Faculty of Dentistry, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam.
Department of Orthodontics, Faculty of Dentistry, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam.
Int Dent J. 2023 Apr;73(2):311-318. doi: 10.1016/j.identj.2022.07.009. Epub 2022 Sep 25.
The use of questionnaires to assess patients' dental fear is critical to dental research and practice. As one of the most well-established tools in this field, the Dental Fear Survey (DFS) was translated into Vietnamese (V-DFS) and employed in previous studies. However, its validity and reliability have not been reported. This study aimed to determine the validity and reliability of V-DFS in adults.
The DFS was translated to Vietnamese in accordance with the "Guideline for the Process of Cross-cultural Adaptation of Self-reported Measures" to create the V-DFS. Next, 414 students at Pham Ngoc Thach University of Medicine completed the V-DFS to examine its validity and reliability. The factorial validity of V-DFS was assessed using exploratory factor analysis (EFA) and structural equation modeling (SEM). The internal consistency and test-retest reliability of the V-DFS were assessed using Cronbach's alpha (α), intraclass correlation coefficient (ICC), and Spearman's rank-order correlation coefficient (r).
The rotated component matrix of the EFA revealed 3 factors: specific stimuli, anticipatory fear and avoidance, and physiologic arousal. The statistical indices of the best-fitting V-DFS model in SEM analysis satisfied the cutoff values. Cronbach's α ranged from .82 to .94 for the 3 factors. The ICC and r of the whole questionnaire were .86 and .86, respectively.
DFS was successfully translated into Vietnamese with good validity and reliability. Further research should be conducted to examine its validity in various populations and to improve its characteristics.
使用问卷评估患者的牙科恐惧对牙科研究和实践至关重要。作为该领域最成熟的工具之一，牙科恐惧量表（DFS）已被翻译成越南语（V-DFS）并在先前的研究中使用。然而，其有效性和可靠性尚未得到报道。本研究旨在确定 V-DFS 在成年人中的有效性和可靠性。
根据“自报告措施跨文化适应过程指南”将 DFS 翻译为越南语，创建 V-DFS。接下来，414 名 Pham Ngoc Thach 医科大学的学生完成了 V-DFS，以检验其有效性和可靠性。使用探索性因子分析（EFA）和结构方程建模（SEM）评估 V-DFS 的因子有效性。使用 Cronbach's alpha（α）、组内相关系数（ICC）和 Spearman 秩相关系数（r）评估 V-DFS 的内部一致性和重测信度。
EFA 的旋转成分矩阵显示出 3 个因素：特定刺激、预期恐惧和回避以及生理唤醒。SEM 分析中最佳拟合 V-DFS 模型的统计指标满足了截止值。3 个因素的 Cronbach's α 范围为.82 至.94。整个问卷的 ICC 和 r 分别为.86 和.86。
DFS 已成功翻译成越南语，具有良好的有效性和可靠性。应进一步研究其在各种人群中的有效性，并改善其特征。
