Taurodontism in children associated with trisomy 21 syndrome.

Taurodontism, the dental trait characterized by teeth with elongated pulp chambers and apical displacement of the bifurcation or trifurcation of roots, is reviewed in children with Trisomy 21 (Down) syndrome. Twenty-two patients were studied to determine the frequency of taurodontism. Eruption delay and congenitally lost teeth were also evaluated. While no taurodont teeth were found in control group in the same age group, the frequency percentage of taurodontism in our study was found as 66% (p < 0.01, Mann-Whitney test). Results indicate that taurodontism occurs with a greater than expected frequency in these patients. This increased frequency may be from a generalized amplified instability of development.