Evaluation of interproximal and occlusal contacts of single posterior implant-supported restorations fabricated using different CAD software programs: A clinical study.
Moamen Mohsen Sarhan, Nermeen Abd Elsalam Rady, Mohamed Moataz Khamis
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引用次数: 0
Abstract
Statement of problem: The accuracy of the interproximal and occlusal contacts of single posterior implant-supported restorations designed using computer-aided design (CAD) software programs remains uncertain.
Purpose: The aim of this clinical study was to assess the interproximal and occlusal contacts of single posterior implant-supported restorations designed with 2 distinct dental CAD software programs.
Material and methods: Forty single posterior implant-supported restorations were evaluated for interproximal and occlusal contacts. Restorations were designed with 2 CAD software programs (exocad and Dental System) by using the same digital scan and milled with the same milling machine and material. Two study groups were formed according to the CAD software program used (n=20). Dental floss, 12-µm shimstock, the OccluSense device, and the Medit occlusion analyzer app were used to evaluate the interproximal, static, and dynamic occlusal contacts. The Shapiro-Wilk normality test was used, and the Z-test was used to compare the results (α=.05).
Results: The interproximal and static occlusal contacts were statistically more accurate when using the Dental System 3Shape software program than the exocad software program (P<.05). No statistically significant difference in the dynamic occlusal contact was found between the 2 studied groups (P=.147).
Conclusions: The accuracy of interproximal and occlusal contacts of single posterior implant-supported restorations differed depending on the CAD software program used. The Dental System 3Shape software program demonstrated more accurate interproximal and static occlusal contacts than the exocad software program.
问题陈述：使用计算机辅助设计（CAD）软件程序设计的单一后牙种植体支持修复体近端间和咬合接触的准确性仍然不确定。目的：本临床研究的目的是评估用2种不同的牙科CAD软件设计的单一后牙种植体支持修复体的近端间和咬合接触。材料和方法：对近端间和咬合接触的40个单一后牙种植体支持修复进行评估。修复体采用2种CAD软件程序（exocad和Dental System）设计，使用相同的数字扫描，使用相同的铣床和材料进行铣削。根据所使用的CAD软件程序组成两个研究组（n=20）。使用牙线、12µm摆托、OccluSense设备和Medit咬合分析仪应用程序评估近端间、静态和动态咬合接触。采用Shapiro-Wilk正态性检验，采用z检验比较结果（α= 0.05）。结果：使用Dental System 3Shape软件的近端接触和静态咬合接触比使用exocad软件的近端接触和静态咬合接触更准确(p)。结论：单后牙种植体支持修复体近端接触和静态咬合接触的准确性因使用CAD软件的不同而不同。Dental System 3Shape软件程序比exocad软件程序显示出更准确的近端间和静态咬合接触。
期刊介绍：
The Journal of Prosthetic Dentistry is the leading professional journal devoted exclusively to prosthetic and restorative dentistry. The Journal is the official publication for 24 leading U.S. international prosthodontic organizations. The monthly publication features timely, original peer-reviewed articles on the newest techniques, dental materials, and research findings. The Journal serves prosthodontists and dentists in advanced practice, and features color photos that illustrate many step-by-step procedures. The Journal of Prosthetic Dentistry is included in Index Medicus and CINAHL.
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