断层数字模型上牙齿测量的准确性和可重复性：一项系统评价和荟萃分析。
Accuracy and reproducibility of dental measurements on tomographic digital models: a systematic review and meta-analysis.
作者信息
Ferreira Jamille B, Christovam Ilana O, Alencar David S, da Motta Andréa F J, Mattos Claudia T, Cury-Saramago Adriana
机构信息
1 Department of Pediatric Dentistry and Orthodontics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
2 Department of Orthodontics, Universidade Federal Fluminense, Niterói, Brazil.
出版信息
Dentomaxillofac Radiol. 2017 Oct;46(7):20160455. doi: 10.1259/dmfr.20160455. Epub 2017 Apr 26.
OBJECTIVES
The aim of this systematic review with meta-analysis was to assess the accuracy and reproducibility of dental measurements obtained from digital study models generated from CBCT compared with those acquired from plaster models.
METHODS
The electronic databases Cochrane Library, Medline (via PubMed), Scopus, VHL, Web of Science, and System for Information on Grey Literature in Europe were screened to identify articles from 1998 until February 2016. The inclusion criteria were: prospective and retrospective clinical trials in humans; validation and/or comparison articles of dental study models obtained from CBCT and plaster models; and articles that used dental linear measurements as an assessment tool. The methodological quality of the studies was carried out by Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) tool. A meta-analysis was performed to validate all comparative measurements.
RESULTS
The databases search identified a total of 3160 items and 554 duplicates were excluded. After reading titles and abstracts, 12 articles were selected. Five articles were included after reading in full. The methodological quality obtained through QUADAS-2 was poor to moderate. In the meta-analysis, there were statistical differences between the mesiodistal widths of mandibular incisors, maxillary canines and premolars, and overall Bolton analysis. Therefore, the measurements considered accurate were maxillary and mandibular crowding, intermolar width and mesiodistal width of maxillary incisors, mandibular canines and premolars, in both arches for molars.
CONCLUSIONS
Digital models obtained from CBCT were not accurate for all measures assessed. The differences were clinically acceptable for all dental linear measurements, except for maxillary arch perimeter. Digital models are reproducible for all measurements when intraexaminer assessment is considered and need improvement in interexaminer evaluation.
目的
本系统评价及荟萃分析旨在评估从锥形束计算机断层扫描（CBCT）生成的数字研究模型获得的牙齿测量值与从石膏模型获得的测量值相比的准确性和可重复性。
方法
检索Cochrane图书馆、Medline（通过PubMed）、Scopus、VHL、科学引文索引和欧洲灰色文献信息系统等电子数据库，以识别1998年至2016年2月期间的文章。纳入标准为：人类前瞻性和回顾性临床试验；CBCT和石膏模型获得的牙齿研究模型的验证和/或比较文章；以及使用牙齿线性测量作为评估工具的文章。采用诊断准确性研究质量评估-2（QUADAS-2）工具对研究的方法学质量进行评估。进行荟萃分析以验证所有比较测量值。
结果
数据库检索共识别出3160篇文献，排除554篇重复文献。阅读标题和摘要后，选择了12篇文章。全文阅读后纳入5篇文章。通过QUADAS-2获得的方法学质量为差到中等。在荟萃分析中，下颌切牙、上颌尖牙和前磨牙的近远中宽度以及整体Bolton分析之间存在统计学差异。因此，在两个牙弓的磨牙中，被认为准确的测量值是上颌和下颌拥挤度、磨牙间宽度以及上颌切牙、下颌尖牙和前磨牙的近远中宽度。
结论
从CBCT获得的数字模型对于所有评估的测量值并不准确。除上颌牙弓周长外，所有牙齿线性测量的差异在临床上是可接受的。当考虑检查者内评估时，数字模型对于所有测量值都是可重复的，而在检查者间评估方面需要改进。
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