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  • Title: Dental findings in osteogenesis imperfecta: I. Occurrence and expression of type I dentinogenesis imperfecta.
    Author: Lukinmaa PL, Ranta H, Ranta K, Kaitila I.
    Journal: J Craniofac Genet Dev Biol; 1987; 7(2):115-25. PubMed ID: 3624417.
    Abstract:
    Sixty-eight patients with osteogenesis imperfecta (OI) classified according to Sillence were evaluated for dentinogenesis imperfecta (DI). Orthopantomograms of 51 of the 68 were examined. Type I DI was recognized in 22 patients from 16 families. DI was observed in 4/45 patients with type I OI, in one of two patients with type III, and in 13/16 patients with type IV OI. Four of the five patients with an unidentified type of OI had DI. The expression of type I DI was variable. Discoloration and pulpal obliteration were the major manifestations. Teeth from 14 patients from 12 families were studied histologically. Eight of the 14 patients were from six families who had clinical and/or radiographic evidence of DI. Irregularity of the dentin matrix and tubular pattern in the circumpulpal dentin and normal mantle dentin were observed. Interfamilial variability was greater than intrafamilial variability. The expression of DI was mild in one family with type I OI. There was no further relation between the type of OI and the severity of DI.
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