The enamel is penetrated in the center of the lingual surface at perpendicular angel with a round bur (No. The shape, size and coronal extension is determined from a diagnostic radiograph. In cross section, the canal is ovoid mesiodistally in cervical third, ovoid to almost round in middle third and round at the apical third. Root Canal is broad labiopalatally, conical in shape and located at the center. The maxillary central incisor has one root and one root canal. Root canal and pulp chamber are continuous with no distinction.
Pulp follows the contour of the crown and has 3 pulp horns due to developmental mamelons in young tooth. Pulp Chamber: Located in the center of the crown and is at equal distance from the neighboring dentinal walls. Access opening in Maxillary Central Incisor Pulp horns is a bump in the roof under the cusp or under developmental lobe.Ĭanal Orifices are openings in the floor of pulp chamber which leads to root canals. Roof of pulp chamber consists of dentin covering occlusally or incisally In multi rooted teeth, the pulp chamber is single with multiple root canals. In single rooted teeth, pulp chamber gradually merge into the root canal. The coronal portion is called pulp chamber and the radicular portion is called root canal. Present in the tooth, surrounded by dentin except at the apical foramina or the tip of the root.
Before we begin with the details of access opening of Maxillary Central Incisor, lets see a few terminologies.
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