Department of Orthodontics, Vale do Rio Verde University - UNINCOR, Minas Gerais, Brazil.
Angle Orthod. 2012 Jan;82(1):102-6. doi: 10.2319/061311-389.1. Epub 2011 Aug 1.
To perform a blind comparative evaluation of the quality of orthodontic treatment provided by orthodontists and general dentists.
Sixty cases of orthodontic treatment were evaluated-30 treated by specialists in orthodontics and 30 treated by general dentists with no specialization course. Orthodontists were selected randomly by lots, in a population of 1596 professionals, and recordings were performed based on the guideline established by the Objective Grading System proposed by the American Board of Orthodontics. Each participant was asked to present a case considered representative of the best outcome among the cases treated, regardless of the type or initial severity of the malocclusion. Statistical analysis involved the chi-square, Wilcoxon, and Mann-Whitney tests. The level of significance was set at P = .05 for the statistical tests.
The results showed that 29 orthodontists (96.7%) presented cases considered satisfactory and would be approved on the qualification exam, whereas only 15 dentists (50%) had cases considered satisfactory. Moreover, treatment time was significantly shorter among the orthodontists (P = .022), and the posttreatment comparison revealed that orthodontists achieved better outcomes considering all the variables studied.
Orthodontists spend less time on treatment and achieve better quality outcomes than cases treated by general dentists who have not undergone a specialization course in orthodontics.
对正畸医生和普通牙医提供的正畸治疗质量进行盲法比较评估。
评估了 60 例正畸治疗病例，其中 30 例由正畸专家治疗，30 例由未接受正畸专业课程培训的普通牙医治疗。正畸医生通过抽签随机选择，在 1596 名专业人员中进行记录，基于美国正畸委员会提出的客观分级系统制定的指南进行。每位参与者被要求展示一例被认为是治疗效果最好的病例，无论错合类型或初始严重程度如何。统计分析涉及卡方检验、Wilcoxon 检验和Mann-Whitney 检验。统计检验的显著性水平设定为 P = .05。
结果显示，29 名正畸医生（96.7%）展示的病例被认为是满意的，将通过资格考试，而只有 15 名牙医（50%）的病例被认为是满意的。此外，正畸医生的治疗时间明显更短（P = .022），并且治疗后比较显示，正畸医生在所有研究的变量方面都取得了更好的结果。
正畸医生的治疗时间更短，治疗质量优于未接受正畸专业课程培训的普通牙医治疗的病例。
