This study aimed to identify diagnosis and restorative practices of non-carious cervical lesions (NCCLs) by a group of Brazilian dentists from the State of Rio de Janeiro. After ethical approval, a questionnaire was sent for a group of dentists registered at the Regional Council of Dentistry of the State of Rio de Janeiro (CRO-RJ, Brazil) and the answers were collected in a period of 15 days. The questionnaire considered training experience and attendance profile, diagnostic attitudes and restorative practices for direct restorations of NCCLs. The data were presented in a descriptive way and Chi-square tests (95% significance) were used to verify possible relations between dentists training/attendance profiles and NCCLs diagnosis/restorative attitudes. Most part of dentists considered the etiology as multifactorial and seek to distinguish the different types of NCCL, but only a minority respond to use auxiliary methods for diagnosis. Cotton-roll is the most used method for moisture control and 51.6% do not use gingival retraction/separation techniques. Two-step total-etch adhesive systems and hybrid/microhybrid composite resins were the most commonly refereed materials for direct restorations. Only 8.3% considered that restorations can last for a period of more than 5 years in clinical service. There was significant relation between remuneration and the type of isolation (p = 0.038) and also with gingival retraction/separation techniques (p = 0.043). It can be concluded that (a) the majority of the respondents revealed to seek distinguishes among the different types of NCCLs, but only a minority use auxiliary methods to diagnosis; (b) the form of remuneration influence the attitudes regarding the isolation method; (c) the two-step total-etch adhesive systems are the most used to restore NCCLs, (d) and that for the most part of the respondents the restorations of NCCLs made with resin composites do not last for more than 5 years.

中文翻译：

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一组来自里约热内卢州的巴西牙医对非龋齿性宫颈病变的诊断态度和修复措施

这项研究旨在确定一组来自​​里约热内卢州的巴西牙医对非龋性宫颈病变（NCCL）的诊断和修复方法。在获得道德批准后，向在里约热内卢州牙科委员会（巴西CRO-RJ）注册的一组牙医发送了问卷，并在15天内收集了答案。该问卷考虑了直接恢复NCCL的培训经验和出勤情况，诊断态度和恢复做法。数据以描述性方式呈现，卡方检验（显着性为95％）用于验证牙医培训/出勤概况与NCCL诊断/恢复态度之间的可能关系。大多数牙医认为病因是多因素的，试图区分不同类型的NCCL，但是只有少数人回答使用辅助方法进行诊断。棉卷是最常用的水分控制方法，有51.6％的人不使用牙龈退缩/分离技术。两步全蚀刻粘合剂系统和混合/微混合复合树脂是直接修复最常用的材料。只有8.3％的人认为修复体可以在临床服务中持续5年以上。薪酬与隔离类型之间存在显着关系（p = 0.038），而与牙龈退缩/分离技术之间也存在显着关系（p = 0.043）。可以得出的结论是：（a）大部分受访者表示要寻求区分不同类型的NCCL，但只有少数人使用辅助方法进行诊断；（b）薪酬的形式会影响人们对隔离方法的态度；（c）两步全蚀刻胶粘剂系统是最常用于修复NCCL的系统，（d）并且对于大多数受访者而言，用树脂复合材料制成的NCCL修复的持续时间不超过5年。