History. For many years all the lesions designated by the terms above were classified simply as cementomas (Thoma 1970). However, periapical cemental dysplasia is definitely a reactive process, whereas cementoma is thought to be a true neoplasm, and cementifying fibroma and gigantiform cementoma are probably also tumorlike lesions. This led the WHO, in 1971, to establish the following categories for lesions of this group (cf. Pindborg and Kramer 1971):
periapical cemental dysplasia,
SynonymsBenign cementoblastoma periapical cemental dysplasia cementifying fibroma gigantiform cementoma.
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© Springer-Verlag Berlin Heidelberg 1986