An overview of the intraoral features and craniofacial morphology of growing and adult Japanese cleidocranial dysplasia subjects
An overview of the intraoral features and craniofacial morphology of growing and adult Japanese cleidocranial dysplasia subjects
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DOI：
10.1093/ejo/cjac039
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发表时间：
2022-07-14
影响因子：
2.6
通讯作者：
Moriyama, Keiji
中科院分区：
文献类型：
--
作者：
Shih-Wei Cheng, Eric;Tsuji, Michiko;Moriyama, Keiji
背景：锁骨颅骨发育不良（CCD）的正畸治疗需要了解保留乳牙、多生牙、恒牙延迟萌出的性质以及儿童至成年的颅面形态。本研究的目的是提供一个概述的口内和颅面特征的增长和成年日本CCD科目。方法我们使用正射断层摄影和照片对28名CCD受试者（男性，15.3 +/- 7.0岁;女性，15.2 +/- 5.1岁）的口内特征进行横断面评估。制作5-10岁、11-14岁、15岁以上3个年龄组的平均面形图（侧貌图），并对15岁以下2个年龄组（成人）进行头影测量。这些数据与日本标准进行了比较。结果成年男女乳牙平均存留11.7和8.4颗，恒牙平均萌出10.4和15.8颗，多生牙平均6.8和5.3颗。多生牙数与初次就诊年龄呈正相关。头影测量分析显示，所有组的上颌骨平均向前定位，升支有逆时针旋转的趋势，下颌骨均为前颌型。结论多生牙随年龄增长而增多。所有组的上颌骨平均向前定位，下颌骨逆时针旋转并向颌内。在提出合理的正畸治疗方案时，应考虑CCD患者在不同年龄段的颅面形态特征和口内条件的变化。
Background Orthodontic treatment for cleidocranial dysplasia (CCD) requires an understanding of the nature of the retained deciduous teeth, supernumerary teeth, delayed eruption of the permanent teeth, and craniofacial morphology from childhood to adulthood. This study aimed to provide an overview of the intraoral and craniofacial characteristics of growing and adult Japanese CCD subjects. Methods We assessed cross-sectionally the intraoral features of 28 CCD subjects (males, 15.3 +/- 7.0 years; females, 15.2 +/- 5.1 years) using orthopantomograms and photographs. Mean facial diagrams (profilograms) of 3 age groups (5-10 years, 11-14 years, over 15 years: adult) were constructed, and linear and angular measurements of 2 age groups (under 15 years, adult) were performed by using cephalograms. The data were compared with Japanese standards. Results A mean of 11.7 and 8.4 retained deciduous teeth, 10.4 and 15.8 erupted permanent teeth were observed in the adult males and females, and a mean of 6.8 and 5.3 supernumerary teeth were observed in all males and females, respectively. A positive correlation was found between the number of supernumerary teeth and the age at initial visit. Cephalometric analysis showed an average to anteriorly positioned maxilla, a tendency for counter-clockwise rotation of the ramus, and a prognathic mandible in all groups. Conclusions The number of supernumerary teeth increased with age. The maxilla was average to anteriorly positioned, and the mandible was counter-clockwise rotated and prognathic for all groups. These characteristic craniofacial morphologies and changes of intraoral conditions at different ages in CCD patients should be considered when proposing rational orthodontic treatment plans.