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Figure 3. Transverse Transaxial T1 weighted spin echo image. The teeth are shown in their relationship to the dental arch in cross-section from superior (maxilla) to inferior (mandible). The crowns of the unerupted upper wisdom teeth (G) are seen at the most posterior aspect of the dentoalveolar process with the small black circles of the apices of the second molars just visible anterior to them. The root apices of these and other erupted teeth in the dental arch are seen as black circles, and the pulp chamber (F) can be seen centrally as a white dot within a few of them. The ID nerve (N) enters theinferior dental canal of the mandible via the mandibular foramen. Immediately anterior and medial to this is the prominent extension of bone known as the lingula, to which the sphenomandibular ligament is attached. The crowns of the upper teeth are well shown with much larger central high signal (white) pulp chambers (F).
