2nd ESP Quarterly Scientific Seminar 2024

The maxillary lateral incisor is known for its unique anatomical characteristics, particularly in its root canal system, which can significantly influence endodontic treatment outcomes. This presentation explores the anatomy and canal curvature of maxillary lateral incisors, emphasizing the importance of understanding these factors for successful endodontic therapy.

The maxillary lateral incisor often presents with a single canal; however, variations such as multiple canals and unusual curvatures are common. These anatomical complexities can pose challenges during endodontic procedures, including canal negotiation, cleaning, and obturation. Detailed analysis of canal morphology, including curvature degree and orientation, is essential for eMective treatment planning and execution.

Through a review of current literature and clinical case studies, we will discuss techniques for assessing canal curvature using advanced imaging modalities and tools, as well as strategies for navigating these anatomical variations. By enhancing our understanding of the anatomy and canal curvature of maxillary lateral incisors, we can improve our approach to endodontic treatment, thus leading to higher success rates and better patient outcomes.

Endodontic treatment of the maxillary molars has one the highest treatment failures, due to the root canal complexities, especially on the mesiobuccal root. The presence of a second mesiobuccal canal (MB2) is often difficult to locate which leads to missed canal thereby resulting in failed root canal treatment. In a previous study, a total of 42 full-size Cone-Beam Computed Tomography (CBCT) images (iRYS CBCT scan software from MyRay) were examined to determine the distance of MB2 to point T (MB2-T) of the maxillary first and second molar. The study found out that the mean distance of MB2-T of the first molars and second molars were 0.56 and 0.54, respectively. This could aid in establishing some guidelines in locating the MB2 orifice to avoid potential endodontic failures.