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Evaluating the precision and accuracy of digital dental models with a low-cost structured light device.
Stuani, Vitor de Toledo; Paula, Matheus Dante de; Michel, Raphaella Coelho; Manfredi, Gustavo Gonçalves do Prado; Fernandes, Edna Maria de Oliveira; Passos, Diana Gabriela Soares Dos.
Afiliação
  • Stuani VT; Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos (Bauru/SP, Brazil).
  • Paula MD; Universidade de São Paulo, Hospital de Reabilitação de Anomalias Craniofaciais (Bauru/SP, Brazil).
  • Michel RC; Universidade de Saúde e Ecologia Humana, Faculdade de Odontologia, Disciplina de Periodontia (Vespasiano/MG, Brazil).
  • Manfredi GGDP; Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos (Bauru/SP, Brazil).
  • Fernandes EMO; Universidade Estadual do Norte do Paraná, Disciplina de Implantodontia (Jacarezinho/PR, Brazil).
  • Passos DGSD; Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Odontológicos (Bauru/SP, Brazil).
Dental Press J Orthod ; 29(1): e2423217, 2024.
Article em En | MEDLINE | ID: mdl-38567923
ABSTRACT

OBJECTIVE:

This study evaluated the accuracy and precision of digital models acquisition using a home-built, low-cost scanning system based on the structured light method.

METHODS:

a plaster model (PM) was scanned using the experimental device (SL) and a dental desktop scanner (DS). The teeth dimensions of PM and SL models were measured in triplicate, with a caliper and digitally, respectively. The agreement of the measurements of each model was evaluated using the intraclass correlation coefficient, and the validity between the different measurement techniques was assessed using the Bland-Altman analysis. The accuracy and precision of the models were qualitatively investigated using the mesh superposition of the SL and DS models.

RESULTS:

A high intraclass correlation coefficient was observed in all models (PM=0.964; SL1=0.998; SL2=0.995; SL3=0.998), and there was no statistical difference between the measurements of the SL models (p>0.05). PM and SL model measurements were found to be in good agreement, with only 3.57% of the observed differences between the same measurement being located outside 95% limits of agreement according to Bland and Altman (0.43 and -0.40 mm). In the superimpositions of SL-SL and SL-DS models, areas of discrepancy greater than 0.5 mm were observed mainly in interproximal, occlusal, and cervical sites.

CONCLUSION:

These results indicate that the home-built SL scanning system did not possess sufficient accuracy and precision for many clinical applications. However, the consistency in preserving the dental proportions suggests that the equipment can be used for planning, storage, and simple clinical purposes.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Dente / Imageamento Tridimensional Idioma: En Revista: Dental Press J Orthod Ano de publicação: 2024 Tipo de documento: Article País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Dente / Imageamento Tridimensional Idioma: En Revista: Dental Press J Orthod Ano de publicação: 2024 Tipo de documento: Article País de publicação: Brasil