Accuracy of one-versus two-phase photogrammetry implant impression system: an in-vitro study.

IF 2.3 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Atith Jiranaphawiboon, Dinesh Rokaya, Sasiwimol Sanohkan
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引用次数: 0

Abstract

Dental implants using digital technologies have become more popular for partial and fully edentulous patients. This in-vitro study aimed to compare the accuracy of one- and two-phase photogrammetry implant impression techniques. Six abutment-level implant analogs (screw-retained abutment diameter 4.6 mm, Straumann) were parallelly attached to the maxillary edentulous model. Scan bodies (CARES® RC Mono, Straumann) were put in place and scanned with an E4 lab scanner. Cylindrical abutments with bars (Dental system, 3Shape) were then designed and exported as a "Reference file". The study samples were divided into two groups, each containing 15 samples; Group I involved placing and capturing all six scan bodies (PIC transfers) using a stereo camera (PIC legacy), and Group II involved recording four anterior PIC transfers using a stereo camera. Following the import of the recorded data, a dental system was used to design cylindrical abutments with bars. Then, PIC transfers were removed, except the first left premolar, and the remaining PIC transfers were placed on the first molar on both sides, and records were made. Finally, the exported files were incorporated into a reverse engineering software program (Geomagic Design X) for comparison through best-fit alignment. It revealed no significant differences in linear, angular, and overall discrepancies between Groups I and Group II. Both groups exhibit discrepancies that are within the prescribed range for well-fitted complete arch implant support prostheses (< 100 µm). The capture protocols of one- and two-phase photogrammetry implant impressions present similar linear, angulation, and overall discrepancies. Both one- and two-phase photogrammetry implant impressions can be used in the complete arch implant support prostheses.

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一相与两相摄影测量植入物印模系统的准确性:体外研究。
使用数字技术的牙种植体在部分和全部无牙患者中越来越受欢迎。这项体外研究旨在比较一期和两期摄影测量植入物印模技术的准确性。在上颌无牙模型上平行附着6个基牙级模拟种植体(基牙直径4.6 mm, Straumann)。扫描体(CARES®RC Mono, Straumann)放置到位,用E4实验室扫描仪扫描。圆柱基台与棒(牙科系统,3Shape),然后设计和导出为“参考文件”。研究样本分为两组,每组15个样本;第一组使用立体摄像机(PIC legacy)放置和捕获所有6个扫描体(PIC转移),第二组使用立体摄像机记录4个前位PIC转移。输入记录数据后,使用牙科系统设计带杆的圆柱形基台。然后,除去除第一左前臼齿外的PIC转移物,将剩余的PIC转移物放置在两侧的第一臼齿上,并进行记录。最后,导出的文件被合并到逆向工程软件程序(Geomagic Design X)中,以便通过最佳拟合对齐进行比较。结果显示,第一组和第二组在线性、角度和总体差异方面没有显著差异。两组的差异均在合适的全弓种植体支持假体的规定范围内(
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来源期刊
Saudi Dental Journal
Saudi Dental Journal DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
3.60
自引率
0.00%
发文量
86
审稿时长
22 weeks
期刊介绍: Saudi Dental Journal is an English language, peer-reviewed scholarly publication in the area of dentistry. Saudi Dental Journal publishes original research and reviews on, but not limited to: • dental disease • clinical trials • dental equipment • new and experimental techniques • epidemiology and oral health • restorative dentistry • periodontology • endodontology • prosthodontics • paediatric dentistry • orthodontics and dental education Saudi Dental Journal is the official publication of the Saudi Dental Society and is published by King Saud University in collaboration with Elsevier and is edited by an international group of eminent researchers.
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