Effect of Methotrexate Injection on Orthodontic Tooth Movement: An Experimental Study on Rats

Figure 3

Micro-CT image analysis of orthodontic tooth movement (OTM) after 21 days of force application: the negative control group (no OTM and no injection), positive control group (OTM and saline injection), and experimental groups injected with 0.75 and 1.5 mg/kg methotrexate. Scale bar: 29 mm. Magnification: 2.7.