Yan Feng-Guo, Ping Fei-Yun, Shan Yi-Dan, Chen Jun, Xu Xin, Yan Jun-Lie
Department of Stomatology, Second Affiliated Hospital, Medical College, Zhejiang University, Hangzhou 310009, China.
Zhonghua Yi Xue Za Zhi. 2011 May 17;91(18):1242-5.
To observe the effect of artificial bone implantation of hard cleft palate on the development of maxilla.
From January 1997 to December 1999, 40 patients with hard cleft palate were randomly divided into two groups: control group and implantation group (n = 20 each). The patients in the implantation group received an implantation of compound artificial bone of HA-Bone cement. All patients had a follow-up since 16 years old. A three dimensional model was established with computed tomography and rapid prototype technique to analyze the maxilla in three dimension. At the same time, a dentognathic model was employed.
There were no differences in the results between the three dimensional and dentognathic models. No difference was found in the development of maxilla in length and height between the control and implantation groups. There were marked differences in the development of maxilla in width between two groups (67.6 mm ± 4.3 mm vs 61.3 mm ± 4.1 mm, 63.5 mm ± 3.9 mm vs 57.3 mm ± 3.1 mm, 26.2 mm ± 1.8 mm vs 26.4 mm ± 1.9 mm, all P < 0.05). The width of maxilla in the implantation group was markedly wider than that in the control group.
The application of three dimensional model for evaluating the development of maxilla is both straightforward and accurate. Bone implantation of hard cleft palate is an obvious boost to the development of maxilla in width. It should be included into a comprehensive orthodontic treatment for patients with hard cleft palate.
观察硬腭裂人工骨植入对上颌骨发育的影响。
1997年1月至1999年12月，40例硬腭裂患者随机分为两组：对照组和植入组（每组n = 20）。植入组患者接受HA - 骨水泥复合人工骨植入。所有患者从16岁起进行随访。采用计算机断层扫描和快速原型技术建立三维模型，对颌骨进行三维分析。同时制作牙颌模型。
三维模型和牙颌模型的结果无差异。对照组和植入组上颌骨长度和高度的发育无差异。两组上颌骨宽度发育有显著差异（67.6 mm ± 4.3 mm对61.3 mm ± 4.1 mm，63.5 mm ± 3.9 mm对57.3 mm ± 3.1 mm，26.2 mm ± 1.8 mm对26.4 mm ± 1.9 mm，均P < 0.05）。植入组上颌骨宽度明显宽于对照组。
应用三维模型评估上颌骨发育简便、准确。硬腭裂人工骨植入对上颌骨宽度发育有明显促进作用。应将其纳入硬腭裂患者的综合正畸治疗中。
