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患者,女,15岁,因牙齿前突要求矫正就诊。检查:右侧磨牙超近中关系,左侧磨牙中性关系,双颌前突,前牙浅覆牙合,深覆盖。上颌双侧前磨牙区均有3颗体积及解剖形态完全一致的前磨牙。右侧3颗前磨牙顺序排列在牙弓内,第一前磨牙牙冠向远中倾斜,牙冠大部萌出,远中边缘嵴阻生;第二前磨牙向腭侧移位且近中邻牙合面龋坏;第三前磨牙偏颊侧;左侧3颗前磨牙呈三角形排列在前磨牙区,3颗前磨牙均颊侧近中旋转;第二前磨牙
Patient, female, 15 years old, required correction due to protrusion of the tooth. Check: the right molar relationship between the ultra-close, the left molar relationship, bimaxillary protrusion, anterior superficial occlusal, deep coverage. Maxillary bilateral premolar area has 3 volumes and anatomical premolar uniform. Three premolar teeth on the right side are arranged in the dental arch in sequence. The first premolar tooth crown is tilted to the far side, the majority of the crown is erupted, and the distal edge crest is impacted. The second premolar tooth is displaced to the palatal side and is near to the middle The occlusal surface of the third premolar is buccal; the three premolar teeth on the left side are arranged in the premolar area in a triangular shape, and the three premolar teeth are both rotated in the buccal side; the second premolar tooth