Assessment of accuracy and reliabilty of measurements obtained on 3D scanned models to conventional models

Aims and Objectives: To conclude on superior method of model fabrication compare accuracy the reliability measurements obtained 3D scanned models to conventional models. Materials Methods: A total 20 orthodontic study were from department orthodontics dentofacial orthopaedics with a full set permanent teeth right first molar left no anomalies crown. The plaster measured nearest 0.01 mm using Aerospace Electronic Digital Caliper. Identical by placing each arch integrated rotary table (dental wings 3SERIES) .The acquired data was then processed exported in stereo lithographic format DWOS CAD/CAM software. casts later 0.123 3D-Tool 64-Bit Free Viewer V13. Results: indicated that all for tooth size both methods highly correlated (r . 0.99; P\0.05).Cronbach α value at T1 T2 incisal segment ,canine two very close ideal 1, indicating high intraobserver reliability.