European Journal of Prosthodontics and Restorative Dentistry

An in vitro Comparison of Accuracy Between Three Different Face Scanning Modalities


A mannequin head was digitized using a reference scanner (Scan in a Box) to acquire the reference mesh. Subsequently it was scanned with a structured light scanner (Einscan Pro HD), a stereophotogrammetry scanner (RayFace100) and a laser scanner (Proface 3D Mid) to acquire test meshes.Resulting meshes were delineated in four horizontal areas and discrepancies calculated for the complete face and different facial partitions. One-way Anova and pairwise comparisons tests were used to compare trueness and precision between scanners across different areas. Significant differences were detected among scanners for complete face (F (3, 27) =776, P < 0.01)) and for delineated face areas (F (11, 99) =200.1, P < 0.01)). Einscan had significantly higher accuracy for the complete
face (P<0.01) and significantly higher trueness for each facial partition compared to other scanners. RayFace had significantly higher trueness when scanning the middle part of face compared to other facial parts. Proface had significantly lower upper facial third trueness compared to other facial parts. All scanners had accuracy levels below the 2.00mm threshold. Facial scanning accuracy was influenced per scanner used. Scanning trueness per device was influenced by location of surface area. All scanners had accuracy levels within the acceptable accuracy threshold.

Laser Scanner
Face Scanner
Structured Light Scanner


George Michelinakis, Dimitrios Apostolakis, Emmanouil Velidakis

Articles from this issue

Title / DOI Access Page Start Page End Purchase
Antimicrobial Activity in Chitosan-Treated Prosthetic Materials: A Systematic Review
no access 214 223 £10.00
Prevention of Caries in Cancer Patients: A Systematic Review on the Effectiveness of Dental Materials
no access 224 233 £
Mandibular Distalisation for Tooth Wear in Patients Requiring Mandibular Protrusion for Sleep Apnoea
no access 234 238 £10.00
Changes in Tooth Mobility and Position in an Established Dentition Following Placement of a New Restoration
no access 239 247 £10.00
Finishing and Polishing Procedures and Glaze Application on Physical Properties of a Fine-Structure Feldspathic Ceramic
no access 248 253 £10.00
The Effect of Ethanol Associated with Universal Adhesive on Resin Composite Adhesion to Different Dentin Depths: A Long-Term In Vitro Study
no access 254 261 £10.00
A Passive Noise Attenuation Earplug Designed to Minimise Unwanted Air Turbine Driven High-Speed Dental Drill Noise
no access 262 277 £10.00
Mechanical Characteristics of Composite Resins Produced by Additive and Subtractive Manufacturing
no access 278 285 £10.00
The Effect of Denture Adhesives on Denture Quality and Occlusal Force
no access 286 295 £10.00
An in vitro Comparison of Accuracy Between Three Different Face Scanning Modalities
no access 296 307 £10.00
Influence of Layer and Sintering Temperature on the Optical Properties of Multilayered Zirconia Materials
no access 308 320 £10.00
  • free access Free Access
  • no access No Access
  • full access Full Access