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Accuracy of measurements made on digital and study models (A comparative study) | ||
| MUSTANSIRIA DENTAL JOURNAL | ||
| Article 1, Volume 7, Issue 1, 2010, Pages 71-82 | ||
| Authors | ||
| ; ; ; Prof. Dr. Ausama A. Al-Mulla; ; Dr. Sawsan Mohammed Murad; | ||
| Abstract | ||
| Abstract Background: Dental study models are a cornerstone in the armamentarium used by orthodontists to both classify malocclusion and formulate treatment plans. Recent technological advances have allowed the generation of digital dental models that can be saved, digitized, measured with software tools, viewed threedimensionally, and retrieved with a computer. Prearrangement with Cadent Company of USA performed this service. Objectives: The purpose of this study was to test the accuracy of digital measurements made on digital models made by OrthoCAD system and compare it with manual measurements made on study models by the use of vernier caliper. Methods: Twenty students (8 males and 12 females) with normal Class I occlusion were selected from 175 students aged 16-25 years with certain criteria. Double impressions for each dental arch were taken to each student with the bite registration. The impressions were immediately poured with stone and with the collaboration of Cadent Company (Fairview, NJ, USA), twenty sets of stone models were sent with the bite registrations to them for digital processing and the other twenty stone models remain for manual measurements. Such an arrangement is for the first time in collaboration with an American institute. Tooth size, arch widths, arch length, space available, and the space required were done on both digital and study models. Results: This study revealed statistically non–significant differences with high strong correlation between the two methods of measurements. Conclusions: Digital models are an accurate, efficient, and easy to use alternative to stone models. With the current technology and future applications, digital models have potential to advance the practice of orthodontics, with the advantage of reducing the time necessary for measurements. OrthoCAD could revolutionize the way in which study models are utilized, stored, viewed, and managed. | ||
| Keywords | ||
| Key Words; OrthoCAD system | ||
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