CBCT采集方案和附加的叠加计算机光学印象对根管长度测量准确性的影响:一项离体研究。

IF 1.8 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

International Journal of Computerized Dentistry Pub Date : 2023-05-26 DOI:10.3290/j.ijcd.b3759621

Jörg Philipp Tchorz, Valentina Gierl, Lucila Piasecki, Wilhelm Frank, Karl-Thomas Wrbas

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引用次数: 0

摘要

目的:本研究的目的是评估根据CBCT采集方案测定根管长度(RCL)的准确性，并评估额外叠加计算机光学印模的影响。材料和方法:对30颗拔除的人磨牙进行低剂量(LD)和高清晰度(HD) CBCT扫描，并进行计算机光学成像。Sicat Endo软件(Sicat)用于CBCT RCL测量，有(LD+， HD+)和没有(LD-， HD-)叠加光学印模。为了评估准确性，计算实验组与实际根管长度(ARCL)的绝对差值，并采用Wilcoxon秩和检验进行统计分析。结果:ARCL与被测测量方法的绝对差异有统计学意义(P < 0.05)。更高的分辨率和额外叠加的计算机光学印象提高了测量精度。与ARCL相比，平均差异为0.26 mm (HD+)、0.34 mm (HD-)、0.43 mm (LD+)和0.66 mm (LD-)。HD+组93.4%的测量值在±0.5 mm范围内。结论:分辨率和附加计算机光学印象的叠加对CBCT测量RCL有显著影响。

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Effects of CBCT acquisition protocol and additional superimposed computerized optical impressions on the accuracy of root canal length measurements: an ex vivo study.

Aim: The purpose of the present investigation was to evaluate the accuracy of root canal length (RCL) determination according to CBCT acquisition protocol and evaluate the influence of additional superimposed computerized optical impressions.

Materials and methods: CBCT scans with low-dose (LD) and high-definition (HD) protocols as well as computerized optical impressions of 30 extracted human molars were acquired. Sicat Endo software (Sicat) was used for CBCT RCL measurements with (LD+, HD+) and without (LD-, HD-) a superimposed optical impression. To evaluate the accuracy, absolute differences between test groups and the actual root canal length (ARCL) were calculated and statistically analyzed using the Wilcoxon rank sum test.

Results: Absolute differences between the ARCL and the tested measurement methods varied significantly (P < 0.05). Both higher resolution and additionally superimposed computerized optical impression improved measurement accuracy. Mean differences compared with the ARCL were 0.26 mm (HD+), 0.34 mm (HD-), 0.43 mm (LD+), and 0.66 mm (LD-). 93.4% of all measurements in the HD+ group were within the limits of ± 0.5 mm.

Conclusion: Both resolution and superimposition of additional computerized optical impressions have a significant influence on RCL measurements using CBCT.

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来源期刊

International Journal of Computerized Dentistry Dentistry-Dentistry (miscellaneous)

CiteScore

2.90

自引率

0.00%

发文量

期刊介绍： This journal explores the myriad innovations in the emerging field of computerized dentistry and how to integrate them into clinical practice. The bulk of the journal is devoted to the science of computer-assisted dentistry, with research articles and clinical reports on all aspects of computer-based diagnostic and therapeutic applications, with special emphasis placed on CAD/CAM and image-processing systems. Articles also address the use of computer-based communication to support patient care, assess the quality of care, and enhance clinical decision making. The journal is presented in a bilingual format, with each issue offering three types of articles: science-based, application-based, and national society reports.