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. 2014 Oct 15;15(10):18610–18622. doi: 10.3390/ijms151018610

Figure 2.

Figure 2

The comprehensive mixture of tobacco smoke components (TSCs) retarded experimental tooth movement. M1: first molar. M2: second molar. M3: third molar. PC: power chain. (A,C) μCT images of the maxillary bone observed from occlusal and lateral views; (A) Black arrows represent the PC insertion site. PC time-dependently separated the molars; (B) Quantitative data on intermolar distances between M1 and M2. All data show mean ± s.d. (n = 10). ** p < 0.01 (ANOVA with Tukey–Kramer test). TSCs significantly retarded experimental tooth movement induced by PC insertion; (C) Representative sagittal two-dimensional section of dentition with/without PC insertion. PC insertion caused slight tipping for M1. Angles a and b: representative tipping angles with/without tooth movement used in (D); Contralateral side was used as angle a. White asterisk: disappeared alveolar bone adjacent to the distal root of M1; (D) The quantitative difference in tipping angles of M1 with/without PC insertion. Data show angle b minus angle a. All data show mean ± s.d. (n = 10). There was no significant difference in tipping angles between rats treated with/without TSCs (Student’s t-test).