名词
中文翻译：下颌后退
同义词：
['mandibular retraction', 'mandibular protrusion']
例句：
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1. The patient's jaw was sore andswollen due to mandibular retrusion.
由于下颌后退，患者的下巴很痛且肿胀。
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2. During the surgery, the dentist had to perform mandibular retraction to expose thearea for the procedure.
在手术期间，牙医必须进行下颌后退以暴露区域进行手术。
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3. Mandibular retrusion can be a sign of an underlyingmedical condition, such as cleft palate or TMJ disorder.
下颌后退可能是某种潜在医疗状况的迹象，如唇裂或颞下颌关节紊乱。