Table 4. Gingival thickness (GT) of mandibular anterior teeth according to Angle classification and amount of crowding.

Values are presented as mean ± standard deviation.

Two-way (factorial) ANOVAs were performed and interaction was not statistically significant.

^{A, B}Statistically significant difference between amount of crowding (p < 0.05).

^{a, b}Statistically significant difference between Angle classification (p < 0.05).