在儿科门诊常常碰到一些患败血症的新生儿,追问家长,往往有给患儿挑“马牙”或用淘米水擦洗口腔的病史。其实,“马牙”是新生儿的一种正常现象,在医学上叫“上皮珠”,见于初生或生后不久的新生儿,是牙龈或上腭中线两侧的一些粟粒、米粒或更大一点的白色小颗粒状物。这 In pediatric outpatient clinics often encounter some newborns with sepsis, ask parents, often have children to pick “horse teeth” or scrub the mouth with a wash of water history. In fact, “horse teeth” is a normal phenomenon of newborns, medically called “epithelial beads”, found in newborns or newborns soon after birth, is the gingival or upper palate midline on both sides of some miliary, rice or more Little white granule. This