CAJ | 학술논문

目的探讨骨性Ⅲ类错(牙合)畸形患者前段牙弓的形态特征,为临床诊断和治疗提供理论依据.方法选择骨性Ⅲ类错(牙合)畸形患者52例为实验组,个别正常人63例为对照组,利用锥形束CT扫描颌面部,将扫描后图像导入Mimics 10.01图像处理软件分别测量与前段牙弓形态特征有关的9个测量项目.结果骨性Ⅲ类错(牙合)畸形患者组上颌前段牙弓宽度和深度均有小于个别正常人组的趋势、角度也小于正常(牙合)人;下颌前段牙弓的宽度、深度及角度测量值与正常人差异均无统计学意义.骨性Ⅲ类错(牙合)畸形患者的上下颌牙弓宽度差值和深度差值小于正常(牙合)人,上下颌牙弓前段角度差值小于正常(牙合)人.结论骨性Ⅲ类错畸形患者的上下颌牙弓前段弓形不协调,上颌前段弓形丰满度相对不足,上颌前段牙弓宽、深度发育不足,下颌前段牙弓宽、深度正常.
목적탐토골성Ⅲ류착(아합)기형환자전단아궁적형태특정,위림상진단화치료제공이론의거.방법선택골성Ⅲ류착(아합)기형환자52례위실험조,개별정상인63례위대조조,이용추형속CT소묘합면부,장소묘후도상도입Mimics 10.01도상처리연건분별측량여전단아궁형태특정유관적9개측량항목.결과골성Ⅲ류착(아합)기형환자조상합전단아궁관도화심도균유소우개별정상인조적추세、각도야소우정상(아합)인;하합전단아궁적관도、심도급각도측량치여정상인차이균무통계학의의.골성Ⅲ류착(아합)기형환자적상하합아궁관도차치화심도차치소우정상(아합)인,상하합아궁전단각도차치소우정상(아합)인.결론골성Ⅲ류착기형환자적상하합아궁전단궁형불협조,상합전단궁형봉만도상대불족,상합전단아궁관、심도발육불족,하합전단아궁관、심도정상.
Objective To study the characteristics of the anterior dental arch form of skeletal Class Ⅲ maloc-clusion and provide references for diagnosis and treatment plan. Methods Experimental group consists 52 cases of skeletal Class Ⅲ malocclusion and control group consists 63 cases of individual normal occlusion. Cone beam com-puted tomography(CBCT) scans of samples were taken and were used to measure with anterior dental arch of 9 measurements through Mimics 10.01. Results Compared with control group, maxillary anterior segments of the den-tal arch widths and depths have the tendency of decrease, maxillary anterior segments of the dental arch angles are smaller in skeletal Class Ⅲ malocclusion. Mandibular anterior dental arch are similar in two groups about widths, depths and angles. Differences between maxillary and mandibular canine widths and canine depths are smaller with skeletal Class Ⅲ malocclusion. And differences between maxillary and mandibular anterior segment angles are also smaller with skeletal Class Ⅲ malocclusion. Conclusion In skeletal Class Ⅲ malocclusion, the incoordination performance existed in the anterior dental arch form of maxillary and mandibular. The fullness of anterior dental arch form are inadequate. And the maxillary anterior dental arch widths and depths are insufficient.