Abstract：
This case report describes a complex full-step class II case in a young adult patient treated with lingual straight-wire appliance and upper first molar extraction. As the patient refused a surgical treatment, she was offered the best possible camouflage with the double aim of obtaining an ideal occlusal relationship and maintaining the profile; appropriate biomechanical strategies, including extraction choice and anchorage control during space closure, were needed to achieve the planned results. This case report demonstrates the possibility of successfully resolving severe sagittal discrepancies in an adult patient without surgical treatment by means of a completely invisible non-compliance technique, with the extraction of the most compromised teeth. This report also underlines the need for careful planning during both diagnostic and treatment phases, in order to obtain the best results.
摘要：
此病例报告描述了一名年轻成年患者的复杂的完整步骤II类病例，该患者接受了舌侧直丝矫治器和上第一磨牙拔除术。由于病人拒绝手术治疗,她被提供了最好的伪装，双重目的是获得理想的咬合关系和保持轮廓;适当的生物力学策略，包括空间闭合过程中的提取选择和锚固控制，需要实现计划的结果。该病例报告表明，通过完全不可见的非依从性技术，无需手术治疗即可成功解决成年患者的严重矢状差异的可能性。拔除最受损的牙齿。这份报告还强调了在诊断和治疗阶段都需要仔细规划，以获得最佳效果。
