Modular 3D printable orthodontic measuring apparatus for force and torque measurements of thermoplastic/removable appliances.

IF 1.3 4区医学 Q4 ENGINEERING, BIOMEDICAL Biomedical Engineering / Biomedizinische Technik Pub Date : 2021-10-26 Print Date: 2021-12-20 DOI:10.1515/bmt-2020-0294

Masoud Behyar, Anja Ratzmann, Sohrab Shojaei Khatouni, Maximilian Quasthoff, Christiane Pink, Jens Ladisch, Karl-Friedrich Krey

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引用次数: 3

Abstract

The magnitude of forces and moments applied on teeth during orthodontic treatment is crucial to achieve the desired tooth movement. The aim of this study is to introduce a modular 3D printable orthodontic measurement apparatus (M3DOMA), which can be used for measurements of forces and moments acting on teeth during treatment with aligners. The measurement device was characterized regarding signal to noise ratio (SNR) of the sensors, repeatability of measurements, influence of thermoforming, as well as reliability. Forces and moments were evaluated for an activation range of 0.1-0.4 mm, comparing them among different activation patterns with two aligner thicknesses. The sensors exhibited a SNR from 13-33 dB. Repeatability with repeated measurements showed standard deviations ≤0.015 N and 0.769 Nmm. The influence of thermoforming represented by standard deviation of forces ranges from 0.019-0.147 N. The device showed a range of intra class correlation (ICC) for repeated measurements for all sensors from 0.932 to 0.999. Hence the reliability of the device has been proven to be excellent.

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用于热塑性/可移动器具的力和扭矩测量的模块化3D可打印正畸测量装置。

在正畸治疗过程中，施加在牙齿上的力和力矩的大小对于实现预期的牙齿运动至关重要。本研究的目的是介绍一种模块化的3D打印正畸测量仪(M3DOMA)，该仪器可用于测量牙齿矫正器治疗期间作用在牙齿上的力和力矩。该测量装置从传感器的信噪比、测量的可重复性、热成型的影响以及可靠性等方面进行了表征。在0.1-0.4 mm的激活范围内评估了力和力矩，比较了两种校准器厚度的不同激活模式。传感器的信噪比为13-33 dB。重复测量的重复性表明，标准偏差≤0.015 N和0.769 Nmm。用力的标准差表示热成型的影响范围为0.019-0.147 n。对于所有传感器的重复测量，该装置显示了0.932 ~ 0.999的类内相关(ICC)范围。因此，该装置的可靠性已被证明是优秀的。

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来源期刊

Biomedical Engineering / Biomedizinische Technik 医学-工程：生物医学

CiteScore

3.50

自引率

5.90%

发文量

审稿时长

2-3 weeks

期刊介绍： Biomedical Engineering / Biomedizinische Technik (BMT) is a high-quality forum for the exchange of knowledge in the fields of biomedical engineering, medical information technology and biotechnology/bioengineering. As an established journal with a tradition of more than 60 years, BMT addresses engineers, natural scientists, and clinicians working in research, industry, or clinical practice.