CAJ | 학술논문

目的：研究少年期中切牙根尖唇舌侧牙槽骨厚度，并探讨与其相关的硬组织测量指标。方法对42例符合纳入标准的错牙合畸形患者的锥体束CT(CBCT)进行评估，应用MIMICS 10.0软件测量168颗中切牙根尖唇舌侧牙槽骨厚度，并对42例患者进行CBCT三维和头颅侧位片二维头影测量，应用SPSS 21.0统计软件对中切牙根尖周牙槽骨厚度值与8项常用的硬组织头影测量指标进行Spearman 相关性分析。结果少年期上中切牙根尖唇侧的牙槽骨厚度与上中切牙唇倾度呈正相关，与SNA角呈负相关，腭侧厚度的相关性与唇侧相反；下中切牙根尖唇、舌侧的牙槽骨厚度均与SN-MP角呈负相关，唇侧厚度与ANB角、下中切牙唇倾度呈正相关，腭侧厚度的相关性与唇侧相反。结论头影测量中部分硬组织测量指标与少年期中切牙根尖周牙槽骨的厚度有相关性，对临床具有参考价值。
목적：연구소년기중절아근첨진설측아조골후도，병탐토여기상관적경조직측량지표。방법대42례부합납입표준적착아합기형환자적추체속CT(CBCT)진행평고，응용MIMICS 10.0연건측량168과중절아근첨진설측아조골후도，병대42례환자진행CBCT삼유화두로측위편이유두영측량，응용SPSS 21.0통계연건대중절아근첨주아조골후도치여8항상용적경조직두영측량지표진행Spearman 상관성분석。결과소년기상중절아근첨진측적아조골후도여상중절아진경도정정상관，여SNA각정부상관，악측후도적상관성여진측상반；하중절아근첨진、설측적아조골후도균여SN-MP각정부상관，진측후도여ANB각、하중절아진경도정정상관，악측후도적상관성여진측상반。결론두영측량중부분경조직측량지표여소년기중절아근첨주아조골적후도유상관성，대림상구유삼고개치。
Objective To investigate the alveolar bone thickness around apex of central incisor of early youth,and to explore its cor-relation with relevant cephalometric indexes of hard tissue. Methods 42 malocclusion patients who fit the inclusion criteria were ac-cessed by cone-beam CT (CBCT),and the thickness of alveolar bone around apex of 168 central incisors was measured by MIMICS 10. 0 software. Cephalometric measurements of the 42 patients were made by three-dimensional CBCT and two-dimensional lateral cephalo-grams. SPSS 21. 0 statistical software was used for the analysis of the correlation between the thickness of alveolar bone and the results of cephalometric measurements. Results The thickness of the labial alveolar bone around apex of the upper central incisor of early youth was positively correlated with the protrusion of the upper central incisor,and was negatively correlated with SNA. The correlation with the palatal thickness was opposed to that with the labial thickness. The thickness of the labial and lingual alveolar bone around apex of the lower central incisor was negatively correlated with SN-MP. The labial thickness of the lower central incisor was positively associ-ated with ANB and the protrusion of the lower central incisor,and the correlation with the palatal thickness was opposed to that with the labial thickness. Conclusions Some cephalometric indexes of hard tissue are related to the alveolar bone thickness around apex of cen-tral incisor of early youth,delivering the clinical reference value.