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首页> 外文期刊>Journal of Dentistry >A Software for Space Analysis and Comparison of the Accuracy of Tooth Measurements by Digital and Manual Methods
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A Software for Space Analysis and Comparison of the Accuracy of Tooth Measurements by Digital and Manual Methods

机译：通过数字和手动方法进行空间分析和牙齿测量精度比较的软件

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Statement of Problems: Several methods have been presented for the prediction of mesiodistal width of the unerupted canines and premolars. Nowadays, application of digital methods is suggested in dental analysis in orthodontics. Purpose: The aim of this study was to design a software for space analysis and comparison of the accuracy of tooth measurements by digital and manual methods in an Iranian population. Material and Method: By using Delphi and C++ programming languages, a software was designed. After insertion of 2 dimensional scanned images of dental casts, the software can predict mesiodistal width of the unerupted canines and premolars by using 12-variable regression equations based on the incisors and first molars. After providing 2 dimensional images of 125 dental casts in permanent dentition (75 females and 50 males), the prediction accuracy of regression equations was investigated. By providing 2-dimensional images of dental casts in 50 patients with mixed dentition, the accuracy of dental measurements was evaluated through the designed software. Moreover, the time duration of manual and digital measurements was evaluated. Data was analyzed in SPSS, version 17, using paired sample t-test for comparing the manual and digital measurements and evaluation of interobserver and intraobserver errors. Results: Prediction of the width of the canines and premolars by the designed software was not significantly different from manual measurement of those teeth on dental casts with digital Caliper ( p &0.05). There were no significant differences between manual and digital measurement of mesiodistal width of the teeth ( p &0.05). Also, there were no significant differences between intra-observer and inter-observer measurements and the speed of measurements in digital and manual methods. However, the time duration and speed of space analysis with these two methods were significantly different. Conclusion: The designed software has a good accuracy in prediction of unerupted canines and premolars with equations and it is an efficient tool for predicting the mesiodistal width of the teeth as to the time duration or speed. Key words: Digital, Space analysis software, 2D scanned images.
机译：问题陈述：已经提出了几种方法来预测直立的犬齿和前磨牙的近中隔宽度。如今，建议在正畸牙齿分析中使用数字方法。目的：本研究的目的是设计一个用于空间分析和比较伊朗人群中通过数字和手动方法进行牙齿测量的准确性的软件。材料和方法：通过使用Delphi和C ++编程语言，设计了一个软件。插入牙模的二维扫描图像后，该软件可以通过使用基于门牙和第一磨牙的12变量回归方程式来预测未脱牙的犬齿和前磨牙的近中隔宽度。在提供永久性牙列中125个牙模的二维图像（75位女性和50位男性）后，研究了回归方程的预测准确性。通过为50名混合牙列患者提供铸模的二维图像，通过设计的软件评估了牙齿测量的准确性。此外，评估了手动和数字测量的持续时间。使用配对样本t检验在SPSS版本17中分析数据，以比较人工和数字测量以及观察者间和观察者内错误的评估。结果：通过设计的软件对犬齿和前磨牙的宽度的预测与使用数字卡尺在牙模上手动测量那些牙齿没有显着不同（p＞ 0.05）。手动和数字测量牙近牙宽度的差异无统计学意义（p> 0.05）。同样，观察者内部和观察者之间的测量与数字和手动方法的测量速度之间也没有显着差异。但是，使用这两种方法进行空间分析的时间和速度显着不同。结论：设计的软件具有良好的预测方程式的犬齿和前磨牙的准确性，并且是预测牙齿的近中坚宽度，持续时间或速度的有效工具。关键词：数字化，空间分析软件，二维扫描图像。

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