婴儿TMJ功能紊乱的研究对确定TMJ早期病变是否引起颅面发育异常和TMJ关联性疼痛,成年期下颌功能紊乱有重要意义。本文报道了3例可能代表解剖异常的婴儿TMJ杂音病例。患者发病年龄分别为3天,5个月和6个月,所有杂音的出现均没有创伤史及其它临床症状。未予治疗,两例在2～5月后自然消退,一例随年龄增加杂音出现频率减少,在两岁左右消失。所有病例在下颌运动 The study of infantile TMJ dysfunction plays an important role in determining whether TMJ early lesions cause craniofacial dysplasia and TMJ-associated pain, and mandibular dysfunction in adulthood. This article reports three cases of TMJ murmur that may represent anatomical abnormalities in infants. The patients' onset ages were 3 days, 5 months and 6 months respectively. All the noises appeared without trauma and other clinical symptoms. No treatment, two cases in 2 to 5 months after the natural regression, with an increase of age, murmur frequency decreased, disappeared at the age of two. All cases of movement in the jaw