Kim Su-Jung, Park Young-Guk, Kang Seung-Goo
Department of Orthodontics, Kyung-Hee University, Seoul, Korea.
Angle Orthod. 2009 Mar;79(2):284-91. doi: 10.2319/020308-60.1.
To investigate the biologic effects of Corticision on alveolar remodeling in orthodontic tooth movement.
In this study, 16 cats were divided into 3 groups: group A, only orthodontic force (control); group B, orthodontic force plus Corticision; and group C, orthodontic force plus Corticision and periodic mobilization. Histologic and histomorphometric studies were performed on tissue specimens on days 7, 14, 21, and 28.
Extensive direct resorption of bundle bone with less hyalinization and more rapid removal of hyalinized tissue were observed in group B. The accumulated mean apposition area of new bone on day 28 was observed to be 3.5-fold higher in group B than in the control group A.
Corticision might be an efficient procedure for accelerating orthodontic tooth movement accompanied with alveolar bone remodeling.
研究皮质切开术对正畸牙齿移动中牙槽骨改建的生物学效应。
本研究将16只猫分为3组：A组，仅施加正畸力（对照组）；B组，正畸力加皮质切开术；C组，正畸力加皮质切开术及周期性松动。在第7、14、21和28天对组织标本进行组织学和组织形态计量学研究。
B组观察到束状骨广泛直接吸收，玻璃样变较少，玻璃样变组织清除更快。第28天，B组新骨累积平均沉积面积比对照组A高3.5倍。
皮质切开术可能是一种加速正畸牙齿移动并伴有牙槽骨改建的有效方法。
