Comparison of linear measurements and analyses taken from plaster models and three-dimensional images

Betina Grehs Porto; Thiago Soares Porto; Monica Barros Silva; Renésio Armindo Grehs; Ary dos Santos Pinto; Shilpa H Bhandi; Mateus Rodrigues Tonetto; Matheus Coelho Bandéca; Lourdes Aparecida Martins dos Santos-Pinto

doi:10.5005/jp-journals-10024-1599

Back

Comparison of linear measurements and analyses taken from plaster models and three-dimensional images

Journal article

Open access

Comparison of linear measurements and analyses taken from plaster models and three-dimensional images

Betina Grehs Porto, Thiago Soares Porto, Monica Barros Silva, Renésio Armindo Grehs, Ary dos Santos Pinto, Shilpa H Bhandi, Mateus Rodrigues Tonetto, Matheus Coelho Bandéca and Lourdes Aparecida Martins dos Santos-Pinto

The journal of contemporary dental practice, Vol.15(6), pp.681-687

11/01/2014

DOI: 10.5005/jp-journals-10024-1599

PMID: 25825090

Files and links (1)

url

https://doi.org/10.5005/jp-journals-10024-1599View

Published (Version of record) Open Access

Abstract

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.

Calcium Sulfate - chemistry

Cephalometry - instrumentation

Cephalometry - statistics & numerical data

Cuspid - anatomy & histology

Dental Arch - anatomy & histology

Dental Materials - chemistry

Dental Models

Humans

Image Processing, Computer-Assisted - statistics & numerical data

Imaging, Three-Dimensional - statistics & numerical data

Incisor - anatomy & histology

Lasers

Molar - anatomy & histology

Odontometry - statistics & numerical data

Overbite - pathology

Reproducibility of Results

Details

Title: Subtitle: Comparison of linear measurements and analyses taken from plaster models and three-dimensional images
Creators: Betina Grehs Porto - Centro Universitário de Araraquara
Thiago Soares Porto - Centro Universitário de Araraquara
Monica Barros Silva - Department of Post-Graduate Program in Dentistry, CEUMA University, Sao Luis-Maranhão, Brazil
Renésio Armindo Grehs - Universidade Federal de Santa Maria
Ary dos Santos Pinto - Universidade Estadual Paulista (Unesp)
Shilpa H Bhandi - M. S. Ramaiah Dental College and Hospital
Mateus Rodrigues Tonetto - Universidade de Cuiabá
Matheus Coelho Bandéca - Centro Universitário do Maranhão
Lourdes Aparecida Martins dos Santos-Pinto - Centro Universitário de Araraquara
Resource Type: Journal article
Publication Details: The journal of contemporary dental practice, Vol.15(6), pp.681-687
DOI: 10.5005/jp-journals-10024-1599
PMID: 25825090
ISSN: 1526-3711
eISSN: 1526-3711
Language: English
Date published: 11/01/2014
Academic Unit: Operative Dentistry
Record Identifier: 9984420938502771

Metrics

7 Record Views