“…Clinically, our observations may be useful in the recognition of DICER1 ‐carriers. Bulbous crowns (with thin roots) can be diagnostically useful in Schimke immunoosseous dysplasia, a rare disorder of short stature, nephropathy and T‐cell deficiency (Gendronneau, Kerouredan, Taque, Sixou, & Bonnaure‐Mallet, ; Morimoto et al, ). In the general population, the frequency of periodontal disease is approximately 8.5% (age 20–64 years; US National Health and Nutrition Examination Survey, 1999–2004), taurodontism is 2.5% (Jaspers & Witkop Jr., ) and that of bulbousness is unknown.…”