Evaluation of Virtual Measurements of Scanned Dental Impressions
Journal Title: International Journal of Dentistry and Oral Science (IJDOS) - Year 2017, Vol 4, Issue 8
Abstract
Introduction: Digital models have been proposed as substitutes for plaster models. Dental arch impression scanning is a rapid and practical approach for digital model obtainment; however, few studies have accessed the accuracy of the method. This study verified the accuracy of virtual measurements obtained with the scanner Ortho Insight 3D, version 5.0 (Motionview Software, LLC, Chattanooga, Tennessee, USA). Materials And Methods: Total of 26 plaster models belonging to the Bahia Federal University Orthodontic postgraduation program were divided into three groups: G1 (plaster models); G2 (alginate impressions scan) and G3 (plaster models scan). Virtual measurements were compared to the manual by evaluating upper intercanine and intermolar distances and the antero posterior distance between upper left canine and upper left molar. Paired Student t and Lin agreement (5% of significance level) were employed for the statistical analysis. Results: Of the evaluated measures, the mean difference ranged from 0.48mm to 0.55mm when compared G2 and G1. The mean difference ranged from 0.6mm to 0.65mm between G3 and G1 groups. Comparing the groups G2 and G3 to G1, it was found statistically significant differences between all variables (p <0.05). There was a substantial agreement (ρc between 0.95-0.99) and almost perfect (ρc> 0.99) for all parameters evaluated. Conclusion: Despite having existed significant differences between the virtual and physical approaches, substantial and almost perfect agreement between them allow us to suggest that there is accuracy of virtual images obtained from scanned impressions in alginate using the laser scanner Ortho Insight 3D.
Authors and Affiliations
Renata Oliveira de Souza
Keywords
Related Articles
- EP ID EP324544
- DOI 10.19070/2377-8075-17000103
- Views 158
- Downloads 0
Premature Exfoliation of Deciduous Teeth in a Four-Year-Old Child with Hypophosphatemic Rickets
Background: Vitamin D is an essential hormone for calcium gut absorption. It is also involved in child growth, cancer prevention, immune system responses, and tooth formation. Vitamin D deficiency is a common cause of ri...
Bone Graft Substitutes for Bone Defect Regeneration. A Collective Review
Objective: The purpose of this review article is to illustrate the current state of development of bone graft substitutes that could be used for bone defect regeneration, as well as to analyze their efficacy for clinical...
In vivo Evaluation of a Novel Custom-Made press-Fit Dental Implant Through Electron Beam Melting® (EBM®)
Recently, Electron Beam Melting (EBM ) has been demonstrated as a novel manufacturing technique with high potential to fabricate custom-made press-fit dental implants. However, the biological performances of these implan...
Neurofibromatosis type I with an Rare Oral Manifestation
Neurofibromatosis type I is one of the most common genetic diseases and it may have oral manifestation. Objective: To report a case about a 33 years old female patient diagnosed with neurofibromatosis type I in the skin...
Comparison of Retention Forces of Different Fabrication Methods of Co-Cr Crowns: Pre-sintered and Milled, Cast and Electroforming Secondary Crowns with Different Taper Angles
To investigate the retention forces of differently fabricated secondary crowns made of Co-Cr alloy and electroforming secondary crowns considering different taper angles. Cobalt-chromium primary crowns with 0°, 1° and 2°...