Zhulev E N, Nikolaeva E Y
Privolzhsky Research Medical University, Nizhniy Novgorod, Russia.
Stomatologiia (Mosk). 2018;97(5):75-78. doi: 10.17116/stomat20189705175.
The aim of the study was to improve the accuracy of the positioning of brackets in the conduct of orthodontic treatment of the anomalies of the dentoalveolar system. The developed method of positioning the brackets assumes a temporary fixation of the wire guides in accordance with the prospective longitudinal axis of the tooth before carrying out the orthopantomography (X-Ray picture) of the teeth. According to the OPG (orthopantomography), the accuracy of determining the longitudinal axes of the teeth is estimated, and if the fixed wire guides and longitudinal axes of the teeth do not coincide, the angle is measured and corrections are made by moving their gingival part to the required value, then the impressions from the patient's jaws are taken and diagnostic plaster models having precise guidelines axis. Brackets are fixed indirectly using a standard technique by aligning the longitudinal line of the bracket with the landmark indicated on the plaster model of the jaw. The proposed method makes it possible to increase the accuracy of the positioning of brackets on the tooth surface during orthodontic treatment of the anomalies of the dentoalveolar system.
该研究的目的是在牙-牙槽系统异常的正畸治疗中提高托槽定位的准确性。所开发的托槽定位方法是在进行牙齿曲面断层摄影（X线片）之前，根据牙齿预期的纵轴临时固定钢丝导板。根据口腔全景片（OPG）评估确定牙齿纵轴的准确性，如果固定的钢丝导板与牙齿纵轴不重合，则测量角度，并通过将其牙龈部分移动到所需值进行校正，然后取患者颌骨的印模并制作具有精确导向轴的诊断石膏模型。使用标准技术，通过将托槽的纵线与颌骨石膏模型上指示的标志对齐来间接固定托槽。所提出的方法使得在牙-牙槽系统异常的正畸治疗期间提高托槽在牙齿表面定位的准确性成为可能。
