Oz Aslihan Zeynep, Akcan Cenk Ahmet, El Hakan, Ciger Semra
Department of Orthodontics, Faculty of Dentistry, Ondokuz Mayis University, Samsun, Turkiye.
Department of Orthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkiye.
Eur J Dent. 2014 Apr;8(2):229-233. doi: 10.4103/1305-7456.130614.
The purpose of this study is to compare the accuracy of the treatment simulation module of Quick Ceph Studio (QCS) program to the actual treatment results in Class II Division 1 patients.
Retrospective study.
Twenty-six skeletal Class II patients treated with functional appliances were included. T0 and T1 lateral cephalograms were digitized using QCS. Before applying treatment simulation to the digitized cephalograms, the actual T0-T1 difference was calculated for the SNA, SNB, ANB angles, maxillary incisor inclination, and protrusion and mandibular incisor inclination and protrusion values. Next, using the treatment simulation module, the aforementioned values for the T0 cephalograms were manually entered to match the actual T1 values taking into account the T0-T1 differences. Paired sample t-test were applied to determine the difference between actual and treatment simulation measurements.
No significant differences were found for the anteroposterior location of the landmarks. Upper lip, soft tissue A point, soft tissue pogonion, and soft tissue B point measurements showed statistically significant difference between actual and treatment simulation in the vertical plane.
Quick Ceph program was reliable in terms of reflecting the sagittal changes that would probably occur with treatment and growth. However, vertical positions of the upper lip, soft tissue pogonion, soft tissue A point, and soft tissue B point were statistically different from actual results.
本研究旨在比较Quick Ceph Studio(QCS)程序的治疗模拟模块与安氏II类1分类患者实际治疗结果的准确性。
回顾性研究。
纳入26例使用功能矫治器治疗的骨骼型安氏II类患者。使用QCS对T0和T1侧位头影测量片进行数字化处理。在对数字化头影测量片应用治疗模拟之前,计算SNA、SNB、ANB角、上颌切牙倾斜度和突度以及下颌切牙倾斜度和突度值的实际T0 - T1差值。接下来,使用治疗模拟模块,考虑T0 - T1差值,手动输入T0头影测量片的上述值以匹配实际T1值。应用配对样本t检验来确定实际测量值与治疗模拟测量值之间的差异。
在标志点的前后位置上未发现显著差异。上唇、软组织A点、软组织颏前点和软组织B点的测量在垂直平面上实际测量值与治疗模拟值之间存在统计学显著差异。
Quick Ceph程序在反映治疗和生长可能发生的矢状面变化方面是可靠的。然而,上唇、软组织颏前点、软组织A点和软组织B点的垂直位置与实际结果在统计学上存在差异。