Research Article

Prevalence of Three-Rooted Deciduous Mandibular Molars in the Children of Northwestern Iran

Table 2

Comparison of the frequency distribution of the type of three-rooted deciduous teeth in terms of side of the mandible.

Side of the mandibleType of the molarTotal
DE

Side of the mandibleLeftN#11213
Percent68.8%16.7%46.4%
RightN#4913
Percent25%75%46.4%
BothN#112
Percent6.2%8.3%7.2%

χ2(2) = 7.74%,