Microscopically, this lesion consists primarily of a well-delineated, roughly spherical mass of a haphazard conglomerate of mature hard dental tissues. Some examples may include better-ordered, tooth-like structures.1 Thus, the degree of morphodifferentiation varies from lesion to lesion, enclosed in the calcified/mineralized matrix. There is predominantly dentine of an irregular variety, cementum or cementum-like tissue in small amounts and there is an admixture of dentine with round or ovoid spaces containing pulp tissue, enamel epithelium and remnants of enamel matrix.4 Clear spaces and clefts that probably contain mature enamel lost in the process of decalcification are often seen. In some sections at the periphery of the mass, islands of pulp tissue in association with cords and buds of odontogenic epithelium can be found. Sixteen percent of complex odontomas contain isolated areas of ghost cells, some of which may demonstrate melanin pigmentation. However, the usual high degree of differentiation of the dental tissues reflects the late stage of morphodifferentiation and maturation of odontogenesis. A thin, fibrous capsule and, in some cases, a cyst wall is seen surrounding the lesion.5