Departamento de Odontologia Conservadora, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Eur J Dent Educ. 2022 Aug;26(3):516-522. doi: 10.1111/eje.12728. Epub 2021 Dec 8.
To analyse what are the methods for working length (WLD) determination taught for undergraduate students in Brazilian Dental Schools and the perception of professors about the use of electronic WL determination in the clinical practice.
An online questionnaire with eighteen closed questions was sent to 209 Schools of Dentistry in Brazil using the Google Forms Platform. The questionnaire was structured to analyse the perception of professors in the department of endodontics about the method of working length determination taught in undergraduate courses in Dentistry. The data collected in the questionnaires were transferred to an Excel spreadsheet and analysed using absolute and relative frequencies. The non-parametric Mann-Whitney test was used to compare groups.
Of the 209 schools contacted, 41 (19.61%) returned answers to the questionnaire. According to professors, electronic working length (WL) determination had a shorter length of time to perform it (p < .001), WL measurement accuracy (p < .001) and ease of performance (p < .001). Professors felt safer when maintaining patency when using electronic WL determination (p = .0020).
Both radiographic and electronic methods of WL determination are taught in Brazilian Schools of Dentistry. The electronic method was used more frequently, especially in undergraduate clinical courses.
分析巴西牙科学校为本科生教授的工作长度（WL）确定方法，以及教授对电子 WL 确定在临床实践中应用的看法。
使用 Google 表单平台向巴西的 209 所牙科学院发送了一份包含 18 个封闭问题的在线问卷。该问卷旨在分析牙髓病学系教授对牙科本科课程中教授的工作长度确定方法的看法。问卷中收集的数据被转移到 Excel 电子表格中，并使用绝对和相对频率进行分析。使用非参数曼-惠特尼检验比较组。
在所联系的 209 所学校中，有 41 所（19.61%）回答了问卷。根据教授的说法，电子工作长度（WL）测定的执行时间更短（p<.001）、WL 测量精度（p<.001）和操作简便性（p<.001）更高。教授们在使用电子 WL 测定时感到保持通畅更安全（p=0.0020）。
巴西牙科学院教授了放射学和电子 WL 测定方法。电子方法使用更频繁，尤其是在本科临床课程中。
