Ben-Bassat Yocheved, Brin Ilana
Department of Orthodontics, HU-Hadassah SDM, Jerusalem, Israel.
Am J Orthod Dentofacial Orthop. 2009 Mar;135(3):349-56. doi: 10.1016/j.ajodo.2008.09.002.
INTRODUCTION: Children with severe congenital absence of teeth present uncommon morphologies and therapeutic challenges. This study was designed to investigate the characteristic skeletal and dental features of this group. METHODS: A group of 28 children with at least 10 congenitally missing teeth (excluding third molars) was examined roentgenographically. The data were collected from their intraoral series or panoramic views and lateral cephalograms. The results of their cephalometric analyses were compared with classic cephalometric norms and with local population norms. RESULTS: Specific patterns of incisor, premolar, and third molar absence emerged. The cephalometric parameters of the children with severe absence differed from the classic norms in bimaxillary retrognathism, chin angle, and maxillary incisor inclination. These children differed from the Israeli norms in almost all parameters examined. CONCLUSIONS: Patients with severe congenital absence of teeth have unique dental and skeletal patterns.
引言：患有严重先天性牙齿缺失的儿童呈现出不常见的形态特征和治疗挑战。本研究旨在调查该群体独特的骨骼和牙齿特征。 方法：对一组28名至少有10颗先天性缺失牙（不包括第三磨牙）的儿童进行了X线检查。数据收集自他们的口腔内系列片或全景片以及头颅侧位片。将他们的头影测量分析结果与经典头影测量标准以及当地人群标准进行比较。 结果：出现了切牙、前磨牙和第三磨牙缺失的特定模式。严重牙齿缺失儿童的头影测量参数在双颌后缩、颏角和上颌切牙倾斜度方面与经典标准不同。在几乎所有检查的参数方面，这些儿童与以色列标准不同。 结论：患有严重先天性牙齿缺失的患者具有独特的牙齿和骨骼模式。
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