Three-Dimensional Printed Attachments: Analysis of Reproduction Accuracy Compared to Traditional Attachments

被引:1
作者
Bellocchio, Angela Mirea [1 ]
Ciancio, Elia [1 ]
Ciraolo, Ludovica [1 ]
Barbera, Serena [1 ]
Nucera, Riccardo [1 ]
机构
[1] Univ Messina, Sch Dent, Dept Biomed & Dent Sci & Morphofunct Imaging, Sect Orthodont, I-98125 Messina, Italy
来源
APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 09期
关键词
aligners; attachments; digital dentistry; 3D-printed attachments; reproduction accuracy; attachment manufacture; TOOTH MOVEMENT; THICKNESS; ALIGNERS; BRACKETS;
D O I
10.3390/app14093837
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Background: The aim of this study was to propose a new 3D printing method for attachment production and compare the reproduction accuracy of traditional attachments with the proposed 3D-printed attachments. Methods: A standardized 3D model attachment was created with the dimensions of 3, 2, and 2 mm for the apico-coronal, mesio-distal, and vestibulo-lingual dimensions, respectively. A 3D ideal model of the maxillary arch was used to apply four standardized attachments on the vestibular surface of selected teeth. The obtained model with placed attachments was used to reproduce composite attachments via the conventional method. A transfer template was used to bond with the flow composite resin 3D-printed attachment on a new arch model without attachments. The models with traditional attachments and 3D-printed attachments were scanned and overlapped with the original CAD model with attachments. To assess the attachment precision, vertical and horizontal cutting planes were used on the overlapped models. The outcome selection focused on puff analysis (excess composite material evaluation) and shape analysis (attachment accuracy evaluation). Results: The results indicated that the 3D-printed attachments showed significant differences (p < 0.05) compared to the traditional attachments. The descriptive statistics showed the higher discrepancies compared to the CAD model of the traditionally created attachments in the shape (0.85 mm) and puff dimension (1.02 mm). Conclusion: Custom 3D-printed attachment production is an effective method for achieving greater attachment precision.
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页数:12
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