Oliveira Natalice Sousa de, Gribel Bruno Frazão, Neves Leniana Santos, Lages Elizabeth Maria Bastos, Macari Soraia, Pretti Henrique
Universidade Federal de Minas Gerais, Faculdade de Odontologia, Departamento de Odontopediatria e Ortodontia, Divisão de Odontopediatria (Belo Horizonte/MG, Brazil).
Private practice (Belo Horizonte/MG, Brazil).
Dental Press J Orthod. 2019 Sep 5;24(4):46-53. doi: 10.1590/2177-6709.24.4.046-053.oar.
Conventional direct and indirect bonding techniques fail to obtain the ideal bracket position.
To compare the accuracy of virtual and conventional direct bonding of orthodontic accessories.
A single virtual configuration (dental mannequin with Class I malocclusion) served as basis for generating the reference model (treated virtually) and the intervention models (10 digital models and 10 solid models, obtained by means of prototyping). A total of 560 teeth were then equally distributed between a group of orthodontists (Group I, direct bonding; and Group II, virtual bonding), working in two different time intervals. The individual positions of the accessories were measured after three-dimensional superimposition with customized software. The Student's-t test for paired samples, and Chi-square tests were used for statistical analysis, both at the level of significance of 5%.
In comparison of the errors in raw values, there were significant differences only in the vertical (p< 0.001) and horizontal dimensions (p< 0.001). Considering the groups of ranges by clinical limits of the deviations, these differences were significant in the three dimensions, vertical (p< 0.001), horizontal (p= 0.044) and angular (p= 0.044).
Virtual bonding made it possible to obtain more precise/accurate positioning of the orthodontic accessories. The potential accuracy of this method brings new perspectives to refining the indirect bonding protocols.
传统的直接和间接粘接技术无法获得理想的托槽位置。
比较正畸附件虚拟粘接和传统直接粘接的准确性。
以单一虚拟配置（I类错牙合的牙模型）为基础生成参考模型（虚拟治疗）和干预模型（通过原型制作获得的10个数字模型和10个实体模型）。然后，在两个不同的时间段内，将总共560颗牙齿平均分配给一组正畸医生（第一组，直接粘接；第二组，虚拟粘接）。使用定制软件进行三维叠加后，测量附件的个体位置。采用配对样本t检验和卡方检验进行统计分析，显著性水平均为5%。
比较原始值的误差时，仅在垂直维度（p<0.001）和水平维度（p<0.001）存在显著差异。考虑按偏差临床限度划分的范围组，这些差异在三个维度上均显著，垂直维度（p<0.001）、水平维度（p=0.044）和角度维度（p=0.044）。
虚拟粘接能够实现正畸附件更精确的定位。该方法的潜在准确性为完善间接粘接方案带来了新的视角。
