Evaluation of Dimensional Stability of Digital Dental Model Fabricated by Impression Scanning Method

The purpose of this study in vitro investigation was to evaluate the dimensional stability of dental digital models made by impression scanning method. Twenty working models were produced. Twenty impressions were made from study models. The dimensional stability of models of two groups (stone and digital models) was examined using six landmark distances. Stone models were measured through digital vernier calipers. Digital models were measured by the computer program. Statistical analyses were performed with Wilcoxon rank sum test (). The mean of six landmark distances were significantly larger in the stone models than in the digital models (p

[1]  Jae-Hong Kim,et al.  Influence of High Temperature of the Porcelain Firing Process on the Marginal Fit of Zirconia Core , 2013 .

[2]  Matts Andersson,et al.  Digitization of simulated clinical dental impressions: virtual three-dimensional analysis of exactness. , 2009, Dental materials : official publication of the Academy of Dental Materials.

[3]  P L Millstein,et al.  Determining the accuracy of gypsum casts made from type IV dental stone. , 1992, Journal of oral rehabilitation.

[4]  A F Ayoub,et al.  Assessment of the Accuracy of a Three-Dimensional Imaging System for Archiving Dental Study Models , 2003, Journal of orthodontics.

[5]  Wayne A. Bolton,et al.  Disharmony In Tooth Size And Its Relation To The Analysis And Treatment Of Malocclusion , 2009 .

[6]  Pascal Magne,et al.  Final impressions: a review of material properties and description of a current technique. , 2004, The International journal of periodontics & restorative dentistry.

[7]  M. Roos,et al.  Clinical study of the internal gaps of zirconia and metal frameworks for fixed partial dentures. , 2008, European journal of oral sciences.

[8]  Jae-Hong Kim,et al.  The Influence of Different Gypsum Materials on the Accuracy from Complete Arch Digital Impression , 2012 .

[9]  Allen R Firestone,et al.  The accuracy and reliability of measurements made on computer-based digital models. , 2009, The Angle orthodontist.

[10]  Thomas J Cangialosi,et al.  Comparison of measurements made on digital and plaster models. , 2003, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[11]  Birte Melsen,et al.  From Alginate Impressions to Digital Virtual Models: Accuracy and Reproducibility , 2009, Journal of orthodontics.

[12]  M N Lowey,et al.  The Development of a New Method of Cephalometric and Study Cast Mensuration with a Computer Controlled, Video Image Capture System. Part II: Study Cast Mensuration , 1993, British journal of orthodontics.

[13]  Drew W Fallis,et al.  Analysis of intra-arch and interarch measurements from digital models with 2 impression materials and a modeling process based on cone-beam computed tomography. , 2010, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[14]  U Hägg,et al.  Virtual model analysis as an alternative approach to plaster model analysis: reliability and validity. , 2010, European journal of orthodontics.

[15]  Martin P. Ward,et al.  Accuracy and dimensional stability of a silicone rubber base impression material , 1964 .

[16]  D. Hatcher,et al.  Current status and future needs in craniofacial imaging. , 2003, Orthodontics & craniofacial research.

[17]  Chung How Kau,et al.  A Comparison of the Accuracy of Linear Measurements Obtained from Cone Beam Computerized Tomography Images and Digital Models. , 2011, Seminars in orthodontics.

[18]  C D Stephens,et al.  Storage of Orthodontic Study Models in Hospital Units in the U.K. , 1992, British journal of orthodontics.

[19]  Thomas J Cangialosi,et al.  Comparison of space analysis evaluations with digital models and plaster dental casts. , 2009, American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

[20]  P. Mossey,et al.  Three-dimensional imaging of orthodontic models: a pilot study. , 2007, European journal of orthodontics.

[21]  R. Schneor,et al.  A new system for scanning, measuring and analyzing dental casts based on a 3D holographic sensor. , 2008, Orthodontics & craniofacial research.