Fig. 7.

Measurement of growth rates of opposed incisors after clipping. a, b Mice incisors were clipped on the upper right side and a marker notch made on both lower incisors just above the gingiva. The notch movements were measured 2 days after clipping. Asterisk indicates clipped incisor. c Quantification of notch movements shows no significant difference in growth rates of unopposed (U) and opposed (O) incisors. N > = 5 mice per group. NS not significant by Student’s t-test. Data presented as mean ± S.E.M