[Quantitative evaluation for the accuracy of dental model three-dimensional scanner].
Beijing Da Xue Xue Bao Yi Xue Ban
; 45(1): 140-4, 2013 Feb 18.
Article
en Zh
| MEDLINE
| ID: mdl-23411537
ABSTRACT
OBJECTIVE:
To establish a method to evaluate dental model three-dimensional scanner quantitatively, and to evaluate the accuracy which is a core indicator of 3Shape D700 scanner.METHODS:
A standard geometric model similar to the dental arch was designed by three-dimensional reverse software and processed by high precision CNC (computer numerical control) processing technology. Core indicators of dental model three-dimensional scanner including single scanning accuracy, space consistency and rescan accuracy were evaluated.RESULTS:
The result of single scanning accuracy of 3Shape D700 scanner was (15.00±10.84) µm, and there was no statistics difference between the accuracy given by manufacturer's instructions which is 20 µm (P=0.053), and same as the results of space consistency (compare the accuracy in vertical direction and horizontal direction, P=0.524) and rescan accuracy (compare the rescan accuracy in vertical direction, P=0.633, and in horizontal direction P=0.221).CONCLUSION:
It is feasible to evaluate accuracy of dental model three-dimensional scanner by this method, which can avoid observer error caused by selecting points manually.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Tomógrafos Computarizados por Rayos X
/
Imagenología Tridimensional
/
Modelos Dentales
/
Precisión de la Medición Dimensional
Límite:
Humans
Idioma:
Zh
Revista:
Beijing Da Xue Xue Bao Yi Xue Ban
Asunto de la revista:
MEDICINA
Año:
2013
Tipo del documento:
Article
País de afiliación:
China