically has four root canals and five pulp horns, with a complex anatomy.

What are the main characteristics of the Maxillary Second Molar roots?

Three roots that may be fused, with a rhomboidal pulp chamber shape.

What defines the root of the Mandibular Central Incisor?

Usually one straight and flat root, wider labiolingually than mesiodistally.

What is the cross-sectional shape of the Mandibular Lateral Incisor root?

Flat rectangle with rounded corners.

How often does the Mandibular Canine have one canal?

75% of the time.

What is significant about the Mandibular First Molar's root canal system?

Usually has three canals, with the mesial root typically containing two.

What is a characteristic of the Mandibular Second Molar roots?

Tends to have more fused roots than the first molar.