Otro
Comparison of linear measurements and analyses taken from plaster models and three-dimensional images
Registro en:
The Journal Of Contemporary Dental Practice, v. 15, n. 6, p. 681-687, 2014.
1526-3711
10.5005/jp-journals-10024-1599
0000-0003-2386-842X
25825090
Autor
Porto, Betina Grehs
Porto, Thiago Soares
Silva, Monica Barros
Grehs, Renésio Armindo
Pinto, Ary dos Santos
Bhandi, Shilpa H.
Tonetto, Mateus Rodrigues
Bandéca, Matheus Coelho
Santos-Pinto, Lourdes Aparecida Martins dos
Resumen
Digital models are an alternative for carrying out analyses and devising treatment plans in orthodontics. The objective of this study was to evaluate the accuracy and the reproducibility of measurements of tooth sizes, interdental distances and analyses of occlusion using plaster models and their digital images. Thirty pairs of plaster models were chosen at random, and the digital images of each plaster model were obtained using a laser scanner (3Shape R-700, 3Shape A/S). With the plaster models, the measurements were taken using a caliper (Mitutoyo Digimatic(®), Mitutoyo (UK) Ltd) and the MicroScribe (MS) 3DX (Immersion, San Jose, Calif). For the digital images, the measurement tools used were those from the O3d software (Widialabs, Brazil). The data obtained were compared statistically using the Dahlberg formula, analysis of variance and the Tukey test (p < 0.05). The majority of the measurements, obtained using the caliper and O3d were identical, and both were significantly different from those obtained using the MS. Intra-examiner agreement was lowest when using the MS. The results demonstrated that the accuracy and reproducibility of the tooth measurements and analyses from the plaster models using the caliper and from the digital models using O3d software were identical.