Shadid Rola, Sadaqah Nasrin
Int J Prosthodont. 2022 September/October;35(5):627–646. doi: 10.11607/ijp.7407. Epub 2022 Mar 29.
To evaluate the accuracy of virtual static articulation and to determine factors that affect its accuracy.
An electronic search up to December 21, 2020 was carried out in the PubMed, Cochrane, and EMBASE databases, and further searching was performed in the references of the evaluated articles. Studies were included if they were published in a peer-reviewed journal in English, were a clinical or laboratory study assessing only static virtual articulation accuracy without making computer-aided manufacturing restorations, used intraoral scanner (IOS) or extraoral scanner (EOS) systems, and evaluated tooth or implant cases.
After applying the inclusion criteria, a total of 28 studies were analyzed. Nine were clinical, and 19 were laboratory. Most of the studies indicated that virtual static articulation had a comparable accuracy to conventional methods in the presence of completely dentate arches, stable occlusal contacts, a single prepared tooth, or arches involving a single missing posterior tooth. The factors that appeared to influence the accuracy were the articulation technique, number, dimension, and location of virtual interocclusal records (VIRs), the length of articulated scans, and the position and size of edentulous areas.
Though conclusions were derived mainly from laboratory studies, static VIR had an acceptable accuracy in the presence of certain situations.
评估虚拟静态咬合的准确性，并确定影响其准确性的因素。
截至2020年12月21日，在PubMed、Cochrane和EMBASE数据库中进行了电子检索，并在评估文章的参考文献中进行了进一步检索。纳入标准为：发表于英文同行评审期刊；为仅评估静态虚拟咬合准确性而不进行计算机辅助制造修复体的临床或实验室研究；使用口内扫描仪（IOS）或口外扫描仪（EOS）系统；评估牙齿或种植体病例。
应用纳入标准后，共分析了28项研究。其中9项为临床研究，19项为实验室研究。大多数研究表明，在存在完整牙弓、稳定的咬合接触、单个预备牙或涉及单个后牙缺失的牙弓时，虚拟静态咬合与传统方法具有相当的准确性。似乎影响准确性的因素包括咬合技术、虚拟咬合记录（VIR）的数量、尺寸和位置、咬合扫描的长度以及无牙区的位置和大小。
尽管结论主要来自实验室研究，但在某些情况下，静态VIR具有可接受的准确性。
