Figure 4.

Panoramic radiograph illustrating the different fields in the maxilla and mandible with different innervation, surrounded by different ectomesenchyme. In the maxilla: red colour demonstrates the bilateral frontonasal field, innervated by the nervus nasopalatinus. Green colour demonstrates the bilateral maxillary field, innervated by the nervus maxillaris. Blue colour demonstrates the bilateral palatal fields, innervated by the nervus palatinus. In the mandible, similar fields are illustrated, innervated by different nerve branches from the nervus alveolaris inferior [6]. This figure is reprinted with permission from Orthodontic Waves 2012;71:1-16 [7].