根据矢状颌关系评估儿童牙齿的成熟度。
Evaluation of dental maturation in children according to sagittal jaw relationship.
作者信息
Esenlik Elcin, Atak Aslihan, Altun Ceyhan
机构信息
Department of Orthodontics, Faculty of Dentistry, Suleyman Demirel University, Isparta, Turkiye.
Department of Pediatric Dentistry, Centre of Dental Sciences, GMMA, Ankara, Turkiye.
出版信息
Eur J Dent. 2014 Jan;8(1):38-43. doi: 10.4103/1305-7456.126238.
OBJECTIVE
The aims of this retrospective study were to determine compliance with dental and chronological ages and to analyze the relationships between dental age and orthodontic sagittal anomalies.
MATERIALS AND METHODS
A total of 221 subjects between the ages of 7 and 15.9 years (165 girls and 156 boys) were included in the study. The dental age of seven left mandibular teeth was assessed according to the Demirjian method. The maxillary protrusion, mandibular protrusion, maxillo-mandibular and vertical plane angles were measured from cephalometric films.
RESULTS
The mean difference between the chronological age and dental age in female patients was 0.94 years and 0.33 years in male patients (P < 0.01). No differences between the sagittal classification groups were found. There was no relationship between dental age and the SNA° or the GoGn-SN°. A statistically significant negative relationship was found between dental age and the SNB° and there was a significant linear relationship between dental age and the ANB°.
CONCLUSION
Dental age in girls and boys has been estimated to be more advanced than chronological age in all classes and dental maturation advanced in cases with a tendency to develop Class II malocclusions.
目的
本回顾性研究旨在确定牙齿年龄与实际年龄的符合情况，并分析牙齿年龄与正畸矢状面异常之间的关系。
材料与方法
本研究共纳入221名年龄在7至15.9岁之间的受试者（165名女孩和156名男孩）。根据德米尔坚方法评估七颗左下颌牙齿的牙齿年龄。从头颅侧位片测量上颌前突、下颌前突、上颌-下颌及垂直平面角。
结果
女性患者实际年龄与牙齿年龄的平均差值为0.94岁，男性患者为0.33岁（P < 0.01）。矢状面分类组之间未发现差异。牙齿年龄与SNA°或GoGn-SN°之间无相关性。牙齿年龄与SNB°之间存在统计学显著的负相关，且牙齿年龄与ANB°之间存在显著的线性关系。
结论
估计男孩和女孩的牙齿年龄在所有分类中均比实际年龄更超前，且在有发展为II类错牙合倾向的病例中牙齿成熟度更高。
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