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学科主题: 口腔医学
题名:
Novel Method of Fabricating Individual Trays for Maxillectomy Patients by Computer-Aided Design and Rapid Prototyping
作者: Huang, Zhi; Wang, Xin-zhi; Hou, Yue-zhong
关键词: Clinical application ; feasibility ; impression technique ; maxillofacial prosthesis
刊名: JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY
发表日期: 2015-02-01
DOI: 10.1111/jopr.12183
卷: 24, 期:2, 页:115-120
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Dentistry, Oral Surgery & Medicine
研究领域[WOS]: Dentistry, Oral Surgery & Medicine
关键词[WOS]: IMPRESSION MATERIALS ; CUSTOM TRAYS ; STOCK TRAYS ; ACCURACY ; MANUFACTURE ; PROSTHESIS ; ASPIRATION
英文摘要:

PurposeMaking impressions for maxillectomy patients is an essential but difficult task. This study developed a novel method to fabricate individual trays by computer-aided design (CAD) and rapid prototyping (RP) to simplify the process and enhance patient safety.

Materials and MethodsFive unilateral maxillectomy patients were recruited for this study. For each patient, a computed tomography (CT) scan was taken. Based on the 3D surface reconstruction of the target area, an individual tray was manufactured by CAD/RP. With a conventional custom tray as control, two final impressions were made using the different types of tray for each patient. The trays were sectioned, and in each section the thickness of the material was measured at six evenly distributed points. Descriptive statistics and paired t-test were used to examine the difference of the impression thickness. SAS 9.3 was applied in the statistical analysis. Afterwards, all casts were then optically 3D scanned and compared digitally to evaluate the feasibility of this method.

ResultsImpressions of all five maxillectomy patients were successfully made with individual trays fabricated by CAD/RP and traditional trays. The descriptive statistics of impression thickness measurement showed slightly more uneven results in the traditional trays, but no statistical significance was shown. A 3D digital comparison showed acceptable discrepancies within 1 mm in the majority of cast areas. The largest difference of 3 mm was observed in the buccal wall of the defective areas. Moderate deviations of 1 to 2 mm were detected in the buccal and labial vestibular groove areas.

ConclusionsThis study confirmed the feasibility of a novel method of fabricating individual trays by CAD/RP. Impressions made by individual trays manufactured using CAD/RP had a uniform thickness, with an acceptable level of accuracy compared to those made through conventional processes.

语种: 英语
WOS记录号: WOS:000350152100004
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/66874
Appears in Collections:北京大学口腔医学院_口腔修复科_期刊论文

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作者单位: Peking Univ, Dept Prosthodont, Sch & Hosp Stomatol, Beijing 100081, Peoples R China

Recommended Citation:
Huang, Zhi,Wang, Xin-zhi,Hou, Yue-zhong. Novel Method of Fabricating Individual Trays for Maxillectomy Patients by Computer-Aided Design and Rapid Prototyping[J]. JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY,2015,24(2):115-120.
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