Superimposition of maxillary digital models using the palatal rugae: Does ageing affect the reliability?
Superimposition of maxillary digital models using the palatal rugae: Does ageing affect the reliability?
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DOI：
10.1111/ocr.12309
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发表时间：
2019-08-01
影响因子：
3.1
通讯作者：
Ruellas, Antonio Carlos de Oliveira
中科院分区：
文献类型：
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作者：
Garib, Daniela;Miranda, Felicia;Ruellas, Antonio Carlos de Oliveira
结构化抽象目标本研究的目的是使用两种数字模型叠加方法评估 3 维上颌牙齿变化的可靠性。人群设置和样本来自Bauru 牙科学院正畸科、圣保罗大学和密歇根大学颅面生长中心。十五名正常咬合的受试者。材料与方法 样本由 15 名正常咬合受试者的数字研究模型组成，这些受试者分别在 13 岁 (T1)、18 岁 (T2) 和 60 岁 (T3) 时采集。使用SlicerCMF 3.1软件，使用放置在切牙乳头、第二和第三腭皱以及距第三腭皱远端10mm处的9个标志进行叠加（配准）。比较了两种配准方法：地标 (LA) 和感兴趣区域 (ROI)。由3名检查者测量双侧后牙颊尖尖和右中切牙切缘的三维变化。组内相关系数和 Bland-Altman 方法评估了检查者内部和检查者之间的一致性。结果 使用两种配准方法，T1-T2 和 T2-T3 测量结果均具有良好或极好的检查员内部一致性。对于 T1-T2 测量，检查者间的一致性从良好到优秀，而对于大多数 T2-T3 测量，检查者间的一致性从差到一般。大多数测量的平均 T1-T2 差异小于 0.5 毫米。结论 正常咬合患者的上颌数字牙科模型叠加在腭皱上，对于使用标志或感兴趣区域的 5 年间隔比较显示出足够的可靠性。对于 40 年间隔比较，发现使用两种叠加方法的再现性均低于可接受的水平。
Structured AbstractObjectives The aim of this study was to evaluate the reliability of 3-dimensional maxillary dental changes using two methods of digital model superimposition. Setting and Sample Population The Department of Orthodontics of Bauru Dental School, University of Sao Paulo and University of Michigan Craniofacial Growth Center. Fifteen subjects with normal occlusion. Material & Methods The sample was composed of digital study models of 15 normal occlusion subjects taken at 13 (T1), 18 (T2) and 60 years of age (T3). Using the software SlicerCMF 3.1, superimposition (registration) was conducted using 9 landmarks placed on the incisive papilla, second and third palatal rugae and 10 mm distal to the third palatal rugae. Two registration methods were compared: landmarks (LA) and regions of interest (ROI). Three-dimensional changes of landmarks on the buccal cusp tip of posterior teeth bilaterally and the incisal edge of the right central incisor were measured by three examiners. Intraclass correlation coefficients and Bland-Altman method evaluated intra- and inter-examiner agreements. Results Good or excellent intra-examiner agreement was found for T1-T2 and T2-T3 measurements using both registration methods. Inter-examiner agreements were good to excellent for T1-T2 measurements and poor to fair for most T2-T3 measurements. Mean T1-T2 differences were less than 0.5 mm for most measurements. Conclusion Maxillary digital dental models of patients with normal occlusion superimposed on palatal rugae showed an adequate reliability for a 5-year interval comparison using landmarks or regions of interest. Lower than acceptable reproducibility using both superimposition methods was found for a 40-year interval comparison.