The images and videos of "The Root Canal Anatomy Project" blog were developed at the Laboratory of Endodontics of Ribeirao Preto Dental School - University of Sao Paulo - and may be freely used for attributed noncommercial educational purposes by educators, scholars, student and clinicians. It means that all material used should include proper attribution and citation ( In such cases, this information should be linked to the image in a manner compatible with such instructional objectives. Enjoy!

November 29, 2015

Peg-Shaped Lateral Incisors (Conoid)

Peg-Shaped Lateral Incisors

The most common anomaly in tooth shape in the anterior of the secondary dentition is the peg-shaped (or cone-shaped) lateral incisor, occurring in 1-2% of the population. The tooth is generally conical in shape, broadest cervically, and tapers toward the incisal to a blunt point. Several studies of the identical twins seem to indicate that missing and peg-shaped lateral incisor teeth may be varied expressions of the same generic trait. A most unusual occurrence is that of peg-shaped maxillary central incisor. Peg-shaped teeth develop from one facial lobe (instead of the three facial lobes normally present on anterior teeth).

Woelfel & Scheid. Dental Anatomy: Its Relevance to Dentistry. 6th Ed. 331

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