Influence of ambient light conditions on the accuracy and scanning time of seven intraoral scanners in complete-arch implant scans

doi:10.1016/j.jdent.2022.104138

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AutoresGastón Ochoa-López, Rocío Cascos, José Luis Antonaya-Martín, Marta Revilla-León

Por qué importa

Un estudio reciente publicado en el Journal of Dentistry investiga cómo la iluminación ambiental afecta la precisión y el tiempo de escaneo de siete escáneres intraorales (IOS) en la toma de registros de arcos completos edéntulos con implantes. Los resultados demuestran que las condiciones de luz, medidas en lux, influyen significativamente tanto en la exactitud como en la eficiencia de los dispositivos. Cada escáner presentó un rendimiento óptimo bajo una iluminación específica, lo que subraya la importancia de ajustar la luz de la clínica para maximizar la fidelidad de los escaneos. Esta investigación aporta datos cruciales para optimizar la práctica clínica diaria con tecnología digital, asegurando la obtención de datos fiables para rehabilitaciones protésicas complejas.

Abstract original

Purpose: The purpose of this in vitro study was to evaluate the effect of ambient light illuminance on the accuracy and scanning time of different intraoral scanners (IOSs) in complete-arch implant scans. Material and methods: Seven IOSs (TRIOS 3, Primescan, Element 5D, i700, i500, CS3700, and CS3600) at 5 ambient lighting illuminances (100, 500, 1000, 5000, and 10 000 lux) were evaluated. An edentulous cast with 4 implants was selected as the master model. An implant scan body was tightened on each implant. The cast was digitized by using a laboratory scanner to obtain a reference standard tessellation language (STL) file, and 50 scans (10 per ambient light condition) were recorded with each IOS. Scanning time was recorded by using a digital chronograph. Intraoral scan deviations were calculated by using a 3D metrology software program (Geomagic Control X). Kruskal-Wallis and pairwise comparison tests were used to analyze the data (α=0.05). Results: The trueness and precision values obtained for each IOS tested were significantly different under the varying lighting conditions assessed. TRIOS 3 (34.0 ± 3.3 µm trueness; 24.5 ± 14.9 µm precision), Element 5D (34.5 ± 7.1 µm trueness; 25.9 ± 7.6 µm precision), and CS3700 (34.9. ±13.0 µm trueness; 34.6 ± 19.2 µm precision) performed better under 100 lux illumination, CS3600 (69.5 ± 24.0 µm trueness; 36.6 ± 20.1 µm precision) at 500 lux; i500 (36.2 ± 5.1 µm trueness; 21.4 ± 6.8 µm precision) at 1000 lux; i700 (34.8 ± 2.2 µm trueness; 15.4 ± 5.0 µm precision) at 5000 lux, and Primescan (37.4 ± 37.3 µm trueness; 26.2 ± 26.2 µm precision) at 10,000 lux. Additionally, the scanning time was different under different illuminance for each IOS. The fastest IOS in all light conditions was Primescan, with significant differences with all the groups (P<.01), followed by TRIOS 3 in all groups except under 100 lux illumination, where i700 was the second fastest. Conclusions: Ambient light influenced the accuracy and scanning time of IOSs assessed; however, the effect was not the same for all devices. It is necessary to optimize ambient light illuminance for each IOS to maximize scanning accuracy.

Leer texto completo ↗DOI · 10.1016/j.jdent.2022.104138

Autor Doctor&Cols

Jose Luis Antonaya Martín
Rehabilitación Oral y Estética Dental

Cómo citar

Ochoa-López G, Cascos R, Antonaya-Martín JL, Revilla-León M. Influence of ambient light conditions on the accuracy and scanning time of seven intraoral scanners in complete-arch implant scans. Journal of Dentistry. 2022. doi:10.1016/j.jdent.2022.104138