A Comparison of Three Types of Orthodontic Study Models

Plaster study models have been the gold standard for many years but have many disadvantages. Intra-oral scanners and three-dimensional printers have provided alternatives in the form of digital and printed study models. Their accuracy for clinical use requires further validation. The aim of this research was to compare the accuracy of digital and printed study models with plaster study models.The objectives were to compare the accuracy of measurements obtained from digital and printed study models with those of plaster study models, to establish which type of study model yielded the most accurate measurements in comparison to plaster study models and to identify disadvantages associated with the use of these types of study models. A study sample of 50 patients attending a private orthodontic practice for treatment participated. Patients’ participation was voluntary