Figure 1.

Family pedigree and dental phenotype. (A) Pedigree of the Costa Rican family investigated. Affected family members are shaded. (B) The mixed dentition of the index case, IV:1, aged 5 years (arrow on pedigree) was characterised by generalised hypomineralised AI with some hypoplasia involving all teeth. There was post-eruptive enamel loss with retention of a thin band of enamel at the cervical margin (examples marked with ∗). Periodontal health was consistent with that expected for patient age in each of the affected individuals with nothing to suggest a co-segregating phenotype.