Gezgin O, Botsali M S
Department of Pediatric Dentistry, Necmettin Erbakan University, Karatay, Turkey.
Department of Pediatric Dentistry, Faculty of Dentistry, Selcuk University, Konya, Turkey.
Niger J Clin Pract. 2018 Feb;21(2):156-162. doi: 10.4103/njcp.njcp_399_16.
The aim of this study was to evaluate the crown and root development in patients with cleft lip and palate using medical software programmes.
In our study, 25 patients with mixed dentition unilateral cleft lip and palate were examined with cone-beam computed tomography (CBCT). The tomography images obtained as high resolution medical images on the computer control system (MIMICS 15.0, Materialise, Leuven, Belgium and SOLIDWORKS 2014 Premium, Concord, Massachusetts) were converted to three-dimensional volumetric images. These three-dimensional images of the cleft on the sides of the teeth in the crown and root growth were measured by mesiodistal length and crown/root rate with volume and area. These measurements were compared with a control group of healthy individuals.
There were no statistically significant differences in the volume, surface area and MD size, crown/root ratio of central incisor, canine, first premolar and second premolar teeth within defect, and healthy teeth. However, it was found that there was a significant difference between the volume, surface area and MD size, and crown/root ratio of the lateral teeth in each group.
In particular, among patients with cleft lip and palate, on obtaining a solid model of the tooth structure by using these programs, tooth development can be examined in more detail, diagnosis can be made more reliable, as well as in treatment planning. We believe that these programs can be used to resolve certain limitations such as a lack of an application to be used in routine dental treatment and in particular the need to do more study.
本研究旨在使用医学软件程序评估唇腭裂患者的牙冠和牙根发育情况。
在我们的研究中，对25例混合牙列单侧唇腭裂患者进行了锥形束计算机断层扫描（CBCT）检查。在计算机控制系统（比利时鲁汶的Materialise公司的MIMICS 15.0以及美国马萨诸塞州康科德的达索系统公司的SOLIDWORKS 2014 Premium）上获取的断层扫描图像作为高分辨率医学图像被转换为三维体积图像。通过近远中长度以及牙冠/牙根比率，利用体积和面积对牙冠和牙根生长部位牙齿侧面裂隙的这些三维图像进行测量。将这些测量结果与健康个体的对照组进行比较。
缺损区内及健康牙齿的中切牙、尖牙、第一前磨牙和第二前磨牙的体积、表面积、近远中尺寸以及牙冠/牙根比率，在统计学上无显著差异。然而，发现每组侧切牙的体积、表面积、近远中尺寸以及牙冠/牙根比率之间存在显著差异。
特别是在唇腭裂患者中，通过使用这些程序获得牙齿结构的实体模型后，可以更详细地检查牙齿发育情况，使诊断更可靠，在治疗计划制定方面也是如此。我们认为这些程序可用于解决某些局限性，例如缺乏用于常规牙科治疗的应用程序，特别是需要进行更多研究。
