Impact of Autoclaving on the Dimensional Stability of 3D-Printed Surgical Guides for Aesthetic Crown Lengthening.

IF 5.2 3区医学 Q1 ENGINEERING, BIOMEDICAL

Journal of Functional Biomaterials Pub Date : 2025-08-02 DOI:10.3390/jfb16080284

Albert González-Barnadas, Anna Ribas-Garcia, Adrià Jorba-García, Rui Figueiredo, Eduard Valmaseda-Castellón, Octavi Camps-Font

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Abstract

The aim of this study was to evaluate the impact of autoclaving on the dimensional stability of surgical guides (SGs) for aesthetic crown lengthening (ACL) using different resins/printing methods. Fifty SGs for ACL were printed using five different resin/printer combinations (FL, SR, ND, KS and VC). All the SGs were scanned before (T0) and after (T1) sterilization. Autoclaving was conducted at 134 °C during 4 min. The STL files of each SG at T0 and T1 were compared with the original design (TR). Dimensional stability was measured using trueness and precision. Deviations from TR to T1 were calculated in the three space axes and by measuring the area between three reference landmarks. At T0, the FL group showed the best trueness and precision, while the SR group performed significantly worse than the other groups. At T1, all the groups except VC exhibited significant dimensional alterations compared with T0. Also, VC showed the best trueness and precision values. All the groups had a significant deviation in at least one space axis, while only the SR group exhibited significant variations from T1 to TR in the area between the reference landmarks. Most of the evaluated resin/3D printer combinations suffered significant dimensional alterations after autoclaving.

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高压灭菌对3d打印美观冠延长手术指南尺寸稳定性的影响。

本研究的目的是评估使用不同树脂/打印方法的高压灭菌对美观冠延长（ACL）手术指南（SGs）尺寸稳定性的影响。使用五种不同的树脂/打印机组合（FL， SR， ND， KS和VC）打印50个ACL SGs。消毒前（T0）和消毒后（T1）对所有SGs进行扫描。在134°C下蒸压4分钟。将各SG在T0和T1时的STL文件与原始设计（TR）进行比较。尺寸稳定性用真实度和精密度来衡量。在三个空间轴上，通过测量三个参考地标之间的面积，计算TR到T1的偏差。在T0时，FL组表现出最好的准确性和准确性，而SR组表现明显差于其他组。T1时，除VC组外，其余各组与T0相比均有显著的维数变化。VC显示出最好的真实度和精度值。所有组至少在一个空间轴上有显著偏差，而只有SR组在参考地标之间的区域从T1到TR有显著差异。大多数被评估的树脂/3D打印机组合在高压灭菌后都有明显的尺寸变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Functional Biomaterials Engineering-Biomedical Engineering

CiteScore

4.60

自引率

4.20%

发文量

226

审稿时长

11 weeks

期刊介绍： Journal of Functional Biomaterials (JFB, ISSN 2079-4983) is an international and interdisciplinary scientific journal that publishes regular research papers (articles), reviews and short communications about applications of materials for biomedical use. JFB covers subjects from chemistry, pharmacy, biology, physics over to engineering. The journal focuses on the preparation, performance and use of functional biomaterials in biomedical devices and their behaviour in physiological environments. Our aim is to encourage scientists to publish their results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Several topical special issues will be published. Scope: adhesion, adsorption, biocompatibility, biohybrid materials, bio-inert materials, biomaterials, biomedical devices, biomimetic materials, bone repair, cardiovascular devices, ceramics, composite materials, dental implants, dental materials, drug delivery systems, functional biopolymers, glasses, hyper branched polymers, molecularly imprinted polymers (MIPs), nanomedicine, nanoparticles, nanotechnology, natural materials, self-assembly smart materials, stimuli responsive materials, surface modification, tissue devices, tissue engineering, tissue-derived materials, urological devices.