Groupings for rat mandibular distraction osteogenesis (DO).

<p>(<b>A</b>) Sprague-Dawley rats in the DO alone group received DO treatment, and those in the DO+transection of cervical sympathetic trunk (TCST) group underwent both DO and TCST treatment (n = 5, both). (<b>B</b>) After a 5-d latency, the distraction was initiated and allowed to take place for 10 days. Samples were harvested on day 10.