Evaluating the precision and accuracy of digital dental models with a low-cost structured light device
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...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Dental Press Editora
2024-03-01
|
| Series: | Dental Press Journal of Orthodontics |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512024000100306&tlng=en |
| _version_ | 1797216763283243008 |
|---|---|
| author | Vitor de Toledo STUANI Matheus Dante de PAULA Raphaella Coelho MICHEL Gustavo Gonçalves do Prado MANFREDI Edna Maria de Oliveira FERNANDES Diana Gabriela Soares dos PASSOS |
| author_facet | Vitor de Toledo STUANI Matheus Dante de PAULA Raphaella Coelho MICHEL Gustavo Gonçalves do Prado MANFREDI Edna Maria de Oliveira FERNANDES Diana Gabriela Soares dos PASSOS |
| author_sort | Vitor de Toledo STUANI |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-24T11:51:08Z |
| format | Article |
| id | doaj.art-5ddcf9b8bcfa4691af26c4f2c76d8542 |
| institution | Directory Open Access Journal |
| issn | 2177-6709 |
| language | English |
| last_indexed | 2024-04-24T11:51:08Z |
| publishDate | 2024-03-01 |
| publisher | Dental Press Editora |
| record_format | Article |
| series | Dental Press Journal of Orthodontics |
| spelling | doaj.art-5ddcf9b8bcfa4691af26c4f2c76d85422024-04-09T07:40:37ZengDental Press EditoraDental Press Journal of Orthodontics2177-67092024-03-0129110.1590/2177-6709.29.1.e2423217.oarEvaluating the precision and accuracy of digital dental models with a low-cost structured light deviceVitor de Toledo STUANIhttps://orcid.org/0000-0001-5290-7614Matheus Dante de PAULAhttps://orcid.org/0009-0004-6112-7897Raphaella Coelho MICHELhttps://orcid.org/0000-0003-0878-1502Gustavo Gonçalves do Prado MANFREDIhttps://orcid.org/0000-0001-9623-9769Edna Maria de Oliveira FERNANDEShttps://orcid.org/0009-0001-1858-4257Diana Gabriela Soares dos PASSOShttps://orcid.org/0000-0002-1485-6104ABSTRACT 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512024000100306&tlng=enDental informaticsThree-dimensional imageData accuracy |
| spellingShingle | Vitor de Toledo STUANI Matheus Dante de PAULA Raphaella Coelho MICHEL Gustavo Gonçalves do Prado MANFREDI Edna Maria de Oliveira FERNANDES Diana Gabriela Soares dos PASSOS Evaluating the precision and accuracy of digital dental models with a low-cost structured light device Dental Press Journal of Orthodontics Dental informatics Three-dimensional image Data accuracy |
| title | Evaluating the precision and accuracy of digital dental models with a low-cost structured light device |
| title_full | Evaluating the precision and accuracy of digital dental models with a low-cost structured light device |
| title_fullStr | Evaluating the precision and accuracy of digital dental models with a low-cost structured light device |
| title_full_unstemmed | Evaluating the precision and accuracy of digital dental models with a low-cost structured light device |
| title_short | Evaluating the precision and accuracy of digital dental models with a low-cost structured light device |
| title_sort | evaluating the precision and accuracy of digital dental models with a low cost structured light device |
| topic | Dental informatics Three-dimensional image Data accuracy |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512024000100306&tlng=en |
| work_keys_str_mv | AT vitordetoledostuani evaluatingtheprecisionandaccuracyofdigitaldentalmodelswithalowcoststructuredlightdevice AT matheusdantedepaula evaluatingtheprecisionandaccuracyofdigitaldentalmodelswithalowcoststructuredlightdevice AT raphaellacoelhomichel evaluatingtheprecisionandaccuracyofdigitaldentalmodelswithalowcoststructuredlightdevice AT gustavogoncalvesdopradomanfredi evaluatingtheprecisionandaccuracyofdigitaldentalmodelswithalowcoststructuredlightdevice AT ednamariadeoliveirafernandes evaluatingtheprecisionandaccuracyofdigitaldentalmodelswithalowcoststructuredlightdevice AT dianagabrielasoaresdospassos evaluatingtheprecisionandaccuracyofdigitaldentalmodelswithalowcoststructuredlightdevice |