Oral examination of 73 patients with OI is performed and OI type I, III, and IV are represented by 75.3%, 8.2%, and 16.4%, respectively. Patients are diagnosed as having dentinogenesis imperfecta (DI) if they have clinical and radiological signs of DI. In the data analysis, mild OI (type I) is compared to moderate-severe OI (type III and IV).
One fourth of patients with OI have DI, and the vast majority of them have moderate-severe OI. Whereas discoloration of teeth, cervical constriction and pulp obliteration are frequent findings in patients with moderate-severe OI, pulp stones and taurodontism are found in patients with mild OI only. More information about the characteristics of OI in the Danish adult population you can find here.