Rehmann Peter, Sichwardt Viktor, Wöstmann Bernd
Int J Prosthodont. 2017 Jan/Feb;30(1):27-29. doi: 10.11607/ijp.4976.
This study aimed to analyze a possible gain in accuracy in intraoral scanning systems by manufacturer calibration.
A master model was scanned tenfold with a Lava Chairside Oral Scanner (3m ESPE) and a CEREC Bluecam suspected to be decalibrated. Thereafter the scanners were calibrated and the model was scanned again. An iTero system served as comparison. All scans were compared to the master scan, and the mean deviation (entire arch, single tooth) was calculated.
After calibration, there was a significant gain in accuracy for both systems.
Intraoral digital scanners may be sensitive to hardware decalibration invisible to the user and therefore need maintenance.
本研究旨在分析通过制造商校准是否能提高口腔内扫描系统的准确性。
使用疑似校准不当的Lava椅旁口腔扫描仪（3m ESPE）和CEREC Bluecam对一个主模型进行了十次扫描。之后对扫描仪进行校准，并再次扫描该模型。将iTero系统作为对照。将所有扫描结果与主扫描进行比较，并计算平均偏差（全牙弓、单颗牙）。
校准后，两个系统的准确性均有显著提高。
口腔内数字扫描仪可能对用户不可见的硬件校准不当敏感，因此需要维护。
